Can a rotary actuator be used with speeds and payload above those shown in the catalog?

Yes, with the use of external shock absorbers. Consult the shock manufacturer with your application.

Can I supply my own air cylinder for a slide?

Yes, the “U” option allows for the customer to supply his own cylinder.

Do you have model selection software for the rotary actuators?

Yes (rotary Indexer-Gold Software). Yes (Rotary actuators- Robosizer software)

Does Destaco offer rotary indexers for clean room applications?

Yes. RDM.

How can a RR-36-76 unit accomplish a precision, mid-stop position?

Add a shot pin to the mid-position location.

How can I avoid air line flexing with my rotary actuators?

In a linear motion application, use a telescoping airlines.

How can I avoid air line twisting with my rotary actuators?

In a rotary motion application, use a rotary manifold.

How can I eliminate the DRG rotary backlash?

Apply hard stops to the object being rotated by it.

How can I get an accurate mid stop position in a rotary actuator?

The most actuate and repeatable mid stop can be achieved by mounting two rotary actuators, one on top of the other.

How can I increase the payloads for slides?

1. Utilize larger external shocks. 2. Consult the Destaco factory first.

How can I make a simple, four-position rotary actuator?

1. Mount two DRF Series rotary actuators to one another. 2. Allow for up-to four independently precision stopped, shocked, and sensed location. 3. A three-position rotary giving 0, 180, and 360 can be made by mounting two, 180-degree units together.

How can I make a simple, four-position slide?

1. Mount a DirectConnect thruster slide to a DirectConnect base slide with the axes parallel to one another. 2. Allow for up-to four independently precision stopped, shocked, and sensed locations.

How can rotaries provide a larger payload?

1. Utilize larger external shocks. 2. Consult the Destaco factory first.

How do conveyors work?

Using standard indexers and servo operated drives.

How do I adjust the rotation on a rotary actuator?

Using adjustable hardstops.

How do I eliminate backlash on rotary actuators?

The backlash for our rotary actuators is zero because of two racks engaged with pinion.

How does a pneumatic rotary actuator work?

Pneumatic actuated, double rack and pinion mechanism.

How does an indexer work?

It works on the principle of controlled cam actuation or motion control.

If air is leaking from the rotary actuator, could the possible cause be that the rotary actuator is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If air is leaking from the rotary actuator, could the possible cause be that the rotary actuator requires maintenance?

Yes - consult the catalog maintenance section for seal kits, repair instructions, and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If air is leaking from the rotary actuator, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other. The seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the pinion and body (if exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most rotary actuators are field repairable.

If air is leaking from the slide, could the possible cause be that the slide is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If air is leaking from the slide, could the possible cause be that the slide requires maintenance?

Yes - consult the catalog maintenance section for seal kits, repair instructions, and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If air is leaking from the slide, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other port. The seals are worn air comes out of the open port. 2. Place light machine oil at the interface of the piston rod (if it's exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most slides are field repairable.

If the rotary actuator bangs at the end of its stroke, could the possible cause be a defective shock asbsorber?

Yes - actuate the turntable by hand. If there is no resistance at the ends of the rotation, the shocks may need to be replaced. Some units have internal shocks present. Consult the product's catalog maintenance section for seal kits, repair instructions, and diagrams.

If the rotary actuator bangs at the end of its stroke, could the possible cause be that the payload or inertia is too large?

Yes - consult the product's catalo for maximum payload and rotational inertia specifications.

If the rotary actuator has erratic torque, could the possible cause be low air pressure?

Yes. 1. Consult the product's catalog for minimum air pressure requirements. 2. Check the air pressure at the slide. 3. Check for leaks, kinks, and breaks in the air lines.

If the rotary actuator has erratic torque, could the possible cause be that the air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the rotary actuator has erratic torque, could the possible cause be that the rotary actuator is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the rotary actuator has erratic torque, could the possible cause be that the rotary actuator requires maintenance?

Yes - consult the product's catalog maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the rotary actuator has erratic torque, could the possible cause be worn bearings?

Yes - without air pressure, move the rotary actuator by hand. If it feels rough or sticky, the bearings may require maintenance.

If the rotary actuator has erratic torque, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other. Seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the pinion and body (if exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most rotary actuators are field repairable.

If the rotary actuator has higher than normal torque, could the possible cause be a defective valve?

Yes. 1. Remove the air lines from the rotary actuator and see if it can be rotated by hand smoothly. 2. Check to see if the rotary actuator can be rotated with a separate shop air line.

If the rotary actuator has higher than normal torque, could the possible cause be high air pressure?

Yes - check the air pressure at the rotary actuator then reduce the pressure if needed.

If the rotary actuator has higher than normal torque, could the possible cause be that a flow control is required?

Yes - add a flow control to both ports.

If the rotary actuator has higher than normal torque, could the possible cause be that the flow control has been adjusted?

Yes - adjust the flow control to decrease flow rate to the rotary actuator. Lock the flow control if it has this feature.

If the rotary actuator has lower than normal torque, could the possible cause be a defective valve?

Yes. 1. Remove the air lines fro mthe rotary actuator and see if it can be rotated by hand smoothly. 2. Check to see whether the rotary actuator can be rotated with a separate shop air lines. 3. Check the valve that is connected to the rotary actuator. 4. Check for valve LEDs during process.

If the rotary actuator has lower than normal torque, could the possible cause be low air pressure?

Yes. 1. Consult the product catalog for minimum air pressure requirements. 2. Increase the pressure if needed. 3. Check for leaks, kinks, and breaks in the air lines.

If the rotary actuator has lower than normal torque, could the possible cause be that the pressurized air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the rotary actuator has lower than normal torque, could the possible cause be worn bearings?

Yes - without air pressure, move the rotary actuator by hand. If it feels rough, the bearings require maintenance.

If the rotary actuator has lower than normal torque, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other. The seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the pinion and body (if it's exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most rotary actuators are field repairable.

If the rotary actuator has rough actuation, could the possible cause be a defective valve?

Yes. 1. Remove the air lines from the rotary atuator and see whether it can be rotated by hand. 2. Check to see whether the rotary actuator can be rotated with a separate shop air line.

If the rotary actuator has rough actuation, could the possible cause be that the pressurized air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the rotary actuator has rough actuation, could the possible cause be that the rotary actuator is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the rotary actuator has rough actuation, could the possible cause be that the rotary actuator mechanism is contaminated?

Yes. 1. Inspect any openings in the rotary actuator to see if particulate or debris has entered it. 2. Check the product catalog for application instructions.

If the rotary actuator has rough actuation, could the possible cause be that the rotary actuator requires maintenance?

Yes - consult the catalog maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the rotary actuator has rough actuation, could the possible cause be worn bearings?

Yes - without air pressure, move the rotary actuator by hand. If it feels rough, the bearings require maintenance.

If the rotary actuator only rotates partially, could the possible cause be a broken rack or pinion?

Yes - if the rotary can be rotated by hand through part but not all of the rotation, the rack or pinion may be broken. Broken racks are easily replaced. Broken pinions need to be repaired at Destaco.

If the rotary actuator only rotates partially, could the possible cause be interference with other components?

Yes. 1. Check to see that the rotary actuator does not hit any other machine components during its travel. 2. Check to see that particulate, machining chips, or other debris isn't jamming the rotary actuator.

If the rotary actuator only rotates partially, could the possible cause be low air pressure at the rotary actuator?

Yes. 1. Check the air pressure at the rotary actuator. 2. Remove the air lines from the rotary actuator and see whether it can be rotated by hand. 3. Check to see whether the rotary actuator can be rotated with a separate shop air lines.

If the rotary actuator only rotates partially, could the possible cause be short actuation time from the PLC?

Yes - review the PLC program to ensure that the sequencing time doesn't exceed the actuation time mentioned in the slide's manual.

If the rotary actuator only rotates partially, could the possible cause be that the rotary actuator is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the rotary actuator only rotates partially, could the possible cause be that the rotary actuator requires maintenance?

Yes - consult the catalog maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the rotary actuator only rotates partially, could the possible cause be that there's a horizontal axis of rotation with off-center load?

Yes - if rotary is trying to lift an off-center load through gravity, it may require a counterweight.

If the rotary actuator only rotates partially, could the possible cause be worn bearings?

Yes - without air pressure, move the rotary actuator by hand. If it feels rough, the bearings require maintenance.

If the rotary actuator only rotates partially, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other. Seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the pinion and body (if exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most rotary actuators are field repairable.

If the rotary actuator rotates faster than normal, could the possible cause be high air pressure?

Yes. 1. Check the air pressure at the rotary actuator. 2. Consult the product catalog for maximum allowable pressure.

If the rotary actuator rotates faster than normal, could the possible cause be that flow control is required?

Yes - add a flow control to both ports. Note: flow controls come with most models.

If the rotary actuator rotates faster than normal, could the possible cause be that the flow control has been adjusted?

Yes - adjust flow control to decrease flow rate to the rotary actuator. Lock the flow control if it has this feature.

If the rotary actuator rotates faster than normal, could the possible cause be that the flow control is faulty?

Yes - remove the flow control and bench test it or replace it.

If the rotary actuator rotates in reverse operation, could the possible cause be an error in the PLC program?

Yes - review the PLC program.

If the rotary actuator rotates in reverse operation, could the possible cause be that the air lines are reversed?

Yes - switch the air lines going to the rotary actuator.

If the rotary actuator rotates in reverse operation, could the possible cause be that the valve is wired improperly?

Yes - check the wiring of the valve and the valve LED's when sequenced.

If the rotary actuator rotates slower than normal, could the possible cause be a defective valve?

Yes. 1. Remove the air lines from the rotary actuator and see if it can be rotated by hand smoothly. 2. Check to see if the rotary actuator can be rotated with a separate shop air line. 3. Check the valve connected to the rotary actuator. 4. Check for value LEDs during the process.

If the rotary actuator rotates slower than normal, could the possible cause be low air pressure?

Yes. 1. Consult the product catalog for minimum air pressure requirements. 2. Check the air pressure at the rotary actuator. 3. Check for leads, kinks, and breaks in the air lines.

If the rotary actuator rotates slower than normal, could the possible cause be that the flow control has been adjusted?

Yes - adjust the flow control to increase flow rate to the rotary actuator. Lock flow control if it has this feature.

If the rotary actuator rotates slower than normal, could the possible cause be that the flow control is faulty?

Yes - remove the flow control and bench test it or replace it.

If the rotary actuator rotates slower than normal, could the possible cause be that the pressurized air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the rotary actuator rotates slower than normal, could the possible cause be that the rotary actuator is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the rotary actuator rotates slower than normal, could the possible cause be that the rotary actuator requires maintenance?

Yes - consult the product catalog's maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the rotary actuator rotates slower than normal, could the possible cause be worn bearings?

Yes - without air pressure, move the rotary actuator by hand. If it feels rough or sticky, the bearings may require maintenance.

If the rotary actuator rotates slower than normal, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other. Seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the pinion and body (if exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most rotary actuators are field repairable.

If the rotary actuator won't rotate, could the possible cause be that no air pressure is reaching the rotary actuator?

Yes. 1. Remove the air lines from the rotary atuator and see whether it can be rotated by hand. 2. Check to see whether the rotary actuator can be rotated with a separate shop air line. 3. Check the valve connected to the rotary actuator. 4. Check for valve LEDs during the process. 5. Check the air pressure at the rotary actuator. 6. Check for leaks, kinks, and breaks in the air lines. 6. Run the program cycle to see whether air comes out of the removed airlines.

If the rotary actuator won't rotate, could the possible cause be that the rotary actuator is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the rotary actuator won't rotate, could the possible cause be that the sensors aren't positioned properly or are broken?

Yes. 1. Check for broken sensor wires. 2. Check that the sensor is plugged into the sensor cable properly. 3. Actuate the slide by hand to the ends of its stroke to see if the sensor's LEDs light up. 4. Re-adjust the sensor position until the sensor light

If the rotary actuator won't rotate, could the possible cause be that the the seals are worn?

Yes. 1. Remove the air lines from one port and pressurize the other. Seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the pinion and body (if exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most rotary actuators are field repairable.

If the rotary actuator won't rotate, could the possible cause be worn bearings?

Yes - without air pressure, move rotary actuator by hand. If it feels rough or sticky, the bearings require maintenance.

If the rotary actuator's sensor isn't detecting position, could the possible cause be that the sensor is broken?

Yes. 1. Check for broken sensor wires. 2. Check that the sensor is plugged into the sensor cable properly. 3. Run a magnet past the sensor if it is magnetoresistive or place a piece of steel on the detection surface for inductive sensors.

If the rotary actuator's sensor isn't detecting position, could the possible cause be that the sensor isn't positioned properly?

Yes. 1. Actuate the rotary actuator by hand to the ends of its stroke to see whether the sensor's LEDs light up. 2. Re-adjust the sensor's position until the sensor lights up.

If the slide actuates faster than normal, could the possible cause be that the air pressure is too high?

Yes. 1. Check the air pressure at the slide. 2. Consult the product's catalog for maximum allowable pressure.

If the slide actuates faster than normal, could the possible cause be that the flow control has been adjusted?

Yes - adjust the flow control to decrease the flow rate to the slide. Lock the flow control if it has this feature.

If the slide actuates faster than normal, could the possible cause be that the flow control is faulty?

Yes - remove the flow control and bench test it or replace it.

If the slide actuates faster than normal, could the possible cause be that the flow control is required?

Yes - add a flow control to this port.

If the slide actuates in reverse operation, could the possible cause be that the air lines are reversed?

Yes - switch the air lines going to the slide.

If the slide actuates in reverse operation, could the possible cause be that the valve is wired improperly?

Yes - check the wiring of the valve and the valve LED's when sequenced.

If the slide actuates in reverse operation, could the possible cause be that there's an error in the PLC program?

Yes - review the PLC program.

If the slide actuates slower than normal, could the possible cause be a defective valve?

Yes. 1. Remove the air lines from the slide and see whether it can be actuated by hand smoothly. 2. Check to see if the slide can be actuated with a separate shop air line. 3. Check the valve that's connected to the slide. 4. Check for valve LED's during the process.

If the slide actuates slower than normal, could the possible cause be that the air pressure is too low?

Yes. 1. Consult the product's catalog maintenance section for repair instructions and diagrams. 2. Check the air pressure at the slide. 3. Check for leaks, kinks, and breaks in the air lines.

If the slide actuates slower than normal, could the possible cause be that the flow control has been adjusted?

Yes - adjust the flow control to decrease the flow rate to the slide. Lock the flow control if it has this feature.

If the slide actuates slower than normal, could the possible cause be that the flow control is faulty?

Yes - remove the flow control and bench test it or replace it.

If the slide actuates slower than normal, could the possible cause be that the pressurized air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the slide actuates slower than normal, could the possible cause be that the slide is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options. 

If the slide actuates slower than normal, could the possible cause be that the slide requires maintenance?

Yes - consult the product catalog's maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the slide actuates slower than normal, could the possible cause be worn bearings?

Yes - without air pressure, move the slide by hand. If it feel rough or sticky, the bearings require maintenance.

If the slide actuates slower than normal, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other port. The seals are worn air comes out of the open port. 2. Place light machine oil at the interface of the piston rod (if it's exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most slides are field repairable.

If the slide bangs at the end of its stroke, could the possible cause be a defective shock absorber?

Yes - actuate the shock absorber plunger by hand. If there is no resistance or it is leaking oil, it needs to be replaced.

If the slide bangs at the end of its stroke, could the possible cause be that the payload is too large?

Yes - consult the slide's catalog to determine the maximum payload specs.

If the slide has a rough actuation, could the possible cause be a defective valve?

Yes. 1. Remove the air lines from the slide and see whether it can be actuated by hand smoothly. 2. Check to see if the slide can be actuated with a separate shop air line.

If the slide has a rough actuation, could the possible cause be that the pressurized air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the slide has a rough actuation, could the possible cause be that the slide is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the slide has a rough actuation, could the possible cause be that the slide mechanism is contaminated?

Yes. 1. Inspect any openings in the slide to see if particulate or debris has entered the slide. 2. Check the catalog for application restrictions.

If the slide has a rough actuation, could the possible cause be that the slide requires maintenance?

Yes - consult the product's catalog maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the slide has a rough actuation, could the possible cause be worn bearings?

Yes - without air pressure, move the slide by hand. If it feels rough or sticky, the bearings require maintenance.

If the slide has erratic thrust force, could the possible cause be low air pressure?

Yes. 1. Consult the slide's catalog for minimum air pressure requirements. 2. Check the air pressure at the slide. 3. Check for leaks, kinks, and breaks in the air lines.

If the slide has erratic thrust force, could the possible cause be that the pressurized air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the slide has erratic thrust force, could the possible cause be that the slide is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the slide has erratic thrust force, could the possible cause be that the slide requires maintenance?

Yes - consult the slide's catalog maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the slide has erratic thrust force, could the possible cause be worn bearings?

Yes - without air pressure, move the slide by hand. If it feels rough, the bearings require maintenance.

If the slide has erratic thrust force, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other port. The seals are worn air comes out of the open port. 2. Place light machine oil at the interface of the piston rod (if it's exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most slides are field repairable.

If the slide has lower thrust force than normal, could the possible cause be that the bearings are worn?

Yes - without air pressure, move the slide by hand. If it feels rough, the bearings require maintenance.

If the slide has lower thrust force than normal, could the possible cause be that the pressurized air system is contaminated?

Yes. 1. Look for particulate or water in the air lines. 2. Check that the air filter is clean.

If the slide has lower thrust force than normal, could the possible cause be that the seals are worn?

Yes. 1. Remove the air lines from one port and pressurize the other. The seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the piston rod (if it's exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most slides are field repairable.

If the slide has lower thrust force than normal, could the possible cause be that the the air pressure is too low?

Yes. 1. Consult the product's catalog for minimum air pressure requirements. 2. Check the air pressure at the slide. 3. Check for leaks, kinks, and breaks in the air lines.

If the slide has lower thrust force than normal, could the possible cause be that the valve is defective?

Yes. 1. Remove the air lines from the slide and see whether it can be actuated by hand smoothly. 2. Check to see whether the slide can be actuated with a separate shop air line. 3. Check the valve connected to the slide. 4. Check for valve LED's during process.

If the slide has more thrust force than normal, could the possible cause be a defective valve?

Yes. 1. Remove the air lines from the slide and see if it can be actuated by hand smoothly. 2. Check to see if the slide can be actuated with a separate shop air line.

If the slide has more thrust force than normal, could the possible cause be that flow control is required?

Yes - add a flow control to this port.

If the slide has more thrust force than normal, could the possible cause be that the air pressure is too high?

Yes - check the air pressure at the slide.

If the slide has more thrust force than normal, could the possible cause be that the flow control has been adjusted?

Yes - adjust the flow control to decrease the flow rate to the slide. Lock the flow control if it has this feature.

If the slide only actuates partially, could the possible cause be a short actuation time by the PLC?

Yes - review the PLC program to ensure that the sequencing time doesn't exceed the actuation time mentioned in the slide's manual.

If the slide only actuates partially, could the possible cause be bent guide shafts?

Yes - if the slide feels smooth in one portion of the stroke and tight in another, the guide shafts may be bent.

If the slide only actuates partially, could the possible cause be interference with other components?

Yes. 1. Check to see that the slide doesn't hit any other machine components during its travel. Check to see that particulate, machining chips, or other debris isn't jamming the slide.

If the slide only actuates partially, could the possible cause be low air pressure at the slide?

Yes. 1. Check the air pressure at the slide. 2. Remove the air lines from the slide and see if it can be actuated by hand. 3. Check to see whether the slide can be actuated with a separate shop air line.

If the slide only actuates partially, could the possible cause be that the slide is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the slide only actuates partially, could the possible cause be that the slide requires maintenance?

Yes - consult the product's catalog maintenance section for repair instructions and diagrams. Contact us if the maintenance section that came with your product is unavailable.

If the slide only actuates partially, could the possible cause be worn bearings?

Yes - without air pressure, move the slide by hand. If it feels rough or sticky, the bearings require maintenance.

If the slide only actuates partially, could the possible cause be worn seals?

Yes. 1. Remove the air lines from one port and pressurize the other. The seals are worn if air comes out of the open port. 2. Place light machine oil at the interface of the piston rod (if it's exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main product catalog. Most slides are field repairable.

If the slide won't actuate, could the possible cause be that the seals are worn?

Yes. 1. Remove the air lines from one port and pressurize the other port. The seals are worn air comes out of the open port. 2. Place light machine oil at the interface of the piston rod (if it's exposed) and look for bubbles. 3. Seal kits are available from the accessories section of the main catalog. Most slides are field repairable.

If the slide won't actuate, could the possible cause be that the sensors aren't positioned properly or broken?

Yes. 1. Check for broken sensor wires. 2. Check that the sensor is plugged into the sensor cable properly. 3. Actuate the slide by hand to the ends of its stroke to see if the sensor's LEDs light up. 4. Re-adjust the sensor position until the sensor lights up.

If the slide won't actuate, could the possible cause be that the slide is broken?

Yes - contact Destaco's Customer Service for warranty status, repair kits, or Destaco factory repair options.

If the slide won't actuate, could the possible cause be that there's no air pressure to slide?

Yes. 1. Remove the the air lines from the slide and see if it can be actuated by hand. 2. Check to see if the slide can be actuated with a separate shop air lines. 3. Check the valve that's connected to the slide. 4. Check for value LED's during process. 5. Check the air pressure on the slide. 6. Check for leaks, kinks, and breaks in the air lines. 6. Run the program cycle to see if air comes out of the removed airline.

If the slide won't actuate, could the possible cause be worn bearings?

Yes - without air pressure, move the slide by hand. If it feels rough, the bearings require maintenance.

If the slide's sensor isn't detecting position accurately, could the possible cause be that the sensor is broken?

Yes. 1. Check for broken sensor wires. 2. Check that the sensor is plugged into the sensor cable properly. 3. Run a magnet past the sensor if it is magnetoresistive or place a piece of steel on the detection surface for inductive sensors.

If the slide's sensor isn't detecting position accurately, could the possible cause be that the sensor isnt positioned properly?

Yes. 1. Actuate the slide by hand to the ends of its stroke and see whether the sensor's LEDs light up. 2. Re-adjust the sensor position until the sensor lights up.

Is a double rack rotary actuator better than a single rack version?

In many competitive models this is true as many competitive single rack models have backlash. Robohand single rack rotary actuators (DRF Series) with flange stops have zero backlash for precise endpoint positioning.

Should shock absorbers be used with slides?

We recommend shocks for nearly all linear motion applications.

What are applications for conveyors?

Material conveying. (industrial or medical)

What are precision-link conveyors?

It provides a multiple station chassis for the assembly of more complicated products.

What are some best practices for bench testing a DLB Series base slide?

Remember that the slide body will move towards the port that it being pressurized. Keep your hands and fingers out of the areas between the guide shafts.

What are some best practices for lubricating the guides of a slide?

Never use WD-40, a silicone grease, or oils on composite bearings.

What are the different types of conveyors?

Precision link conveyors with over/under mounting, carousel, chain, belt, linear motor actuated pallet conveyor, cam actuated conveyor, roller chain conveyor.

What are the symptoms of a failing rotary actuator?

Jerk at end position stop, new sounds, and/or leakage of air.

What is a good way to visualize rotational inertia for a rotary actuator payload?

Rotational inertias should be calculated by your CAD program or estimated by Robosizer. However, if you take the max payload and keep the material within the flange diameter, this gives an approximation. Keep in mind that the payload can be at any distance from the center of the rotary as long as the maximum payload and the maximum inertias are not exceeded.

What is a rotary actuator used for?

Precision rotary positioning, part orientation, loading, and unloading.

What is a rotary indexer?

A rotary indexing table is custom designed to make repetitive moves. Essentially, they are highly precise work-positioning devices that index parts to be worked or machined in multiple operations.

What is a servo positioner?

It is zero backlash servo drive compatible with industry-standard servo motors for precision control, efficiency, program & functional flexibility.

What is a sure way to damage a rotary actuator?

Exceeding the payload inertia guidelines will usually result in rotary actuator failure.

What is an indexing table?

Indexing tables follow similar principle as in rotary indexer but allows machining while tuning the table.

What is linear and rotary motion?

Linear motion involves an object moving from one point to another in a straight line. Rotational motion involves an object rotating about an axis.

What is meant by indexing mechanism?

Rotary indexing tables are machine tool positioning devices used to index parts in defined, angular increments so that they can be machined or assembled. During operation, the table indexes around a central axis, stops at a predetermined location, dwells in that position while an operation is performed, and then indexes to the next position.

What is the advantage of a rotary that stops on the payload rather than the drive piston & rack?

Depending upon the design it can yield greater holding torque and eliminate backlash is a single rack rotary.

What is the advantage of a slide with an internal cylinder vs. an external one?

Internal cylinder slides are much more compact and have fully repairable internal cylinders.

What is the advantage of flange output vs shaft output on a rotary actuator?

Flange output allows the payload to be attached directly to the flange without adding supporting bearings.

What is the advantage of using an independent hard stop?

Independent hard stops allow for replacement of shock absorbers without loss of end point positional accuracy.

What is the backlash of the rotary actuator (rack and pinion type)?

Zero backlash.

What is the difference between applied load and payload?

Payload is the weight of the part. Applied load is an external force on the part that may be physical, like a pressing operation, or a force generated due to acceleration effects on the part.

What is the difference between ball bushings and composite bushings?

Ball bushings are preloaded, have no play and have lower friction. Composites have some play and higher friction, but work in dirty environments.

What is the difference between zero backlash vs. some amount of backlash in a rotary actuator?

Zero backlash means the end position of the rotary is precise and loaded against a hard stop. Backlash means that the end position has a small amount of “play” in the endpoint position.

What is the purpose of a rotary table?

Purpose is to position devices used to index parts in defined, angular increments so that they can be machined.

What kind of cams does Destaco offer?

Roller gear, Right angle, Parallel CAMS (Motion types -Cycloidal, Modified Trapezoidal, Modified sine curve, Polynomial, modified sine constant velocity, modified sine quick return & synthesized modified sine hormonic curves.)

What type of oil does Destaco recommend for their gear reducers?

Lubricating oils should be high quality, well refined petroleum oils or snythetic lubricants with extreme pressure additives. They may be subjected to high operating temperatures, so they must have good resistance to oxidation. We recommend the following: 1. General Applications: ISO 220 grade oils with EP additives such as MOBILGEAR 630 (Exxon-Mobile) or OMALA 220 (Shell Oil). 2. Severe applications or for longer life: POil that meets API-GL-5 and Mil Spec 2105D/E parameters such as Mobilube HD Plus 80W90 (conventional) or Mobil Delvac Synthetic Gear Oil 75W90 (synthetic) 3. Servo-controlled applications: use Mobil SHC 634 (Exxon-Mobil). Note: When the gear reducer and Index Drive have a common oil reservoir (as with the 902RDM Index Drive and the R250 reducer), an AGMA #8 compound is recommended. One such lubricant is Exxon-Mobil's 600 W SUPER CYLINDER OIL. NOTE: If you cannot locate the oil listed, your supplied should be able to cross reference to another brand. NOTE: For lubricants used in Gear Reducers not sharing common oil with Index Drives see the GEAR REDUCER SERVICE STATION. DO NOT use oil with EP Additives in Gear Reducers. Lubricating oils used for gear reducers should be high quality, well refined petroleum or synthetic lubricants. These oils should be ISO 460 grade. Change the oil every 2,000 hours of operation, or every six months whichever occurs first. NOTE: Failure to comply with oil change intervals may void warranty. NORD gearboxes uses ISO VG-220 mineral oil with EP additives. SEW gearboxes uses ISO VG-150 OR VG-100 mineral oil.

What types of roller gears does Destaco offer?

RDM Series, RD Series, and RGD/RGS Series

When is bleeding a rotary actuator necessary?

Depends on application, it is used only when midstop position is required.

When would I use a “mid-stop option”?

If a third position, between the end position is needed. It should be noted that this is not a precision location and should be used only to clear tooling from the end stops, of for low precision locating.

Where are conveyors used?

Material conveying. (industrial or medical)

Why are flow controls recommended for nearly all linear motion applications?

Due to the extremely high speeds that long stroke air cylinders can develop, it is important to regulate this speed so as not to damage the slide when it comes to a stop.

Why do rotary actuators have “over travel”?

This helps to align the rotary to a machine that may be slightly out of alignment.

Why do some slides show deflection charts and others don’t?

If a slide is supported on both ends (base slide), its maximum deflection happens at mid stroke where no critical operations take place. For cantilevered slides (thruster slides), the deflection is very important as it takes place at the end of stroke where an operation takes place.

Why would I need telescopic air lines?

Telescopic air lines eliminate the need for flexing air lines in linear motion applications.

Why would I want to use a rotary manifold?

A rotary manifold allows compressed air to travel through the rotary without twisting the air lines, which could result in a breakdown.

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