Linear Slide Actuators - Screw Driven
Single – Multi-Axis Actuators, 250 – 1000 Lbs. Capacities
Paletti screw driven slide actuators provide Guided Motion in a single unit and are ideally suited for your material handling and positioning tasks. Additionally, our screw actuators are easy to incorporate into single or multi axis applications and offer long service life with minimal noise and maintenance.
Paletti’s screw driven linear axis systems are ideally suited for applications with high load forces that require high repeatability and accuracy. Paletti screw actuators are driven either with ball or trapezoid screws.
Depending on the model for a given application, the actuators will be configured with an internal and/or external carriage to the rail.
Model Overview - Screw Actuators
| Model | Screw Type and Pitch | Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Max Speed (m/s - in/s) | Torque to Raise 1kN (in-lb / Nm) |
|---|---|---|---|---|---|---|
| BARU250E | Ball 20 x 5 | 250 / 1112 | 450 / 2000 | 875 / 3900 | 0.175 - 7 | 7.83 / .885 |
| BARU250G | Ball 20 x 20 | 250 / 1112 | 450 / 2000 | 875 / 3900 | 0.635 - 25 | 31.33 / 3.54 |
| TTRU250D | Trap 20 x 4 | 250 / 1112 | 450 / 2000 | 875 / 3900 | 0.14 - 5.5 | 16.11 / 1.82 |
| BARU350E | Ball 20 x 5 | 350 / 1555 | 450 / 2000 | 875 / 3900 | 0.165 - 6.5 | 7.83 / .885 |
| BARU350G | Ball 20 x 20 | 350 / 1555 | 450 / 2000 | 875 / 3900 | 0.635 - 25 | 31.33 / 3.54 |
| TTRU350D | Trap 20 x 4 | 350 / 1555 | 450 / 2000 | 875 / 3900 | 0.135 - 5.25 | 16.11 / 1.82 |
| BARU450E | Ball 20 x 5 | 450 / 2000 | 450 / 2000 | 875 / 3900 | 0.155 - 6 | 7.83 / .885 |
| BARU450G | Ball 20 x 20 | 450 / 2000 | 450 / 2000 | 875 / 3900 | 0.635 - 25 | 31.33 / 3.54 |
| TTRU450D | Trap 20 x 4 | 450 / 2000 | 450 / 2000 | 875 / 3900 | 0.125 - 5 | 16.11 / 1.82 |
| BASU1000E | Ball 20 x 5 | 1000 / 4448 | 2484 / 11050 | 1281 / 5700 | 0.14 - 5.5 | 7.83 / .885 |
| BASU1000G | Ball 20 x 20 | 1000 / 4448 | 2484 / 11050 | 1281 / 5700 | 0.585 - 23 | 31.33 / 3.54 |
*Slide table to the left to see more data
Screw Driven Linear Slide Actuators – Design Options
Fixed / Float Bearing Screw Support
Typical thread-forms for the Ball and Trapezoid Screws used in Paletti screw driven actuators
All Paletti screw actuators are provided with the classic fixed (double bearing) – float (single bearing) screw supports shown above, custom bearing support needs can also be accommodated.
Paletti offers both the ball and trapezoid screw options shown above within our actuators. Common to the industry; we refer to thread forms for our screws by screw diameter x and then thread pitch (for example 20mm x 5mm).
Ball and Trapezoid Screw Actuator Options, Advantages, and Disadvantages:
- 20mm x 20mm ball screw slide actuators – are highly efficient, capable of high speeds, and can offer long life spans and high duty cycles. However, the torque requirements for these models can be high.
- 20mm x 5mm ball screw slide actuators – are highly efficient, operate at moderate and easy to control speeds, and can offer long life spans and high duty cycles. The torque requirements are typically low.
- 20mm x 4mm trapezoid screw slide actuators – operate at moderate and easy to control speeds. Offer precise motion. Low torque requirements. The shallow pitch screw thread allows for eliminating the need for a motorized brake in some applications.
Some additional product advantages with Paletti screw driven slide actuators:
- Single axis through multi-axis configurations
- Internal or External to the rail carriages configurations with either with hardened and ground rollers and rails, or re-circulating ball bearings and rails
- Different screw pitches available to more closely match the desired speed
- Excellent lead accuracy control
- Paletti ball screw actuators are 90% efficient for low power requirements
- Customizable dimensions available for the carriage
- End of carriage covers with lubrication ports and brushes to help keep the rails clean
- Options for motor / gear reducer mounts
- Options for mechanical or electronic limits
- Single piece carriage and rail construction
- 8mm T-Slot mounting functionality
- Corrosion resistant component options
Please Note – the numbers in these dimensional drawings and tables represent performance parameters for our standardized model. We can always customize a model more specifically to your application. In addition to the information provided here, please also see our information under the Engineering Support tab, or in the online resources at the bottom of this page.
Additionally – the Max Speed ratings shown below are for applications with 1 meter stroke applications or less, please contact our engineering group to confirm critical rotational speeds at longer lengths. The specifications shown in our tables represent the actuators’ capabilities. Final actuator performance will always vary pending motor and gearing selection.
The standard lead error for our ball screws is +/- 52um/300mm. The standard lead error for our trapezoid screws is +/- 75um/300mm.
250Lbs / 1112N Capacity, Low-Torque Ball Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BARU250E | 250 / 1112 | 450 / 2000 | 875 / 3900 | 1372 / 155 | 708 / 80 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.175 m/s - 7 in/s | 7.83 / .885 | 20 x 5 | 0.041 | 90% | 4.8 |
*Slide table to the left to see more data
250Lbs / 1112N Capacity, High-Speed Ball Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BARU250G | 250 / 1112 | 450 / 2000 | 875 / 3900 | 1372 / 155 | 708 / 80 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.635 m/s - 25 in/s | 31.33 / 3.54 | 20 x 20 | 0.041 | 90% | 4.8 |
*Slide table to the left to see more data
250Lbs / 1112N Capacity, Self-Locking Trapezoid Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| TRRU250D | 250 / 1112 | 450 / 2000 | 875 / 3900 | 1372 / 155 | 708 / 80 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.14 m/s - 5.5 in/s | 16.11 / 1.82 | 20 x 4 | 0.240 | 35% | 4.8 |
*Slide table to the left to see more data
These models are self-locking in certain applications, contact our engineering group for further information.
350Lbs / 1555N Capacity, Low-Torque Ball Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BARU350E | 350 / 1555 | 450 / 2000 | 875 / 3900 | 2390 / 270 | 1239 / 140 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.165m/s - 6.5in/s | 7.83 / .885 | 20 x 5 | 0.041 | 90% | 6.4 |
*Slide table to the left to see more data
350Lbs / 1555N Capacity, High-Speed Ball Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BARU350G | 350 / 1555 | 450 / 2000 | 875 / 3900 | 2390 / 270 | 1239 / 140 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.635 m/s - 25 in/s | 31.33 / 3.54 | 20 x 20 | 0.041 | 90% | 6.4 |
*Slide table to the left to see more data
350Lbs / 1555N Capacity, Self-Locking Trapezoid Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| TRRU350D | 350 / 1555 | 450 / 2000 | 875 / 3900 | 2390 / 270 | 1239 / 140 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.135m/s-5.25in/s | 16.11 / 1.82 | 20 x 4 | 0.240 | 35% | 6.4 |
*Slide table to the left to see more data
These models are self-locking in certain applications, contact our engineering group for further information.
450Lbs / 2000N Capacity, Low-Torque Ball Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BARU450E | 450 / 2000 | 450 / 2000 | 875 / 3900 | 3761 / 425 | 1947 / 220 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.155 m/s - 6 in/s | 7.83 / .885 | 20 x 5 | 0.041 | 90% | 8.4 |
*Slide table to the left to see more data
450Lbs / 2000N Capacity, High-Speed Ball Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BARU450G | 450 / 2000 | 450 / 2000 | 875 / 3900 | 3761 / 425 | 1947 / 220 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.635 m/s - 25 in/s | 31.33 / 3.54 | 20 x 20 | 0.041 | 90% | 8.4 |
*Slide table to the left to see more data
450Lbs / 2000N Capacity, Self-Locking Trapezoid Screw Driven, Roller-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| TRRU450D | 450 / 2000 | 450 / 2000 | 875 / 3900 | 3761 / 425 | 1947 / 220 | 885 / 100 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.125 m/s - 5 in/s | 16.11 / 1.82 | 20 x 4 | 0.240 | 35% | 8.4 |
*Slide table to the left to see more data
These models are self-locking in certain applications, contact our engineering group for further information.
1000Lbs / 4448N Capacity, Low-Torque Ball Screw Driven, Ball-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BASU1000E | 1000 / 4448 | 2484 / 11050 | 1281 / 5700 | 8850 / 1000 | 10620 / 1200 | 3982 / 450 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.14 m/s - 5.5 in/s | 7.83 / .885 | 20 x 5 | 0.041 | 90% | 3.5 |
*Slide table to the left to see more data
1000Lbs / 4448N Capacity, High-Speed Ball Screw Driven, Ball-Slide Actuator
| Model | Max Dynamic Load (Lb/N) | Static Axial Load (Fz)(Lb/N) | Static Radial Load (Fy)(Lb/N) | Static Moment Load (Mz)(in-lb/Nm) | Static Moment Load (My)(in-lb/Nm) | Static Moment Load (Mx)(in-lb/Nm) |
|---|---|---|---|---|---|---|
| BASU1000G | 1000 / 4448 | 2484 / 11050 | 1281 / 5700 | 8850 / 1000 | 10620 / 1200 | 3982 / 450 |
| Max Speed | Torque to Raise 1kN (in-lb/Nm) | Screw Diameter and Pitch(mm) | Screw and Nut Backlash (mm) | Movement Efficiency | Carriage Weight (kg) | |
| 0.585 m/s - 23 in/s | 31.33 / 3.54 | 20 x 20 | 0.041 | 90% | 3.5 |
*Slide table to the left to see more data
Since our actuators, aluminum framing, and conveyors all use the same 8mm T-Slot, it was very easy for us to complete the rest of the system structure, add the conveyor for the initial transport, and then add perimeter frame guarding around the entire system.
We invite you to review the attached pdf’s and online resource links below; the framing profile links contain tabs for our online 3D modeling and stress calculation tools, or please contact us for help anytime.
Please Note – contents shown by clicking on the below on-line resources will open in a new browser window. When you are done reviewing those contents, simply close that window to continue with this page.
Catalog page PDFs:
- LinearActuator-BARU250E UprightStyle-CatalogPage.pdf
- LinearActuator-BARU250G UprightStyle-CatalogPage.pdf
- LinearActuator-TRRU250D UprightStyle-CatalogPage.pdf
- LinearActuator-BARU350E UprightStyle-CatalogPage.pdf
- LinearActuator-BARU350G UprightStyle-CatalogPage.pdf
- LinearActuator-TRRU350D UprightStyle-CatalogPage.pdf
- LinearActuator-BARU450E UprightStyle-CatalogPage.pdf
- LinearActuator-BARU450G UprightStyle-CatalogPage.pdf
- LinearActuator-TRRU450D UprightStyle-CatalogPage.pdf
- LinearActuator-BASU1000E UprightStyle-CatalogPage.pdf
- LinearActuator-BASU1000G UprightStyle-CatalogPage.pdf
- ProfileCentralFasteners-16-28-30-40-60-80-120mm-CatalogPage.pdf
- ProfileT-Nuts-16-28-30-40-60-80-120mm-CatalogPage.pdf
Common accessories – Fastening Hardware:
The Paletti hardware has been custom engineered specifically for our products, and is quick and simple to use. Our central fasteners are an excellent choice for most corner assembly needs. Our T-Nuts are commonly used in some corner assembly or other assembly needs. Particularly, the push-in T-Nuts are very useful and also offer the benefit of being installed and positioned after the rest of the assembly has been completed and with the option for mounting the assembly to other surfaces.
SV1211V – Central Fastener with anti-rotation, ball spring, and standard material:
https://paletti.shop/en/products/fasteners/central-fasteners-40/sv1211v-central-fastener-svSV1350V – Central Fastener with anti-rotation, ball spring, and stainless material:
https://paletti.shop/en/products/fasteners/central-fasteners-40/sv1350v-central-fastener-sv-stainlessSV2102V – Push-in type T-Nut M8 with ball spring, and standard material:
https://paletti.shop/en/products/fasteners/t-nuts/sv2102v-t-nut-m8-ball-type-push-inSV2106V – Push-in type T-Nut M8 with ball spring, and stainless material:
https://paletti.shop/en/products/fasteners/t-nuts/sv2106v-t-nut-m8-ball-type-push-in-stainlessSV2002V – Slide-In type T-Nut M8 with ball spring, and standard material:
https://paletti.shop/en/products/fasteners/t-nuts/sv2002v-t-nut-m8-ball-type-slide-inSV2003V – Slide-In type T-Nut M8 with ball spring, and stainless material:
https://paletti.shop/en/products/fasteners/t-nuts/sv2003v-t-nut-m8-ball-type-slide-in-sEngineering resources – online resources for our Linear Actuators are not available at the moment. Please check back with us as we hope to have them available soon. Meanwhile, please feel free to contact us as we will be glad to help you select the correct actuator and provide a 3D model for your application needs.