X-RST-AE Series
High precision, high load motorized rotary stages with built-in controllers and direct encoders

Image is representative of the X-RST-AE Series and may not match the selected variant.
X-RST240B-AE56
360 Degree Rotation | 240 mm Diameter | Fine Resolution | High Torque | Large Aperture
Starting Price: $21,087 *
Standard Lead Time: 7-10 Days
X-RST240B-AE56 Specifications
Download Datasheet| Built-in Controller | |
| Range | +/- 360° |
| Manual Control | |
| LED Indicators | |
| Weight | 15.6 kg (34.392 lb) |
| Accuracy (unidirectional) | 0.008° (0.1396 mrad) |
| Repeatability | < 0.0015° (< 0.026 mrad) |
| Backlash | < 0.005° (< 0.087 mrad) |
| Radial Error Motion | +/- 2.5 µm (+/- 0.000098") |
| Axial Error Motion | < 4 µm (< 0.000157") |
| Tilt Error Motion | +/- 0.003° (+/- 52.36 µrad) |
| Microstep Size (Default Resolution) | 0.00027574° (4.812 µrad) |
| Default Resolution | 1/64 of a step |
| Maximum Torque | 70 N⋅m (51.66 lb⋅ft) |
| Maximum Continuous Torque | 45 N⋅m (33.21 lb⋅ft) |
| Maximum Centered Load | 3000 N (672.8 lb) |
| Maximum Moment (Tilt) | 200 N⋅m (147.6 lb⋅ft) |
| Stiffness (Tilt) | 8000 N⋅m/° (2.2 µrad/N⋅m) |
| Maximum Speed | 60°/s (10 rpm) |
| Minimum Speed | 0.000168°/s (2.932 µrad/s) |
| Speed Resolution | 0.000168°/s (2.932 µrad/s) |
| Maximum Angular Momentum | 1.6 kg⋅m2/s |
| Encoder Type | Direct reading optical encoder |
| Encoder Count Size | 0.00003814°/count (0.137 arcseconds/count) |
| Encoder Resolution | 23600 CPR (94400 states/rev) |
| Limit or Home Sensing | Optical Index Mark |
| Angular Motion Per Motor Rev | 3.5294° |
| Motor Steps Per Rev | 200 |
| Motor Type | Stepper (2 phase) |
| Motor Rated Current | 3000 mA/phase |
| Motor Winding Inductance | 2 mH/phase |
| Gear Ratio | 102:1 |
| Communication Interface | RS-232 |
| Communication Protocol | Zaber ASCII (Default), Zaber Binary |
| Data Cable Connection | Locking 4-pin M8 |
| Power Supply | 24-48 VDC |
| Power Plug | 2-pin Screw Terminal |
| Maximum Current Draw | 3600 mA |
| Stage Top Dimension | 240 mm (9.449") |
| Bearing Plane Offset | 30.75 mm (1.211") |
| Guide Type | Crossed-Roller Bearing |
| Mechanical Drive System | Precision Worm Gear |
| Mounting Interface | M6 threaded holes and M8 mounting holes |
* These are our direct prices in USD to customers in North America. If you are in Canada, click the Canadian flag icon at the top right of the page to see CAD prices. If you are in a country outside North America where we have an exclusive distributor, please check with the distributor for pricing. Distributor prices might be slightly higher to factor in shipping and import fees. Click here for a list of Zaber's Distributors.
Specification Charts & Notes
Torque Speed Performance
