X-RST Series
High load motorized rotary stages with built-in controllers

Image is representative of the X-RST Series and may not match the selected variant.
X-RST240B
240 mm Diameter | Large Aperture
Starting Price: $15,900 *
Lead Time: 7-10 Days?
X-RST240B Specifications
Download Datasheet| Built-in Controller | |
| Range | +/- 360° |
| Manual Control | |
| Weight | 14.5 kg (31.967 lb) |
| Accuracy (unidirectional) | 0.075° (1.30875 mrad) |
| Repeatability | < 0.0015° (< 0.026 mrad) |
| Backlash | < 0.05° (< 0.873 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 | |
| Limit or Home Sensing | Magnetic home sensor |
| 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 |
| Motor Frame Size | 23 |
| 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
Thrust or torque is a function of speed. The values given above are maximums. These values cannot both be achieved simultaneously (i.e. at maximum speed, the unit will not produce maximum thrust).
Torque Speed Performance

