RV High Performance Stepper Motor Rotation Stages

The RV Series steel rotation stages combine high precision positioning and extremely high load capacities to operate in a large variety of conditions for scientific and industrial applications. Five stage sizes and two stepper motor configurations are available, as are vacuum compatible versions. For applications requiring the highest torque, the BPE stepper motor version is recommended. Also, open-loop stepper motors can be a lower cost alternative to certain closed-loop DC servo systems.

Ideal for high load applications with up to 6500 N load and torque capacity of 80 N·m
All steel, single monolithic construction offers high stiffness and thermal stability
Double row preloaded ball bearings allow for high off-center loads in a reduced footprint
Precision ground and hardened worm gear with self-compensating preload
Lower cost alternative to certain closed-loop DC servo systems

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Showing 10 of 10 total products

Compatibility:

Description	Compatibility	Maximum Speed	Maximum Torque	Minimum Incremental Motion	Bi-directional Repeatability, Typical	Centered Load Capacity	Price
RVS80PPMotorized Rotation Stage, 80 mm, Stepper Drive	UNIVERSAL	20°/s	2 N·m	0.20 mdeg	±2.8 mdeg	900 N	$6,468
RV120BPPMotorized Rotation Stage, 120 mm, High-Torque Mini-Step Drive	UNIVERSAL	20°/s	15 N·m	1.0 mdeg	±0.7 mdeg	1800 N	$9,284
RV120BPEMotorized Rotation Stage, 120 mm, High-Torque Full-Step Drive	IMPERIAL	2°/s	20 N·m	1.0 mdeg	±0.7 mdeg	1800 N	$10,191
RV120BPEV6Motorized Rotation Stage, 120 mm, High-Torque Full-Step Drive, Vacuum	UNIVERSAL	1°/s	10 N·m	1.0 mdeg	±0.7 mdeg	900 N	$14,084
RV160BPPMotorized Rotation Stage, 160 mm, High-Torque Mini-Step Drive	UNIVERSAL	20°/s	20 N·m	1.0 mdeg	±0.7 mdeg	2700 N	$11,554
RV160BPEMotorized Rotation Stage, 160 mm, High-Torque Full-Step Drive	UNIVERSAL	2°/s	35 N·m	1.0 mdeg	±0.7 mdeg	2700 N	$13,136
RV240BPPMotorized Rotation Stage, 240 mm, High-Torque Mini-Step Drive	UNIVERSAL	20°/s	22 N·m	1.0 mdeg	±0.6 mdeg	4000 N	$13,737
RV240BPEMotorized Rotation Stage, 240 mm, High-Torque Full-Step Drive	UNIVERSAL	2°/s	60 N·m	1.0 mdeg	±0.6 mdeg	4000 N	$16,843
RV350BPPMotorized Rotation Stage, 350 mm, High-Torque Mini-Step Drive	UNIVERSAL	20°/s	25 N·m	1.0 mdeg	±0.6 mdeg	6500 N	$19,619
RV350BPEMotorized Rotation Stage, 350 mm, High-Torque Full-Step Drive	UNIVERSAL	2°/s	80 N·m	1.0 mdeg	±0.6 mdeg	6500 N	$21,874

Notes:

Folded version for applications with space constraints and DC Motor version are also available.

Compatible Controllers

Compatible motion controllers for these stepper motor driven stages are:

XPS-RLD Motion Controller ( or Axis): Requires an Driver Module.
XPS-D Motion Controller (, , or Axis): Requires an Driver Module.
ESP302 Motion Controller (, , or Axis): Plug and Play compatible with ESP302 Motion Controller.
For RVS80PP only, * Single Axis Motion Controller: 0.50 mdeg MIM when used with SMC100PP.

Specifications

Angular Range
360°
Drive Mechanism
Ground worm gear with self compensating preload
Bearings
Double row ball bearings
Worm Gear Ratio
RVS80: 1:180; RV120-RV350: 1:90
Origin
Optical

Limit Switches
Optical, at ± 170°, can be disabled for continuous rotation
Feedback
Worm-mounted rotary encoder (but no feedback for RVS80)
Base Material
Stainless Steel
Cable Length
3 m

Features

Steel Construction

The tool steel construction ensures enhanced rotation accuracy due to the ground bearing surfaces. The single monolithic design offers improved stiffness and thermal stability without compromising dynamic performance.

Highest Load Capacity

The double row of preloaded ball bearings allows for higher off center loads for its small footprint. The largest member of the RV stepper motor product family can bear up to 650 kg or rotate up to 20 °/s while maintaining eccentricity of less than 4 µm.

RVS80 Load Characteristics

Full-Step and Mini-Step Stepper Motors

Full-step (BPE and PE) and mini-step (BPP and PP) versions of the RV stepper motor stages are available. The full-step version is equipped with a reduction gear to obtain higher torque and is primarily designed for applications requiring the direct positioning accuracy to be maintained to within the stage's mechanical resolution when power is switched off. The mini-step versions offer a 1/10-step per encoder count, enabling speed of up to 20°/sec. With the exception of the RVS80PP, these stages feature a worm-mounted rotary encoder for improved accuracy and repeatability and to detect motor stalling, an important feature for applications with high acceleration ramps and high torques or payload inertias. For the RVS80PP, position is attained by the number of commanded steps and micro-steps.

RV Load Characteristics - Horizontal Configuration

Vacuum Compatible Versions

Vacuum compatible verions of the RV series full-step stepper motor stages are available. They can be used in vacuum environment down to 10^-6 hPa. Check out our vacuum products brochure for more information. Contact us today to discuss your application requirements.

RV Load Characteristics - Vertical Configration

Configurable Limit Switches

Most of the RV models are designed with optical limit switches to limit movement to 170°. These can be enabled or disabled for complete 360° motion with a simple "Allen" wrench.

Metrology Report Included at No Additional Cost

Newport guarantees specification values which are measured and recorded following ASME B5.57 and ISO 230-2 standards. The typical performance values are two times better than the guaranteed specifications.