Motorized Rotation Stage, 120 mm, High-Torque Full-Step Drive, Vacuum

RV High Performance Stepper Motor Rotation Stages

The RV120BPEV6 High Torque Vacuum Rotation Stage provides high-precision angular positioning accuracy combined with high load capacity. This 120 mm diameter stage features a Full-step bipolar stepper motor equipped with a reduction gear providing higher torque. All RV stages are constructed of tool steel, with rotation accuracy ensured by ground bearing surfaces. A double row of preloaded bearings allows for high off-center loads in a reduced footprint. The single monolithic design offers improved stiffness without compromising dynamic performance. Precise rotation is ensured by a precision ground and hardened worm gear. A rotary encoder mounted on the worm gear shaft provides 0.001° position feedback resolution.
Note: The cable supplied with the stage is not vacuum compatible due to various feed-through configurations and customer preferences. Please contact Newport for vacuum compatible cable options.

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.

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.

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.

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.

Specifications

Technical Specs

Angular Range
360°
Maximum Speed
1°/s
Minimum Incremental Motion
1.0 mdeg
Maximum Torque
10 N·m
Centered Load Capacity
900 N
Uni-directional Repeatability, Typical
±0.35 mdeg
Uni-directional Repeatability, Guaranteed
±1.0 mdeg
Bi-directional Repeatability, Typical
±0.7 mdeg
Bi-directional Repeatability, Guaranteed
±2.0 mdeg
Accuracy, Typical
±4.0 mdeg
Accuracy, Guaranteed
±7.5 mdeg
Wobble, Typical
±5 µrad
Wobble, Guaranteed
±10 µrad
Eccentricity, Typical
±0.63 µm
Eccentricity, Guaranteed
±2.0 µm

Inertia
70 kg.m²
Transversal Compliance
1.5 µrad/N·m
Origin Repeatability
±0.5 mdeg
Limit Switches
Optical, at ±170, can be disabled for continuous rotation
Encoder Resolution
0.001°
MTBF
10,000 h (25% load, 10% duty cycle)
Diameter
120 mm
Aperture Diameter
78 mm
Connector Type
DB25 Male
Thread Type
M4
Vacuum Compatibility
10^-6 Torr
Weight
6.5 kg
Compliance
RoHS 3, CE

Angular Range
360°
Maximum Speed
1°/s
Minimum Incremental Motion
1.0 mdeg
Maximum Torque
10 N·m
Centered Load Capacity
900 N
Uni-directional Repeatability, Typical
±0.35 mdeg
Uni-directional Repeatability, Guaranteed
±1.0 mdeg
Bi-directional Repeatability, Typical
±0.7 mdeg
Bi-directional Repeatability, Guaranteed
±2.0 mdeg
Accuracy, Typical
±4.0 mdeg
Accuracy, Guaranteed
±7.5 mdeg
Wobble, Typical
±5 µrad
Wobble, Guaranteed
±10 µrad
Eccentricity, Typical
±0.63 µm
Eccentricity, Guaranteed
±2.0 µm

Inertia
70 kg.m²
Transversal Compliance
1.5 µrad/N·m
Origin Repeatability
±0.5 mdeg
Limit Switches
Optical, at ±170, can be disabled for continuous rotation
Encoder Resolution
0.001°
MTBF
10,000 h (25% load, 10% duty cycle)
Diameter
120 mm
Aperture Diameter
78 mm
Connector Type
DB25 Male
Thread Type
M4
Vacuum Compatibility
10^-6 Torr
Weight
6.5 kg
Compliance
RoHS 3, CE

Resources & Downloads

2D Product Drawings

RV120PEBV6(445.3 kB, PDF)

Literature

RV Data Sheet.pdf(3.2 MB, PDF)
Vaccum Compatible Products Brochure(3.8 MB, PDF)

Manuals

RV - PP and PE Versions Manual.pdf(2.7 MB, PDF)

Related Products

Compatible Controllers

Based on axis required, choose a specific controller to pair with the stage. Along with an XPS-D or XPS-RLD controller, a driver module is required. Spindle mode is only available with XPS controllers.

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		XPS-D Universal High-Performance 1-8 Axis Motion Controller and Driver¹XPS-D Universal High-Performance 1-8 Axis Motion Controller and Driver	UNIVERSAL
		XPS-RLD Universal High-Performance 1-4 Axis Motion Controller and Driver²XPS-RLD Universal High-Performance 1-4 Axis Motion Controller and Driver	UNIVERSAL
		ESP302 3-Axis DC and Stepper Motion ControllerESP302 3-Axis DC and Stepper Motion Controller	UNIVERSAL

Notes:

Requires XPS-DRV11 driver module
Requires XPS-DRV11 driver module

Accessories

	Compare	Description	Compatibility	Drawings, CAD & Specs	Avail.	Price
		M-FK-BLXL-Allen Wrench Set, Sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10 mm, Metric	METRIC		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$37
		M-SK-M4ABlack Oxide Screw Kit, M4, Assortment, Qty 249	UNIVERSAL		In Stock FREE 2-day shipping on thousands of products on Newport.com Learn More	$75

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