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RV Series High-Performance Precision Rotation Stages

RV Series High-Performance Precision Rotation Stages
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RV Series High-Performance Precision Rotation Stages - 1

814 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 M o t o r i z e d P o s i t i o n i n g MOTORIZED ROTATION MOTORIZED LINEAR STAGES TECHNICAL REFERENCE STAGES SYSTEMS CONTROLLERS AND AMPLIFIERS MOTORIZED ACTUATORS MOTORIZED OPTICAL MOUNTS RV Series High-Performance Precision Rotation Stages • Precision 80–350 mm diameter rotation stages • Monolithic design ensures high structural stiffness • Ideal for high-load application • High-accuracy versions with direct reading encoder and better than 0.0001° (0.36 arcsec) resolution The RV Series rotation stages provide high-precision angular positioning accuracy combined with high load capacity. There are five stage sizes and six drive configurations available, optimizing load capacity, torque, speed and resolution for a variety of operating conditions. 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. The largest RV stage can bear up to 6500N or rotate up to 80 °/s, while maintaining less than 4 um eccentricity. 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 (0.00025° resolution with RVS80CC) on the standard configurations. For more demanding applications, the HAT and HAHLT options are available on the RV120 to RV350 models. These stages are equipped with a direct reading optical encoder attached to the moving platen for superior resolution and accuracy. The selection of the drive configuration should be based on the precision and speed requirements relative to the inertia of the payload (see this page). Motor Drive Versions Stepper motor-driven stages are available in full step PE and ministep PP versions. The mini-step drive version (PP) enables DC motor-driven stages are available in high speed (CC and HAT) and high torque (CCHL and HAHLT) versions.The CC and HAT versions enable speeds up to 80 °/s. The HAT features a high-resolution direct reading encoder and tachometer for superior repeatability, position stability and speed regulation. The CCHL and HAHLT versions are equipped with a reduction gear providing higher torque and payload inertia capacity. The HAHLT features a high-resolution direct reading encoder and tachometer for superior repeatability, position stability and speed regulation. Design Details Base Material Stainless Steel Bearings Double row of ball bearings Drive Mechanism Ground worm gear with self compensating preload Worm Gear Ratio RVS80: 1:180 RV120–RV350: 1:90 Reduction Gear Reduction gear before encoder on some versions (please contact Newport for details) Feedback RVS80CC: Worm mounted rotary encoder, 8,000 pts/rev., Index pulse RVS80PP: None. One full-step equals 0.01° RV120 to RV350, except for HAT and HAHLT versions: Worm mounted rotary encoder, 4,000 pts/rev., Index pulse HAT and HAHLT versions: Direct reading optical encoder on the rotating platen, 20 ìm signal period Limit Switches Optical, at ± 170°, can be disabled for continuous 360° rotation (except HAT and HAHLT) Origin Optical Cable 3 m long cable included Vacuum Compatibility Vacuum compatible versions are available up to 10-6 hPa using full-step motor (PEV6) Weight [lb (kg)] RVS80 4.0 (1.8) RV120 14.3 (6.5) RV160 19.8 (9) RV240 35.3 (16) RV350 57.5 (27) – RV120HAT 17.6 (8) RV160HAT 24.2 (11) RV240HAT 41.9 (19) RV350HAT 72.8 (33) high angular speed motions up to 20 °/s. The larger models, RV120PP to RV350PP, feature a worm mounted rotary encoder for improved accuracy and repeatability. The encoder also provides a method for detecting motor stalling, an important feature for applications with high acceleration ramps and high torques or payload inertias. The RVS80PP does not use an encoder. Instead, position is attained by the number of commanded steps and micro-steps. The high output torque of the stepper motor, combined with extensive performance tests, ensures position accuracy as long as the recommended load, torque and payload inertia are not exceeded. The RVS80PP provides very high motion sensitivity with good linearity between commanded micro-steps and the actual motion of the stage at a very reasonable price. The full-step PE version is equipped with a reduction gear providing higher torque. This version is only available on the models RV120 to RV350 and is recommended for high inertia payloads and vacuum applications. NEW

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RV Series High-Performance Precision Rotation Stages - 2

M o t o r i z e d P o s i t i o n i n g 815 Email: sales@newport.com • Web: newport.com TECHNICAL REFERENCE MOTORIZED LINEAR STAGES MOTORIZED ROTATION STAGES MOTORIZED OPTICAL MOUNTS MOTORIZED ACTUATORS CONTROLLERS AND AMPLIFIERS SYSTEMS This Azimuth/Elevation gimbal system positions a 350 mm dia. mirror that can be used for laser based qualification and characterization of precision optical sensors, LIDAR analysis, or target tracking. Specifications Travel Range (°) 360 continuous With disabled limits, except HAT & HAHLT ±170 HAT & HAHLT versions Resolution (°) 0.001 Except RVS80, HAT &...

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RV Series High-Performance Precision Rotation Stages - 3

816 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 M o t o r i z e d P o s i t i o n i n g MOTORIZED ROTATION MOTORIZED LINEAR STAGES TECHNICAL REFERENCE STAGES SYSTEMS CONTROLLERS AND AMPLIFIERS MOTORIZED ACTUATORS MOTORIZED OPTICAL MOUNTS Load Characteristics RVS80 RV120 RV160 RV240 RV350 Cz, normal centered load capacity (N) 900 1800 2700 4000 6500 a, construction parameter (mm) 30 40 50 70 100 b*, (mm) except HAT & HAHLT 39 53 57 59 73 b*, (mm) for HAT & HAHLT 71 75 77 91 k, radial compliance (ìrad/Nm) 3.5 1.5 0.6 0.3 0.1 QH, Off-center load, vertical rotation axis QH Cz / (1+D/a) QV,...

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RV Series High-Performance Precision Rotation Stages - 5

818 Phone: 1-800-222-6440 • Fax: 1-949-253-1680 M o t o r i z e d P o s i t i o n i n g MOTORIZED ROTATION MOTORIZED LINEAR STAGES TECHNICAL REFERENCE STAGES SYSTEMS CONTROLLERS AND AMPLIFIERS MOTORIZED ACTUATORS MOTORIZED OPTICAL MOUNTS Dimensions Model A B C D E F G H I J K N P Q RV120 126 155 78 93 99 115.5 14 86 80 63 34 19 4 15 RV160 163 192 110 129 134 152 14 89 98 81.5 36 18.5 5 14.5 RV240 237 275 175 194 204 222 16 93 132.5 119.5 40 20.3 7 16.6 RV350 356 395 280 302 315 331.5 17.5 108 189 179 50 21.3 8 17.3 Dimensions Model R S T U V W X Y Z a b c á RV120 4 M4 90 87.5 6 6 60 137 5...

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