CRB1 / CRB2 Series Vane Type Rotary Actuator

CRB1 / CRB2 Series Vane Type Rotary Actuator (SOLH Interchangeable)

Brand: SOLH by Richge Technology 

Product Positioning & Series Core Difference

     SOLH CRB1 and CRB2 are vane-type rotary swing cylinders driven by single/double vanes. Without gear meshing clearance, they feature ultra-compact body, low rotary inertia and ultra-fast response.

     -- CRB2 (Small Series): Bore 10~40mm for light load & narrow space, compact lightweight design

     -- CRB1 (Large Series): Bore 50~100mm for heavy load & high torque, full bearing support with superior impact resistance

     Single vane max swing angle up to 270°/280°, double vane max 90°/100°. Widely used for fast rotary flipping, indexing and positioning automation stations.

  1. CRB2 Small Standard Series

     -- Bore sizes: 10, 15, 20, 30, 40mm

     -- Vane options: S single vane / D double vane

     -- Swing angle: Single vane 90°/180°/270°; Double vane 90°/100°

     -- Core merits: Ultra compact, lightweight, low startup pressure, side/axial dual porting, optional angle adjuster & magnetic switch

     -- Applications: Light load high-speed rotation, confined space equipment, 3C electronics, packaging, miniature automation

  2. CRB1 Large Heavy-Duty Series

     -- Bore sizes: 50, 63, 80, 100mm

     -- Vane options: S single vane / D double vane

     -- Swing angle: Single vane 90°/180°/270°/280°; Double vane 90°/100°

     -- Core merits: High output torque, heavy load bearing, full bearing support, shock resistant, long service lifespan

     -- Applications: Heavy workpiece flipping, large-scale indexing, heavy rotary fixtures, heavy industry assembly lines

Universal Core Technical Specifications

  1. General Standard Parameters

  2. Theoretical Output Torque @ 0.5MPa (Core Selection Index)

   2.1 CRB2 Torque Table

   2.2 CRB1 Torque Table

  3 Allowable Radial & Axial Load Reference

     -- CRB2-20: Radial 120N, Axial 80N

     -- CRB1-50: Radial 245N, Axial 196N

     -- CRB1-100: Radial 588N, Axial 490N

Internal Structure & Vane Working Principle

  1. Main components: Cylinder body, single/double rotary vane, output shaft, sealing assembly, end rubber buffer, angle adjustment bolts

  2. Working logic: Compressed air enters one chamber to push the vane to rotate around central shaft while opposite chamber exhausts.

     -- Double vane: Torque doubled, limited swing angle ≤100°

     -- Single vane: Wider swing range up to 270°

  3. Unique Core Advantages

     -- No gear & rack structure, zero backlash, smooth silent rotation without impact vibration

     -- Ultra compact outline, low rotary inertia, ultra-fast response (90° rotation < 0.1s)

    -- Optional hollow through shaft, convenient for internal tubing & wiring routing

     -- Dual end fine-tune bolts for stroke limit; single vane adjustable 0~270°, double vane 0~90°

Complete Model Coding Rules

  1. CRB2 Model Example: CRB2BW20-180SZ

     -- CRB2 = Small vane rotary actuator series

     -- B = Basic flange mount; L = Foot bracket mount

     -- W = Double extended shaft; blank = Single shaft

     -- 20 = Bore size (10/15/20/30/40)

     -- 180 = Swing angle (90/180/270)

     -- S = Single vane; D = Double vane

     -- Z = Equipped with angle adjustment unit; blank = standard without adjuster

          Prefix CDRB2 = Built-in magnetic ring for magnetic switch installation

  2. CRB1 Model Example: CRB1BW50-90D

     -- CRB1 = Large heavy-duty vane rotary series

     -- B = Basic mount; W = Double shaft

     -- 50 = Bore size (50/63/80/100)

     -- 90 = Swing angle (90/180/270/280)

     -- D = Double vane; S = Single vane

        Prefix CDRB1 = Magnetic ring integrated model

Step-by-Step Selection Guide & Industrial Applications

  1. Selection Priority Rules

     -- Torque & dimension split: Light load narrow space → CRB2 (10~40); Heavy high torque rotation → CRB1 (50~100)

     -- Swing angle requirement: Rotation over 90° → Single vane S; Max torque within 90° → Double vane D

     -- Precision & speed trade-off: Vane type zero backlash, repeat positioning ±0.1°, ideal for high-speed light-duty; Heavy high-precision bearing load prefer MSQ rack-pinion rotary table

     -- Function options: Fine angle limit needed – select suffix Z angle adjust unit; PLC position feedback required – choose CDRB magnetic integrated model

  2. Typical Application Scenarios

     -- Light-duty lines: Electronic component flipping, label rotating, bottle cap tightening, miniature material sorting

     -- Heavy-duty stations: Large workpiece 90°/180° turnover, assembly line indexing, heavy rotary clamping fixtures

     -- General industries: Packaging, printing, food processing full automatic rotary positioning stations

Performance Comparison: CRB Vane VS MSQ Rack & Pinion Rotary Actuator

One Sentence 

     SummarySOLH CRB2 small light-duty and CRB1 heavy-duty vane-type rotary actuators adopt zero-backlash single/double vane drive with optional angle adjuster and magnetic switch variant CDRB, featuring fast low-inertia rotation from 0.05~24N·m torque, perfect for high-speed flipping, indexing and rotary clamping in electronics, packaging and heavy assembly automation lines.