CRA1 Series Rotary Table Cylinder | Rack & Pinionb Type

CRA1 Series Rack & Pinion Rotary Cylinder | Medium & Heavy Duty High Torque Swing Cylinder

Brand: SOLH by Richge Technology

1. Product Overview & Core Structural Features

     The SOLH CRA1 series is a professional medium and heavy-duty rack & pinion rotary cylinder built for high-torque oscillating motion. Featuring dual-piston rack-and-pinion transmission, optional adjustable air cushion, multiple mounting styles and diverse output shaft types, this cylinder covers bore sizes from φ30 to φ100. It perfectly adapts to 10–50kg heavy-load scenarios including workpiece flipping, industrial valve driving and heavy station indexing, serving as the mainstream high-rigidity rotary solution for heavy automated production lines.

  1.1 High-Rigidity Rack & Pinion Drive

     Adopting dual-piston synchronous rack-and-pinion transmission structure, the cylinder delivers powerful torque output and exceptional structural rigidity. The overall backlash is controlled within ≤1°, while the φ30 bore version achieves zero backlash. It ensures ultra-high repeat positioning accuracy and stable rotary motion under heavy load conditions.

  1.2 Super High Torque Output

     Optimized transmission structure realizes industry-leading torque performance. The maximum φ100 bore model outputs 108N·m torque at 0.5MPa air pressure, fully meeting high-torque demands for heavy workpiece rotation, large valve driving and heavy-duty equipment indexing.

  1.3 Optional Adjustable Air Cushion

     Z-type equipped with dual-end adjustable air buffer structure, which effectively absorbs inertial impact during high-frequency start-stop operation, reduces mechanical vibration and running noise, and protects equipment and workpieces while improving overall operation stability and service life.

  1.4 Diverse Mounting & Shaft Options

     • Mounting Styles: Basic (B), Foot (L), Flange (F) optional, supporting flexible installation for different equipment structures and space layouts.

     • Shaft Types: Single shaft (S), Dual shaft (W), Keyed shaft (Y) available, compatible with various load connection methods and anti-slip torque transmission requirements.

  1.5 Compact & Durable Structure

     Upgraded optimized structure reduces body width by 14% compared with traditional old models, saving installation space significantly. Designed with dual-side sensor grooves for flexible mounting of D-M9 series magnetic switches. Hard anodized cylinder body and high-wear-resistant sealing components guarantee long-term stable operation.

  1.6 Oil-Free & Long Service Life

     Standard oil-free operation design adapts to clean workshops and general industrial working conditions without additional lubrication maintenance. Premium wear-resistant seals and anti-corrosion cylinder body greatly extend continuous working life for frequent cyclic operation.

2. Complete Model Naming Rules & Order Examples

  1. Typical Model Examples: CRA1BS50-90Z, CDRA1BL80-180Z

  2. Standard Order Examples

     • Standard Non-Buffer Model: CRA1BS50-90 (φ50 bore, 90° swing, single shaft, basic type, no magnetic ring)

     • Heavy-Duty Buffer Model: CDRA1BL80-180Z (φ80 bore, 180° swing, dual shaft, foot mounting, magnetic ring & dual air cushion)

3. General Technical Parameters (20℃, 0.5MPa Standard Condition)

  3.1 Basic Specifications

     • Operation Mode: Double-acting rack & pinion drive

     • Working Fluid: Compressed air (oil-free operation)

     • Ambient Temperature: 0℃~60℃ (ice-free environment)

     • Working Pressure Range: 0.1~1.0MPa; Proof Pressure: 1.5MPa

     • Backlash: ≤1° (φ30 bore achieves zero backlash)

     • Swing Angle Tolerance: 0~+4°

     • Buffer Mode: Non-buffer / Dual-end adjustable air cushion (Z type)

     • Magnetic Switch: Compatible with D-M9 series, dual-side groove mounting

  3.2 Key Performance Parameter Table (@0.5MPa)

4. Core Configuration & Selection Guidelines

  4.1 Bore Size Selection (Based on Torque & Load)

     • φ30: 3.5N·m torque output, suitable for micro medium-load (≤10kg) applications such as small valve switching and miniature station indexing.

     • φ50: 9.3N·m torque output, ideal for light-medium load (10–20kg) workpiece 90° flipping and directional positioning.

     • φ63: 17.0N·m torque output, perfectly matching medium-load (20–30kg) heavy station steering and component rotation tasks.

     • φ80: 32.0N·m torque output, applicable for medium-heavy load (30–40kg) large tooling and fixture rotary positioning.

     • φ100: 108N·m super high torque output, dedicated to heavy-load (40–50kg) mechanical rotation and large industrial valve driving scenarios.

  4.2 Swing Angle Selection

     • 90° Standard Angle: Designed for right-angle flipping and vertical steering, widely used in workpiece loading/unloading and orthogonal station switching.

     • 180° Standard Angle: Suitable for half-cycle rotation and complete workpiece flipping, realizing bidirectional station positioning and reversing operation.

     • 100° / 190° Special Angle: Custom non-standard angles for special equipment and personalized station motion requirements.

  4.3 Buffer & Functional Configuration Selection

     • Z Air Cushion: Mandatory for high-frequency and heavy-duty working conditions, effectively eliminating end impact, stabilizing positioning accuracy and reducing operating noise.

     • CDRA1 Magnetic Ring Version: Built-in magnetic ring for D-M9 series switch installation, supporting real-time position signal feedback and automated PLC linkage control.

     • Shaft Type Matching: Single shaft (S) for general universal applications; dual shaft (W) for bidirectional synchronous driving; keyed shaft (Y) for high anti-torque and anti-slip connection demands.

5. Typical Application Scenarios

     • Heavy Workpiece Flipping: Reliable 90°/180° flipping and positioning for 10–50kg workpieces on machine tools and automated conveyor lines, with high rigidity and low backlash for precise repeat motion.

     • Industrial Valve Driving: Applied to automatic opening and closing and remote control of large-diameter pipeline valves such as butterfly valves and ball valves, providing stable high-torque driving force.

     • Heavy-Duty Automated Indexing: Used for 90°/180° precision indexing and fixed positioning of heavy rotary tables and tooling fixtures in assembly and detection stations.

     • Heavy Robotic Joints: Serves as rotary driving unit for heavy robot joints and end-effectors, meeting high-rigidity and high-load precise swing requirements.

     • Logistics & Packaging Equipment: Ideal for heavy material box and pallet steering, stacking and positioning, adapting to long-term high-frequency heavy-load cyclic working conditions.

6. 3-Step Quick Selection Guide

     1. Bore Confirmation: Calculate actual torque based on workpiece weight and rotation radius with a safety factor ≥2. Select φ30 for ≤10kg, φ50 for 10–20kg, φ63 for 20–30kg, φ80 for 30–40kg, φ100 for 40–50kg.

     2. Angle Confirmation: Choose 90° for right-angle steering/flipping, 180° for half-cycle reversing, and 100°/190° special angles for customized motion demands.

     3. Function Confirmation: Equip Z air cushion for high-frequency heavy-load operation; select CDRA1 magnetic version for signal feedback control; adopt Y keyed shaft for high-torque anti-slip connection.

One Sentence Summary

     The SOLH CRA1 series rack & pinion rotary cylinder delivers super high torque, ultra-low backlash and optional air buffer performance, providing high-rigidity, stable and durable precision rotary solutions for 10–50kg medium and heavy-duty industrial flipping, indexing and valve driving applications.