HRQ Series Rack & Pinion Rotary Actuator

Brand: SOLH by Richge Technology 

Product Positioning

     SOLH HRQ rotary cylinder adopts symmetrical dual-piston rack & pinion transmission structure, featuring ultra-smooth rotation, double output thrust and high repeat positioning accuracy. Swing angle continuously adjustable within 0~190°, widely deployed for rotary indexing, workpiece clamping, flipping and sorting stations on all automated production equipment.

Series Quick Selection Table

Universal Core Technical Specification Table

Output Torque & Allowable Load Data

  1. Theoretical Output Torque (0.5MPa Supply Air, Unit: N·m)

  2. Maximum Allowable Load Reference Table

Load Safety Selection Tip

     -- Actual working load must satisfy the safety formula below to avoid deformation and early failure:

     -- Actual Axial Load / Max Axial Load + Actual Radial Load / Max Radial Load + Actual Bending Moment / Max Bending Moment ≤ 15.

Structural Design Advantages

  1. Symmetric Rack & Pinion Drive

     -- Balanced dual piston delivers double output torque, stable rotation without shaking, excellent positioning accuracy and superior heavy-load bearing capacity compared with single-vane rotary cylinders.

  2. Multi-Directional Mounting Base

     -- HRQ10~HRQ200: tapped mounting holes distributed on both side faces;

     -- Micro HRQ2/3/7: mounting holes on bottom plane; flexible layout for compact equipment frames.

  3. Central Hollow Through Hole

     -- Hollow design on rotary table surface allows air tubing, sensor cables to pass through the center, neat internal piping layout without external line interference.

  4. Two Optional Buffer Solutions

     -- Mechanical limit screw buffer: Low cost, suitable for light load & low-speed intermittent operation

     -- Hydraulic shock absorber (-A suffix): Energy absorption capacity 3~5 times higher than screw buffer, effectively suppress impact vibration at high-speed heavy-load stop, guarantee precise positioning repeatability

  5. Universal Magnetic Switch Compatibility

     -- Standard pre-machined sensor grooves on both sides of cylinder body, compatible with D-M9BV, D-A93 and other general magnetic reed switches for rotary in-place signal feedback to PLC control system.

Complete Model Naming Rule

  1. Basic Model Example: HRQ30-A

     -- HRQ: Rotary rack & pinion cylinder series code

     -- 30: Frame size code, corresponding to fixed torque & load parameters

     -- -A: Suffix for built-in hydraulic shock absorber; no suffix = mechanical limit screw buffer

  2. Extended Suffix Definition

     -- -S: Stainless steel end cap for anti-corrosion humid environment

     -- Thread options: PT taper thread, G parallel thread, NPT American standard thread

Step-by-Step Selection Guide & Typical Applications

  1. Selection Priority Rules

     -- High speed, heavy workpiece load, high-precision stop positioning → HRQ□-A hydraulic buffer model

     -- Light load, low cycle speed, strict cost control → Standard HRQ screw buffer version

     -- Humid / slightly corrosive workshop environment → HRQ□-A(S) stainless steel end cap variant

     -- Load matching priority: Verify three core indicators simultaneously – output torque, bending moment, radial & axial allowable load

  2. Typical Industrial Application Scenarios

     -- Precision automatic assembly: Rotary part assembly, screw tightening stations

     -- Material sorting logistics: 90°/180° workpiece flipping, conveyor direction switching

     -- Pneumatic clamping fixtures: Rotary jig clamping & turnover mechanism

     -- Packaging machinery: Bottle rotation, automatic label sticking rotary stations

Performance Comparison: HRQ Rack-Pinion VS Vane Type Rotary Cylinder

One Sentence Summary

     SOLH HRQ dual piston rack & pinion rotary cylinder offers mechanical screw / hydraulic buffer optional variants with stainless steel corrosion resistant version, multi-direction mounting and central hollow table design, delivering stable high torque heavy-duty rotary positioning for automatic assembly, packaging and material sorting production lines.