CDRQ2BS40-180CS-X6: Rack & Pinion Type Thin Rotary Actuator, Compact High-Precision Rotation Drive Expert

2026-03-05 By xyj2024 0

Product Positioning
The CDRQ2BS40-180CS-X6 is a rack and pinion type thin rotary actuator (semi-rotary actuator) from SMC’s CRQ2 series, featuring double-acting operation. This series is renowned for its ultra-compact, thin profile, high-precision rack and pinion transmission, and rich optional configurations. It encapsulates powerful rotational drive force within a flat, square body, specifically designed for applications in automation equipment where installation space is limited but precise positioning and swing control are required. It is widely used in electronics assembly, packaging machinery, medical devices, and general industrial automation.

Core Highlights: Thin & Compact, Rack & Pinion Drive, Stainless Steel Shaft/Key, Air Cushion

  • Thin & Compact Design, Significant Space Saving: The square body and flat structure significantly reduce axial height, allowing easy installation in confined spaces, particularly suitable for rotary stations with height restrictions within equipment.
    • Series Feature: The main body can be directly mounted and can also serve as a flange, simplifying mechanical structures.
  • Rack & Pinion Drive for Smooth Precision: The rack and pinion transmission mechanism enables smooth, stable rotary motion without stick-slip, with平稳 starts and stops.
    • The double piston design is backlash-free, ensuring high-precision angular positioning and repeatability.
  • Stainless Steel Shaft & Parallel Key (X6 Custom Specification): The suffix “-X6” denotes a custom specification: the shaft and parallel key are made of stainless steel.
    • This significantly enhances the corrosion resistance of the output shaft and key, making it suitable for humid environments, areas with chemical splashes, or applications requiring high cleanliness (e.g., food, pharmaceutical, semiconductor industries).
  • Air Cushion Design for Smooth Stopping: The “C” in the model number represents Air Cushion. Built-in cushioning effectively absorbs impact energy at the end of rotation, ensuring smooth stops, protecting the actuator and load, and reducing noise.
  • Angle Adjustment Function, ±5° Fine-Tuning: Standard angle adjustment mechanism allows ±5° fine-tuning at each rotation end, greatly enhancing on-site调试 flexibility and precision.
  • Single Shaft Output, High Torque Rating: Shaft type is single shaft, with an output torque of 5.3 N·m (for size 40), meeting medium-load rotational drive requirements.
    • Swing angle: 180°, adjustable rotation range 170°~190°.
  • Built-in Magnet for Intelligent Control: The body has a built-in magnet (indicated by “D” in the model), allowing easy selection of magnetic switches for non-contact detection and feedback of the piston position.
    • This model comes without standard magnetic switches (requires separate ordering, e.g., M9N, A93 series).
  • IP Grade & Wide Operating Condition Adaptability:
    • Operating pressure range: 0.1~1.0 MPa, reliable pressure resistance.
    • Non-lube type design, pre-lubricated at the factory, requiring no additional oil supply during long-term operation.
    • Ambient temperature: 0~60°C, suitable for most general industrial environments.

Model Number Breakdown
Based on SMC naming conventions and search results:

CodeMeaningExplanation
CWith MagnetBuilt-in magnet (distinguishes from non-magnet model “CRQ2…”)
DRQ2Series CodeSMC CRQ2 Series Rack & Pinion Type Thin Rotary Actuator
BTypeBasic Type
SShaft TypeSingle Shaft
40Size40 (corresponds to torque 5.3 N·m, equivalent bore size)
180Swing Angle180° (adjustable range 170°~190°)
CCushionAir Cushion
SShaft/Parallel Key MaterialStainless Steel Specification
-X6Custom SpecificationIndicates Shaft/Parallel Key Stainless Steel Spec (together with ‘S’)

Specifications Overview

ItemSpecificationSource
ModelCDRQ2BS40-180CS-X6
SeriesCRQ2SMC Rack & Pinion Thin Rotary Actuator
ActionDouble Acting
Size40
Swing Angle180° (Adjustable 170°~190°)
Torque5.3 N·m
Allowable Kinetic Energy0.4 J
Operating Pressure Range0.1 ~ 1.0 MPa
Min. Operating Pressure0.1 MPa
Ambient/Fluid Temperature0 ~ 60°C
Cushion TypeAir Cushion
Angle Adjustment Range±5° (per rotation end)
Port Size1/8″ (Rc1/8 or G1/8 optional)
Port Thread TypeRc (Standard)
Built-in MagnetYes
Auto SwitchNone standard (requires separate order)
Shaft/Parallel Key MaterialStainless Steel
LubricationNon-lube type
Cylinder Tube MaterialAluminum Alloy
Gear MaterialCarbon Steel / Stainless Steel (this model: shaft/key are SS)
End Cap MaterialAluminum Alloy

Structure and Features
According to SMC technical data, key features of the CRQ2 series include:

FeatureDescriptionSource
Thin & CompactMain body can be directly mounted, can also serve as flange, saving significant spaceSMC
Rack & Pinion DriveDouble piston design, backlash-free, smooth and precise rotationSMC
Angle Adjustment±5° fine-tuning at each rotation end, flexible on-site adjustmentSMC
Built-in CushionAir cushion type effectively absorbs impactSMC
Stainless Steel SpecShaft and parallel key in stainless steel, enhanced corrosion resistanceSMC
Auto Switch MountingTwo switches can be mounted on the same side (both sides possible), flexible detectionSMC
Flexible PipingPiping possible from one side, simplifying tubing layoutSMC

Applicable Scenarios

  • Workpiece Flipping: 90° or 180° flipping of workpieces on assembly lines.
  • Material Diverting: Changing flow direction of materials on conveyors.
  • Valve Control: Switching ball valves or butterfly valves.
  • Indexing Positioning: Indexing and positioning for multi-station rotary tables.
  • Packaging Machinery: Film roll changing, folding packaging boxes.
  • Electronics Assembly: Flipping PCBs, adjusting component orientation.
  • Medical Devices: Rotating test tubes, positioning reagent cards.
  • Corrosive Environments: The stainless steel shaft/key spec makes it suitable for humid or chemically splashed environments.

Summary: The Corrosion-Resistant Choice for Thin, High-Precision Rotary Drive
The CDRQ2BS40-180CS-X6 rotary actuator, with its three core technical advantages—space-saving ultra-thin compact design, smooth precision ensured by rack and pinion transmission, and enhanced corrosion resistance from the stainless steel shaft/key spec—perfectly addresses the core challenge in automation equipment: “requiring high-precision rotary drive in limited space with corrosion resistance.” Its 5.3N·m torque meets medium-load application needs. The air cushion ensures smooth stopping. The ±5° angle adjustment provides on-site debugging flexibility, and the built-in magnet预留 for intelligent control capability. Choosing the CDRQ2BS40-180CS-X6 means equipping your automation equipment with a compact, precise, and corrosion-resistant “rotary power arm”—the ideal choice for achieving efficient and reliable rotary control in electronics, packaging, medical, and corrosive environments.

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