CM2 / CDM2 Series Stainless Steel Mini Cylinder (Double / Single Acting)

Brand: SOLH by Richge Technology 

Product Overview

     SOLH CM2 / CDM2 are JIS B 8356 standard round stainless steel cylinders, bore size φ20/25/32/40mm. Performance positioned between micro mini cylinders and standard cylinders. Core advantages: corrosion resistance, long service life, diversified mounting options, compact medium thrust output. Widely adopted for food, pharmaceutical, electronics, packaging and clean automation medium-load stations.

Core Structure & Design Features

   1. Standard: Complies with JIS B 8356, round body with universal mounting dimensions.

   2. Material: 304 stainless steel barrel, piston rod and end caps, rust-proof, resistant to humid, weak acid, weak alkali and clean environments.

   3. Structure: End caps locked by threads, straight round outline, high mechanical strength and easy maintenance.

   4. Operation Variants

     -- CM2B Double Acting: Air supply on both ends, most popular standard model

     -- CM2S / CM2T Single Acting: S=Spring return; T=Spring extend, automatic reset after air cut-off

     -- CM2W Double Rod: Rod extended on both sides, synchronous movement, effective travel doubled

     -- CM2K Non-Rotating Rod: Hexagonal piston rod, anti-twist for precise positioning

   5. Cushion: Standard rubber cushion; air cushion (suffix A) optional to reduce impact noise under high speed.

   6. Sealing: Low-friction bidirectional seal with oil reservoir groove. Low starting pressure, oil-free operation, service life ≥8 million cycles.

   7. Position Detection: CDM2 version equipped with built-in magnetic ring, compatible with M9B/A93/Z73 magnetic switches for piston position feedback.

Complete Model Coding Rule

   1. Model Example：CDM2B20-100A-B

   2. Standard Order Reference Examples

     -- CDM2B25-50-B：Bore25, stroke50, double acting, built-in magnet, rubber cushion

     -- CDM2S32-75-B：Bore32, stroke75, single acting spring return

     -- CDM2K40-100-B：Bore40, stroke100, non-rotating hexagonal piston rod

Universal Core Technical Specifications

Theoretical Thrust & Pull Force @0.5MPa (Single Rod, Unit:N)

   1. Double Acting CM2B

   2. Single Acting CM2S (Spring Return @0.5MPa)

Mounting Forms & Derivative Models

   1. Mounting Options

     -- B Basic Type: Direct installation via end cap threads (most common)

     -- L Foot Mount: Axial foot bracket fixing

     -- F/G Flange: Rod-side flange /head-side flange

     -- C/D Clevis: Single clevis /double clevis

     -- E Trunnion: Head-side trunnion for swing motion

   3. Main Derivative Series

     -- CDM2B: Standard double acting with built-in magnet

     -- CDM2S/T: Single acting spring return /spring extend

     -- CDM2W: Double rod double acting

     -- CDM2K: Non-rotating hexagonal piston rod

     -- CDM2R: Slim direct mount version for limited axial space

3-Step Fast Selection Guide

   1. Bore selection: Calculate required thrust & horizontal load, reserve ≥50% safety margin; select CM2 preferentially for medium-load applications.

   2. Stroke confirmation: Add 10~20mm extra travel margin; Max stroke: double acting ≤300mm, single acting ≤100mm.

   3. Configuration matching

     -- Operation: Double acting → B; single acting spring return → S; anti-twist requirement → K

     -- Cushion: Add suffix A (air cushion) for high-speed reciprocating motion

     -- Position feedback: Choose CDM2 magnet equipped model, match M9B/A93 magnetic switches

One Sentence Summary

     SOLH CM2/CDM2 JIS standard stainless steel round pneumatic cylinder is fully interchangeable with imported CM2 series, available in double acting, single acting, double rod and non-rotating rod variants, multiple mounting options, ideal medium-thrust linear actuator for food, medical, electronics and packaging clean automation equipment.