CM3 Series Short Stainless Steel Mini Cylinder | New-Generation Ultra-Compact Pneumatic Cylinder

Brand: SOLH by Richge Technology

1. Product Overview & Core Structural Features

     The SOLH CM3/CDM3 series is a new-generation short-type stainless steel mini cylinder optimized as an upgraded replacement for the traditional CM2 series. It covers bore sizes from φ20 to φ40, featuring a maximum overall length reduction of 29mm and 21% lighter weight compared with CM2. With ultra-compact body, full 304 stainless steel construction, oil-free operation and 4-way piping design, it perfectly adapts to space-limited, humid, weak acid & alkali, and clean working conditions. Widely used in food, medical, electronics and packaging industries for medium-load precision linear motion tasks.

  1.1 Standard & Premium Material Construction

     Fully compliant with JIS B 8356 interchangeable standards. The entire cylinder tube, piston rod and end covers adopt high-quality 304 stainless steel, delivering excellent rust-proof and corrosion-resistant performance. It stably operates in humid environments, weak acid/weak alkali working conditions and clean production workshops with strong environmental adaptability.

  1.2 Integrated Ultra-Compact Structure

     Adopting end cover thread locking and integrated cylinder tube structure, the overall size is greatly minimized. The innovative 4-way piping design (90° interval) provides ultra-high mounting freedom, solving the installation dilemma of narrow equipment space and realizing flexible layout of automated stations.

  1.3 Diversified Motion Types for Full Scenario Coverage

     • Double Acting (CM3B) : Dual-end air intake reciprocating motion, the most universal type for standard automated linear driving.

     • Single Acting (CM3S/T) : S = Spring return, T = Spring extend; automatic reset after power off for safety priority scenarios.

     • Double Rod (CM3W) : Dual-end rod output, synchronous stable movement and doubled effective stroke for special linkage mechanisms.

     • Non-Rotating Rod (CM3K) : Hexagonal anti-torsion piston rod, zero rotation during operation for high-precision positioning requirements.

  1.4 High-End Sealing & Long Service Life

     Equipped with low-friction bidirectional sealing ring and built-in oil storage groove, the cylinder features ultra-low starting pressure and stable operation. Standard oil-free lubrication design meets clean industry standards. The optimized wear-resistant structure ensures a service life of more than 8 million cycles, greatly reducing equipment maintenance frequency.

  1.5 Flexible Buffer & Induction Configuration

     Standard rubber buffer for basic shock absorption and noise reduction; optional A-type air buffer for high-speed frequent operation to eliminate end impact. CDM3 model comes with built-in magnetic ring, compatible with M9B/A93/Z73 series magnetic switches for real-time position signal feedback and PLC automatic linkage control; CM3 non-magnetic version for simple cyclic motion.

2. Complete Model Naming Rules & Order Examples

  1. Typical Model Structure: CDM3B25-100Z

  2. Standard Order Examples

     • Magnetic Double Acting Model: CDM3B32-50Z (φ32 bore, 50mm stroke, built-in magnetic ring, double acting)

     • Single Acting Spring Return Model: CDM3S20-25Z (φ20 bore, 25mm stroke, spring reset)

     • Non-Rotating Precision Model: CDM3K40-100Z (φ40 bore, 100mm stroke, hexagonal anti-torsion rod)

3. Core Technical Parameters (Standard Type)

4. 0.5MPa Theoretical Thrust & Tension Data

  4.1 Double Acting (CM3B) Thrust & Tension Table

  4.2 Single Acting (CM3S Spring Return) Performance Table

5. Mounting Types & Derivative Models

  5.1 Diversified Mounting Methods

     • B Basic Type: Direct installation via end cover threads, the most universal and cost-effective mounting method.

     • L Foot Mount: Fixed by axial foot bracket for stable horizontal installation.

     • F/G Flange Mount: Rod-side / rod-less side flange installation for vertical fixed positioning.

     • C/D Clevis Mount: Single clevis / double clevis connection for swinging and linkage scenarios.

     • E Trunnion Mount: Rod-less side trunnion structure for flexible swing motion.

  5.2 Core Derivative Series

     • CDM3B: Magnetic double acting type (standard mainstream model)

     • CDM3S/T: Magnetic single acting type (spring return / spring extend)

     • CDM3W: Magnetic double rod double acting type

     • CDM3K: Magnetic non-rotating hexagonal rod type

     • CDM3R: Direct ultra-thin mounting type for extreme space-limited stations

6. CM3 vs CM2 Selection Comparison

7. 3-Step Quick Selection Guide

     1. Bore Selection: Confirm bore size according to actual load weight, reserve no less than 50% safety margin. Prioritize CM3 series for medium-thrust, clean and corrosion-resistant working conditions.

     2. Stroke Selection: Actual working stroke plus 10~20mm safety margin. Follow standard stroke rules: double acting ≤300mm, single acting ≤100mm.

     3. Functional Configuration: Select B for conventional double acting reciprocating motion; S for single acting spring reset safety scenarios; K for high-precision anti-torsion positioning demands.

One Sentence Summary

     The SOLH CM3 new-generation short stainless steel mini cylinder features ultra-compact lightweight body, 304 full stainless corrosion resistance, oil-free long-life operation and diversified mounting methods, providing high-stability and space-saving medium-thrust linear motion solutions for food, medical, electronic and packaging clean automation equipment.