DSNU Series Stainless Steel Mini Cylinder | ISO 6432 Standard Corrosion-Resistant Pneumatic Cylinder

Brand: SOLH by Richge Technology

1. Product Overview & Core Structural Features

     The SOLH DSNU series is a high-performance stainless steel mini pneumatic cylinder fully compliant with ISO 6432 and CETOP RP52P international standards. It covers a bore range from φ8 to φ63mm, featuring full SUS304 stainless steel cylinder tube and piston rod, self-adjusting pneumatic cushioning, superior corrosion resistance and ultra-long service life. Compatible with FESTO DSNU, SMC CM2 and Airtac MG series, it is widely used in food, pharmaceutical, electronic, packaging, textile and special automated scenarios with humid, weak acid and weak alkali working conditions.

  1.1 Global Standard & Full Interchangeability

     Manufactured in strict accordance with ISO 6432 and CETOP RP52P universal industrial standards, all mounting dimensions and interface specifications are globally unified. It achieves complete interchangeability with mainstream international brand mini cylinders, supporting zero-modification replacement and batch upgrading of standard automated equipment.

  1.2 Full Stainless Steel Corrosion-Resistant Structure

     Adopting premium SUS304 stainless steel cylinder tube and piston rod, matched with forged aluminum alloy end covers. The integrated material structure delivers excellent rust-proof, anti-corrosion and high-strength performance, perfectly adapting to harsh environments such as high humidity, dust, weak acid and weak alkali, far exceeding ordinary aluminum mini cylinders in durability.

  1.3 Roller Crimped Firm Structure

     Adopting professional roller crimping sealing technology for end cover connection with tight and firm overall structure, outstanding vibration resistance and stable operation. The streamlined round straight shape features simple structure and convenient daily disassembly and maintenance, reducing later operation costs.

  1.4 Diversified Motion & Short-Type Compact Options

     • DSNU Double Acting: Dual-end air intake reciprocating motion, the most universal standard type for conventional linear automation.

     • DSNU-…-P Single Acting (Push Out): Spring push-out structure, automatic extension after power failure for safety reset scenarios.

     • DSNU-…-R Single Acting (Pull Back): Spring return structure, automatic retraction after power failure for protective positioning mechanisms.

     • DSNU-…-PPV Self-Adjusting Cushion: Dual-end intelligent self-adjusting pneumatic buffer, no manual adjustment required, suitable for full pressure range high-speed operation.

     • DSNU-S Short Type: 35mm shorter in overall length and 40% narrower in width than standard type, customized for ultra-narrow space installation scenarios.

  1.5 Upgraded Cushion & Low-Friction Sealing System

     Standard equipped with elastic buffer pad (P) for basic noise and impact reduction; optional innovative PPV self-adjusting air cushion, adapting to 0.1~1.0MPa full pressure range with automatic adaptive buffering for high-speed frequent movement. Equipped with bidirectional low-friction composite seal and built-in oil storage groove, the cylinder features ultra-low starting pressure, stable oil-free operation and a service life of over 8 million cycles.

  1.6 Precision Magnetic Induction Configuration

     Optional built-in magnetic ring (A code) is compatible with FESTO SMT and SMC M9B series magnetic switches, realizing real-time accurate piston position detection and PLC signal linkage control, supporting automated cycle positioning and intelligent monitoring.

2. Complete Model Naming Rules & Order Examples

  1. Typical Model Structure: DSNU25-100-PPV-A-MQ

  2. Standard Order Examples

     • Double Acting PPV Cushion Magnetic Model: DSNU32-75-PPV-A-MQ (32mm bore, 75mm stroke, lateral flange mounting, magnetic equipped)

     • Short-Type Double Acting Elastic Cushion Model: DSNU-S20-50-P-A (20mm bore, 50mm stroke, ultra-compact short body, magnetic equipped)

     • Single Acting Spring Return Model: DSNU16-30-R-P-A (16mm bore, 30mm stroke, spring reset, magnetic equipped)

3. Core Technical Parameters (Standard Type)

4. 0.5MPa Theoretical Thrust & Tension Reference Chart (Single Rod)

  4.1 Double Acting (DSNU) Performance Data

  4.2 Single Acting (DSNU-R Spring Return) Performance Data

5. Mounting Forms & Derivative Models

  5.1 Diversified Universal Mounting Methods

     • MQ Lateral Port Flange: Standard flange fixed mounting with side air inlet, the most universal type for conventional automation layout

     • MA Axial Port Flange: Axial air inlet design, specially adapted for limited axial installation space

     • MH Direct Mount: End cover direct fixing structure, ultra-thin body for narrow space installation

     • KP Clamping Unit: Built-in locking function for arbitrary stroke position fixing and anti-offset positioning

     • FA/FB Front/Rear Flange: Front and rear flat flange fixing, fully compatible with ISO standard mounting accessories

  5.2 Core Derivative Series

     • DSNU Standard: Universal double acting type with elastic or air buffer for general automation

     • DSNU-S Short Type: Compact shortened body, exclusive for ultra-narrow space installation scenarios

     • DSNU-…-P/R Single Acting: Spring push-out / spring return single acting models for safety reset working conditions

     • DSNU-…-PPV Self-Adjusting Cushion: Intelligent adaptive buffering, preferred for high-speed frequent cyclic operation

6. DSNU vs CM2 vs MG Selection Comparison

7. 3-Step Quick Selection Guide

     1. Bore Selection: Select the appropriate bore size according to actual load weight, reserve more than 50% safety margin. Prioritize DSNU series for high-speed operation, corrosion resistance and international standard matching demands.

     2. Stroke Selection: Actual working stroke plus 10~20mm safety margin; follow standard stroke limits: double acting ≤500mm, single acting ≤150mm.

     3. Functional Configuration: Choose PPV self-adjusting air cushion for high-speed operation (>500mm/s); select DSNU-S short type for narrow installation space; match A magnetic ring + SMT/M9B switches for automatic position detection.

One Sentence Summary

     The SOLH DSNU ISO 6432 stainless steel mini cylinder features full corrosion-resistant stainless steel structure, self-adjusting intelligent buffering, oil-free long-life operation and diversified mounting options, serving as a high-standard universal mini cylinder solution for food, pharmaceutical, electronic and harsh-environment automation equipment.