RM Series Magnetic Coupling Rodless Cylinder | Airtac Compact Guided Long Stroke Type

Brand: SOLH by Richge Technology

RMT
RMTL

Product Overview

     The SOLH RM series is a mainstream Airtac-style magnetic coupling rodless cylinder designed for compact, long-stroke and guided linear driving demands. Adopting non-contact magnetic synchronous transmission between the internal piston and external slide table, the fully enclosed structure achieves complete zero leakage and dust-free operation. Covering four core models including basic type and guided rod type, the bore size ranges from φ10 to φ40mm with a maximum stroke of 2000mm. Featuring built-in guiding, wide temperature adaptability and high cost performance, it is perfectly suited for long-stroke linear transfer and clean-space automation scenarios, serving as the preferred domestic alternative to SMC CY1/CY3 series.

Core Model Classification & Structural Features

1. Complete RM Family Model Classification

• RMS Basic Type: Ultra-minimalist structure without built-in guiding system. Requires external support brackets and linear guide rails for installation. It features the lowest cost and is ideal for budget-sensitive projects with reserved guiding structures.

• RMT Standard Guided Type: Equipped with dual guide rods and sliding bearings for integrated guiding function. It can bear lateral and eccentric loads without external guide rails, enabling simple and fast installation for conventional working conditions.

• RMTL Precision Guided Type: Adopts extended high-precision guide rods and high-rigidity bearings to enhance linear motion accuracy. The repeat positioning accuracy reaches ±0.1mm, meeting high-precision stroke positioning and micro-distance transfer requirements.

• RMH High-Load Slide Type: Optimized with reinforced slide rails and high-strength guide rod structure, featuring excellent load capacity and anti-deflection performance. It can be directly used as a standalone sliding table for heavy-load and high-stability operation scenarios.

2. Core Structural Advantages

• Magnetic Coupling Drive & Zero-Leakage Clean Performance: Built-in high-strength magnetic array realizes non-mechanical synchronous transmission. The fully enclosed cylinder barrel completely isolates internal air circuits from the external environment, achieving zero air leakage and dust-free operation. It fully complies with hygienic standards for food, electronics and medical clean workshop applications.

• Rodless Compact Design & Space Saving: No piston rod extension structure reduces installation space by 50% compared with traditional tie-rod cylinders. It maintains stable linear operation without bending even under maximum 2000mm long-stroke conditions, perfectly supporting compact equipment design.

• Isolated Dustproof Structure & Extended Service Life: The piston chamber and slide table are completely isolated to prevent external dust, dirt and impurities from entering the cylinder interior. The optimized wear-resistant ring and dustproof ring combination effectively reduces friction loss and prolongs overall service life.

• Integrated Dual-Guide Rod Design (RMT/RMTL/RMH): Self-contained guiding structure eliminates the need for external slide rails. It effectively resists lateral force and eccentric load interference, ensuring smooth and stable reciprocating motion with higher installation efficiency.

• Multi-Buffer Configuration for Stable Operation: Standard fixed dual-end rubber buffers absorb operating impact and reduce running noise. Optional adjustable buffers and hydraulic buffers support stable operation at a maximum speed of 500mm/s, avoiding rigid impact during high-speed cyclic movement.

Complete Model Coding Rule

1.Model Examples: RMT20-500 | RMS16-300-S

2.Standard Order Reference Examples

• RMS16-300: 16mm bore, 300mm stroke, basic non-guided type without magnetic switch

• RMT20-500-S: 20mm bore, 500mm stroke, standard guided type with magnetic accessory

• RMTL25-800: 25mm bore, 800mm stroke, high-precision guided type

Core Technical Specifications (20℃ Standard Condition)

1. Basic General Specifications

• Operation Mode: Double-acting magnetic coupling non-contact synchronous transmission

• Working Fluid: Filtered compressed air (40μm filtration, oil-free operation available)

• Ambient Temperature: -20℃~70℃ (ultra-wide temperature industrial grade)

• Working Pressure Range: 0.15~0.7MPa; Proof Pressure: 1.0MPa

• Standard Operating Speed: 50~500mm/s

• Buffer Mode: Standard dual-end fixed rubber buffer; optional adjustable buffer / hydraulic buffer

• Magnetic Holding Force: 55~1400N (gradually increases with bore size)

2. Key Performance Parameter Chart (@0.5MPa)

Core Configuration & Selection Guidelines

1. Bore Size Selection by Load & Thrust

• φ10~φ16 (Micro Light Duty): Suitable for loads ≤2kg, dedicated to short-stroke precision component transfer and micro-positioning operations in miniature electronic automation equipment.

• φ20~φ25 (General Light Duty): Matched with 4~6kg light load, ideal for conventional long-stroke pushing and pulling operations (≤1000mm) in general automated production lines.

• φ32~φ40 (Medium Duty): Applicable for 10~16kg medium load scenarios, perfectly adapted to long-stroke material handling and high-frequency cyclic working conditions in packaging and logistics automation equipment.

2. Model & Guiding System Selection

• RMS Basic Type: Ultra-low cost solution without built-in guiding. Suitable for budget-sensitive projects and equipment with pre-installed external linear guide rails, requiring dual-end bracket fixation.

• RMT Standard Guided Type: All-in-one dual guide rod design with built-in bearing guiding. It can resist conventional lateral loads without external guiding accessories, featuring simple installation and wide adaptability for standard working conditions.

• RMTL Precision Guided Type: Extended high-precision guide rods optimize linear motion stability, achieving repeat positioning accuracy up to ±0.1mm. The best choice for precision positioning, precise assembly and high-linear-demand scenarios.

• RMH High-Load Slide Type: Reinforced slide rail and high-strength guide rod structure greatly improve anti-deflection capability and load capacity. It can replace independent sliding tables to complete heavy-load long-stroke driving tasks.

3. Environment & Functional Configuration Selection

• Clean Environment Application: Zero-leakage and dust-free non-contact magnetic transmission avoids secondary pollution. RMT and RMTL self-guided models are preferred for long-term stable operation in food, medical and electronic clean workshops.

• High-Speed Working Condition Upgrade: Equip with external hydraulic buffers to eliminate end impact, stably supporting continuous high-speed operation up to 500mm/s for high-frequency cyclic production lines.

• Precision Position Feedback: Add -S magnetic equipped configuration, compatible with D-M9 series magnetic switches, realizing multi-point stroke positioning and real-time electrical signal feedback for automated linkage control.

Typical Industrial Application Scenarios

• Clean Room Electronic Material Transfer: Dust-free and zero-pollution magnetic coupling structure is widely used for long-distance material handling in semiconductor and LCD dust-free workshops, effectively protecting clean production environments.

• Food & Pharmaceutical Packaging Line Displacement: Self-guided integrated design simplifies installation and daily maintenance, perfectly meeting long-stroke workpiece pushing and pulling demands of light and medium-duty packaging equipment with hygienic and reliable performance.

• Automated Equipment Door & Shield Control: Rodless compact structure saves 50% installation space, suitable for stable opening and closing driving of long-stroke equipment protective doors, dust shields and safety covers.

• Long-Stroke Assembly Line Precision Positioning: RMTL high-precision guided model ensures excellent linearity and repeat positioning accuracy, meeting 1~2m ultra-long-distance precise positioning and cyclic conveying requirements of production lines.

• Compact Equipment Renovation & Space Saving: It serves as an ideal replacement for traditional tie-rod cylinders in long-stroke (>500mm) scenarios, greatly optimizing equipment layout and realizing compact automated equipment design.

RM Series vs CY1 / CY3 Series Core Parameter Comparison

Three-Step Quick Selection Guide

1. Bore Size Confirmation: Calculate required thrust based on actual load weight with a safety factor ≥2. Recommended rules: ≤2kg → φ16; 4~6kg → φ25; 10~16kg → φ40.

2. Model Type Confirmation: Choose RMS for ultra-low budget; RMT for standard general working conditions; RMTL for high-precision positioning demands; RMH for heavy-load and anti-deflection scenarios.

3. Stroke Specification Confirmation: Select standard 50~1000mm stroke for conventional use; optional extended stroke up to 2000mm for medium-long distance driving demands.

One Sentence Summary

     SOLH RM series Airtac-style magnetic coupling rodless cylinder integrates diversified self-guided structures, ultra-wide temperature adaptability and zero-leakage clean performance, serving as the high cost-performance domestic long-stroke linear driving solution for medium-budget automated equipment.