TWQ Series Fixed Height Stopper Cylinder | Compact Light & Medium Duty Stop Cylinder

Brand: SOLH by Richge Technology 

1. Product Overview & Core Structural Features

     The SOLH TWQ series is a fixed mounting height stopper cylinder optimized for light and medium-duty automated conveyor lines. It features a compact body structure, four optional rod end types, hydraulic buffer availability and optional mechanical self-locking function. Suitable for 10–150kg pallet and tooling stopping, station limiting and transfer positioning, the TWQ cylinder serves as a high-cost-performance standard solution for light and medium-load automation scenarios.

  1.1 Fixed Mounting Height Design

     The integrated fixed-height body ensures fast and straightforward installation with high repetitive positioning accuracy. It perfectly matches standardized conveyor station layouts, eliminating height adjustment procedures and improving on-site deployment efficiency.

  1.2 Four Versatile Rod End Types (Core Advantage)

     • B Flat Rod Type: Anti-rotation flat piston rod structure delivers stable stopping performance and strong eccentric load resistance, maintaining accurate positioning under lateral force conditions.

     • C Round Rod Type: Thickened solid round piston rod with enhanced impact resistance, specially designed for working conditions with large lateral force and precise tooling positioning requirements.

     • R Roller Lever Type: Lever + rolling contact structure minimizes stopping impact with smooth rolling motion, ideal for high-speed continuous conveyor line operation.

     • K Adjustable Buffer Lever Type: Built-in adjustable hydraulic buffer allows free damping resistance adjustment to adapt to workpieces of different weights and conveying speeds, achieving optimal soft stopping effect for variable working conditions.

  1.3 Optional Self-Locking Function (R/K Version)

     Roller and buffer lever versions support optional mechanical self-locking structure. After workpiece impact stopping, the cylinder automatically locks the lever arm to prevent rebound and reverse pushing, effectively eliminating workpiece displacement and greatly improving conveyor station stability and consistency.

  1.4 Compact Size & Durable Structure

     The cylinder body adopts hard anodizing treatment while the piston rod features hard chrome plating, providing excellent wear resistance and impact resistance. Standard oil-free operation adapts to clean production environments and welding splash-proof scenarios. Reserved sensor grooves on four sides allow magnetic switch installation without structural interference for flexible layout.

  1.5 Diverse Operation Modes

     Optional double-acting standard mode and single-acting (spring extend / spring retract) modes cover automatic cycling, power-off safety protection and temporary stopping demands, matching various industrial control logics.

2. Complete Model Naming Rules & Order Examples

  1. Typical Model Examples: TWQ32-20SB, TWQ50-30RK-F

  2. Standard Order Examples

     • Standard Flat Rod Model: TWQ32-20SB (φ32 bore, 20mm stroke, flat column rod end, rubber buffer)

     • Self-Locking Adjustable Buffer Model: TWQ50-30RK-F (φ50 bore, 30mm stroke, adjustable hydraulic buffer lever, with self-locking function)

3. General Technical Parameters (20℃, 0.5MPa Standard Condition)

  3.1 Basic Specifications

     • Operation Mode: Double-acting, single-acting (spring extend / spring retract)

     • Working Pressure Range: 0.05~1.0MPa; Proof Pressure: 1.5MPa

     • Ambient Temperature: -10℃~60℃ (ice-free environment)

     • Buffer Configuration: S = Dual-end rubber buffer; K = Adjustable hydraulic buffer + dual-end rubber buffer

     • Lubrication Mode: Oil-free operation

     • Installation Method: Standard fixed-height flange mounting

  3.2 Standard Bore & Stroke Combination

  3.3 Theoretical Stopping Force (Unit: N @0.5MPa)

  3.4 Product Weight (Unit: kg @ Standard Stroke)

4. Core Configuration & Selection Guidelines

  4.1 Rod End Type Selection

     • B Flat Column Type (Recommended): Anti-rotation and high stability design, suitable for light loads (10–80kg) and low-speed operation (≤0.3m/s) without obvious lateral impact.

     • C Round Column Type: Thickened rod structure with strong impact resistance, ideal for tooling positioning scenarios with large lateral force.

     • R Roller Lever Type: Low-impact and smooth rolling performance, perfect for high-speed (≤0.5m/s) and light-medium load (30–100kg) conveyor lines.

     • K Adjustable Buffer Lever Type: Adaptable damping and superior impact resistance, designed for medium loads (50–150kg), high-frequency start-stop and unstable speed working conditions.

  4.2 Self-Locking Function Selection

     • F Self-Locking Type (Recommended for Auto Lines): Available only for R/K lever versions. Prevents workpiece rebound and station displacement, greatly improving continuous operation stability of automated lines.

     • Non-Locking Type: Cost-effective solution for scenarios with minor reverse impact and manual reset operation, not recommended for fully automatic production lines.

  4.3 Operation Mode Selection

     • Double-Acting: Maximum stopping force with bidirectional controllable action, suitable for high-frequency and fully automatic control scenarios.

     • Single-Acting (Spring Extend): Automatically extends to stop workpieces after power failure, prioritizing safety for dangerous stations and power-off protection applications.

     • Single-Acting (Spring Retract): Stops with air supply and releases automatically when power off, adapted for normally open conveyor lines and temporary stopping tasks.

5. Typical Application Scenarios

     • Light & Medium-Duty Conveyor Lines: Applied to stopping, limiting and transfer positioning of 10–150kg pallets and tooling plates in electronics, home appliance and food industries.

     • High-Speed Material Handling Lines: The R/K lever structure ensures smooth zero-impact stopping for light-load high-speed (≤0.5m/s) workpieces on roller and belt conveyors.

     • Automated Equipment Stations: Compact body for easy installation, widely used for machine tool loading/unloading limiting, assembly station positioning and inspection station stopping.

     • Packaging & Logistics Lines: Ideal for carton and material box stopping, diverging station blocking and stacking positioning, featuring high cost performance and low maintenance.

6. TWQ vs TWH/TWM Series Quick Comparison

7. 3-Step Quick Selection Guide

     1. Bore Size Selection: Select bore according to workpiece weight with 200% safety factor (theoretical stopping force ≥ actual load × 2). Choose φ25/φ32 for load below 80kg; choose φ40/φ50 for 80–150kg load.

     2. Rod End & Buffer Selection: Adopt B flat rod + S rubber buffer for light-load low-speed scenarios; select R roller type for high-speed light-load lines; choose K adjustable buffer type for medium-load and high-frequency working conditions.

     3. Functional Configuration Selection: Equip F self-locking for automatic production lines; select double-acting mode for high-frequency cyclic control; adopt single-acting spring extend mode for safety-priority and power-off protection stations.

One Sentence Summary

     The SOLH TWQ series fixed-height stopper cylinder features compact design, multi rod-end compatibility and optional self-locking & adjustable buffer functions, providing high-cost-performance, stable and flexible stopping solutions for 10–150kg light and medium-duty automated conveyor systems.