RSH32-20DL: Heavy-Duty Stopper Cylinder, Flexible Stopping Expert with Built-in Shock Absorber

Product Positioning
The RSH32-20DL is a heavy-duty stopper cylinder from SMC’s RSH series, specifically designed for applications in automation equipment like conveyors where reliable stopping of workpiece pallets (carriers) is required. Its greatest feature is the built-in hydraulic shock absorber, enabling soft stopping of pallets to effectively reduce impact and noise, protect workpieces from damage, and enhance equipment stability. This series offers two bore sizes, 20mm and 32mm; this model is the 32mm specification.

Core Highlights: Built-in Shock Absorber, Flexible Stopping

• Built-in Hydraulic Shock Absorber for Flexible Stopping
  The core advantage of the RSH series lies in its built-in hydraulic shock absorber, which absorbs impact energy when stopping workpiece pallets, achieving smooth, gentle stops, significantly reducing noise and impact damage to workpieces.
  The absorber’s energy absorption capacity is adjustable to suit different application needs.
• Heavy-Duty Design, Robust and Durable
  Designed for heavy-duty applications with a 32mm bore, providing strong thrust and stability.
  Operating pressure range: 0 to 1.0 MPa; proof pressure: 1.5 MPa, suitable for a wide range of industrial environments.
  Cylinder barrel material: Aluminum alloy (hard anodized); piston rod: Carbon steel (hard chrome plated), robust and durable.
• Double-Acting Type with Roller Lever
  The “DL” in the model number represents Double Acting with Lever (roller lever).
  Roller material: Resin, durable and lightweight; rod end form: lever with built-in shock absorber.
  The orientation of the roller lever can be adjusted in 90° steps, facilitating on-site installation and alignment with pallets.
• Mounting and Ports
  Mounting style: Flange type, easy to install on the side of a conveyor line.
  Port size: Rc 1/8; thread types available: Rc, G, or NPT to suit different regional standards.
  Ambient/fluid temperature range: -10 to 60℃.
  Non-lube design simplifies maintenance and reduces operating costs.
• Optional Magnetic Switch for Position Detection
  The cylinder body has a built-in magnet, allowing easy installation of a magnetic switch (e.g., D-M9N, D-M9B, D-Y7BW) to detect the piston position (i.e., lever stop/return status) for automated control.
  *Note: The RSH32-20DL model itself does not come with a switch; users need to order one separately.*

Detailed Model Breakdown
Based on SMC naming conventions and multiple search results, the RSH32-20DL model number decodes as follows:

Specifications Overview

Structure and Features
According to SMC technical data, key features of the RSH series include:

Application Scenarios

• Workpiece Stopping and Positioning on Conveyors: Precisely and gently stopping moving pallets (carriers) at designated stations on automated production lines for operations like assembly, inspection, packaging, etc.
• Heavy-Duty Applications: Suitable for conveyors handling heavy workpieces due to its built-in shock absorber and robust construction.
• Applications Requiring Noise and Impact Reduction: The flexible stopping function of the built-in shock absorber significantly reduces impact noise associated with traditional stoppers, improving the work environment.

Summary: A Reliable Choice for Flexible Stopping on Conveyors
The RSH32-20DL heavy-duty stopper cylinder perfectly addresses the core need in automated conveying systems for “reliable stopping of heavy pallets with reduced impact” through its built-in hydraulic shock absorber enabling flexible stopping, robust heavy-duty design, and flexible mounting options. Its double-acting mode and optional magnetic switch allow easy integration into automation control systems. Choosing the RSH32-20DL means equipping your conveyor line with an efficient, stable, and easy-to-maintain “flexible stopping expert”—an ideal choice for enhancing equipment operational quality and protecting workpieces.