Stopper 25 SX Pneumatic Stopper 03084034-07 ASM SMT Machine Spare Part

ASM Stopper 25 SX Pneumatic Stopper (Part Number: 03084034-07) Full Introduction

I. Basic Product Information

Brand: ASM Assembly Systems (Siemens original parts for pick-and-place machines and SMT automation)

Model Number: Stopper 25 SX pneumatisch kpl.

pneumatisch: German for pneumatic; kpl. = komplett, complete assembly

25: Compatible with standard 25mm wide conveyor rails; SX is a compact, horizontally mounted model

Part Code: 03084034-07, original equipment part for ASM pick-and-place machine production lines

Structure and Appearance: One-piece milled aluminum alloy valve body, dual-way pneumatic quick-connect connector (bent blue cap quick-connect air hose interface), built-in hydraulic buffer green damping head, integrated linear guide rail structure at the bottom.

II. Working Principle
* **Blocking Standby State:** Airflow through one side causes the internal piston to extend, popping out a green buffer block to block the SMT carrier/PCB tray from moving forward. The buffer damping head absorbs the impact force of the tray impact, preventing workpiece bounce and displacement.
* **Release State:** Compressed air flows through the other side, causing the piston to retract the block into the valve body. The conveyor track is fully unobstructed, allowing the carrier to flow smoothly to the next station.
* **Buffering and Noise Reduction Logic:** An adjustable hydraulic buffer structure is built-in. Upon tray impact, the damping slowly releases pressure and decelerates, achieving a soft stop, significantly reducing impact noise and protecting precision PCB components.
* **Dual-Action Pneumatic Structure:** Independent control of extension/retraction via dual airflow paths, without a built-in return spring, results in faster response, higher load positioning accuracy, and suitability for high-speed SMT production lines.

III. Core Features

Compact Horizontal Layout: Ultra-thin body, compatible with ASM standard 25mm double-speed chain/rail conveyor lines

Integrated Buffer: Built-in hydraulic buffer, no need for additional buffers, stable positioning without rebound

All-Aluminum Alloy Valve Body: Wear-resistant and rust-proof, not easily deformed under long-term production line conditions

Standard Quick-Connect Air Port: Universal 4/6mm pneumatic hose, convenient disassembly and maintenance

High Repeatability: ±0.02mm, meeting the precision positioning requirements of chip and PCB placement

IV. Application Scenarios
Designed specifically for ASM series SMT placement machines and PCB conveyor lines, used for:

Carrier tray segmentation blocking, precise station positioning

Conveyor line diversion, temporary storage, individual station stopping

Ultra-thin PCB, precision electronic substrate buffering and limiting

Stopper 25 SX Pneumatic Stopper 03084034-07 ASM SMT Machine Spare Part