Core Function: Visual Safety Feedback with Secure Positioning

The safety warning spring pull pin with clamping knob integrates a visual indicator into the standard pull pin mechanism. If the pin is not fully engaged, the warning indicator remains visible, clearly signaling improper locking before operation begins.

This visual feedback helps prevent unintended movement, misuse, or operation under unsafe conditions—especially in environments where operators may not physically verify pin engagement every time.

Built-In Visual Warning Indicator

A high-visibility indicator ring and center cap are automatically actuated by the pin position. When engagement is incomplete, the indicator protrudes to alert the user. Once the pin is correctly seated, the indicator retracts, confirming safe locking without additional checks.

Manual Clamping for Added Stability

In addition to visual safety feedback, the clamping knob allows hand-tightened fixation after positioning. This clamping action improves resistance to vibration and dynamic loads, helping maintain stable alignment during operation without tools.

Key Features

• Visual warning indicator to confirm proper pin engagement
• Spring-loaded pull pin for repeatable positioning
• Manual clamping via knob for added holding force
• Tool-free operation for quick and intuitive adjustment
• Designed for safety-critical and user-facing applications
• ROHS compliant and manufactured in Taiwan under ISO 9001 quality control

Typical Applications

• Medical and rehabilitation devices requiring visual lock confirmation
• Fitness machines and training systems with foolproof adjustment
• Safety guards, covers, and access panels on machinery
• Automation modules with frequent positioning and accuracy demands
• Equipment where user awareness and operational safety are critical

OEM / ODM Support for Safety Indexing Solutions

UJEN offers OEM and ODM support for safety warning spring pull pins with clamping knob, including customization of indicator color, pin size, stroke, clamping force, and knob design. Our engineering team works closely with customers to meet safety, usability, and regulatory requirements across global markets.