Core Function: Lock-Out Positioning with Visual Safety Confirmation

The safety warning lock-out pull pin with clamping knob integrates two critical safety mechanisms into a single fastening solution. The lock-out function keeps the pin in a retracted position for hands-free adjustment, while the visual warning indicator confirms whether the pin is correctly engaged before operation.

This combination significantly reduces the risk of user error in safety-critical environments.

Hands-Free Adjustment with Lock-Out Function

By pulling and rotating the knob, the pin remains disengaged, allowing operators to reposition components freely using both hands. Once adjustment is complete, rotating the knob back re-engages the pin for accurate and repeatable positioning.

Built-In Visual Warning Indicator

A colored center disc and outer warning ring provide immediate visual feedback when the pin is not fully seated. If engagement is incomplete, the indicator remains visible; once properly locked, it retracts automatically, confirming safe operation without additional checks.

Manual Clamping for Enhanced Stability

After positioning and engagement, the clamping knob allows hand tightening to apply additional holding force. This clamping action improves resistance to vibration and dynamic loads, ensuring stable alignment during operation without tools.

Key Features

• Lock-out mechanism for hands-free adjustment
• Visual warning indicator to confirm proper locking
• Spring-loaded pin for repeatable positioning
• Manual clamping function for added stability
• Designed for high-safety and high-frequency use
• ROHS compliant and manufactured in Taiwan under ISO 9001 quality control

Typical Applications

• Equipment requiring safe repositioning with minimal risk of user error
• Medical, training, and laboratory devices with strict safety demands
• Automation modules and precision fixtures
• Safety covers and guarded machinery systems
• Production lines and modular equipment requiring foolproof locking

OEM / ODM Support for High-Safety Locking Solutions

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