INDUSTRY COMPONENT

Locking Bolt / Latch

A mechanical locking bolt or latch used in interlock mechanisms to secure machine guards and prevent access during hazardous operations.

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Component Specifications

Definition
A precision-engineered mechanical component designed to physically lock machine guards, doors, or access panels in closed positions as part of safety interlock systems. It prevents unauthorized or accidental opening during machine operation cycles, ensuring operator safety by maintaining isolation from moving parts, electrical hazards, or process areas.
Working Principle
Operates through mechanical engagement where a bolt or latch extends into a receiver or strike plate when activated, creating a positive lock. Typically integrated with electrical or pneumatic systems that monitor lock status, preventing machine startup unless fully engaged and allowing release only when safe conditions are met.
Materials
High-strength alloy steel (AISI 4140/4340), stainless steel (316/304), or engineered polymers (PEEK, reinforced nylon) depending on application requirements. Surface treatments include zinc plating, black oxide coating, or passivation for corrosion resistance.
Technical Parameters
  • IP Rating IP65/IP67
  • Locking Force 200-5000 N
  • Response Time <100 ms
  • Stroke Length 5-50 mm
  • Actuation Type Solenoid, pneumatic, mechanical
  • Electrical Rating 24V DC, 5A max
  • Operating Temperature -20°C to +120°C
Standards
ISO 14119, ISO 13849-1, DIN EN 1088, ANSI B11.19

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Locking Bolt / Latch.

safety interlock bolt machine guard latch locking mechanism industrial safety component interlock system safety bolt specifications Locking Bolt / Latch Locking Bolt / Latch in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Interlock Mechanism

A safety and control device that prevents simultaneous operation of incompatible functions in a Rapid Transfer Port (RTP).

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Engineering Analysis

Risks & Mitigation
  • Mechanical failure leading to unintended access
  • Corrosion compromising locking function
  • Electrical failure preventing proper engagement
  • Installation errors reducing effectiveness
FMEA Triads
Trigger: Wear or fatigue in locking mechanism
Failure: Bolt fails to extend fully or retract properly
Mitigation: Regular maintenance inspections, use of wear-resistant materials, and redundant position sensors
Trigger: Environmental contamination
Failure: Corrosion or debris accumulation prevents smooth operation
Mitigation: Proper sealing (IP65+), regular cleaning protocols, and corrosion-resistant materials
Trigger: Electrical system fault
Failure: Solenoid or sensor failure prevents proper locking/unlocking
Mitigation: Dual-channel safety circuits, regular electrical testing, and fail-safe design

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.1 mm for critical engagement dimensions, position repeatability within 0.5 mm
Test Method
Functional testing per ISO 14119 including cycle testing (minimum 1 million cycles), force measurement, environmental testing, and electrical safety verification

Buyer Feedback

★★★★☆ 4.5 / 5.0 (35 reviews)

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Locking Bolt / Latch arrived with full certification."

"Great transparency on the Locking Bolt / Latch components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Locking Bolt / Latch we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

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Frequently Asked Questions

What is the primary function of a locking bolt in interlock systems?

To physically prevent access to hazardous machine areas during operation by securing guards or doors, ensuring safety compliance and preventing accidents.

How do locking bolts integrate with machine control systems?

They connect to safety relays or PLCs through position sensors, providing feedback that prevents machine startup unless properly engaged and allows controlled release during safe conditions.

What materials are best for corrosive environments?

Stainless steel (316 grade) with appropriate surface treatments provides optimal corrosion resistance in harsh industrial environments.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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