IBL – Interlock Blocking

Enhance your machine safety effortlessly without electrical modifications. The Fortress Osbourn IBL (Interlock Blocking) is a mechanical safety lock designed to prevent a gate or safety guard from closing before a maintenance key is returned. This ensures that unexpected machine startups are avoided and provides a secure working environment within guarded areas.

Why choose Osbourn IBL?

• Fully mechanical operation – no wiring, programming, or electricity required.
• Keeps gates locked open while the safety key is held by personnel.
• Suitable for both sliding and hinged gates – models IBL-S and IBL-H.
• Padlock-compatible for multi-person lockout scenarios.
• Made from 316 stainless steel for corrosion resistance and washdown durability.
• Long service life – rated for up to 1,000,000 operations.
• Easy installation requiring only two mounting screws.

Typical applications

• Robotic cells and automation lines
• Food and beverage production facilities
• Battery, chemical, and pharmaceutical industries
• Metalworking and packaging machinery

Secure your workforce without costly electrical changes – Osbourn IBL offers a fast and cost-effective way to improve machine safety.