3M DBI-SALA 7241420 Removable Cable Trolley (Horizontal Lifeline)

The 3M DBI-SALA 7241420 is a removable cable trolley for horizontal lifeline (HLL) systems. It connects a worker’s harness to the lifeline cable and rolls along the span, passing intermediate anchor plates hands-free, so the worker stays continuously tied off while moving the full length of the line.

Product overview

The trolley is the worker’s connection point on a horizontal lifeline. Because the 7241420 is removable, it can be attached to or taken off the cable at a designated point, and it travels smoothly past intermediate brackets without the worker disconnecting. This keeps fall protection continuous along the whole span.

Key features and benefits

• Continuous connection: rolls along the lifeline so the worker stays tied off while moving.
• Pass-through: crosses intermediate anchor plates hands-free.
• Removable: attaches to and detaches from the cable at a designated point.
• Smooth travel: low-friction movement reduces effort along the span.
• Genuine 3M DBI-SALA: matched to the DBI-SALA horizontal lifeline system.

Main industries and applications

• Construction & steel erection: moving along horizontal spans at height.
• Oil, gas & petrochemical: pipe racks and process structures.
• Transport & logistics: loading bays and vehicle-top access.
• Utilities & infrastructure: bridges, towers and walkways.

Technical specifications

Why buy from Techmaster Electronics

Techmaster Electronics is an authorised supplier of 3M fall-protection equipment in Vietnam. We supply genuine 3M DBI-SALA lifeline components, advise on designing a compliant horizontal lifeline, and provide dependable after-sales support. Contact Techmaster for a free consultation and a quotation.

Frequently asked questions

What is the 3M DBI-SALA 7241420 used for?

It is the trolley that connects a worker’s harness to a horizontal lifeline cable and rolls along the span, keeping the worker continuously protected.

Does it pass intermediate anchors?

Yes. The trolley is designed to cross intermediate anchor plates without the worker disconnecting from the line.

Is it a complete lifeline?

No. It is the connection component of an HLL. The cable, anchors, end fittings and absorber must be specified and installed together.

Does it need professional installation?

Yes. Horizontal lifelines must be designed and installed by competent persons and inspected regularly.