ST10HTK Aluminum Beam Trolley Anchor
The ST10HTK beam trolley is the trailing anchor to choose when a worker has to cover real distance under overhead steel. Rugged, fast-moving aluminum rollers glide smoothly along the beam flange, carrying the anchor point with the user for hands-free horizontal mobility - more trailing mobility means more productivity at the same level of safety. The centered D-ring keeps the connecting device tracking directly above the worker.
Jaw adjustment to variable positions fits flange widths from 3 to 10 inches up to 1 inch thick, and installation needs no tools - place it, set it, work. Built from aluminum and stainless steel with a 5,000 lb minimum breaking strength at just 9.25 lbs, the trolley is removable and reusable from beam to beam. Conforms to ANSI Z359.18 and EN 795 Type B and aligns with OSHA 1926 and 1910.
Who Needs This Product
This product is a rolling I-beam anchorage connector - the moving anchor point of a personal fall arrest system under overhead steel. Crews that walk beams all shift (riggers, maintenance teams, crane bay and hangar workers) choose a trolley over a fixed clamp because the anchor follows the user instead of forcing re-anchoring every few feet. Suitable for a single user connection - each worker still needs a full body harness and a compatible connecting device.
Features
Trailing mobility
The trolley moves along the beam with the user, keeping the anchor point overhead and eliminating constant repositioning.
Fast aluminum rollers
Unique rugged but fast-moving rollers glide smoothly along the flange in both directions.
Adjustable jaws
Variable jaw positions fit flange widths from 3 to 10 inches, up to 1 inch thick.
Tool-free installation
No tools necessary - the trolley installs on the flange and removes again in moments.
Centered D-ring
The D-ring is centered on the anchorage connector and adjusts conveniently from both sides.
Aluminum and stainless build
5,000 lb minimum breaking strength at 9.25 lbs, removable and reusable beam to beam.
Technical Specifications
| SKU | ST10HTK |
|---|---|
| Type | Rolling I-beam trolley anchorage connector, removable and reusable |
| Connection | Single user; centered D-ring |
| Min breaking strength | 5,000 lbs |
| Flange width | 3 in to 10 in |
| Flange thickness | Up to 1 in |
| Material | Aluminum and stainless steel |
| Weight | 9.25 lbs |
| Installation | Tool-free; jaw adjustment to variable positions |
| Compatible connectors | Self-retracting lifeline or shock-absorbing lanyard |
| Orientation | Overhead fixed-position and trailing horizontal mobility |
| Standards | ANSI Z359.18; OSHA 1926; OSHA 1910; EN 795 Type B |
The beam carries the load. The I-beam must be verified by a qualified person for the intended fall protection load, and the jaws must be set to the actual flange width before each use. One worker per trolley - keep the connecting device attached to the centered D-ring and calculate fall clearance before work begins.
Compliance Standards
ANSI Z359.18
American National Standards Institute standard for anchorage connectors.
OSHA 29 CFR 1926
Federal construction fall protection criteria, including anchorage requirements.
OSHA 29 CFR 1910
General industry walking-working surfaces and personal fall protection rules.
EN 795 Type B
European standard for transportable temporary anchor devices.
Typical Applications
Installation Overview
Follow the manufacturer's manual. The sequence below is an overview only.
- Inspect. Check the rollers, jaws, adjusters, D-ring, and markings before each use.
- Verify the beam. Have a qualified person confirm the I-beam carries the intended fall protection load.
- Measure the flange. Confirm flange width is between 3 and 10 inches and thickness does not exceed 1 inch.
- Mount. Open the jaws, seat the rollers on the flange, and adjust the jaws to the flange width per the manual - no tools required.
- Check the roll. Confirm the trolley is captive on the flange and rolls smoothly through the work zone.
- Connect. Attach the SRL or shock-absorbing lanyard to the centered D-ring and verify fall clearance before work begins.
Inspection and Retirement
Inspect before each use, with a documented competent-person inspection at least every 6 months. Pull the equipment from service for any of the conditions below.
- Rollers: flat spots, cracks, binding, or rough rotation.
- Jaws and adjusters: deformation, thread damage, or failure to hold position.
- D-ring: bending, cracks, nicks, or wear at the connection point.
- Frame: cracks, corrosion, or deformation in the aluminum and stainless components.
- Markings: missing or illegible product label.
Retire the trolley immediately after any fall arrest event, any deformation or crack, or any condition where it cannot be verified as safe for service.
Fall ProtectionDistributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k).
Frequently Asked Questions
Frontline ST10HTK Submittals and Documentation
Frontline ST10HTK Spec Sheet (PDF)Flange range, strengths, materials, and the compliance summary. Frontline ST10HTK Test Report (PDF)Third-party test results documenting the rated performance. Frontline ST10HTK User Manual (PDF)Mounting, adjustment, inspection, and retirement procedures.Compatible and Related Products
- Frontline ST-AH Aluminum I-Beam Slider Anchor. The bushing-glide slider alternative in 12 and 18 inch flange ranges.
- Frontline ST14SA Easy Slider Beam Walker. A lightweight aluminum slider for 3.5 to 14 inch flanges.
- Frontline ST14V Fixed Beam Clamp. A fixed anchor point that clamps vertical or horizontal I-beams.
- Frontline RO4W Multifunction 4-Way Anchor. A multifunction anchor for concrete, metal, and wood substrates.
Working Long Runs of Overhead Steel?
Need help specifying the right system for your jobsite? Confirm your application, anchorage, and clearance with us and we will walk through the kit list so the right equipment ships together.
Call 863-703-4522 to talk to a fall protection specialist.
