A Word from Safe T. Rex – The Inventor
of the Mobile Fall Cart
of the Mobile Fall Cart
Your Mobile Fall Cart Questions—Answered Straight
Safe T. Rex here. When it comes to rooftop safety, there’s no room for guesswork. I've spent my life (and a few others’) making sure crews go home in one piece. So let’s talk facts. No fluff. No filler. Just real answers from someone who's been there.
Let’s start with the basics.
Think of a Raptor cart as your crew’s mobile anchor system—designed for low-slope roofs where permanent tie-offs aren’t an option. You roll it in, lock it down, and you’ve got OSHA-compliant tie-off points ready to go. It’s a portable command center for staying alive.
Depending on the model, it protects from 1 to 5 workers at a time. No cutting corners. Just solid, proven safety.
Simple. Powerful. Built for job sites, not classrooms.
During normal work: Roll the cart into place on its flat-free tires. Set the brakes. Crew ties off to the proper points. Done.
During a fall: This is where my engineering earns its stripes. My claws come in handy! The patented claw instantly deploys, tearing or ripping into the roof substrate and turning the cart into a rock-solid anchor. That fall is stopped cold—exactly when it matters most.
Not all crews are the same—and neither are the carts. Here's how to match the tool to your team:
TriRex™ – The heavy hitter. 5 workers (3 fall arrest, 2 fall restraint), plus a built-in job box. This is your main rig.
R-2000™ – Built for mid-size jobs. 4 workers (2 arrest, 2 restraint), rugged steel frame, and storage.
Saber™ – Compact and powerful. 3 workers (2 arrest, 1 restraint) with removable weights for easy mobility.
Safety Bull™ – Sleek and simple. Supports 2 workers in fall arrest. No fuss, just protection.
X-Calibur™ – The lone wolf's partner. Single-worker coverage
with ultra-portability.
Heads up: Using these on concrete? The rules change. Fewer workers can tie off,. Don’t wing it—check the specs.
You bet they are. Every Raptor cart is engineered to meet or exceed:
OSHA 1926.502(d)
ANSI/ASSE Z359.6
We don’t just say it—we build it into every weld and back it with documentation. No grey area. Just gold-standard compliance.
It’s color-coded for a reason. Don’t guess—get it right.
- Green Welded Rings – For fall arrest. This is where your SRLs or shock absorbing lanyards go.
- Yellow Swiveling D-Rings – For fall restraint. Keeps workers from ever reaching the edge.
- Yellow Corner Hooks – NOT for fall protection. These are only for hoisting and transport. Tie off here, and you're asking for trouble.
Absolutely. The day you buy is just the start of our relationship.
We provide training, technical support, maintenance guidance—you name it. You're never flying solo. Not on my watch.
Because we give you the data upfront.
Substrate limits, capacity rules, tie-off configurations—it’s all spelled out. No fine print. No question marks. Just truth, so you can work with confidence.
Because we build like lives depend on it because they do.
- Premium materials
- Superior welds
- Corrosion-resistant finishes
- Field-tested durability
These carts don’t just meet specs—they survive job sites. Day in, day out.
Yes. Always.
Stopping the fall is half the job. Getting your worker down safely is the rest. Have a site specific rescue plan, the right gear, and make sure your crew practices it. Don’t wait for a fall to find out you're not ready. We have a solution for you!
Because I stand behind every bolt.
When you choose Leading Edge, you’re not just buying equipment—you’re investing in a legacy of innovation, real-world experience, and unmatched support. Others copy. We lead.
When I made or created the mobile fall cart. The Raptor was first to market. Everything after has been a tribute act.
Every cart is engineered with a specific load rating. Here's what you need to know:
TriRex™ – 5,000 lbs total capacity with proper weight distribution.
R-2000™ – 4,500 lbs capacity, built for versatility.
Saber™ – 3,500 lbs with removable weights for flexibility.
Safety Bull™ – 2,500 lbs, compact but capable.
X-Calibur™ – 1,500 lbs, designed for solo operations.
Never exceed these limits. Overloading compromises the entire system and puts your crew at risk. Check your cart's documentation for exact specifications.
Yes, but with important limitations. Concrete roofs present a different challenge than asphalt or membrane roofs.
The patented claw system works differently on concrete—it can't penetrate the way it does on softer substrates. This means fewer workers can safely tie off when using concrete anchoring methods.
Always consult the specific cart's documentation for concrete roof capacity. You may need to use alternative anchoring methods or reduce the number of workers. When in doubt, contact our safety team for guidance on your specific roof type.
Inspection is non-negotiable. Here's the schedule:
Before Every Use: Visual inspection of the frame, welds, wheels, brakes, and tie-off points. Look for cracks, rust, or damage.
Monthly: Detailed inspection including wheel condition, brake function, and claw mechanism operation.
Annually: Professional inspection and certification. Document everything.
Keep detailed records. If you find damage, take the cart out of service immediately. A compromised cart is a liability—not just for your crew, but legally.
Yes—and then some.
Cheap safety is the most expensive mistake you can make. My carts are built to last longer, cost less over time, and perform when it counts. That’s the difference between buying a product and investing in protection.
My team’s ready. We’ll walk your site needs, crew size, and mobility requirements to find the right model—not just any model.