Overhead Universal RockLock™
RockLock™: The Adjustable Arm Safety System That’s Changing the Industry
The Overhead Universal RockLock™ System is an adjustable top-rail slab restraint that clamps to existing A-frames to prevent over-center tipping during slab storage, staging, and transport.
Portable aluminum overhead stabilization for suitable existing A-frames
The Universal Overhead Aluminum RockLock™ is a lightweight, Heavy Duty portable system designed to provide overhead slab stabilization on all existing A-frames.
Developed by an engineer with 30+ years of industry experience solving slab handling challenges.
The system operates from above the slab load and can be moved between compatible A-frames. It provides the RockLock™ slab-by-slab stabilization principle without requiring a permanent horizontal Weld-On or Bolt-On cross-tube system.
Meet the Overhead Universal RockLock™ System
Engineered Top-Rail Restraint for A-Frame Slab Storage
Safety Features and Advantages
✅ Clamp-on top rail design — installs in minutes
✅ Lightweight and portable.
✅ Heavy-duty aluminum construction.
✅ Provides overhead RockLock™ stabilization.
✅ Can be moved between suitable A-frames.
✅ No welding or permanent cross-tube installation.
✅ Quick manual operation.
✅ No electricity or hydraulics.
How the Overhead Universal RockLock™ Controls Tipping
1. Position the lightweight aluminum unit over the existing A-frame.
2. Adjust the RockLock™ arms to the slab load.
3. During loading, raise the arm only when the incoming slab enters, then immediately lower it against the outer slab.
4. Repeat RAISE → LOAD → LOWER → SECURE for each incoming slab.
5. During unloading, use RAISE → REMOVE → LOWER → SECURE, immediately stabilizing the next remaining slab.
Applications
· Suitable existing A-frames
· Utility-trailer or other compatible A-frame applications
· Warehouse and slab-yard handling
· Smaller slab quantities
Engineering Specifications & Performance Data
Item
Rated Capacity
Construction
Stabilization
Operation
Power Required
Specification
Up to 10 slabs total - 5 per side
Heavy-duty aluminum
Overhead patented RockLock™
Manual/mechanical
None
