TCRB-4 (M30/K4) Manual Crash Rated Beam
Product Notes
- TCRB-4 (Manual Operation) closes single clear opening widths up to 25 feet.
- For larger clear opening widths, the TCRB-4-EMLA (Electro-Mechanical) and TCRB-4 (Hydraulic) close single clear openings up to 26 feet.
- Custom sizes and options are available. Check with manufacturer.
Product Summary
The TCRB-4 (Manual Operation) is ASTM F2656-07-M30-P1 certified (equivalent to U.S. Department of State K4). Will stop a 15,000 pound vehicle traveling at 30 mph within 1 meter. Components include steel stanchions and an aluminum beam containing proprietary engineered cabling. For ease of operation the system is counterbalanced.
Technical Data Sheet 
Drawing CAD 
Drawing PDF 
Specification Features & Benefits
- Counterweights are designed in, allowing the barrier arm to be raised or lowered with minimal effort.
- When in the closed position the arm can be secured with a Locking Pin and padlock.
Frequently Asked Questions
TYMETAL has been in the perimeter security solutions market since 1985. With more than three decades of experience designing, manufacturing, and installing the TCRB-4 (M30/K4) Manual Crash Rated Beam, we have encountered many questions along the way. Explore a few of the common questions we are asked below. If you don’t find the answers you’re looking for, feel free to contact us by phone at 888-978-4283 or online.
How does U.S. DoS K4 compare to ASTM F2656 M30/P1 equivalency?
The U.S. Department of State K4 rating is functionally equivalent to ASTM F2656 M30/P1, both requiring the barrier to stop a 15,000-lb vehicle traveling at 30 mph within a certified penetration distance. TYMETAL’s TCRB-4 meets both designations, ensuring the product satisfies both government facility specification requirements and commercial ASTM-based project standards.
What is the typical lane width and clear opening supported per installation?
The TCRB-4 is designed for standard vehicle lane widths used at government and commercial access control points. The beam travels across the full lane width when deployed and retracts fully when the lane is authorized for vehicle passage. Contact TYMETAL for available clear opening widths and configuration options for your specific lane requirements.
What corrosion protection and coating systems are available for coastal sites?
The stanchions on the TCRB-4 are steel and available in hot-dip galvanizing for coastal and high-salinity environments. For site-specific corrosion protection guidance, contact TYMETAL directly.