Southco Introduces R4-50 Heavy-Duty Rotary Latch to Improve Cab Access and Operator Safety
Designed for off-highway and agricultural equipment, the R4-50 rotary latch enables independent interior and exterior actuation, reduces vibration and accidental release, and offers flexible integration for cab door systems.
southco.com
For operators of off-highway and agricultural equipment, cab entry doors can be a daily frustration. Rough environments cause vibration, accidental door releases risk safety, and complex access mechanisms can slow down work in the field. Heavy-duty equipment demands a latch system that is just as rugged, reliable, and easy to use as the machinery it protects.
Southco has introduced a new solution designed to tackle these challenges head-on: the R4-50 Rotary Latch with Dual Triggers.
Engineered for demanding conditions, the R4-50 delivers:
- Independent interior and exterior actuation – making it easier and safer to enter and exit equipment cabs.
- A pre-loaded interior hand lever – purpose-built for high-impact environments, reducing noise and vibration while ensuring smoother, more reliable operation.
- Accidental actuation prevention – minimizing unintended movement to keep operators secure and equipment protected.
- Flexible release options – including remote actuator connection via cable or rod, or direct push release, to meet different cab design needs.
Southco’s R4 Rotary Latch series is highly durable and is available in a variety of configurations that meet customer needs with little to no modification, including compact mechanical and electromechanical designs made of durable materials suitable for any environment. R4-50 Rotary Latches with Dual Triggers are capable of meeting FMVSS 206 impact standards, and EN 45545-3 fire protection standards.
As a heavy-duty upgrade to Southco’s trusted R4 Rotary Latch line, the R4-50 with Dual Triggers combines operator safety, rugged durability, and simplified access in one cost-effective system. The latch is also compatible with Southco AC actuators, offering OEMs a low-investment, high-value option for enhancing their cab entry solutions.
Global Product Manager Cynthia Bart adds, “The new R4-50 Rotary Latch with Dual Triggers offers a complete, highly versatile cab door entry system for use in heavy-duty construction and agricultural vehicles. The latches are compatible with Southco AC Actuators, allowing designers to quickly and affordably upgrade their existing designs.”
For more information about the functionality of R4-50 Rotary Latches, please visit southco.com or email the 24/7 customer service department at This email address is being protected from spambots. You need JavaScript enabled to view it..
