Remote-Mount Cylinders are the original spring brake
invented in the rugged logging country of Northern California.
These cylinders were introduced by MGM Brakes in 1956 as the world's
first spring-actuated parking and emergency brake actuators for
commercial vehicles. The "pull-to-actuate" cylinders
were designed for axle-mount or frame-mount using various weld-on
and bolt-on mounting brackets and linkage arms.
Today, these high-quality air-actuated cylinders
have been adapted to such diverse non-automotive usage as fail-safe
dump truck end-gate actuators, emergency brake actuators on massive
logging and commercial fishing winches, and numerous other special
Standard Stroke Model R4A
Standard Stroke Model R5AHD
Heavy-Duty, Remote Cylinder
Standard Stroke Model R7A
Spring Applied, Air Released - SAAR
Standard Stroke Model R8H
Spring Applied, Hydraulic Release - SAHR
SAAR and SAHR Drive-line brakes were developed as replacement for manually operated lever applied "drive-line" brakes on class 6 and 7 vehicles. Mounted to the frame rail, the actuator utilizes a cable to apply parking force to a drum mounted on the drive-line. An optional electronic "travel" sensor provides the operator with information pertaining to the position of the push-rod, "applied" or "released".