plowstop

A plowstop is a mechanical or hydraulic device used to limit the travel or depth of a snow plow blade on a plow-equipped vehicle. It can be a fixed physical stop built into the mounting frame, an adjustable stop, or an end-of-stroke device linked to the plow’s hydraulic system. The purpose is to control how far the blade penetrates into snow, prevent contact with the road surface, curbs, or other obstacles, and ensure a consistent plowing height.

The primary functions of a plowstop are to protect equipment from damage, reduce wear on the plow and its mounting, and improve plowing efficiency by maintaining predictable blade position. Stop settings are typically calibrated before each shift or season and may be adjusted to accommodate varying road conditions, snow depth, or pavement type. Some systems use electronic limit switches or sensors to halt the plow automatically at a preset position, while others rely on manually adjustable stops.

Common designs vary from simple fixed bolts or pins that act as physical limits to adjustable cleats or brackets that set a precise clearance. Advanced plows may integrate depth gauges, hydraulic end stops, or electronic controls to provide repeatable settings and easier calibration for operators.

Maintenance involves inspecting stops for wear, ensuring fasteners are secure, lubricating moving parts, and verifying that calibration matches the intended clearance. Periodic checks help maintain consistent blade performance and prevent unwanted contact with the road or obstacles.