Compactor Hydraulic Pressure Switches

What this page covers

Pressure switches turn hydraulic pressure into electrical signals. In a trash compactor, they do three jobs: they signal when the ram has reached the compaction pressure threshold (so the cycle can complete), they cut the system off if pressure exceeds the safe maximum (over-pressure protection), and they confirm the hydraulic system is pressurized before the cycle begins.

PRT stocks pressure switches with adjustable trip points across the range used in commercial compactor applications — typically 1,500 to 3,500 PSI. Both diaphragm-actuated and piston-actuated styles are available, with standard NPT thread fittings.

How to choose

Match the switch by its pressure range (set point and adjustment range), its electrical rating, and its hydraulic fitting (typically 1/4 inch NPT). The OEM part number translates directly to a PRT replacement.

If you're replacing a switch with a new set-point requirement (e.g., upgrading to higher compaction pressure), confirm the rest of the hydraulic system can handle the new pressure before adjusting the switch.

Pressure switch types in stock

• Cycle-pressure switchesSignal when ram has reached compaction pressure threshold.
• Over-pressure cutoff switchesCut the system off if pressure exceeds safe maximum.
• Low-pressure sensorsConfirm hydraulic system is pressurized before cycle begins.
• Diaphragm-actuatedStandard for most commercial compactor applications.
• Piston-actuatedFor higher-pressure industrial applications.
• Adjustable trip points1,500 to 3,500 PSI standard range, field-adjustable.