Mining and heavy process equipment can expose cylinders to abrasive contamination, impact, high duty and difficult service access.
Operating Conditions That Drive Selection
The first design question is often the real load path. Off-axis force, guide wear, frame deflection and shock can shorten rod, bearing and seal life even when nominal pressure is acceptable.
Dimensions and Circuit Inputs to Capture
For frequent cycling, note oil and ambient temperature, cycle duration and time at peak load. Power-unit and valve sizing must manage heat and pressure loss as well as deliver force and speed.
Reliability and Maintenance Focus
Maintenance should include rod, pins/bushings, leakage trend and contamination control. Repeated leakage after seal replacement warrants a root-cause check for scoring, misalignment or pressure spikes.
Relevant Product Families

EP-HPU-DC Series Compact DC Hydraulic Power Unit
EP-HPU-DC configurable compact hydraulic power unit for battery or vehicle-powered cylinder circuits.

EP-HPU-AC Series AC Hydraulic Power Unit
EP-HPU-AC configurable AC hydraulic power unit for stationary industrial cylinder systems.

EP-HPU-SYS Series Custom Hydraulic Power Unit & Valve System
EP-HPU-SYS custom hydraulic power unit and valve-manifold system configured around the cylinder circuit and duty.

EP-WP Series 3000 PSI Welded Through-Hole Hydraulic Cylinder
EP-WP welded through-hole cylinder series with model dimensions, pressure, column-load and port data.
Discuss Your Hydraulic Requirement
Send bore, stroke, mounting, pressure, ports, load and duty details. For replacements, include photos and critical measurements.