Construction

Construction cylinders take the kind of abuse that no spec sheet fully captures: the bucket that slams into buried rock, the outrigger set down on an uneven pad, the boom cycled thousands of times a shift through dust and grit. The failure modes are rarely about raw pressure. They are about shock loading, side loading, and the slow wear of contamination working past a tired wiper. A cylinder built for this world is built around wear resistance and impact tolerance first.

That starts with the rod and the bearings. Polyurethane rod seals hold up to the high cycle counts a working machine racks up, and generously sized rod bearings carry the off-axis loads that come standard on a loader or an excavator arm. Wiper selection matters as much as the seal behind it — on a jobsite the wiper is the only thing standing between the rod and a steady diet of sand. Get it wrong and the whole gland is scored inside a season.

Because a downed machine stops the whole crew, the priority is often turnaround as much as design. We build replacement cylinders to the original print, or reverse-engineer from the worn part when the OEM unit is discontinued or backordered past reason. Cushioning gets tuned to the equipment so the cylinder decelerates its own mass at end of stroke instead of hammering the caps. Every cylinder is pressure-tested to its rated working pressure before it ships, so the first cycle on the machine is not the first time it has held load.

Representative applications

• Excavator boom, arm, and bucket cylinders
• Loader lift and tilt cylinders
• Outrigger and stabilizer legs
• Telehandler boom extension and compensation
• Concrete pump, screed, and paver actuation