4035012583 CYLINDER AMS D 40mm HUB 140mm Spare Parts For Homag Woodworking Machine

When a clamp, stop or positioning cylinder on a Homag machine starts to creep, lose force or stick mid-stroke, the machine stops holding position. A worn bore or a scored rod shows up as inconsistent clamping pressure and rejected work at the fence.

The 4-035-01-2583 4035012583 is a double-acting, single-rod cylinder with a 40mm bore and a 140mm stroke. An anodized aluminum body carries a stainless steel piston rod, and both ports are G1/8" threaded. It fits Homag woodworking machines.

Mount the cylinder with its G1/8" ports facing the existing air lines and check that the 140mm stroke clears the moving clamp or stop through its full travel. A double-acting, single-rod layout pushes and pulls, so the return stroke is powered rather than spring-driven.

Ordering runs on the part number, so send 4-035-01-2583 and 4035012583 together with the machine model and a photo of the old cylinder's ports and rod. State the quantity you need per machine.

Port threads and rod condition decide whether the swap runs clean. G1/8" ports take the existing fittings, and a stainless steel rod resists scoring where dust passes the seal. Check the 40mm bore and 140mm stroke against the old unit before you pull it, because a cylinder that matches on both numbers drops straight in.

Double-acting, single rod

Worn-out original on a Homag machine

What the specification fixes, and what it leaves to the machine:

• Bore and stroke match — A 40mm bore and 140mm stroke give the same clamp travel and holding force as the cylinder you are removing.
• Port fit — G1/8" threaded ports accept the existing air fittings, so the air lines reconnect without adapters.
• Rod wear point — The stainless steel piston rod resists scoring where wood dust passes the seal on each stroke.
• Body material — An anodized aluminum body keeps the cylinder light on the clamp bracket and resists surface corrosion.
• Air circuit — Double-acting, single-rod operation means both extend and retract strokes are powered by air.
• Fitment check — Match 4-035-01-2583 and 4035012583 on the old cylinder and measure bore and stroke before ordering.
• Machine fit — Built as a spare for Homag woodworking machines, it replaces the failed cylinder at the same mounting point.
• Seal contact — A 40mm bore keeps the piston seal running on a known bore size, so replacement seals match the original.
• Installation clearance — A 140mm stroke sets how far the clamp or stop travels; check full travel clears the work before bolting down.
• Rod alignment — A single stainless steel rod must line up with the load; misalignment shows as uneven rod wear.

What changes on the shop floor when the right part goes back in:

• Repeatable clamp position. A 140mm stroke returns the clamp or stop to the same point every cycle, so operators stop re-checking position and rejected parts from drift drop off.
• Air lines reconnect without adapters. G1/8" threaded ports match the fittings already on the machine, which cuts the swap to disconnecting, unbolting, refitting and reconnecting the same lines.
• Rod wear is visible early. The stainless steel piston rod shows scoring as a line along its surface, so a maintenance check finds a failing seal before the clamp loses holding force.
• Both strokes are powered. Double-acting, single-rod operation drives extend and retract with air, so clamp release timing stays even instead of depending on a return spring.
• Light load on the bracket. An anodized aluminum body keeps weight off the clamp bracket, which matters where the cylinder hangs on a moving arm through every cycle.
• One number to reorder. Keeping 4-035-01-2583 and 4035012583 on the spare-parts shelf means the right cylinder is on hand when a clamp fails mid-shift.
• Fit is checked, not guessed. Matching both part numbers and measuring 40mm bore and 140mm stroke against the old unit confirms the replacement before it ships.

Match both numbers 4-035-01-2583 and 4035012583 on the old cylinder, then measure its bore at 40mm and its stroke at 140mm. G1/8" ports confirm the connection. If all four match, it is the same cylinder.

D=40 is the 40mm bore and HUB=140 is the 140mm stroke. Bore sets the piston area and force; stroke sets how far the rod travels.

Yes, if your old cylinder uses G1/8" ports. Both ports on this cylinder are G1/8" threaded, so the existing fittings screw in without adapters.

Double-acting with a single rod. Air drives both the extend and retract strokes, so the return is powered rather than spring-driven.

An anodized aluminum body with a stainless steel piston rod. The aluminum body keeps weight down; the stainless rod resists scoring from wood dust.

Send both part numbers, 4-035-01-2583 and 4035012583, the machine model, the quantity per machine and a photo of the old cylinder's ports and rod. Add any packing or customisation requirement so it can be confirmed in writing.

Yes. State the quantity you want per machine and for stock in the enquiry. Ordering on the part number keeps repeat orders on the same cylinder.

Check that the 140mm stroke clears the clamp or stop through full travel and that the rod lines up with the load. Misalignment shows as uneven rod wear.