Shandong Laiduan Machinery Co.,ltd

Shandong Laiduan Machinery Co.,ltd  

Add:ZHAILI, LAIWU CITY-SHANDONG PROVINCE – CHINA

Con:Jun Li

Pho:(86)18606349977

Tel:(86)634 6512388

Fax:(86)634 6512388

Email:felix@laiwuforging.com

Forged Piston Rods

Forged Piston Rods

Forged Piston Rods A piston rod is mainly used for hydraulic machinery and engineering machinery. It is the linear axis. A piston rod joins a piston to the crosshead and thus to the connecting rod that drives the crankshaft or (for steam locomotives) the driving wheels. Piston rods are usually...

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Forged Piston Rods

A piston rod is mainly used for hydraulic machinery and engineering machinery. It is the linear axis. A piston rod joins a piston to the crosshead and thus to the connecting rod that drives the crankshaft or (for steam locomotives) the driving wheels.


Piston rods are usually attached to the crosshead and the piston by a transverse slot and a tapered key or gib. Driving this key sideways tightens the attachment. Using a transverse key allows relatively easy dismantling for maintenance. Some smaller pistons are retained by a threaded piston rod and a large nut, although the crosshead nearly always uses a key.


As the precise length of the piston rod is important for timing the engine's valvegear, the attachment tightens the piston down onto a fixed step or location in the piston rod and the length (and valve timing) is not adjustable. This length requires the precision of the manufactured rod but, unlike the rod driving the valves, does not need to be adjusted even more precisely by a fitter during the engine's erection.


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