A welded hydraulic cylinder has no tie rods. The barrel is welded directly to the end caps, the ports are welded to the barrel and then the front rod gland is usually threaded into or bolted to the cylinder barrel. This allows the piston rod assembly and the rod seals to be removed for service.
A welded hydraulic cylinder has a number of advantages over tie rod style hydraulic cylinders, they:
- have a narrower body, and often a shorter overall length, enabling them to fit better into the tight confines of machinery;
- do not suffer from failure due to tie-rod stretch at high pressures and long strokes;
- can be more readily customised with features added to the cylinder body including: special ports, custom mounts, valve manifolds, and so on.
The smooth outer body of welded cylinders also enables the design of multi-stage telescopic cylinders.
Welded body hydraulic cylinders dominate the mobile hydraulic equipment market in areas such as construction equipment (including excavators, bulldozers) and material handling equipment (fork lift trucks and tail lift gates). They are also used in heavy industry such as: cranes, oil rigs, and large, off-road vehicles in above ground mining.
Visit our catalogue and view some of the welded hydraulic cylinders we have within our range. Note that this is just a sample of some of the hydraulic cylinders that we regularly supply, so call us or complete our Stock Enquiry Form if you can’t find the hydraulic cylinder that you’re looking for… and if you don’t know what sort of cylinder you need we should still be able to help!