Cylinder Honing is vital where cylinders have been damaged due to piston collapse, metal contamination or shaft breakage. Jesco operates what we believe is the largest fully automated Sunnen horizontal honing machine in the South island. It is capable of honing cylinders with a diameter of as little as 70 centimetres up to a massive 1120 centimetres and has an uninterrupted stroking length of around 4 meters which ensure a perfect finish.
Jesco have reclaimed literally thousands of cylinders which without this hone would have been written off.

Hydraulic Rams come in hundreds different sizes and configurations with huge array of different seals, pistons and heads. It is not uncommon for Jesco to receive over 30 rams per week to be overhauled.