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​Hydraulic Engineering North Harbour

Alloy Hand Pump

Mast Ram Only

Back Stay

Mast Tensioner Pump/Ram Unit

Pump, Hose & Mast Ram 

Hand Pump, Plus Two Outside Rams

Pump Ram Units


..which is placed permanently in the spar and is operated by inserting a fibreglass handle through a slot in the spar.


These units are custom-built to customer's technical requirements with the importance on lightness, strength and durability. Material used is alloy anodised, stainless, with fibreglass handles, Gauges positioning is optional.

Engineering for Yachts

Manufacturers of Custom Built Hydraulic Mast Rigging Tensionsers & Backstays