The highly portable 13 kg P84 pump – and the complementary P464 high capacity model – each feature manual four-way control valves through which they can actuate either typical single-acting cylinders or also widely used double-acting cylinders that provide powered extension and retraction.
The capability to power double-acting cylinders permits the rugged steel hand-pumps to facilitate rapid and precise control of jobs through the powered extension and retraction of cylinder plungers in tasks such as fabrication, lifting, cutting, clamping, pressing, testing, forming, aligning, nut splitting and pushing and pulling mechanical components such as bearings and seals.
The P84 and P464 (with large 7.42 litres, 453 cu in oil capacity ) share the two-speed operation of the broader ULTIMA range, which means the faster first stage can be used to quickly position the plunger of the hydraulic cylinder where it is needed, before employing the powerful second stage (700-2800 bar, 10,000-40,000 PSI) to do the heavy work.
Two-speed pumps are recommended for applications where the cylinder plunger must advance rapidly to contact load and applications where greater oil capacities are required, such as multiple cylinder hook-ups. The P84 and P464 control valve is designed for use with either one double-acting or two single acting cylinders.
Like the entire ULTIMA series, the P84 and P464 feature an innovative design that provides greater ease-of-use, with handle effort reduced by up to 20 percent without compromising speed or performance. The pumps' innovative bypass system further reduces loads often created by earlier types of two-stage pumps, says Enerpac. Maximum handle effort is 30kg for the P84 and 43.3kg for the P464.
"By incorporating the new Power Push handle grip and linkage design, loads are better distributed, further reducing felt load while pumping – minimising operator fatigue. Not only are these high pressure tools more compact than lower pressure varieties – packing more power into a smaller, more portable pump – but also they are lighter and quicker to set up, giving greater ergonomic and safety benefits."
The versatile new generation ULTIMA steel hand pumps – weighing as little as 7kg – are ideally suited for rugged applications where durability is of utmost concern and where on-site pneumatic, petrol or electric power sources are not available or not required for reasons of safety, convenience or remoteness. They comfortably handle cylinders of 5-25 tons capacity and sometimes considerably more, while withstanding rugged sites and rough treatment.
The pumps are compatible with a huge range of high-pressure hydraulic tools already in widespread use in industries such as automotive; architectural, building and construction; civil, mechanical, production and process engineering; electrical distribution and maintenance; energy production and reticulation; food and beverage production and maintenance; government utility; manufacturing; materials handling; metal fabrication and work-holding; mining and resources (incl. pipeline maintenance); oil and gas, packaging; transport; workshop mechanical maintenance operations; primary production (inc farm, forestry and pulp and paper); shipping; and safety.