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XVARI Hydraulic Pump Advances Safety
Hydraulic Foot Pumps
A new generation air over hydraulic foot pump is being introduced by Enerpac which it says enables finer and safer control of tasks while completing jobs up to twice as quickly as conventional pumps.
XVARI Hydraulic Foot Safety Pumps
The 700 bar XVARI ® XA features tremendously high oil flow, with its rotating air motor and rotating two stage pump element giving hydraulic delivery up to 50 per cent higher than conventional pumps with linear motor and single piston.
This radically different technology offers variable oil flow and fine metering for precise control, is coupled with ergonomic two pedal control of advance and retract functions for time efficient and safer hands free operation with less operator fatigue and increased stability.
Never before have these three vital advantages: Tremendously high oil flow, precise control and ergonomic operation have been combined in one hydraulic pump.
XVARI Technology
XVARI technology takes a revolutionary step into the future, setting a new industrial standard that eclipses the 50 year old technology of conventional air over hydraulic foot pumps.
Hydraulic Pump Control
XVARI technology allows users to continuously and precisely control the amount of hydraulic oil flow in the pump’s advance and retract mode, giving fine control of the speed of operation of the single acting hydraulic cylinder or tool that the pump is powering.
"This fine process control is especially valuable for jobs that require accurate load positioning, aligning and controlled descent. The better control improves productivity, enhances process quality and makes the workplace safer." says Mr Cooper
Foot Pump Balance
Enerpac is also breaking the mould and surpassing tradition by applying a two pedal design: one for tool advance (introducing pressure) and one for tool retract (releasing pressure). The pedals are depressed with the ball of the foot so the heel stays on the ground, with bodyweight resting on both legs during operation.
This causes less fatigue and provides increased stability and better control over the degree of pressure and thus control on the pump. The pump can be optionally equipped with an integrated pressure gauge. The 8kg pump’s broad base area enhances its stability.
Hydraulic Foot Pump Technology
Enerpac market research showed many users wanted higher hydraulic delivery. XVARI technology (which patents have been applied for) produced gains of up to 50 per cent compared with conventional air over hydraulic pumps. XVARI’s rotating air motor and rotating two stage pump element also offers accurate control of speed via the pedal control.
This fine control provides a variable oil flow, so the speed and position of the hydraulic cylinder or tool can be controlled much more precisely, enhancing control of the work being preformed.
XVARI’s higher piston speeds result in a smooth oil flow compared with the pulsating oil flow of conventional technology. A closed oil reservoir prevents leakage and eliminates internal contamination from airborne particles.
Time Saving with Enerpac
XVARI’s higher oil flow considerably reduces the time required to extend the cylinder or tool and build up maximum pressure. (Outflow flow rates are 0.25 l/min at rated pressure, 2.0 l/min with no load, with a usable oil capacity of 1 litre and dynamic air pressure range of 2.1-8.6 bars). Compared with many conventional air over hydraulic pumps, the XA series is up to twice as fast.
Hydraulic Release Valve
Enerpac also developed a special hydraulic release valve for the pumps retract function. This is accurately controlled by the released pedal.
The further the pedal is pressed, the faster the hydraulic pressure reduces and the faster the cylinder or tool retracts. This feature results in much better control over retract functions (for example, when a load must be lowered slowly and in a controlled manner).
Pedal Function
XVARI features a pedal lock function for it’s retract position, a ground screw for improved ATEX explosion safety and external adjustable pressure setting valve. Accessories include:
- High Quality Hydraulic Hoses
- Pressure Gauges and Pedal Safety Guard
- Joy Stick Lever Kit for Manual Operation
- Hydraulic Swivel Connector
Applications of the Hydraulic Foot Pump from Enerpac
Enerpac has been established in Australia and New Zealand as a major supplier of high pressure (700 bar) hydraulic equipment for 50 years, having nationwide service backup and a strong distribution network.
Its ranges of 700 Bar (10,000 psi) precision hydraulic cylinders, tools and safety equipment (contained in its E325A catalogue) is complemented by professional bolting technology being introduced by Enerpac to address the needs of major areas of industry, including:
- Mining and Energy
- Infrastructure Construction and Manufacturing
- Pipelines and Mobile Machinery
- Tracked and Heavy Vehicles
- Cranage and Fixed Plant