Hydraulic Power Units
The Perfect Partner for Your Servohydraulic Test System
Instron®’s 3520 series allows you to configure a Hydraulic Power Unit (HPU) to meet all your testing requirements and site conditions with unsurpassed efficiency and low environmental impact. They are used to provide varying flow rates of hydraulic oil at high pressure and are compatible with the full range of Instron’s Servohydraulic Dynamic and Fatigue Testing Systems. The 3520 Series includes model variants producing 210 bar or 280 bar and flow rates from 27 to 118L/min (7.1 to 31.2 GPM).
Low Noise Levels: Acoustic attenuation system providing noise levels of 58 - 63 dB (A)*.
Low Operating and Power Costs:
The pressure-compensated variable flow pump configuration ensures operating costs are maintained with test flow demand. Combined with high-efficiency Class 1 motors, power costs are kept to an absolute minimum.
The Programmable Logic Controller (PLC), fitted to every model, provides optimum system control and Hydraulic Power Unit status feedback, as well as a broad range of system interlocks (including oil level, oil temperature, filter condition, and motor temperature).
All 3520 Series Hydraulic Power Units feature a full integrated Programmable Logic Controller (PLC) with a conveniently positioned operator interface panel. The PLC provides powerful control features in combination with the advanced circuitry of the HPUs, including:
Minimal Electricity Consumption
The Class 1 high-efficiency motors operate at 92 - 95% efficiency (typically), minimizing electricity consumption.
Leak-free, face-sealed fittings guarantee clean operation.
Minimal Water Consumption
A water-oil plate heat exchanger coupled with a thermostatically controlled water flow valve results in minimal water consumption.
Low Environmental Impact Service
With major serviceable components outside the oil reservoir, there is almost no risk of spillage or need for cleaning when exchanging key components. This also reduces service time and cost.
Each 3520 Series Hydraulic Power Unit (HPU) can be factory-fitted with a number of options to meet specific site conditions.
With noise levels as low as 58-63 dB (A)*, depending upon the model selected, combined with an internationally supported leak-free guarantee, Instron advanced noise reduction technology often eliminates the need for a specially-built pump room, providing greater flexibility when locating the Hydraulic Power Unit. The acoustic attenuation system achieves exceptionally low noise specifications while providing ease of maintenance.