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There are many benefits to using our Hydrapak hydraulic oil cooler when compared to a traditional high volume oil tank. These benefits include a reduced installation footprint which results in a space saving, lower net weight resulting in higher payloads for your operation along with increased energy efficiency – all of which lead to reducing your running costs.

The HK3 Hydrapak is available in 200 or 300 Bar models and with 100 or 140 litre per minute flow fitting kits.

Contaminant-Free Discharge
Oil-free air protects product quality 

High Flow Performance
Up to 1,025 m³/h for fast unloading 

Flexible Installation
Multiple drive and package options available 

Built for Dry Bulk
Ideal for cement, lime, flour and feed products

Key Specifications

Operating Pressure (bar)

80 - 300

bar

Flow Capacity (m³/h)

100 - 140

m³/h

Space Saving

The small footprint of the Hydrapak HK3 allows flexible installation opportunities in a number of positions on a vehicle. The units are also considerably smaller than traditional 200-300 litre oil tanks meaning hydraulically driven equipment can be mounted virtually anywhere on a chassis.

Increased Payload

With a low weight of 17kg (without oil), the Hydrapak HK3 can provide significant payload increases for your operation. The unit even when filled with 11 litres of oil, is significantly lighter than the traditional oil tank it replaces which may contain anywhere between 150-300 litres of hydraulic oil.

Lowers Running Costs

The light and small Hydrapak HK3 lowers your running costs by reducing your fuel consumption and lowering maintenance costs. When it comes to the annual oil change within the hydraulic oil change, you would only need to replace 11 litres instead of 150-300 litres which itself provides a huge cost saving and gets you back on the road faster.

Variable Performance

We offer two models for the Hydrapak HK3, a 200 Bar maximum pressure version and a 300 Bar maximum operating pressure version. Both units are fitted with a Pressure Safety Relief Valve to protect both the Hydrapak and the hydraulic system from any over pressuring. Also available are 100 l/min and 140 l/min maximum operating oil flow fittings kits meaning the HK3 can be customised to suit all of your requirements.

 

 

Hydrapak HK3 Overview: Hydraulic Systems

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Applications

The Hydrapak HK3 is designed for hydraulic systems where space, weight and reliable oil cooling are critical. It can support hydraulically driven compressors, blowers, vacuum pumps, specialist product pumps, and walking floor or belt discharge systems.

Industries

The Hydrapak HK3 supports hydraulic applications across a range of transport industries, including:

Hydrapak HK3 Models

Model

Pressure Range

HYDRAPAK-S-BM

Standard pressure version for 80–200 bar hydraulic systems

HYDRAPAK-H-BM

High pressure version for 200–300 bar hydraulic systems

Performance

  • Maximum operating pressure: 200 bar or 300 bar, depending on model
  • Flow options: 100 l/min or 140 l/min
  • Heat dissipation: 8 kW at 40°C oil temperature rise and 45°C ambient temperature
  • Ambient operating temperature: -30°C to +45°C

Walking Floor Performance

For typical walking floor applications, the HK3 can support operating requirements around:

  • Operating pressure: 225 bar
  • Oil flow: 110 l/min

 

Physical Specifications

  • Dimensions: 340 × 607 × 375 mm (W × H × D)
  • Dry weight: 17 kg
  • Integrated oil reservoir: 13 litres
  • Operating oil capacity: 11 litres

 

Integrated Equipment

The Hydrapak HK3 combines the essential components of the hydraulic oil cooling system within one compact assembly, including:

  • Oil reservoir
  • Cooling fan and radiator
  • Hydraulic fan motor
  • Pressure relief valve
  • 10-micron return filter
  • Filter/radiator bypass valve
  • Oil level sight glass
  • Filter blockage indicator
  • Suction elbow and pipe kit

 

Flow Kit Options

Choose the flow kit to suit your hydraulic system requirements:

  • Medium Flow Kit – up to 100 l/min
    Part No. HK26-M-FPUK
  • High Flow Kit – up to 140 l/min
    Part No. HK26-H-FPUK

Suction Hose Options

  • 1.5" LP Suction Hose – 2 m length, suitable for medium-flow applications
    Part No. 6471400821-2
  • 2" LP Suction Hose – 2 m length, suitable for high-flow applications
    Part No. 6472000821-2

Installation Accessories

A range of accessories is available to support installation requirements:

  • Anti-vibration mounting pads
  • Non-spill couplings for tractor/trailer installations
  • Deflector plate for installations adjacent to compressors

The Hydrapak HK3 combines key hydraulic system components within one compact assembly, including:

  • Oil reservoir
  • Cooling fan and radiator
  • Hydraulic fan motor
  • Pressure relief valve
  • 10-micron return-line filter
  • Filter/radiator bypass valve
  • Oil level sight glass
  • Filter blockage indicator
  • Suction elbow and pipe kit

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