HGPU

Hydraulic Ground Power Unit

Hydraulic Ground Power Units are mainly used inside the hangar. A crucial factor for these operators is the noise. With a noise level of 72 dB, full load, at a distance of 1 meter makes communication hassle-free. The well-engineered design of the hydraulic cart has many advantages. One of the highlights is its clean functioning. The hydraulic installations and the cooling are separated. Therefore it is impossible that Skydrol contaminates the environment. Neither the aircraft nor the operator will suffer from oil contamination, saving a lot of time and hassle in cleaning processes.

Technische Spezifikation

Hydraulic Parameters:
  • High Pressure: depending on unit type
  • High Pressure Circuit - Single System 3000psi: 7 - 207 bar at max. 190-227 lpm, 100 - 3000 psi at max. 50 -60 USgpm, max. 275bar (4000 psi) at reduced flow rate
  • High Pressure Circuit - Single System 5000psi: 7 - 345 bar at max. 227 lpm (100 - 5000 psi at max. 60 USgpm), max. 375 bar (5300 psi) at reduced flow rate
  • High Pressure Circuit - Dual System: 2 x 7 - 207 bar at max. 2 x 95 at 2 x 114 lpm, 2 x 100 - 3000 psi at max. 2 x 25 at 2 x 30 USgpm, max. 2 x 275 bar (2 x 4000 psi) at reduced flow rate
Measurement accuracy:
  • Supply pressure (analog): 0 – 400 bar (0 – 5800 psi), cl. 1 (EN 837)
  • Return pressure (analog): 0 – 10 bar (0 – 145 psi), cl. 1.6 (EN 837)
  • Oil temperature indicator: 0 – 100°C (32 - 212°F)
  • Flow measurement: Single circuit 0.32 - 250 lpm (0.08 - 66 USgpm) ±1% of full scale
  • Dual circuit 0.32 - 160 lpm (0.08 - 42 USgpm) ±1% of full scale
  • Depending on the type of the equipment, the following hydraulic oils can be used: Phospate-Ester Hydraulic Oil (”Skydrol” or ”Hyjet”) or Mineral Oil based Hydraulic Oil (”MIL-H-5606”, ”MIL-H-83282”, ”MIL-H-87257”)
  • Filter: 3 micron in filling circuit, 6 micron in each low and high pressure circuit 25 micron in return (Option D)
Operating conditions:
  • Ambient temperature: -25 to +45 °C (-13 to +113 °F)
  • Noise emission: Electrical power supply: max. 75 dB(A) at 39.4 in (1m) distance
  • Diesel power supply: approx. 84 dB(A) at the operating Panel (at 2200 rpm, approx. 50 USgpm, 3,000psi)
Dimensions and empty weights:

Assembly 1: 5,000 psi - HGPU60-50-1:

Length: 3,950 mm (13,0 ft); Width: 1,800 mm (5,9 ft); Height: 1,700mm (5,6 ft); Weight: 2,900 kg (6400 lb)

 

Assembly 2: 3,000 psi - HGPU50-30-1; HGPU30-30-2

Length: 3,800 mm (12,5 ft); Width: 1,800 mm (5,9 ft); Height: 1,700 mm (5,6ft); Weight: 2,500 kg (5,500 lb)

 

Assembly 0: Diesel units - HGPU50-30-1; HGPU60-50-1

Length: 4,600 mm (15,1 ft); Width: 1,800 mm (5,9 ft); Height: 2,100 mm (6,9 ft); Weight: 3,200 kg (7,050 lb)

 

Unit Types
Aircraft System Type Engine System Flow (USgpm)* Motor (kW)
3000 psi HGPU50- 30-1 Electric or Diesel Single 50 75 - Electric / 114 - Diesel
3000 psi HGPU30- 30-2 Electric Dual (Independent) 2 x 30 2 x 45
5000 psi or 3000 psi HGPU60- 50-1 Electric or Diesel Single 60 132 - Electric / 173 - Diesel

 

Other Versions possible

* The specified values are based on the nominal flow at 50Hz supply, the values are proportionately higher at 60 Hz.

Anwendungen

All usual civil passenger aircraft - depending on the ordered coupling kits.

 

OEM Aircraft
Airbus

A220, A300, A310, A320, A330/ 340, A350, A380

Boeing

B737, B747, B757, B767, B777, B787

Embraer

ERJ135/ 145, E-Jets

Bombardier CRJ Series (C-Series)
Antonov

AN124, AN148

Sukhoi SuperJet 100
Irkut MS21

 

Zubehör

Different coupling kits

Eigenschaften

  • Electric or Diesel power
  • Single or dual circuit
  • Easy pressure control using the 0psi, 3,000 psi / 5,000 psi push buttons as applicable
  • The stainless steel hydraulic reservoir has a capacity of 240 l (63 USgal)
  • Hydraulic reservoir selection (A/C or HGPU) via illuminated buttons on the control panel
  • Very suitable hydraulic supply for “Ram Air Test Ground Checks” (together with the Airbus certified RAT Tester P/N PGRAT 1, P/N RATMK, P/N RATMK 350, P/N RATMK 380)
  • Automatic over temperature shutoff feature at 70 °C (160 °F)
  • Ramp function for soft pressure build-up
  • Pressure and flow rates are infinitely variable and limitable
  • Easy draining and filling of the aircraft reservoirs is carried out by ”Fill”/ ”Drain” push buttons
  • Two large fan operated oil-air coolers ensure optimum cooling
  • Easy access is provided by the hydraulically operated cover
  • Free from Skydrol vapours
  • Automatic over-temp protection
  • Separate low pressure circuit for anti-cavitation
  • Entire life cycle support and spares
  • Special low pressure circuit guarantees constant cleaning and cooling of hydraulic medium
  • Simple but sophisticated design
  • Waterproof cover made of GRP, Skydrol resistent
  • OEM quick disconnect couplings available
  • Change the filter only upon indication
  • Customer specific color options
  • Maximum towing speed is 15 mph (25 km/h)
  • Dual system without a transfer gear box (to prevent the possibility of hydraulic/lubricating oil contamination)
  • Phospate-Ester Hydraulic Oil (”Skydrol” or ”Hyjet”) or Mineral Oil based Hydraulic Oil (”MIL-H-5606”, ”MIL-H-83282”, ”MIL-H-87257”)

Optionen

Description

Flow measurement with digital indicator:

  • Single system 2 to 66 USgpm (10 to 250 l/min), ±1% of full scale
  • Dual System (independent) 1.3 to 42 gpm (5 to 160 l/min), ±1% of full scale
Flushing circuit with loading system
Filter (25 micron) in the return line
Sampling points
Comfortable filling neck outside of the housing
External filling level indication
180 degree swivel adapters
PLC operation
IoT gateway

 

Benefits

  • User friendly ergonomic setup and operation
  • Worldwide support locations
  • Expert support
  • On-hand spares
  • Extended warranty
  • Fleet support programs available
  • Easy calibration
  • World-wide universal connection (compatible with multiple voltages)
  • For hangar and outdoor usage
  • Certified for all Airbus aircraft as well as B737 and B787
Hydro Weltweit
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    Singapur

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    Tokyo

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