Single acting air-hydraulic pumps with pedal operation and 350bar-HP350

The HP350 air-hydraulic pump is a single-acting pedal operated pump with an oil flow rate of 0,5 l/min at 350bar of working output pressure.

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Description

The HP350 air-hydraulic pump is a single-acting pedal operated pump with an oil flow rate of 0,5 l/min at 350bar of working output pressure

Like all the pumps of the HP Series, it is suitable for any hydraulic application which require very high hydraulic output pressures and a moderate and controllable oil flow, to ensure the best precision during the operations.
Suitable for use in multiple applications: industrial tools, lifting systems, car repair, clamping systems, hydraulic equipment (presses, jacks, …), tire changers, bead breakers, automotive.

Single acting air-hydraulic pump with pedal operation 350bar-HP350: main features

  • Operated through pedal
  • Unmistakable pedal design with handle for portability 
  • 3-position pedal operation with spring return (advance, hold and return)
  • Single-acting cylinder compatibility (double-acting with optional in-line distributor)
  • Compact and sturdy construction for heavy duty and long life
  • Easy maintenance
  • No air lubricated required
  • Connectable to the normal pneumatic network
  • Versatile use in both horizontal and vertical positions
  • Helical vent screw on the lid for tank ventilation during use
  • Preset safety valve on the cover against any overload in the pump
  • Externally adjustable oil pressure relief valve against any overload 
  • Rotating oil port for easy connection to the hydraulic system and improved mobility 
  • Slots on the base support for easy installation and fixing to the system
  • Lightweight
  • Low noise (80dBa)
  • 1.4 L tank capacity for small and large cylinders (other versions available SL 2.5l and XL 4L)

Single-acting air-hydraulic pump with pedal operation 350bar-HP350: Technical features

Max working pressure (bar): 350
Compatibility: Single acting
(Double acting through optional valve)
Oil tank capacity (L): 1,4
Usable oil (L): 1,1
Max oil flow at nominal pressure (l/min): 0,5
Oil flow unload (l/min): 2,4
Oil flow with load (l/min): 0,5
Oil ports: 3/8”NPTF (G3/8” – G1/4”)
Valve function: Delivery/Hold/Release
Valve operation: Manual
Supply: Air
Pneumatic range (bar): 3/9 (10 max)
Average air consumption (Nl/min):
Air port: G1/4”
Noise (dBA): 80
Weight (kg): 5,3

Size

dimensioni Pompe pneumoidrauliche semplice effetto con azionamento a pedale

For applications or equipments which require large oil capacities, the HP pump can be equipped with large capacity steel oil tanks (2.5 L the SL-type and 4L the XL-type)
Thanks to the choice of making the oversized oil tanks in steel rather than in the same material as the standard 1.4 liter oil tank, any possible oil leaks – from the gasket between the oil tank and the lid – due to an huge and quick return of oil were prevented.
Any other higher oil capacity can be required.

Hydraulic scheme

schema idraulico pompe serie HP

Series comparison

Accessories

  • Pedal protection kit
  • Oversized tanks SL / XL
  • Delivery valve straight fitting
  • Hose Flex
  • In line hand valve for double acting cylinders

Spare Parts

  • SEAL KIT HP350

All BELL products are designed and manufactured within BELL SRL in via F. De Pisis, 5 – 42124 Reggio Emilia (RE) – Italy, according to the Quality Standards that distinguish the MADE IN ITALY from the Rest of the World.