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Hangzhou Youshan Fine Workmanship Machinery Co., Ltd.

Tensioning Device, Hydraulic Pump, Electric Pump manufacturer / supplier in China, offering High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot, 650 Ton Capacity (Load) Hydraulic Jack, 80 Ton Air Hydraulic Jack (JR80-1) and so on.

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High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot

Purchase Qty.:
1-2 3+
FOB Unit Price: US $570 US $550
Purchase Qty. (Pieces) FOB Unit Price
1-2 US $570
3+ US $550
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Production Capacity: 100000 Sets/Year
Transport Package: Wooden Cases
Payment Terms: L/C, T/T, D/P, Western Union, Paypal

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Basic Info
  • Model NO.: ZB4-500
  • Type: Handheld
  • Trademark: OLM
  • Origin: Liuzhou, China
  • Pressure Medium: Oil
  • Certification: CE
  • Specification: 460*360*560mm
  • HS Code: 8412299090
Product Description
Product Description

Usage & Feature:

ZB4-500  electric oil pump  is  the power  resource and  control device  for wire  tension, 
which is used in conjunction with various jacks(Nom. pressure 50MPa),as  well as other low flow or  high pressure  hydraulic equipments.  ZB4-500s electric  oil pump  is based  on ZB4-500.  It  features  trinity  3-way  valve, simultaneous  operation  of  tensioning  and  pressing.

             High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot

Specifications: ZB4-500 Hydraulic pump, ZB2-500 Hydraulic pump

    High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot


ZB4-500 electric  oil pump  consists of pump,  control valve,  cabinet, and internal  pipes.

                          High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot
                                         -----------------P1 hydraulic system----------------
1. The device is a self-priming axial plunger pump. When motor drives axis9, leaned tray will push the plunger into plunger sleeve, and return spring raises the plunger. The plunger repeats the operation to meet the function of in-taking and out-putting oil.

            High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot
                         P2 Pump Structure

2. The  left and  right valve  bodies  which are  the same  structure constitute  the pump. Each  valve body  consists of  throttle  valve, unload  valve,  one-way valve,  pressure  meter,relief valve, intake nozzle, output nozzle and oil-return nozzle.  (P3)

The throttle  valve is  a tunable wedge  valve used  to adjust input  flow of  the cylinder.The unload valve is a kind of tunable globe valve(open---unload,  close---intake oil). The one-way  valve of  ball  type  stabilizes the  pressure  of  working  system. The  relief  valve  is  a tunable overflow valve used to adjust the system pressure of 50MPa.

            High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot
                                    (P3) Control Valve Structure

Using & maintenance:

1.Use  #46 oil, keep  it clean, filter  it frequently,  and replace it  regularly. The  height of oil in the  cylinder is 150-200mm.  To assure the  function of greasing,  the oil level  mustn'be lower than 150mm, and the temperature  mustn't be higher 60ºC.

2.  Operating for the first time
Before operation,  air exists in each  oil container, please  open the control  valve, idle the oil pump, expel the air till bubbles in oil-return hose vanish.

3.  Relief valve adjustment
Seal the output nozzle, open the throttle valve, close the unload valve. Then switch the pump,close the throttle valve, and read the pressure meter as well as adjust the unload valve till designed pressure. The adjusting pressure of relief valve is 10%-15% higher than working pressure.

4. Pressure meter check-out
To  assure the  quality  of  operation  and accuracy  of  measurement,  check  the pressure meter as the regulation.


High-Pressure Electric Hydraulic Pump (ZB4-500) Have Spot

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