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11/12/13/14 GPM Hydraulic Tandem Gear Pump, 3600 psi

5 out of 5 based on 5 reviews | Write a review
$474.31
Buy hydraulic tandem gear pump from manufacturer online. Displacement 11/12/13/14 Max. GPM, working pressure 3000 psi, maximum 3600 psi, speed 1800~3500 rpm, volumetric efficiency 90~93%, mechanical efficiency 88~90%, oil inlet thread 3/4 inch, outlet 1/2 inch, clockwise/counterclockwise rotary. 2-stage hydraulic gear pump has double pump, affordable price, easy use.
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SKU: ATO-HTGP-1380
30-day Returns
Free Shipping
Delivery date: 6-12 days

High efficiency hydraulic tandem gear pump for sale. Displacement 11/12/13/14 GPM, rated pressure 3000 psi, maximum 3600 psi, rated speed 1800 rpm, maximum 3500 rpm, optional clockwise or counterclockwise rotary. The hydraulic double gear pump has 2 stage pumps, applications include industrial/agricultural/commercial machinery, construction machinery, environmental protection equipment, and chemical equipment, etc.

Specification

Model ATO-HGP-33A
Displacement mL/ rev
6 8.4 11 14.3 16.5 19.2 23 25 28 30
Max. GPM (Gallon/min)
2.9 4.0 5.2 6.8 7.8 9.1 10.9 11.9 13.3 14.3
Rated Speed 1800 rpm 1800 rpm 1800 rpm 1800 rpm 1800 rpm 1800 rpm 1800 rpm 1800 rpm 1800 rpm 1800 rpm
Max. Speed 3500 rpm 3500 rpm 3000 rpm 3000 rpm 3000 rpm 3000 rpm 3000 rpm 3000 rpm 3000 rpm 3000 rpm
Min. Speed 700 rpm 700 rpm 600 rpm 600 rpm 500 rpm 500 rpm 500 rpm 500 rpm 500 rpm 500 rpm
Rated Pressure 3000 psi (21 MPa)
Max. Pressure 3600 psi (25 MPa)
Volumetric Efficiency 90% 90% 93% 93% 93% 93% 93% 93% 93% 93%
Mechanical Efficiency 88% 88% 88% 88% 88% 88% 88% 90% 90% 90%
Inlet Thread 3/4 inch 1 inch
Outlet Thread 1/2 inch 3/4 inch
Rotary Direction clockwise, counterclockwise
Working Temperature -20℃~70℃
Shaft Extension φ 17.48mm flat key
Mounting Flange SAE 2-bolt

Note: 

  1. Please use ATO gear pump with sufficient oil, otherwise there is a risk of burnout!
  2. Calculate the actual displacement value according to the formula: Gallon/min=displacement (ml/rev)*rated speed 1800rpm/3785.41L (speed variation range 500rpm-3000rpm).

Features

  • Hydraulic tandem gear pump uses high-strength aluminum alloy shell and alloy steel hard gear transmission, which is light in weight and stable in transmission.
  • Installation of the hydraulic tandem gear pump is SAE 2-bolt standard flange. Input shaft connection is woodruff key. Connection type of the oil inlet and outlet ports is thread.
  • Hydraulic tandem gear pump has an automatic compensation mechanism for axial and radial clearances, which enables the oil pump to maintain high volumetric efficiency and high mechanical efficiency for a long time.
  • Hydraulic tandem gear pump uses SP gears, with small fluctuation, high pressure, low noise and stable performance.
  • Hydraulic tandem gear pump uses composite material bearings and high-performance sealing elements, has a small starting torque and good tightness, and can work efficiently under harsh working conditions.
  • The front and rear gear pumps work independently of each other, and any combination of displacements can be customized according to requirements.

11/13/18/20 GPM Hydraulic Tandem Gear Pump Dimensions Diagram (Unit: mm)

Dimensions of Hydraulic Tandem Gear Pump, 3600 psi

Front Pump Displacement (Max. GPM) Rear Pump Displacement (Max. GPM) A (mm) B (mm) C (mm) Weight (kg)
14.3 2.9 214.5 70.0 90 5.2
13.3 2.9 210.5 68.0 88 5.1
11.9 2.9 206.5 66.0 86 5.0
14.3 4.0 217.5 70.0 91 5.3
13.3 4.0 213.5 68.0 89 5.2
11.9 4.0 209.5 66.0 87 5.1
14.3 5.2 223.5 70.0 93 5.4
13.3 5.2 219.5 68.0 91 5.3
11.9 5.2 215.5 66.0 89 5.2
2.9 2.9 174.5 50.0 70 4.1
4.0 4.0 180.5 51.5 73 4.3
5.2 5.2 191.5 54.0 79 4.5
6.8 6.8 202.5 57.0 84 4.7
7.8 7.8 210.5 59.0 88 4.9
9.1 9.1 218.5 61.0 92 5.1
10.9 10.9 232.5 65.0 99 5.3
11.9 11.9 238.5 66.0 102 5.9
13.3 13.3 246.5 68.0 106 6.1
14.3 14.3 254.5 70.0 110 6.3

*Note: the dimensions of other displacement combinations will not be listed one by one. Please contact us for more information.

Details

11/13/18/20 GPM Hydraulic Tandem Gear Pump Details

Tips: Reasons for insufficient oil or no oil pressure of the hydraulic tandem gear pump.

  1. Oil level of the hydraulic oil tank in hydraulic tandem gear pump is too low.
  2. The use of hydraulic oil does not meet the seasonal requirements.
  3. The oil inlet pipe of hydraulic tandem gear pump is seriously blocked by dirt.
  4. Oil seal of the main gear of hydraulic tandem gear pump is damaged, and air enters the hydraulic system.
  5. O-ring of the oil inlet and outlet joints or elbow joints is damaged. The fastening bolts of the elbow joints or the oil inlet and outlet pipe nuts are not fastened, causing air to enter the hydraulic system.
  6. The hydraulic tandem gear pump has internal leakage and the sealing ring is aging.
  7. End face of the hydraulic tandem gear pump or end face of the main and auxiliary gear sleeves is worn, and the unevenness of the end faces of the two shaft sleeves is out of tolerance.
  8. The hydraulic tandem gear pump internal parts assembly error, causing internal leakage.
  9. Left-handed and right-handed installation reversed, breaking the skeleton oil seal.

Existing reviews of 11/12/13/14 GPM Hydraulic Tandem Gear Pump, 3600 psi
One question about hydraulic tandem gear pump
So the pressure regulators on the valves will have to be adjusted for the pump to produce? Just making sure I understand this so I do not damage the pump.
From: Hacoy | Date: 03/08/2023
Was this review helpful? Yes No (0/0)
ATO Responded
Yes, that's right. The pressure regulators on the valves can be adjusted for the pump to produce 3,000 psi, No problem.
What should I do next?
I received the hydraulic pump that I ordered and had it installed I am having a problem with it, it is only producing 2,000 psi and that was checked at the pump with a pressure gauge installed directly to pump. Please advice on what I should do next.
From: Hahn | Date: 02/08/2023
Was this review helpful? Yes No (0/0)
ATO Responded
If you want this tandem pump to produce a pressure above 2000PSI, you need to adjust the pressure regulator valve in the system to slowly increase the pressure. Because the pressure produced by the pump needs to be adjusted through the pressure regulating valve.
Can you three gear pumps in series of this size?
Can you three pumps in series of this size?
Rotation is CW.
From: Betty | Date: 06/06/2023
Was this review helpful? Yes No (0/0)
ATO Responded
Sorry, the ATO-HTGP-1380 pump with a flow rate of 23.7GPM cannot be customized as a 3-tandem pump.
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