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1/2/3/4 GPM Hydraulic Tandem Gear Pump, 3600 psi

5 out of 5 based on 2 reviews | Write a review

$353.69

Hydraulic tandem gear pump has double working pump. Optional displacement 1/2/3/4 Max. GPM, rated pressure 3000 psi, max 3600 psi, rated speed 1800 rpm, max 4300 rpm, volumetric efficiency 88~91%, mechanical efficiency 85~88%, oil inlet/outlet ports 3/8 inch thread, clockwise/counterclockwise rotary. 2-stage hydraulic gear pump for sale online, good price.

Front Pump Displacement (Max. GPM) *
Rear Pump Displacement (Max. GPM) *
Rotary Direction *

SKU: ATO-HTGP-1245

Qty:

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Delivery date: 6-12 days

Overview

Buy hydraulic tandem gear pump from ideal manufacturer. Displacement 1/2/3/4 Max. GPM for selection, working pressure 3000~3600 psi, speed 1800~4300 rpm, clockwise or counterclockwise rotary is available. 2-stage hydraulic gear pump has double pump, the front and rear gear pumps work independently of each other, and any combination of displacements can be customized according to requirements.

Specification

Model	ATO-HGP-11A
Displacement	mL/ rev
	0.8	1	2	3	4	5	6	8
	Max. GPM (Gallon/min)
	0.4	0.5	1.0	1.4	1.9	2.4	2.9	3.8
Rated Speed	1800 rpm	1800 rpm	1800 rpm	1800 rpm	1800 rpm	1800 rpm	1800 rpm	1800 rpm
Max. Speed	4300 rpm	4300 rpm	4300 rpm	4300 rpm	3200 rpm	3200 rpm	3200 rpm	3200 rpm
Min. Speed	1000 rpm	1000 rpm	1000 rpm	600 rpm	600 rpm	600 rpm	600 rpm	600 rpm
Rated Pressure	3000 psi (21 MPa)
Max. Pressure	3600 psi (25 MPa)
Volumetric Efficiency	88%	88%	88%	91%	91%	91%	91%	91%
Mechanical Efficiency	85%	85%	85%	88%	88%	88%	88%	88%
Inlet Thread	PT 3/8"							PT 1/2"
Outlet Thread	PT 3/8"
Rotary Direction	clockwise, counterclockwise
Working Temperature	-20℃~70℃
Mounting Flange	SAE 2-bolt

Note:

Please use ATO gear pump with sufficient oil, otherwise there is a risk of burnout!
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.

1/2/4/5 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)
3.8	0.4	147.5	45.5	67	2.1
2.9	0.4	141.5	42.5	64	2.0
2.4	0.4	137.5	40.5	62	1.9
3.8	0.5	149.5	45.5	68	2.1
2.9	0.5	143.5	42.5	65	2.0
2.4	0.5	139.5	40.5	63	1.9
3.8	1.0	152.0	45.5	69.5	2.2
2.9	1.0	146.0	42.5	66.5	2.1
2.4	1.0	142.0	40.5	64.5	2.0
3.8	1.4	157.5	45.5	72	2.3
2.9	1.4	151.5	42.5	69	2.2
2.4	1.4	147.5	40.5	67	2.1
0.4	0.4	121.5	32.5	54	1.6
0.5	0.5	125.5	33.5	56	1.7
1.0	1.0	130.5	34.8	58.5	1.8
1.4	1.4	141.5	37.5	64	2.0
1.9	1.9	146.5	38.5	66	2.0
2.4	2.4	153.5	40.5	70	2.1
2.9	2.9	161.5	42.5	74	2.3
3.8	3.8	173.5	45.5	80	2.5

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

Details

1/2/4/5 GPM Hydraulic Single Gear Pump Details

Tips: Why does hydraulic tandem gear pump wear out?

The hydraulic tandem gear pump shell wear is mainly due to the wear of the floating shaft sleeve hole. The normal clearance between gear shaft and shaft sleeve is 0.09~0.175mm, and the maximum should not exceed 0.20mm. When the gear is working, under the action of pressure oil, the tip of gear is close to the hydraulic pump housing, which wears the low pressure cavity part of pump body. The other type of wear is the wear of the working surface in the housing in a circle. This wear is mainly due to the dirty oil added, so hydraulic oil without impurities must be added.

Existing reviews of 1/2/3/4 GPM Hydraulic Tandem Gear Pump, 3600 psi

I need a water pump

Do you have a water pump with a pressure of 2000 psi and a flow rate of 10 gpm?

From: Quera | Date: 05/06/2025

Was this review helpful? Yes No (0/0)

ATO Responded

We need other information to give you a recommendation. What type of water pump do you need? Is the water pump required to be a submersible pump? What is the power and voltage of the water pump? What head is required? You can refer to the water pump products on our website: https://ato.laisteel.com/pumps

Awesome gear pump!

I bought this hydraulic gear pump because of its compact structure and good quality. After receiving this product, I found that the components of this gear pump are well made and this ensures the mechanical efficiency when I use it. It also works reliably and has high volumetric efficiency. Also, it is small in size and light in weight. I am very pleased with its well-done job in my application.

From: Rex | Date: 22/07/2021

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