11/13/18/20 GPM Hydraulic Tandem Gear Pump, 3600 psi

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

$474.31

Buy hydraulic tandem gear pump from manufacturer online. Displacement 11/13/18/20 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.

SKU: ATO-HTGP-1380

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

Qty:

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Delivery date: 6-12 days

Overview

High efficiency hydraulic tandem gear pump for sale. Displacement 11/13/18/20 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)
	5.5	7.7	8.7	11	13	15.2	18	20	22	23.7
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
Shaft Extension	φ 17.48mm flat key
Mounting Flange	SAE 2-bolt

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 11/13/18/20 GPM Hydraulic Tandem Gear Pump, 3600 psi

Front Pump Displacement (Max. GPM)	Rear Pump Displacement (Max. GPM)	A (mm)	B (mm)	C (mm)	Weight (kg)
23.7	5.5	214.5	70.0	90	5.2
22	5.5	210.5	68.0	88	5.1
20	5.5	206.5	66.0	86	5.0
23.7	7.7	217.5	70.0	91	5.3
22	7.7	213.5	68.0	89	5.2
20	7.7	209.5	66.0	87	5.1
23.7	8.7	223.5	70.0	93	5.4
22	8.7	219.5	68.0	91	5.3
20	8.7	215.5	66.0	89	5.2
5.5	5.5	174.5	50.0	70	4.1
7.7	7.7	180.5	51.5	73	4.3
8.7	8.7	191.5	54.0	79	4.5
11	11	202.5	57.0	84	4.7
13	13	210.5	59.0	88	4.9
15.2	15.2	218.5	61.0	92	5.1
18	18	232.5	65.0	99	5.3
20	20	238.5	66.0	102	5.9
22	22	246.5	68.0	106	6.1
23.7	23.7	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.

Tips: Reasons for insufficient oil or no oil pressure of the 20 GPM hydraulic tandem gear pump.

Oil level of the hydraulic oil tank in 20 GPM hydraulic tandem gear pump is too low.
The use of hydraulic oil does not meet the seasonal requirements.
The oil inlet pipe of 20 GPM hydraulic tandem gear pump is seriously blocked by dirt.
Oil seal of the main gear of 20 GPM hydraulic tandem gear pump is damaged, and air enters the hydraulic system.
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.
The 20 GPM hydraulic tandem gear pump has internal leakage and the sealing ring is aging.
End face of the 20 GPM 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.
20 GPM hydraulic tandem gear pump internal parts assembly error, causing internal leakage.
Left-handed and right-handed installation reversed, breaking the skeleton oil seal.

Existing reviews of 11/13/18/20 GPM Hydraulic Tandem Gear Pump, 3600 psi

Running smoothly

I use this 3600 psi hydraulic tandem gear pump on a daily basis due to my job. It runs smoothly as described on the product page and can work in harsh environments. I am very happy to buy it at ATO.com.

From: Maks | Date: 22/07/2021

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Would this hydraulic tandem gear pump survive in a project that runs at 3400-3600rpm most of the time?

Would this hydraulic tandem gear pump survive in a project that runs at 3400-3600rpm most of the time?

From: Tamire | Date: 27/03/2023

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ATO Responded

We do not recommend running the pump at 3600 rpm, because too fast a speed will cause wear, which will affect the service life of the pump. We suggest that the speed of the pump should be controlled at around 2000rpm is the best.

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