Marine Hydraulic Pump For Sale

The role of a marine hydraulic pump is to provide the hydraulic system with a certain pressure and flow of oil. From the point of view of energy conversion, it is an energy conversion component in hydraulic system that converts mechanical energy into hydraulic energy.

Top Hydraulic Pump Manufacturers

Gosea Marine is a hydraulic pump supplierwe provide maintenance and repair services of hydraulic pump for boat motor, along with corresponding alternatives. Here are some well-known brands and series that we offer repair and replacement services for:

  1. Kawasaki: K3VL, K3VG, M3X53 series marine hydraulic pump
  2. Danfoss hydraulic pump: 90L, 90R, 90M series, and controllers.
  3. Rexroth: A4VG, A6VG, A10VG45 series and so on.
  4. Eaton : MB350, ME350, and other series.
  5. IHI: HVLG-DSS series boat hydraulic pump.

Rexroth Hydraulic Pump For Ship Motor

The Rexroth A4VG marine hydraulic pump is a swash plate axial piston variable displacement pump designed for static hydraulic transmission closed circuits in the maritime industry. With its proportional flow rate based on driving speed and displacement, it offers precise control. The pump’s complex structure and integration of multiple hydraulic control valves prevent overloading. It is a reliable and efficient power component for marine applications, available in various sizes from A4VG 28 to A4VG 280.

The Rexroth A10VG is a variable axial piston pump designed for hydrostatic closed circuit transmissions. It offers infinitely variable drive speed and displacement proportions, smooth flow direction changes, and built-in pressure relief valves for overload protection and boost functionality.

Parameter of partly Rexroth Hydraulic  Pump

Model

Series

Type

Pressure

Available Size

Rated

Peak

A4VG

40

axial piston variable pump

450

500

110-280

A4VG

32

axial piston variable pump

400

450

28-125

A4VTG

33

axial piston variable pump

400

450

71-90

A4FO

axial piston fixed pump

400

450

22-28

A4FO

axial piston fixed pump

350

400

71-500

A10VSO

31

axial piston variable pump

280

350

18-140

A10VG

45

axial piston variable pump

300

350

18-63

A11VLO

40

axial piston variable pump

350

420

110-280

A7VK

10

axial piston variable pump

250

315

12,28,55,107

PV7

1X/2X

variable vane pump

100

10-25

Kawasaki Hydraulic Pump

  • The model we supply: K3SP36, K3VG, K3VL, K3V, K5V

Kawasaki K3VL Hydraulic Pump

Kawasaki K3VL Hydraulic Pump Parameter

Model

Displacement

Pressure

Speed

Weight

psi

bar

rpm

cm3

in3

Rated

Peak

Rated

Peak

Self Prime

Max

lb

kg

K3VL28

28

1.71

4600

5075

320

350

3000

3600

44

20

K3VL45

45

2.75

4600

5075

320

350

2700

3250

55

25

K3VL60

60

3.66

3625

4060

250

280

2400

3000

55

25

K3VL80

80

4.88

4600

5075

320

350

2400

3000

77

35

K3VL112

112

6.83

4600

5075

320

350

2200

2700

143

65

K3VL140

140

8.54

4600

5075

320

350

2200

2500

143

65

K3VL200

200

12.20

5075

5800

350

400

1900

2200

209

95

K3VL200H

20

12.20

5075

5800

350

400

2200

2200

269

122

The K3VL series of swash plate type axial piston pumps, manufactured by Kawasaki, is purpose-built to meet the demands of marine applications requiring a medium to high pressure variable displacement pump. It offers a range of displacements from 28cc to 200cc, a continuous pressure rating of 320 bar, and advanced features such as load sensing, torque limiting, and electronic displacement control. The 200cc unit also features an integral impellor pump for enhanced functionality.

Danfoss Hydraulic Pump

  • The model we supply: series 90 include 90L, 90R and 90M

Danfoss series 90 hydraulic pump

The Series 90 Danfoss hydraulic pumps feature a parallel axial piston/slipper design with a tiltable swashplate, allowing for variable displacement and compact size with high power density. By adjusting the swashplate angle, the pump’s displacement can be varied, enabling control over the flow of oil and the direction of rotation of the motor output.

Danfoss Series 90 Hydraulic Pump Parameter

Feature

Unit

90R030

90L030

90R042

90L042

90R055

90L055

90R075

90L075

90R100

90L100

90R130

90L130

90R180

90L180

90R250

90L250

Displacement

cm3/rev

30

42

55

75

100

130

180

250

in3

1.83

2.56

3.35

4.57

6.1

7.93

10.98

15.25

Input speed

Minimum

min-1(rpm)

500

500

500

500

500

500

500

500

Rated

min-1(rpm)

4200

4200

3900

3600

3300

3100

2600

2300

Maximum

min-1(rpm)

4600

4600

4250

3950

3650

3400

2850

2500

Max. Attainable

min-1(rpm)

5000

5000

4700

4300

4000

3700

3150

2750

Theoretical

Nm/bar

0.48

0.67

0.88

1.19

1.59

2.07

2.87

3.97

Torque

in lb/1000 psi

290

410

530

730

970

1260

1750

2433

Mass moment of inertia of the int. rotating parts

kg m2

0.0023

0.0039

0.006

0.0096

0.015

0.023

0.038

0.065

lb ftn2

0.0546

0.0926

0.1424

0.228

0.358

0.546

0.902

1.543

Weight (with MA  control)

kg

28

34

40

49

68

88

136

154

lb

62

75

88

108

150

195

300

340

Best Marine Hydraulic Pump Supplier

Since our establishment, our company has been focusing on manufacturing, installation, and technical consulting of marine pumps. We have an excellent team, advanced equipment, and rich experience in this field. Additionally, we offer professional testing services to ensure the quality of our hydraulic products. 

At our company, we are committed to providing superior service to our customers around the world. Our primary goals are to offer fast and accurate quotations, timely delivery, low prices, and high-quality hydraulic products. We strive to provide better hydraulic products and more efficient services to our valued customers.

We sell the ship hydraulic pump categories are K3VL series, hydraulic plunger pump, MG Series, MB350 series, A10VG series, K3VL series, DGM series, SH6V130 series, SH6V1301 series, and MKV series hydraulic pump.

Boat Hydraulic Pump Types

There are many types of Marine hydraulic pumps, according to their structure can be divided into gear pump (external engagement type, internal engagement type including rotor type), blade pump (single action type, double action type), screw pump and piston pump (straight axis or oblique axis, axial piston pump, radial piston pump).

According to the displacement of the pump can be changed, It can be divided into the quantitative pump and the variable pump. The vane pump and plunger pump in the structure can achieve variables.

When the marine pump to a certain direction, the direction of the pump can change it called the variable pump, so the hydraulic pump for boat motor can also be divided into the directional pump and variable pump. Both the vane pump and plunger pump can achieve directional change.

Boat hydraulic pump is also called positive displacement pump because it works by the volume change of sealed working space.

Hydraulic Pump Working Principle

Boat hydraulic pump is a hydraulic component of hydraulic transmission to provide pressurized liquid. It is a kind of marine pump. Its function is to convert the mechanical energy of power machines (such as motors and internal combustion engines, etc.) into liquid pressure energy.

The CAM is driven by a motor to rotate. When the CAM plunger upward movement, the piston and cylinder formed by the sealing volume is reduced, oil extruded from the sealing volume, through the one-way valve to the place where you need to go. When the CAM rotates to the curve of the falling part, the spring forces the plunger down, the formation of a certain vacuum degree, the oil in the tank under the action of atmospheric pressure into the sealing volume.

The convex wheel keeps the plunger rising and falling, the sealing volume periodically decreases and increases, and the boat hydraulic pump keeps absorbing and discharging oil.

Instant Quote Online

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[86] 0411-8683 8503

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