A4VTG Series Variable Displacement Piston Pump

3 week ago

0 0 

3 year

Product details

I. Product Overview

TheA4VTG Series Variable Displacement Axial Piston Pumpis a swashplate-designed pump primarily used in closed-loop hydrostatic transmission systems. It is widely applied in mobile concrete mixers, tractors, construction machinery, metallurgical equipment, mining machinery, marine vessels, forging presses, and other industrial sectors.

------

II. Core Features

1. Flow Adjustment

• Flow rate is proportional to drive speed and displacement.

• Smooth flow increase from zero to maximum via swashplate angle adjustment.

• Seamless flow direction reversal when the swashplate passes through the neutral position.

2. Pressure Protection

• Two pressure relief valves are installed at the high-pressure port to prevent overload in hydrostatic systems (pump and motor).

• The high-pressure relief valve doubles as a charge pressure valve.

3. Integrated Charge Pump

• Serves as both a feed pump and control pressure source.

• Maximum charge pressure is limited by a built-in charge pressure relief valve.

4. Control Options

• HW: Hydraulic proportional control with mechanical servo and rear lever (hexagonal shaft).

• EP: Electric proportional control with emergency manual override and spring return.

------

III. Technical Specifications

• Model Examples: A4VTG71, A4VTG90

• Displacement:

• A4VTG71: 71 cm³/rev

• A4VTG90: 90 cm³/rev

• Pressure Ratings:

• Rated Pressure: 5,800 psi (400 bar)

• Maximum Pressure: 6,500 psi (450 bar)

• Speed Ratings:

• Maximum Continuous Speed:

• A4VTG71: 3,300 rpm

• A4VTG90: 3,050 rpm

• Maximum Limited Speed:

• A4VTG71: 3,600 rpm

• A4VTG90: 3,300 rpm

• Intermittent Maximum Speed:

• A4VTG71: 4,100 rpm

• A4VTG90: 3,800 rpm

• Minimum Speed: 500 rpm

• Flow Rates:

• Continuous Flow (Max Displacement):

• A4VTG71: 234 l/min

• A4VTG90: 275 l/min

• Power Ratings:

• Continuous Power (400 bar):

• A4VTG71: 156 kW

• A4VTG90: 183 kW

• Torque Ratings:

• At Max Displacement (400 bar):

• A4VTG71: 451 Nm

• A4VTG90: 572 Nm

• At 100 bar:

• A4VTG71: 112.8 Nm

• A4VTG90: 143 Nm

• Physical Dimensions:

• Packaging Size: 40.00 cm × 50.00 cm × 60.00 cm

• Gross Weight: 45.00 kg (A4VTG71), 8,000.00 kg (bulk)

------

IV. Applications

1. Mobile Concrete Mixers

• Drives the mixing drum with precise flow and direction control.

2. Construction & Engineering Machinery

• Suitable for hydraulic systems requiring variable displacement and high pressure.

3. Other Industries

• Metallurgy, mining, marine vessels, forging presses, and hydrostatic transmission systems.

------

V. Advantages

• Energy Efficiency: Matches flow to load demands, reducing energy waste.

• Precision Control: Supports hydraulic and electric proportional control for complex operating conditions.

• High Reliability: Integrated pressure protection and charge functions extend system lifespan.

• Versatility: Designed for closed-loop systems, supporting high-pressure and variable-speed applications.

You May Also Like

1636

Stationary scissor lift

1177

PSA Oxygen Plant Containerized

1020

Semi Double Scale Weight Packing Machine.mp4

1018

Stand up zipper bag making machine

640

Tea bag packing and boxing .mp4

629

401-00060C K3V112DT-HNOV 2401-9158 K3V112DTP Hydraulic Main Pump For Doosan DX210W-7 DX220W-7 Excavator1

627

Cashew vacuum packing machine

612

50-250PVC给水管或者PVC排水管生产线都可以.mp4

612

High Speed Multifunction Bag Making Machine

599

Granule packing machine for 4 side sealing bag

Bossgoovideo.com Contact Now

If you are interested in the product, contact Bossgoovideo.com for more information

*To:: Ningbo Hengnuo Hydraulic Drive Co.,Ltd

*Message:

Submit

 Disclaimer :

The information of Bossgoovideo.com limited shown above is provided by the user or collected on the network. Video 2B does not guarantee the authenticity,accuracy and legitimacy of Bossgoovideo.com limited information. Video 2B does not involve legal relationships and disputes between users arising from transactions other than secured transactions on this website. Disputes shall be settled by you through negotiation. If you are the person in charge or relevant employee of this enterprise, if you find that the enterprise information is incorrect or want to manage thiscompany, please contact us jacklee1558@gmail.com, after you claim the enterprise, you can obtain management permission, publish supplyand demand information, bring consulting orders, and remove page advertisements.

Suppliers

Ningbo Hengnuo Hydraulic Drive Co.,Ltd

Audited supplier

3 year

Main Product: hydraulic motor, gear box, hydraulic pump, hydraulic valve , hydraulic winch, hydraulic system

Contact now