In general working conditions, inlet and outlet pressure of hydraulic motor is higher than atmospheric pressure, so there is no suction energy problem like hydraulic pump. However, if the hydraulic motor is operating under pump conditions, its oil inlet should have a minimum pressure limit to avoid cavitation.
Part Name: Piston Motor
1. High torque low speed fixed displacement radial piston hydraulic motors
2. Consists of 13 frame sizes ranging ,capacity ranges from 50 to 11,600cc/rev.
3. The rugged, well proven design incorporates high efficiency, combined with good breakout torque and smooth running capability.
4. Deneng also produce dual and continuously variable displacement motors.
1. High torque at low speed.
2. High efficiency.
3. Smooth running.
4. Wide range of displacements to suit specific applications.
5. Displacements change with ease when the motor is running.
6. Electro-hydraulic or hydro-mechanical control methods available.
7. Various mounting options available
Speed range rpm
Unit theoretic torque
Working characteristics of hydraulic motor:
(1) In general working conditions, inlet and outlet pressure of hydraulic motor is higher than atmospheric pressure, so there is no suction energy problem like hydraulic pump. However, if the hydraulic motor is operating under pump conditions, its oil inlet should have a minimum pressure limit to avoid cavitation.
(2) Motor should be able to run forward and backward. Therefore, hydraulic motors are required to have structural symmetry when designed.
(3) Actual working pressure difference of hydraulic motor depends on the magnitude of load torque, when the driven load has a large moment of inertia, high speed, and requires rapid braking or reversal will produce a higher hydraulic impact, for this reason, safety valve and buffer valve should be set in the system.
(4) As internal leakage is inevitable, there will still be a slow skid when braking by closing the oil discharge port of the motor. Therefore, when precise braking is needed for a long time, a brake to prevent skid should be set separately.
(5) Some forms of hydraulic motors must have enough back pressure at the oil return port to ensure normal operation, and the higher the speed, the greater the back pressure is required, the higher the back pressure means the low utilization rate of oil source pressure, and the large loss of the system.
1. We offer 24 hour online technical support to help our customer choose the pump they need and solve any techincal problem occured when using the pump.
2. We offer 18 month warranty time for our hydraulic pump. Should any quality problem occurs during warranty time, we will provide spare parts to our customers for charge free.
1. We use wooden case that can endure long time sea shipment. Our package can prevent products from damaged during shipment at maximum extent.
2. We also have professional forwarder who not only offer competitive price in freight but also provide fast custom clearance service to our customers.
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