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Sai Hydraulic Radial Piston Motors

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MOQ : 1 , , Number

Sai Hydraulic Radial Piston Motors Specification

Connectivity Type
Hydraulic Connections

Accessories
Standard Couplings, Hydraulic Fittings, Mounting Flanges

Mounting Type
Flange Mounted / Foot Mounted

Application
Winch Drives, Track Drives, Injection Moulding Machines, Marine, Industrial Machinery

Features
Compact Design, High Starting Torque, Reversible Rotation, Long Service Life

Sealing Type
Standard Hydraulic Seals

Power Source
Hydraulic Fluid

Flow Rate
Up to 350 L/min

Temperature Range
-20C to +80C

Operating Pressure
Up to 450 Bar

Efficiency
Up to 95%

Body Material
High Strength Alloy Steel

Type
Radial Piston Hydraulic Motor

Structure
Multiple Radial Pistons

Force
High Torque Output

Speed
Variable, Up to 2500 RPM

Voltage
Not Applicable (Hydraulic Operated)

Weight
Ranges from 30 kg to 400 kg (Model Dependent)

Maximum Starting Pressure
Up to 500 Bar

Displacement
Up to 15,000 cc/rev

Corrosion Resistance
Surface Treated for Harsh Environments

Motor Models Available
S5, S6, S7, S9 Series

Rotation Direction
Bi-Directional

Lubrication
Oil Splash/Pressure Feed

Maintenance
Low Maintenance, Easy Accessibility

Protection Grade
IP65

Cooling System
Optional External Cooling

Shaft Diameter
Up to 110 mm

Noise Level
Low Noise Operation (<75 dB)

Seal Material
Nitrile Rubber / Viton Available

Sai Hydraulic Radial Piston Motors Trade Information

Minimum Order Quantity
1 , , Number

Main Domestic Market
All India

About Sai Hydraulic Radial Piston Motors

We are suppliers of SAI HYDRAULIC MOTORS with the following features:

HIGH STARTING TORQUE

High starting torque efficiencies at high pressures
Less energy wastage and heat generation, fuel consumption reduction especially with frequent stopstart work cycles
Enables large obstacles and steep slopes to be overcome easily

2. WIDE SPEED RANGE

Wide specific speed ranges
Good low and high speed characteristics

3. HIGH VOLUMETRIC EFFICIENCY

Volumetric efficiencies in all operating conditions
Seal design ensures volumetric efficiencies not affected even if components become worn with use

4. CAVITATION RESISTANCE

Retaining force of piston retaining rings prevents separation of piston from the shaft
SAI design enables the motor to run without oil in the pistons

5. HIGH POWER DENSITY

High mechanical efficiencies combined with high pressure and high speed capabilities of motor results in high power output
Compact dimensions, higher precision and an extremely wide operating range for the machines

Superior Performance and Versatility

Sai radial piston motors offer high starting torque and variable speed, making them suitable for heavy-duty tasks such as winch drives and industrial machinery. Their reversible operation and robust build ensure reliable performance in both forward and reverse rotation, meeting various demanding requirements.

Built for Harsh Environments

Featuring surface-treated bodies for enhanced corrosion resistance, IP65 protection grade, and seals made from nitrile rubber or Viton, these motors are engineered to withstand harsh and challenging environments common in marine and industrial settings. Optional external cooling maximises lifespan during intensive use.

Efficient and Low Maintenance Design

Designed for easy accessibility and minimal maintenance, Sai motors provide high mechanical efficiency of up to 95%. Both oil splash and pressure feed lubrication options are available, contributing to a long service life and reduced operational downtime.

FAQ's of Sai Hydraulic Radial Piston Motors:

Q: How do Sai Hydraulic Radial Piston Motors achieve high torque output?

A: These motors utilise multiple radial pistons within their internal structure, distributing hydraulic pressure effectively to produce high torque, making them ideal for applications requiring significant force at low speeds.

Q: What processes are involved in maintaining these hydraulic motors?

A: Sai motors are designed with accessibility in mind, requiring only routine checks of oil levels, seal integrity, and occasional replacement of lubricants depending on operational intensity. Their low maintenance design helps reduce overall downtime.

Q: When is it beneficial to use the external cooling option?

A: External cooling is recommended during prolonged or high-pressure operations, such as continuous industrial tasks or high-load marine applications, to maintain optimal operating temperatures and prevent overheating.

Q: Where can these motors be installed and used?

A: They are suitable for diverse environments, including marine vessels, injection moulding machines, winch and track drives, and other heavy-duty industrial machinery, thanks to their corrosion-resistant and IP65-rated construction.

Q: What are the advantages of using nitrile rubber or Viton seals?

A: Nitrile rubber and Viton seals provide excellent resistance to hydraulic fluids and harsh chemicals, maintaining sealing integrity across a wide temperature range (-20C to +80C) and ensuring reliable, leak-free operation.

Q: How does the compact design benefit users?

A: The compactness allows for flexible installation in limited spaces while still delivering high power and efficiency, which is particularly useful in retrofitting existing systems or integrating into modern, space-sensitive equipment.

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