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101S Series
Green Hydraulic
101S Series
Standard export carton/plywood case
YES
ISO9001 CE
1 set
Product Description
101S hydraulic steering unit is an upgraded integrated orbital steering unit for construction and agricultural machinery. It integrates safety valve, dual shock relief valves and charge valve into one body without any external valve blocks. Adopting standard international mounting structure and 6/7 tooth gerotor design, it is fully interchangeable with OSPC, BZZ and other mainstream steering units. It features compact structure, fewer leakage points and stable system performance.
Specifications
Applications
Light mining wheel vehicles, small port handling machines, small yacht auxiliary steering systems.
Factory&FAQ
101S Series Hydraulic Steering Unit are typically packaged securely to prevent damage during transit. The packaging includes:
Protective Wrapping: To safeguard the pump from environmental damage.
Custom Crates: For larger, heavier pumps, ensuring safe handling.
Documentation: Includes installation, maintenance instructions, and warranty details.
Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.
1. What is the 101S Series Hydraulic Steering Unit ?
All-in-one integrated valve assembly
Built-in safety relief valve, dual shock relief valves and charge valve inside one housing. No separate external valve blocks needed, cutting leakage points and simplifying piping installation.
Universal interchangeable mounting
Standard international flange and spline shaft, directly replaceable with OSPC, BZZ and Char Lynn steering units without mechanical modification.
Anti-kickback smooth steering
Low operation torque for flexible control. Internal check valve stops oil backflow to eliminate steering wheel rebound on bumpy ground.
Reliable emergency manual steering
The precision gerotor metering pair supports manual steering when hydraulic power fails, guaranteeing vehicle driving safety.
Wide displacement coverage
Displacements range from 50ml/r to 400ml/r, matching light to heavy-duty agricultural and construction equipment.
Stable and long service life
High-precision cast iron body and wear-resistant stator-rotor pair maintain high volumetric efficiency under continuous high pressure, with low vibration and noise.
Wide working adaptability
Stably operates at -20℃ to +80℃, compatible with ISO VG32/VG46 anti-wear hydraulic oil.
3. What is the working pressure range of 101S Series Hydraulic Steering Unit?
Maximum rated working pressure: 17.5 MPa (175 bar)
Adjustable setting range of main safety valve: 6.0 ~ 17.5 MPa
Dual shock valve pressure range for absorbing impact pressure: 12 ~ 23.5 MPa
Maximum allowable back pressure on T return port: 2.5 MPa (25 bar)
4. Can 101S Series Hydraulic Steering Unit replace other brands?
6. What is the typical speed range of 101S Series Hydraulic Steering Unit ?
Max allowable input rotating speed
Models with displacement ≤250 ml/r: 100 rpm
Large displacement models (280/315/400 ml/r): 75 rpm
Recommended normal operating speed: 20–80 rpm for smooth steering performance
7. Do you provide OEM or customized services?
OEM service
We can engrave your brand logo and part numbers on the valve housing, and customize color boxes and packaging with your brand design while keeping standard specifications unchanged.
Customizable options
Adjust preset pressure values of safety valves and shock valves, modify port sizes and spline shafts, develop special displacement models, and adjust internal valve combinations according to customer working conditions.
MOQ notice
Small MOQ is acceptable for regular OEM orders; special customized structures require negotiated minimum order quantity.
8. How can I get a quotation quickly
Please provide the following details:
Model or displacement
Working pressure
Speed
Quantity
We will reply within 12 hours with a competitive quotation.
101S Series Hydraulic Steering Unit are manufactured in compliance with international standards, ensuring high performance and reliability:
ISO 9001: Certified for quality management systems.
CE Certification: Ensures compliance with European safety, health, and environmental protection standards.
RoHS Compliance: Ensures the pump does not contain hazardous materials.
Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.
1.What's our advantages?
Factory established in 2005;
With a great deal of production experience;
80+ employees become the professional team;
Constant updated ERP system ensure efficiency of work;
Sophisticated equipment ehanced the accuracy of products;
Professional salesmen provide the greast service;
With a large number of famous customers all over the world;
Great after-sales service;
With the long term cooperation with famous logistics and express company in China,provide the better goods service.
Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.
Of course we can. Just send me your logo we can make it for you.
America(40.5%):USA, Canada, Argentina, Brazil
Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.
Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.
Others(5.8%).
The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems. 
The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions. 
