Spool and Sleeve
As the core control pair of hydraulic valves, spool and sleeve directly determine the control accuracy, response speed, internal leakage and service life of the entire hydraulic system. Our proportional valve spool & sleeve products adopt precision machining and heat treatment processes, with strict micron-level tolerance control, which can perfectly replace mainly international brand original parts, and support non-standard customization. They are widely used in industrial hydraulic pressure, engineering machinery, metallurgical equipment and other fields, helping to improve the stability and energy efficiency of hydraulic systems.
-
Introduction to Hydraulic Valve Block
Light weight, high strength, corrosion resistance and excellent heat dissipation. Precisely machined with smooth inner walls, it effectively reduces hydraulic resistance, avoids oil blockage and leakage, and adapts to high-frequency and high-strength working conditions.
Application: Widely used in engineering machinery, mining equipment, agricultural machinery, heavy industry equipment and hydraulic control systems. Suitable for earthwork construction, mining, field operation, industrial heavy load and other complex working scenarios.
Material: High-quality aluminum alloyMachining Requirements: Hole position accuracy ±0.01mm, flatness ≤0.02mm. Smooth inner oil passages.Degree of Difficulty: ★★★★★ -
Servo Valve Spool and Sleeve Assembly Cr12MoV
This servo valve spool and sleeve assembly is manufactured from high-quality Cr12MoV steel. It offers exceptional precision in coaxiality and cylindricity, with key positional accuracy down to 0.005 mm. Designed for precision control in servo systems, it guarantees minimal overlap, ensuring smooth and efficient operation.
Material: Cr12MoVCylindricity: 0.0015 mmDegree of Difficulty: ★★★★★ -
Proportional Valve Spool and Sleeve Cr12MoV
This proportional valve spool and sleeve is crafted from Cr12MoV steel, offering high precision in both coaxiality and cylindricity. With a coaxiality tolerance as low as 0.0015 mm and key positional accuracy of 0.005 mm, it ensures optimal performance and zero overlap, making it suitable for various precision fluid control applications.
Material: Cr12MoVCylindricity: 0.0015 mmDegree of Difficulty: ★★★★★ -
Regulator Spool and Sleeve 20CrMo, 15CrMo, 1215
This regulator spool and sleeve are designed for high-precision applications, crafted from 20CrMo, 15CrMo, and 1215 steel. The components feature a precise clearance fit, with surface roughness and roundness tolerances that ensure optimal performance in various regulator systems. With fine cylindrical and roundness tolerances, they guarantee superior operational reliability.
Material: 20CrMo, 15CrMo, 1215Cylindricity: 0.0015 mmDegree of Difficulty: ★★★★★ -
High Precision Valve Core and Valve Sleeve
The High Precision Valve Core and Valve Sleeve are essential components for high-performance fluid control systems. Manufactured from durable materials like 20CrMo, 15CrMo, and 1215, these components offer superior precision with tight clearance fits and low surface roughness.
Materials: 20CrMo, 15CrMo, 1215Cylindricity: 0.0015 mmDegree of Difficulty: ★★★★★ -
Non Standard Customized Spool
The Non-Standard Customized Spool is designed to meet specific requirements for unique applications. It offers tailored solutions with high precision, ensuring optimal performance in specialized hydraulic systems.
High PrecisionLong Service LifeDegree of Difficulty: ★★★★★
- 1
- 2
Core Advantages
Ultra-Precision Machining
Adopts centerless grinding and superfinishing for mirror-level fit, with roundness ≤0.0015mm, Ra≤ 0.2μm, and matching clearance 0.004~0.015μm.
Ultra-Low Internal Leakage
Leakage reduced by over 50% vs standard products, delivering strong pressure retention and lower system energy consumption.
High Wear Resistance & Long Service Life
Made of premium bearing steel/alloy steel with HRC58–62 hardness, anti-wear & anti-corrosion treatment, ensuring long lifespan equal to original brands.
Perfect Interchangeability
1:1 dimensional match with original parts, direct installation without modification, saving maintenance time and cost.
Customized Solutions
Supports non-standard customization per drawings, samples or parameters, including special sizes, materials and surface treatments.
Application Scenarios
Widely used in various hydraulic systems supporting various proportional valves, including:
Industrial Machinery
Injection molding machine, die-casting machine, hydraulic press, CNC machine tool
Engineering Machinery
xcavator, crane, pump truck, road construction machinery
Metallurgical Equipment
Rolling mill, forging machine, hydraulic control system
Marine & Wind Power
Marine hydraulic system, wind power yaw & pitch system
Test Bench & Automation
Hydraulic test bench, automatic production line, servo control system
FAQs
Why Choose Us?
-
High precision fit, low internal leakage, stable operation
-
Premium material, wear-resistant and long service life
-
Professional machining, strong interchangeability for easy maintenance
-
Excellent hydraulic performance, low pressure loss, fast response
-
Factory direct supply, cost-effective, on-time delivery
-
Strict quality inspection, reliable quality with after-sales support
Let’s Talk Together
Have questions or need assistance? Get in touch with us, and we’ll be happy to help!
