China Stator Tube Manufacturers and Suppliers - Factory Price Stator Tube

Cold Drawn Stator Tube | Providing the Core Power for High-Performance Motors and Hydraulic Systems

Hengtong Petroleum Machinery, China's leading precision tube manufacturing expert, sets a new standard with its Cold Drawn Bright Seamless Stator Tube, boasting an unmatched accuracy of ±0.05mm.

In today's rapidly developing industrial landscape, motor performance directly determines equipment efficiency and reliability. As the core pressure-bearing component and magnetic circuit carrier for brushless motors, servo motors, and hydraulic motors, the quality of cold drawn tubes is crucial. Leveraging nearly two decades of expertise in precision cold drawing technology, Hengtong Petroleum Machinery offers comprehensive high-performance cold drawn stator tube solutions, from material to finished product, ensuring a solid and reliable "heart" for your product.

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Why Choose Hengtong Cold Drawn Stator Tubes?

Unparalleled Dimensional Accuracy and Consistency
Our advanced cold drawing process ensures that the inner and outer diameter tolerances of the stator tubes are consistently controlled within ±0.05mm. This exceptional precision results in:

Perfect magnetic gap consistency: This ensures a uniform magnetic field, improving motor efficiency and torque output. Simplified assembly process: Precise dimensions enable smoother press-fitting of the stator core and magnets, reducing scrap and improving production efficiency.
Excellent concentricity: Ensures smooth motor operation, reducing vibration and noise.
Excellent internal surface finish: The inner surface of the Skived and roller burnished tubes directly contacts the rotor or piston, making its finish crucial. Our products' inner surfaces are honed or rolled to achieve an exceptionally smooth finish.
Reduced friction and wear: Extends the service life of electric and hydraulic motors.
Improved sealing performance: For hydraulic applications, a smooth inner surface provides a better seal and prevents internal leakage.
Reduced stress concentration: Improves component fatigue strength.

Excellent material performance and diversity: We use only top-quality steel and maintain a strict quality traceability system. High-Strength Materials: Hengtong offers a variety of carbon steel and alloy steel grades (such as 20, 45, and 42CrMo) with high yield strength and fatigue resistance, capable of withstanding extremely high internal pressures and torques.
Professional Material Certification: Materials comply with ASME, ASTM, and EN standards, and Material Quality Certification (MTC) is available.
Material Purity: Non-metallic inclusions are strictly controlled to ensure excellent processability and stable mechanical properties.

Customized Solutions
We understand that different applications have unique requirements. Therefore, we offer highly customized services:

Flexible Size Range: Outer diameters range from Φ50mm to Φ500mm, with wall thickness and lengths customizable to your drawings.
Heat Treatment: Hengtong offers heat treatments such as normalizing and quenching and tempering to meet your specific requirements for hardness, strength, and toughness.
Finishing Services: We offer post-processing services such as cut-to-length, chamfering, straightening, phosphating, and oiling, resulting in ready-to-use finished pipes.

Technical Specifications at a Glance

Project	Parameters/Description
Production Process	Cold Drawn + Honed/Rolled
Outer Diameter Range	Φ50mm - Φ500mm (adjustable upon request)
Wall Thickness Range	Customized according to customer design requirements
Length	Up to 12 meters, or custom cut to length
Dimensional Tolerance	Outer Diameter/Inner Diameter: ±0.05mm (higher accuracy possible)
Straightness	≤ 0.5mm/m
Inner Surface Finish	Ra ≤ 0.4μm (Ra 0.2μm available upon request)
Common Materials	20 steel, 45 steel, 42CrMo, stainless steel, etc.
Standards	Complies with ASTM A519, DIN 2391, GB/T 3639, etc.

Core Applications

Our cold-drawn stator tubes are ideal for the following industries

High-voltage motors and generators

Serves as the stator core support housing.

Hydraulic systems

Used in the manufacture of hydraulic cylinders and servo valve bodies.

Servo motors and torque motors

Ideal for high-precision, thin-walled stator tubes.

Oil and gas

Used in downhole drilling motors (Mohr motors).

Construction machinery and heavy equipment

Key components for travel and swing motors.

Aerospace and military

Applications requiring extreme reliability and precision.

Our Advantages: Beyond Products

Strong Manufacturing Base

A 30,000 square meter modern industrial facility with an annual output value exceeding RMB 250 million, ensuring stable supply. Comprehensive Quality System: From incoming raw materials to finished product shipment, we conduct comprehensive quality inspections (chemical composition analysis, mechanical property testing, ultrasonic testing, dimensional accuracy testing, etc.).

Global Trade Experience

Our products are exported overseas, and we are familiar with international trade processes and support global delivery.

Technical Expert Support

Our team of engineers is happy to provide technical consultation and assist you in optimizing material selection and design.

Consult Now for Your Customized Solution

Whether you already have complete drawings or are just in the design phase, Hengtong's team of experts is ready to serve you.

Contact us and provide your technical requirements. We will provide you with the most competitive quote and technical solutions.

Wuxi Hengtong Petroleum Machinery Co., Ltd.

Strategic Positioning

Located in the economic center of China's Yangtze River Delta, on the shores of Taihu Lake

Core Competencies

Precision Tube Manufacturing | Energy Equipment Solutions | Global Materials Trading

Commitment

Leading by technology, relying on quality for survival, and creating core value for our customers.

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As one of the most professional stator tube manufacturers and suppliers in China, our factory provides all kinds of stator tube with competitive price. Hope you enjoy your shopping.

ASTM A519 4140 tubing, 4140 cold drawn stator tube, Uniform Thickness 4140 Tube