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High Precision Steel Tube Manufacturer

We are proud to introduce ourselves as an experienced tube solution provider and reliable partner for various industrial application like hydraulic cylinder, automotive, machinery, etc.

Hydraulic Cylinder Tube

Hydraulic Cylinder tube is a kind of precision tube finally used for construction of hydraulic cylinder barrel. The key quality index is internal surface quality, including ID tolerance&ovality, internal surface roughness,etc. Others are determined by design.

Precision Tube/Mechanical Tube

Cold finished tube, covering cold drawn steel tube and cold rolled steel tube, is always considered as mechanical tubing or precision tube, due to tight or customized size&tolerance, availability of different delivery conditions, etc.

Other Steel Tube

ST37.4/SAE J524/SAE 1010

We provide additional services based on the tubes we manufacturer for our customers, including but not limited to CNC turning, hard chrome plating,galvanization, etc.

Equipment Introduction

Our equipment has high-precision internal burr removal production lines for high-frequency straight seam welded pipes such as Ф25, Ф28, Ф32, Ф50, and Ф60. It can produce round pipes with an outer diameter of Ф8 to Ф70mm and a wall thickness of 0.8mm to 3.0mm, as well as square and rectangular pipes and special-shaped pipes of various specifications. It can also customize steel pipes of various requirements according to customer needs.

Multi-Roll straightening machine

Multi-Roll straightening machine plays a critical role in precision steel tube manufacturing by ensuring straightness, enhancing quality, improving mechanical properties, and optimizing production efficiency.

1. Precision Straightening:
The Multi-Roll Straightening Machine ensures the straightness of steel tubes by passing them through multiple rolls that gradually correct any distortions. This process is crucial for achieving precise dimensional accuracy required in various industrial applications.

2. Enhanced Quality Control:
By eliminating bends and deformations, this machine improves the overall quality of steel tubes. It enhances surface integrity and structural uniformity, meeting stringent standards for performance and reliability.

3. Improved Mechanical Properties:
Straightening enhances the mechanical properties of steel tubes by reducing residual stresses and improving fatigue resistance. This results in stronger, more durable tubes suitable for demanding applications.

4. Versatility and Efficiency:
The machine accommodates a wide range of tube sizes and materials, offering flexibility in production. It optimizes the manufacturing process by reducing manual labor and ensuring consistent results, thereby enhancing productivity.

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Skiving and roller burnishing machine

We have two sets of skiving and roller burnishing machine.
Skiving and roller burnishing machine is vital in manufacturing precision steel tubes by providing superior surface finish, dimensional accuracy, and enhanced mechanical properties while optimizing production costs.

1. Surface Finish Enhancement:
The Skiving and Roller Burnishing Machine improves the inner surface finish of steel tubes. Skiving involves precision cutting to remove material, followed by roller burnishing, which compresses the surface, creating a smooth, polished finish. This process is critical for applications requiring low friction and high wear resistance, such as hydraulic cylinders.

2. Dimensional Accuracy:
This machine ensures tight tolerances by precisely skiving the tube's inner diameter to the desired size. Roller burnishing further refines the dimension by compressing the surface, achieving high accuracy and uniformity essential for precise engineering applications.

3. Enhanced Mechanical Properties:
Roller burnishing increases the surface hardness and fatigue strength of the steel tubes. This results in longer service life and better performance under high-pressure conditions, important for industrial and automotive uses.

4. Cost Efficiency:
Combining skiving and roller burnishing reduces the need for additional machining and polishing processes. This integration lowers production costs and improves efficiency by streamlining the manufacturing workflow.

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Hydraulic cold drawing machine

Hydraulic cold drawing machine plays a crucial role in the production of precision steel tubes. We have two sets of advanced hydraulic cold drawing benches : 300 tons’ power and 250 tons’ power, here are main functions and significance:

1. Dimensional Accuracy:
The hydraulic cold drawing machine is instrumental in achieving high dimensional accuracy. During the cold drawing process, the steel tube is pulled through a die, which reduces its diameter and wall thickness to precise measurements. This results in tight tolerances and consistent dimensions, essential for applications requiring exact specifications.

2. Surface Finish Improvement:
Cold drawing significantly enhances the surface quality of the steel tubes. The process smooths out imperfections and improves the overall finish, making the tubes suitable for applications where a high-quality surface is critical, such as in hydraulic systems and automotive components.

3. Enhanced Mechanical Properties:
Cold drawing refines the grain structure of the steel, which enhances its mechanical properties. The process increases the strength and hardness of the steel tubes, making them more robust and capable of withstanding higher pressures and mechanical stresses. This is particularly important in sectors like aerospace and energy, where material performance is crucial.

4. Production of Complex Cross-Sections:
Hydraulic cold drawing machines allow for the production of steel tubes with complex and non-standard cross-sections. This capability is essential for creating custom profiles used in specialized industrial applications, such as structural components and custom machinery parts.

5. Material Efficiency:
The cold drawing process is highly material-efficient, with minimal waste. The precise control over dimensions reduces the need for extensive post-processing, such as machining, thus conserving material and reducing production costs.

6. Versatility:
Hydraulic cold drawing machines are versatile and can process various types of steel, including high-carbon and alloy steels. This flexibility makes them suitable for a wide range of industries and applications, from small diameter medical tubes to large diameter structural components.

In summary, the hydraulic cold drawing machine is essential in the precision steel tube manufacturing process for achieving high dimensional accuracy, superior surface finish, enhanced mechanical properties, and efficient production of complex cross-sections. Its ability to handle a variety of materials and produce high-quality tubes makes it indispensable in industries where precision and performance are paramount.

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Automatic sawing machine

Automatic sawing machine is essential in precision steel tube manufacturing for providing accurate cuts, enhancing production efficiency, ensuring safety, and reducing material waste.

1. High Precision Cutting:
The Automatic Sawing Machine delivers precise cuts with minimal deviation, ensuring steel tubes meet exact length requirements. This precision is crucial for maintaining consistency and quality in applications where length accuracy is paramount.

2. Increased Efficiency:
With automated operation, this machine significantly boosts production speed. It can handle high volumes of steel tubes with consistent quality, enhancing overall manufacturing efficiency and throughput.

3. Improved Safety:
Automation reduces the need for manual intervention, lowering the risk of accidents and injuries. This makes the production process safer for operators.

4. Reduced Material Waste:
The machine optimizes the cutting process, minimizing material waste and ensuring optimal use of raw materials. This efficiency helps in reducing costs and improving sustainability.

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All Products

ASTM A519 Cold Drawn Seamless Mechanical Tubing

Brief: Direct factory manufacturer of ASTM A519 cold-drawn seamless mechanical tubing and equivalent C45E precision steel tubes. Engineered for high-pressure fluid power systems and heavy machinery.
✅ Core Standards: ASTM A519 (SAE 1045/1026) & EN C45E
✅ Seamless Mechanical Tubing Sizes: OD 40mm – 580mm (Custom WT)
✅ Bore Precision: Honed or SRB (Ra ≤ 0.25μm, Strict ISO H8)
✅ Key Applications: Hydraulic barrels & seamless tubes for delivery cylinders
✅ Delivery States: +C, +LC, +SR, +A, +N, Q+T available
* Mill Test Certificate (MTC) provided. Custom CNC machining supported.

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Ck45 C45 1045 S45c Cold Drawn Seamless Honed Steel Tubes for Hydraulic Cylinder

Brief: Premium carbon steel honed tube manufacturer. We supply high-precision, ready-to-assemble seamless steel tubes with superior tensile strength and a flawless mirror-like bore, specifically engineered for heavy-duty hydraulic cylinder barrels.
✅ Core Equivalent Grades: CK45 / SAE 1045 / EN C45E / JIS S45C
✅ Size Range: OD 40mm – 580mm (Wide coverage)
✅ ID Precision: Strict H8 Tolerance
✅ Internal Finish: Honed (Ra ≤ 0.25μm or 0.35μm)
✅ Delivery Condition: +SR / BKS / +C / +N / Q+T available
* Mill Test Certificate provided. Custom skiving & roller burnishing supported.

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40mm*32mm-325mm*300mm

ST52,E355,E470,20MnV6,1026,STKM 13C

E355 skived&roller burnished tube

Brief: Direct factory supply of high-quality precision skived tubes and advanced skived rolling burnished honed tubes. Engineered for premium hydraulic cylinders requiring ultra-smooth internal finishes and enhanced surface hardness.

✅ Core Material: EN E355 / DIN ST52 / SAE 1026
✅ Inner Roughness: Ra ≤ 0.25μm (Superior to a standard burnished honed tube)
✅ ID Tolerance: Precision H8 (H7/H9/H10 available)
✅ Size Range: OD 33mm – 325mm
✅ Advantage: Higher internal surface hardness & longer seal life
* Custom OD machining and CNC turning supported. Request a factory quote today.
MOQ: 500 Kgs/Size

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CK45 Hard Chrome Plated Rod

Brief: Direct factory supply of high-performance ck45 chrome plated rods and weight-saving hard chrome plated steel hollow bars. Engineered for extreme durability in heavy-duty hydraulic and telescopic cylinders.

✅ Product Types: Solid (ck45 carbon steel chrome plated piston rod) & Hollow (hollow chrome plated rod)
✅ Core Material: CK45 / SAE 1045 / C45E
✅ Chrome Layer: 20μm – 50μm (Hardness ≥ HV800)
✅ Precision Tolerance: ISO f7 or f8
✅ Size Range: OD 8mm – 250mm (Custom lengths available)
* Strict salt spray testing passed. Custom CNC machining supported.

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SAE AISI 1045 C45 Cold Drawn Seamless Carbon Steel Honed Tubing for Hydraulic Cylinder

Brief: As a direct c45 1045 steel pipe factory, we supply premium cold drawn seamless honed steel tubes ready for immediate hydraulic cylinder assembly. Engineered for high-pressure fluid power systems, our tubes guarantee ultimate durability and leak-free performance.

✅ Core Material: SAE 1045 / EN C45E / GB 45#
✅ Size Range: OD 40mm – 325mm
✅ ID Precision: Strict H8 Tolerance
✅ Inner Roughness: Mirror-like Honed (Ra ≤ 0.25 μm)
✅ Business Type: Factory direct seamless steel honed tube wholesale
* Custom CNC turning and machining available upon request.

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40mm*32mm-325mm*280mm

ST52, E355, 1026, 1045, STKM 13C

E355 Pre honed tube with OD polished

Brief: Specification: EN 10305-1
Grade: E355
MOQ: 100 Kgs/size

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CK45 Piston rod

Brief: Hard Chrome Plated Rods
Delivery Condition: +AR, Induction hardened, Q+T
Size: 8mm f7 - 200mm f7

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St52 Seamless Steel Honed Tube for Hydraulic Cylinder Barrel

Brief: As a leading seamless honed tube manufacturer, we supply high-strength ST52 honed cylinder tubes engineered for heavy-duty hydraulic barrels. Manufactured from premium ST52 seamless pipe, it ensures ultimate pressure resistance and zero fluid leakage.

Material: ST52 / ST52.3 / ST52.4 (DIN 2391 / EN 10305-1)

Size Range: ID 30mm–500mm | OD 40mm–580mm

Precision: Strict H8 ID Tolerance

Surface Roughness: Ra ≤ 0.25 μm (Honed) or ≤ 0.35 μm (SRB)

Customization: Every ST52 tube can be cut and CNC machined to your drawings.

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C45e Seamless Honed Steel Tube for Hydraulic Cylinder Barrel

Brief: Honed hydraulic cylinder tube is a kind of smooth bore steel tube used to manufacture hydraulic cylinder barrels that is the core part of a piece of hydraulic cylinder.

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