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Cylinder Pipe

Your Professional Cylinder Pipe Supplier

Our goal is to become your reliable partner in the cylinder pipe in China. Founded in 2005, Jiangsu YingNaisi is a specialized manufacturer focusing on precision cold-drawn steel tubes and hydraulic cylinders. We are committed to applying advanced manufacturing technologies and strict quality control standards to every product. Our products are quality-assured, making us a dependable choice for long-term cooperation.

Honed Tube for Hydraulic Cylinder

A honed tube, also commonly known as a hydraulic cylinder tube or cylinder barrel, is a critical and precision-made component that forms the main body of a hydraulic cylinder. It serves as the

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E355 Din2391 H8 Bks Srb Cylinder Pipe

The E355 DIN2391 H8 BK+S SRB cylinder pipe is a high-performance honed tube specifically designed for hydraulic cylinder applications. Manufactured in compliance with the DIN 2391 standard, this tube

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Din2391 St52 Srb Cylinder Pipe

The DIN2391 ST52 SRB Cylinder Pipe is a high-precision honed tube specifically engineered for hydraulic cylinder applications, offering excellent mechanical properties, dimensional accuracy, and

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Honed Cylinder Tube

Honed cylinder tubes are high-precision seamless or welded steel tubes that undergo specialized internal finishing processes to achieve superior surface quality, dimensional accuracy, and mechanical

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H8 E355 Din2391 Metric Honed Tubing

H8 E355 DIN2391 metric honed tubing represents a class of high-precision cold-drawn seamless steel tubes specifically engineered for demanding hydraulic cylinder applications. Manufactured in strict

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Honing Pipe for Cylinder

Honing pipes for hydraulic cylinders represent specialized tubular products that undergo precision internal machining to achieve exacting tolerances, superior surface finishes, and optimal mechanical

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Why Choose Us

Advanced Production Equipment:

The company is equipped with 18 CNC machining centers, 5 automatic welding production lines, 2 cylinder component cleaning production lines, 2 assembly production lines, 4 performance testing benches, and 2 painting production lines, with an annual output of 50,000 hydraulic cylinders.

Our Services:

We provide hydraulic cylinder installation and commissioning support: remote or on-site engineering guidance for system integration, free replacement or repair for non-human-caused damage, and regular follow-up on equipment performance and preventative maintenance recommendations.

Our Production Capacity:

Annual sales of precision cold-drawn tubing exceed 8,000 tons, and annual sales of hydraulic cylinders exceed 20,000 units.

Quality Control:

Our products are manufactured strictly according to international standards, using high-quality materials to ensure superior strength and durability. Each tube undergoes a special heat treatment process to further enhance its mechanical properties and wear resistance.

Advantages of Cylinder Pipe

High strength and pressure resistance:

Cylinder pipes are usually made of high-strength alloy steel or stainless steel and have excellent pressure resistance. It can withstand high-stress working environments and ensure the safe operation of the system.

Good sealing performance:

The manufacturing process and precision processing of the cylinder pipe ensure the flatness and smoothness of its internal and external surfaces, thereby achieving good sealing performance. This ensures the efficiency and precision of the cylinder's work.

Reliability and durability:

The cylinder pipe has high fatigue resistance and long life . It also has excellent corrosion resistance and can operate stably for a long time in harsh working environments.

Precise dimensional control:

Precision processing technology is used in the manufacturing process of cylinder pipes, which can achieve high-precision dimensional control.

Specification of Cylinder Pipe

Delivery condition	Cold finished(hard)(BK)		Cold drawn and stress-relieved(BK+S)
Steel grade	Rm MPa	Elongation A5%	Rm MPa	ReH Mpa	Elongation A5%
C20	≥550	≥5	≥520	≥375	≥15
CK45	≥645	≥5	≥600	≥520	≥10
Q355B	≥640	≥5	≥600	≥520	≥14
Q355D	≥640	≥5	≥600	≥520	≥14
E355(ST52)	≥640	≥5	≥600	≥520	≥14
SAE1026	≥640	≥5	≥600	≥520	≥15

Features of Cylinder Pipe

Honed cylinder tubes are high-precision seamless or welded steel tubes that undergo specialized internal finishing processes to achieve superior surface quality, dimensional accuracy, and mechanical properties. They serve as the core component in hydraulic and pneumatic cylinders, where smooth internal surface finish and tight tolerances are critical for efficient and reliable operation.

The chemical composition of each grade is carefully controlled to ensure optimal mechanical performance and weldability.

Application of Cylinder Pipe

High-pressure vessels & gas storage: Seamless steel pipes are used to manufacture gas cylinders, including automotive cng tanks, lpg cylinders, and high-pressure bottle-type tubes.

Hydraulic and pneumatic systems: These tubes are ideal for manufacturing hydraulic or oil cylinders, pneumatic components, and hydraulic braking systems in vehicles.

Automotive industry: Used for manufacturing axle tubes, protective transmission structures, and safety components like seatbelt tensioners and airbag frame structures.

Prestressed concrete cylinder pipe:

Used in high-pressure water transmission pipelines.

Casing:

Employed as casing for concrete pilings in construction.

Industrial machinery:

Used as the backbone for machine frames, conveyor systems, oil circulation systems, and manufacturing equipment.

Energy and fluid conveyance:

Transporting gas, liquid, or oil over long distances, including oil well casing and process piping.

Processing Form of Cylinder Pipe

Processing form	I.Dmm	Length	Straightness	I.D tolerance	I.D Roughness (RA)
Honed	40-500	≤12M	0.5-1/1000	H8-H9	0.4-0.8um
SRB	50-250	≤12M	0.5-1/1000	H8	0.1-0.4um

Other Service of Cylinder Pipe

Package	Bundle packing, waterproof paper wrapping
Shipping	Sea/Express
Payment	we accept T/T and L/C. For samples or small trial orders

FAQ

Q: What are the primary applications of honed tubes?

A: They are mainly used in hydraulic cylinders, pneumatic cylinders, telescope tubes, and industrial machinery where a high-quality surface finish is required.

Q: What size range is available?

A: Standard inner diameters typically range from 32mm to 500mm, with lengths reaching up to 6 meters, though custom sizes are possible.

Q: Does honing increase the bore size?

A: Yes, honing removes a small layer of material, which can slightly increase the bore size. It is designed to correct minor taper, out-of-roundness, and surface defects.

Q: How do I select the right hone?

A: Select a hone based on the cylinder's diameter and the material of the liner (e.g., Nikasil or cast iron). Flexible hones are popular for deglazing and creating a 45° cross-hatch.

Q: How do I clean the cylinder after honing?

A: Thorough cleaning is critical. Use warm soapy water and a bottle brush, then rinse with a degreaser until a white rag comes out completely clean after wiping the cylinder wall.

We are one of the most professional cylinder pipe manufacturers and suppliers in China, also support customized service. We warmly welcome you to buy bulk cylinder pipe in stock here from our factory. Quality products and low price are available.

H8 ST52 DIN2391Precision cold drawn steel pipe, Honed Cylinder Tube, hydraulic cylinder tube