1. Material & Manufacturing

• Type: Hydraulic Seamless Cylinder Tube

• Standards: EN 10305-1 / DIN 2391 / ASTM A519 (others available)

• Process: Cold-drawn seamless process with precision honing or skiving & roller burnishing

• Surface Finish: Smooth inner bore, high dimensional accuracy, anti-rust oil coating

2. Key Features

✔ High Precision – Excellent dimensional tolerance and smooth inner surface
✔ Wear Resistance – Suitable for long service life in hydraulic applications
✔ High Strength & Toughness – Withstands high pressure and impact loads
✔ Excellent Sealing Performance – Ensures reliable piston and hydraulic system operation

3. Applications

• Hydraulic Cylinders

• Construction Machinery (Excavators, Loaders, Cranes)

• Agricultural Machinery

• Hydraulic Systems & Industrial Equipment

4. Certifications

• ISO 9001 Quality System

• Mill Test Certificate (EN 10204 3.1)

• Third-Party Inspection (SGS, BV, TUV)

Frequently Asked Questions (FAQ)

1. Are you a manufacturer or trading company?
We are a manufacturer with our own factory located in Hebei, China.

2. What materials do you offer?

• Stainless Steel: 304, 304L, 316, 316L, 321, etc.

• Carbon Steel: ASTM A105, ASTM A350 LF2, Q235, Q345, etc.

• Alloy Steel: ASTM A182 F11, F22, F5, etc.

3. Which standards do your products comply with?
ASME B16.5, ANSI, ASTM, DIN, JIS, EN, GB — with third-party inspection available.

4. Do you support OEM/ODM customization?
Yes, we provide custom machining, coating, marking, and packaging based on your drawings.

5. What is your minimum order quantity (MOQ)?
MOQ is typically 1 piece for standard items; customized parts may vary.

6. Do you provide free samples?
Yes, free samples for standard sizes are available; buyers cover shipping cost.

7. What is your delivery time?

• In-stock: 3–5 working days

• Bulk/custom orders: 10–25 working days

8. How do you ensure product quality?
We perform full inspection: raw material verification, dimensional checks, pressure/leak tests, and surface finish inspection. Third-party testing is available upon request.