China High Quality Forging Cylinder Barrel Factory – Forging Hydraulic Cylinder Barrel & Plunger – Rongli Forging Detail:
Introduction
Rongli Forging Co., Limited is able to supply forged & machined horizontal and vertical hydraulic cylinder barrels up to 2.7 meters (8.9 feet) in length as one single piece. A specialised Automatic Welding System takes place when necessary. A variety of material grades to different standards are in practice here in our modernized shop. Our highly-spoken cylinder barrels are used on forging presses, vertical hydraulic presses, and horizontal hydraulic presses. They are delivered to all over the world, in industries of Heavy Equipment & Machinery, Oil & Gas, Mine & Metal Processing, Construction etc.
Material
| Standard | |||||
| North America | Germany | Britain | ISO | EN | China |
| AISI/SAE | DIN | BS | GB | ||
| Cylinder Barrel (Forging) | |||||
| 1035 | C35E | C35E | C35E4 | 35 | |
| 1040 | C40E | C40E | C40E4 | 40 | |
| 1045 | C45E | C45E | C45E4 | 45 | |
| 20Mn5 | 20SiMn | ||||
| 4135 | 35CrMo | ||||
| 34CrNiMo6 | 817M40 | 34CrNiMo6 | 36CrNiMo6 | 34CrNiMo | |
| Any other material grade as per customer’s require | |||||
| Plunger (Forging) | |||||
| 1035 | C35E | C35E | C35E4 | 35 | |
| Plunger surfaces can be hardened with overlay welding of 2Cr13 to 45-50 HRC | |||||
Forging method: Open die forging / free forging
1. Material: Carbon steel, alloy steel, stainless steel
2. Material standard: DIN/ ASTM/AISI/ASME/BS/EN/JIS/ISO
3. Mechanical properties: According to customer requirement or standard.
4. Weight: Up to 70 Tons of finished forging. 90 Tons for ingot
5. Length: Up to 2.7 meters (8.9 feet) w/o welding connection. Welding is available to fabricate longer cylinder barrels
6. Delivery Status: Heat treated and rough machined
7. Industries: Oil and Gas, Mine & Metal processing, Heavy Industry Machinery, Construction, etc.
8. Inspection: Chemical analysis with spectrometer, Tensile test, Charpy test, Hardness Test, Metallurgy test, Ultrasonic test, Magnetic Particle test, Liquid Penetration test, Hydro test, Radiographic test are implementable.
9. Quality Assurance: Per ISO9001-2008
Product detail pictures:

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Our focus on should be to consolidate and enhance the quality and repair of present products, in the meantime constantly establish new products to meet unique customers' requires for China High Quality Forging Cylinder Barrel Factory – Forging Hydraulic Cylinder Barrel & Plunger – Rongli Forging, The product will supply to all over the world, such as: London, Croatia, Germany, Our company has already had a lot of top factories and professional technology teams in China, offering the best products, techniques and services to worldwide customers. Honesty is our principle, professional operation is our work, service is our goal, and customers' satisfaction is our future!
The factory can meet continuously developing economic and market needs, so that their products are widely recognized and trusted, and that's why we chose this company.






