Open Die Forging

When off-the-shelf components fail to meet your size or strength requirements, Open Die Forging (also known as Free Forging) is the solution. We specialize in manufacturing heavy-duty custom forgings that require superior structural integrity.

From 20-ton marine shafts to high-pressure valve blocks, our open die forging process refines the grain structure of the metal, delivering components that withstand the most extreme industrial environments.

Our Open Die Forging Capabilities

We provide a full spectrum of forged shapes using hydraulic presses ranging from 2000T to 8000T.

1. Forged Shafts & Spindles

We manufacture various heavy shafts for power transmission and marine applications.

• Types: Stepped shafts, rotor shafts, eccentric shafts, ship propeller shafts, and wind turbine spindles.
• Capacity: Max length up to [ 15,000mm]; Max weight up to [ 30 Tons].
• Advantage: Forging ensures continuous grain flow along the axis, maximizing torque and fatigue resistance.

2. Forged Discs & Tube Sheets

Solid discs and perforated discs used in pressure vessels and gear manufacturing.

• Applications: Gear blanks, tube sheets for heat exchangers, blind flanges, and heavy-duty covers.
• Capacity: Max diameter up to [ 3,000mm].

3. Forged Blocks & Valve Bodies

Rectangular blocks forged on all six sides to ensure sound centers.

• Applications: Hydraulic manifolds, high-pressure valve bodies, and die blocks.
• Quality: 100% Ultrasonic Testing (UT) to ensure zero internal porosity or cracks.

Material Grades Available

We forge a wide range of materials to meet ASME, ASTM, and DIN standards.

• Carbon Steel: SA105, A350 LF2, C45.
• Alloy Steel: 42CrMo4 (4140), 18CrNiMo7-6, 34CrNiMo6 (4340), F11, F22.
• Stainless Steel: 304/304L, 316/316L, F51 (Duplex), F53 (Super Duplex).

Why Choose Open Die Forging?

Unlike casting or machining from rolled bars, open die forging offers:

1. Better Mechanical Properties: The working of the metal eliminates voids and creates a finer grain structure.
2. Custom Sizes: We are not limited by molds. We can forge unique shapes and massive sizes that are impossible with other methods.
3. Cost Savings: Near-net-shape forging reduces material waste and machining time compared to cutting from solid blocks.

Industries We Serve

• Power Generation: Turbine rotors and generator shafts.
• Oil & Gas: Wellhead equipment and valve blocks.
• Marine: Propulsion shafts and rudder stocks.
• Heavy Machinery: Excavator parts and press columns.

Get a Quote for Custom Forgings

Do you need a supplier who can handle heavy/large forgings with precision? Send us your drawings or material specifications. Our engineering team provides quick quotes and technical support.