Closed Die Forging

Closed Die Forging
Closed Die Forging

We manufacture Closed Die Forging Press Types for large parts. Starting as low as 40 Ton up to 3000 Tonnes hydraulic forging press solutions from the manufacturer.

Closed die forging is a metalworking process in which a hammer or press is used to deform a piece of metal into a desired shape by striking it with a die. The process is called “closed” because the metal is confined within the die, preventing it from flowing out and maintaining the shape of the die.

The process begins by heating the metal to a specific temperature, depending on the type of metal being used and the desired final shape. Once heated, the metal is placed between two dies, with one stationary and the other moving. The moving die is then pressed against the metal, deforming it into the desired shape.

The process is commonly used to produce small to medium-sized parts such as gears, bolts, and connecting rods. It is particularly well-suited for producing parts with complex shapes, high strength, and good surface finish. Some of the industries that commonly use closed die forging include aerospace, automotive, and manufacturing.

Closed Die Forging

Closed die forging involves several components including:

  1. Dies: Dies are metal molds or tools that are used to shape the heated metal into the desired shape. There are two types of dies: top and bottom. The top die is attached to the hammer or press, while the bottom die is attached to the anvil or bolster.
  2. Hammer or press: The hammer or press applies a compressive force to the heated metal that is held between the dies, causing it to take the shape of the dies.
  3. Anvil or bolster: The anvil or bolster provides support for the bottom die and absorbs the force from the hammer or press.
  4. Heating furnace: The heating furnace is used to heat the metal to a temperature that makes it malleable and easy to shape.
  5. Cooling system: After the metal has been forged, it needs to be cooled down to prevent any distortion or warping.
  6. Lubrication system: Lubrication is necessary to reduce the friction between the metal and the dies during the forging process.
  7. Ejector system: The ejector system is used to remove the finished part from the dies once the forging process is complete.


Closed die forging is used in various industries including aerospace, automotive, defense, medical equipment, agriculture, and construction. It is particularly useful in producing complex and high-strength components that require excellent mechanical properties, such as crankshafts, connecting rods, gears, and turbine blades.

What is Forging with a Closed Die Forging Press

Forging with a press is a metalworking process in which a compressive force is applied to a heated metal billet to shape it into a desired form. The press typically consists of two dies, a stationary die and a moving die, which are used to apply the compressive force. The metal billet is placed on the stationary die and the moving die is then lowered onto it. The compressive force is then applied, which deforms the metal and shapes it into the desired form. Press forging is used to produce a wide range of metal parts, from small components to large structures such as aircraft landing gear. It is commonly used in the automotive, aerospace, and construction industries.

EMS Metalworking Machinery

We design, manufacture and assembly metalworking machinery such as:

  • Hydraulic transfer press
  • Glass mosaic press
  • Hydraulic deep drawing press
  • Casting press
  • Hydraulic cold forming press
  • Hydroforming press
  • Composite press
  • Silicone rubber moulding press
  • Brake pad press
  • Melamine press
  • SMC & BMC Press
  • Labrotaroy press
  • Edge cutting trimming machine
  • Edge curling machine
  • Trimming beading machine
  • Trimming joggling machine
  • Cookware production line
  • Pipe bending machine
  • Profile bending machine
  • Bandsaw for metal
  • Cylindrical welding machine
  • Horizontal pres and cookware
  • Kitchenware, hotelware
  • Bakeware and cuttlery production machinery

as a complete line as well as an individual machine such as:

  • Edge cutting trimming beading machines
  • Polishing and grinding machines for pot and pans
  • Hydraulic drawing presses
  • Circle blanking machines
  • Riveting machine
  • Hole punching machines
  • Press feeding machine

You can check our machinery at work at: EMS Metalworking Machinery – YouTube


  • Beading and ribbing
  • Flanging
  • Trimming
  • Curling
  • Lock-seaming
  • Ribbing
  • Flange-punching