Open die forging press Dnepropress PA1345 — 3200 ton

Dabrox Listing ID: 75733

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Dnepropress PA1345 open die forging press - description

Open die forging press Dnepropress PA1345 — 3200 ton (ID:75733) is forging and pressing equipment designed for open-die forging under conditions of open forming without the use of closed dies. The press develops significant force and ensures deep refinement of the metal structure throughout the entire workpiece cross-section. Used in the production of large forgings — shafts, discs, rings, and other critical parts.

Technical specifications Dnepropress PA1345 (ID:75733)

TypeOpen die forging press
ManufacturerDnepropress
ModelPA1345
Year of manuafacturing1975
Nominal power3200 ton
Number of working strokes per minute10
Number of finishinf strokes per minute80-90
Maximum skid stroke2000 mm
Distance between table and skid (in upper position)4000 mm
Distance between columns
Front3000 mm
Side1200 mm
Nominal travel of the table5000 mm
Table dimensions6000 x 2400 mm
Extractor travel
Total1300 mm
Below table590 mm
Working liquid pressure from pump installation320 kgf/cm2
Dimensions
Left to right11800 mm
Front to back24800 mm
Height
With extractor16840 mm
Without extractor14160 mm
Weight
Of the press, aprox.465000 kg
Of the complete installation, aprox.565000 kg

Open die forging press Dnepropress - technological processes and operations

Forging The process of plastic deformation of metal, in which the workpiece changes shape under the impact of blows or static pressure. During forging, the metal structure is densified, internal inhomogeneities are eliminated, and the mechanical properties of the material are improved. As a result, forged products are distinguished by high strength and reliability when operating under significant loads. Forging is used both for producing finished parts and for preparing workpieces for subsequent stamping.
Hot forging Hot forging is a process of shaping metal under pressure at elevated temperatures. Heating reduces the deformation resistance of the material, allowing it to flow more easily into the die cavity. The process provides high productivity and the ability to form complex shapes. Used for manufacturing forgings from steel and alloys in series and mass production.
Open-die forging Metal is deformed between flat or shaped tools without lateral restriction, allowing free flow in all directions. The workpiece is gradually shaped by repeated blows or press strokes, with the operator controlling its position between each step. This method is used for producing large forgings such as shafts, discs, and rings, where a refined internal structure is essential.
Preforming Preforming prepares the workpiece for the main stamping operation by giving it an approximate shape of the future part. The metal is distributed in the die to facilitate final filling and reduce tool wear. This intermediate step improves accuracy and quality of the finished product.
Piercing Piercing forms a hole in a solid workpiece by driving a tool through the material without removing it. The metal is displaced sideways, creating a through or blind opening while preserving the structure around it. The operation is performed on presses and is used in the production of hollow parts such as bushings, rings, and shafts.