Screw press Weingarten PA 140 — 320 ton
Weingarten PA 140 screw press - description
Technical specifications Weingarten PA 140 (ID:S89421)
| Type | Screw press |
|---|---|
| Manufacturer | Weingarten |
| Model | PA 140 |
| Nominal force | 320 ton |
| Max. force | 400 ton |
| Screw diameter | 140 mm |
| Gross working capacity PA | 6.5 kJ |
| Stroke | 190 — 320 mm |
| SPM | 32 |
| Distance bed – slide max. | 670 mm |
| Daylight | 350 mm |
| Table surface area | 600 x 550 mm |
| Slide area | 530 x 500 mm |
| Height over floor approx. | 3550 mm |
| Weight of machine approx. | 6.5 ton |
Screw press Weingarten - 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. |
|---|---|
| Cold forging | Cold forging is a process of shaping metal under pressure at room temperature. The absence of heating provides high dimensional accuracy and a smooth surface finish. Due to work hardening, the finished parts acquire increased strength. The process is used for manufacturing precision parts with tight tolerances. |
| 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. |
| Closed-die forging | The workpiece is deformed inside a die cavity that restricts metal flow, forcing it to fill the exact shape of the tool. Under high pressure, the material spreads into every recess and detail of the die, producing a part with precise geometry. This method provides high accuracy and repeatability, making it the standard for series and mass production of complex forgings. |
| 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. |
| Calibrating | A finishing operation that brings the forging to precise dimensions. The workpiece is placed in a calibration die, where under pressure its surface is leveled and the geometry is brought to the specified tolerances. This process eliminates minor shape distortions left after previous operations. As a result, the part receives stable dimensions and a smooth surface without additional machining. |