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Stamtec’s warm and hot forging presses provide the force, rigidity, and thermal capability required for forming components that cannot be produced through cold forging alone. By shaping material at elevated temperatures, these presses enable deeper deformation, improved material flow, and the production of larger or more complex geometries while maintaining excellent structural integrity.
These presses are widely used across automotive, industrial, appliance, medical, and defense applications, where part strength, durability, and controlled grain flow are essential. Stamtec’s forging lineup includes the WF1 Series, WF2 Series, and KW1 Semi‑Hot Knuckle‑Joint Presses, offering a range of capacities, bed sizes, and forming characteristics to support diverse production requirements.
The WF1 and WF2 Series are straight‑side forging presses designed for elevated‑temperature forming of medium to large components. These presses provide high rigidity, stable slide guidance, and consistent forming force across a wide range of warm and hot forging applications.
Warm/hot forging improves material flow, reduces forming loads, and produces near‑net‑shape parts with excellent mechanical properties. The WF1 and WF2 platforms support deeper deformation, larger part sizes, and high‑strength materials that cannot be shaped cold.
Model | WF1‑400 | WF1‑600 | WF2‑800 | WF2‑1000 | WF2‑1600 | WF2‑2000 | WF2‑3200 |
Capacity (US tons) | 440 | 661 | 881 | 1102 | 1763 | 2204 | 3527 |
Capacity (metric tons) | 400 | 600 | 800 | 1000 | 1600 | 2000 | 3200 |
Stroke (in.) | 6.89 | 7.87 | 9.84 | 11.81 | 12.99 | 12.99 | 14.17 |
Stroke (mm) | 175 | 200 | 250 | 300 | 330 | 330 | 360 |
Speed (SPM) | 100 | 85 | 75 / 60 | 70 / 55 | 70 / 50 | 48 | 42 |
Slide Adjustment (in.) | 0.39 | 0.39 | 0.39 | 0.39 | 0.39 | 0.39 | 0.39 |
Die Height (in.) | 19.88 | 21.65 | 25.59 | 27.56 | 31.5 | 35.43 | 47.24 |
Slide Area (in.) | 23.43×21.85 | 27.35×25.04 | 31.50×29.53 | 35.43×34.65 | 37.40×35.43 | 51.18×47.24 | 61.02×57.09 |
Bolster Area (in.) | 30.32×33.07 | 34.65×34.65 | 38.58×39.37 | 39.37×41.34 | 49.21×41.34 | 57.09×55.11 | 68.90×62.99 |
Bolster Thickness (in.) | 4.72 | 4.72 | 6.3 | 6.3 | 7.87 | 11.81 | 11.81 |
Side Opening (in.) | 25.59×17.72 | 27.56×19.69 | 31.50×19.69 | 35.43×25.59 | 39.37×29.53 | 43.31×31.50 | 47.24×33.47 |
Main Motor (HP × poles) | 37×6 | 45×6 | 55×6 | 75×6 | 110×6 | 90×6 | 132×6 |
Slide Knock‑Out (ton/mm) | 4/20 | 6/20 | 8/30 | 10/35 | 16/40 | 20/45 | 32/45 |
Bed Knock‑Out (ton/mm) | 8/40 | 10/40 | 15/50 | 20/60 | 30/65 | 40/70 | 65/70 |
Download the Stamtec 2-Point Gap Frame Press G2 Series Catalog
The KW1 Series consists of knuckle‑joint forging presses designed for semi‑hot forming and thick‑material shaping. The knuckle‑joint mechanism slows slide velocity near bottom dead center and provides a long dwell period, improving precision and reducing snap‑through forces.
These presses are effective for forging and drawing thick sheet material, especially when paired with feeder or transfer systems. The wet clutch system provides high torque at low air pressure, low vibration, and long service life.
Model | KW1‑300 | KW1‑400 | KW1‑500 | KW1‑650 | KW1‑800 | KW1‑1000 |
Capacity (US tons) | 330.69 | 440.93 | 551.16 | 716.5 | 881.85 | 1102.31 |
Capacity (metric tons) | 300 | 400 | 500 | 650 | 800 | 1000 |
Rated Tonnage Point (in.) | 0.32 | 0.32 | 0.32 | 0.32 | 0.32 | 0.32 |
Stroke (in.) | 4.72 | 4.72 | 5.91 | 5.91 | 9.84 | 7.87 (9.84) |
Speed (SPM) | 20–40 (20–45) | 20–40 (20–45) | 20–40 | 20–40 | 20–35 | 20–40 (20–35) |
Slide Adjustment (in.) | 0.59 | 0.59 | 0.59 | 0.59 | 0.59 | 0.59 |
Die Height (in.) | 17.72 | 17.72 | 17.72 | 17.72 | 17.72 | 17.72 |
Bolster Area (in.) | 43.31×37.40 | 43.31×37.40 | 49.21×39.37 | 59.06×39.37 | 59.06×39.37 | 62.99×39.37 |
Bolster Thickness (in.) | 7.09 | 7.09 | 8.66 | 8.66 | 9.84 | 9.84 |
Slide Area (in.) | 43.31×33.47 | 43.31×33.47 | 49.21×39.37 | 59.06×39.37 | 59.06×39.37 | 62.99×39.37 |
Working Height (in.) | 35.43 | 35.43 | 46.65 | 49.8 | 51.18 | 22.21 |
Slide Opening (in.) | 23.62×22.44 | 23.62×22.44 | 23.62×22.44 | 23.62×22.44 | 23.62×30.32 | 23.62×27.56 |
Max Upper Die Weight (lbs) | 2204.62 | 2204.62 | 3306.93 | 3858.09 | 3858.09 | 3858.09 |
Main Motor (HP × poles) | 30×4 | 30×4 | 50×4 | 60×4 | 75×4 | 100×4 |
Download the Stamtec KW1 Semi‑Hot Forging Press Catalog
Category | WF1 Series | WF2 Series | KW1 Semi‑Hot Series |
Forming Temperature | Warm / Hot | Warm / Hot | Semi‑Hot |
Drive System | Eccentric | Eccentric | Knuckle‑Joint |
Tonnage Range | 400–600 tons | 800–3200 tons | 300–1000 tons |
Typical Part Size | Medium | Medium–Large | Small–Medium (thick material) |
Stroke Range | 6.89–7.87 in | 9.84–14.17 in | 4.72–9.84 in |
Speed Range | 85–100 SPM | 42–75 SPM | 20–45 SPM |
Key Strength | Stable warm/hot forming | High‑capacity deep deformation | Precision forming with long dwell |
Ideal For | Automotive, appliance, industrial | Large automotive & structural | Coining, thick‑material shaping |
Best for manufacturers producing medium‑sized parts requiring elevated‑temperature forming with moderate tonnage and compact footprint.
Ideal for large components, deep deformation, and high‑strength materials requiring the highest capacities and largest bed sizes.
Best for semi‑hot forming, coining, and applications requiring long dwell, reduced snap‑through, and precise control at elevated temperatures.
Use this form to let us know what part(s) you're looking for and we'll get a quote to you ASAP. To get a quote sooner, call us at 800-863-3164 Monday to Friday during normal business hours.
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