Stamtec’s Mechanical Presses (a.k.a. OBG, OBS, OBI, or C-frame) undergo finite element analysis prior to manufacturing to ensure proper design, superior strength and maximum resistance to deflection
The Stamtec S2 two-point straight side press (a.k.a. double crank press) is designed for stamping large parts or ones that require a large bed area to accommodate progressive or transfer dies. Oftentimes, these types of operations require high tonnage, high flywheel energy, maximum frame or bed rigidity, or some combination thereof. The path of the slide is guided by eight full-length, ninety-degree gibs with nickel-bronze wear plates, offering maximum control, a high degree of accuracy, and ease of adjustment.
TONNAGE RANGE: 110 - 3300
Review the specs, advantages, and features of our S2 double crank press below, and then contact us for more information.
Stamtec mechanical presses can be customized to meet a wider range of SPM, stroke, rating point (BDC), bed, and other specifications and dimensions.
| MODEL S2-165 SPECIFICATIONS | ||
|---|---|---|
| Capacity | US Tons | 165 |
| Metric Tons | 149 | |
| Speed | SPM | 60 ~ 120 |
| Rated tonnage point | in. | 0.236 |
| mm | 6 | |
| Stroke length | in. | 5.91 |
| mm | 150 | |
| Die height | in. | 15.75 |
| mm | 400 | |
| Slide adjustment | in. | 5.91 |
| mm | 150 | |
| Slide area (L - R x F - B) | in. | 60 x 42 |
| mm | 1524 x 1066 | |
| Bolster area (L - R x F - B) | in. | 60 x 42 |
| mm | 1524 x 1066 | |
| Bolster thickness | in. | 5.91 |
| mm | 150 | |
| Working height (floor to top of bolster) | in. | 37 |
| mm | 939 | |
| Side frame opening (window) (F-B x H) | in. | 25 x 17.70 |
| mm | 635 x 450 | |
| MODEL S2-220 SPECIFICATIONS | ||
|---|---|---|
| Capacity | US Tons | 220 |
| Metric Tons | 200 | |
| Speed | SPM | 50 ~ 120 |
| Rated tonnage point | in. | 0.236 |
| mm | 6 | |
| Stroke length | in. | 6.3 |
| mm | 160 | |
| Die height | in. | 19.7 |
| mm | 500 | |
| Slide adjustment | in. | 6.3 |
| mm | 160 | |
| Slide area (L - R x F - B) | in. | 72 x 48 |
| mm | 1828 x 1219 | |
| Bolster area (L - R x F - B) | in. | 72 x 48 |
| mm | 1828 x 1219 | |
| Bolster thickness | in. | 6.3 |
| mm | 160 | |
| Working height (floor to top of bolster) | in. | 39.37 |
| mm | 1000 | |
| Side frame opening (window) (F-B x H) | in. | 31.50 x 19.70 |
| mm | 800 x 500 | |
| MODEL S2-330 SPECIFICATIONS | ||
|---|---|---|
| Capacity | US Tons | 330 |
| Metric Tons | 300 | |
| Speed | SPM | 30 ~ 60 |
| Rated tonnage point | in. | 0.275 |
| mm | 7 | |
| Stroke length | in. | 10.04 |
| mm | 255 | |
| Die height | in. | 26 |
| mm | 660 | |
| Slide adjustment | in. | 8.27 |
| mm | 210 | |
| Slide area (L - R x F - B) | in. | 96 x 50 |
| mm | 2440 x 1270 | |
| Bolster area (L - R x F - B) | in. | 96 x 50 |
| mm | 2440 x 1270 | |
| Bolster thickness | in. | 7.09 |
| mm | 180 | |
| Working height (floor to top of bolster) | in. | 39.37 |
| mm | 1000 | |
| Side frame opening (window) (F-B x H) | in. | 39.37 x 27.56 |
| mm | 1000 x 700 | |
| MODEL S2-440 SPECIFICATIONS | ||
|---|---|---|
| Capacity | US Tons | 440 |
| Metric Tons | 400 | |
| Speed | SPM | 25 ~ 50 |
| Rated tonnage point | in. | 0.275 |
| mm | 7 | |
| Stroke length | in. | 12 |
| mm | 305 | |
| Die height | in. | 30 |
| mm | 762 | |
| Slide adjustment | in. | 9.84 |
| mm | 250 | |
| Slide area (L - R x F - B) | in. | 120 x 55 |
| mm | 3084 x 1397 | |
| Bolster area (L - R x F - B) | in. | 120 x 55 |
| mm | 3084 x 1397 | |
| Bolster thickness | in. | 7.87 |
| mm | 200 | |
| Working height (floor to top of bolster) | in. | 37.4 |
| mm | 950 | |
| Side frame opening (window) (F-B x H) | in. | 47.24 x 31.50 |
| mm | 1200 x 800 | |
| MODEL S2-660 SPECIFICATIONS | ||
|---|---|---|
| Capacity | US Tons | 660 |
| Metric Tons | 600 | |
| Speed | SPM | 25 ~ 45 |
| Rated tonnage point | in. | 0.51 |
| mm | 13 | |
| Stroke length | in. | 13.98 |
| mm | 355 | |
| Die height | in. | 33.98 |
| mm | 863 | |
| Slide adjustment | in. | 10 |
| mm | 254 | |
| Slide area (L - R x F - B) | in. | 144 x 55.11 |
| mm | 3,660 x 1,400 | |
| Bolster area (L - R x F - B) | in. | 144 x 55.11 |
| mm | 3660 x 1400 | |
| Bolster thickness | in. | 7.87 |
| mm | 200 | |
| Working height (floor to top of bolster) | in. | 39.37 |
| mm | 1000 | |
| Side frame opening (window) (F-B x H) | in. | 50 x 31.50 |
| mm | 1270 x 800 | |
Heavy, four-piece tie rod or unitized frame supplies a solid base to resist deflection and provide accurate stampings and longer die life.
Fast-response hydraulic overload relieves the pressure of a tonnage overload in milliseconds, stopping the press immediately and protecting press and dies from damage.
Please contact Stamtec for more details on components for our S2 Series mechanical presses.
STAMTEC IN 60 SECONDS: 
