Product Introduction
The tonnage capacity starts from 300 ton up to 1200 ton. The press is constructed with welded heavy boxed type frames, and it is pressurized with tie rods to 150% of press capacity for better deflection rating. Our center drive design maximizes the transmission performance and reduce inertias, which increase the service life of the press. STF series presses is great for large progressive stamping, through the windows 3-axis transfer stamping, and press to press robotic integrated applications.
STF series presses are produced by Qiaosen company, which built to meet or exceed JIS Class 1 accuracy standards. Qiaosen adopt high strength steel frames and Quenching & Grinding Process for Slide-Guide，which can make the press machine have minimizing deflection and high accuracy and provide increased tool life.
Forged 42CrMo alloy material crankshaft ，precision-machined gears and other drive train components are designed for smooth power transmission, quiet operation and long life. Presses below 600 tons use pneumatic wet clutch brakes (unibody), while presses above 800 tons use dry clutch brakes (split-type). Adopting "8-Points Slide Guiding" ，its makes the presses has the characteristics higher accuracy and stronger stability.
Can be option equipped with Die Doors, Quick Die Change System, and Moving Bolster to make production safer, more efficient, and more convenient.
Specifications
Technical parameter
| Specifications | Unit | STF-300 | STF-400 | STF-500 | STF-600 | STF-800 | STF-1000 | STF-1200 | |||||||
| Mode | S-type | H-type | S-type | H-type | S-type | H-type | S-type | H-type | S-type | H-type | S-type | H-type | S-type | H-type | |
| Press capacity | Ton | 300 | 400 | 500 | 600 | 800 | 1000 | 1200 | |||||||
| Rated tonnage point | mm | 8 | 4 | 8 | 4 | 9 | 5 | 10 | 5 | 12 | 6 | 13 | 7 | 13 | 7 |
| Slide strokes per minute | S.P.M | 20~40 | 30~60 | 20~40 | 30~60 | 20~40 | 30~60 | 20~40 | 30~60 | 15~30 | 25~50 | 10~25 | 20~40 | 10~25 | 20~40 |
| Slide stroke length | mm | 300 | 150 | 300 | 150 | 300 | 150 | 300 | 150 | 350 | 150 | 400 | 200 | 400 | 200 |
| Max die height | mm | 600 | 500 | 650 | 550 | 650 | 550 | 700 | 600 | 800 | 650 | 900 | 700 | 1000 | 800 |
| Slide adjustment amount | mm | 150 | 150 | 150 | 200 | 200 | 250 | 250 | |||||||
| Platform size(optional) | 1 | 2500*1200 | 2800*1300 | 3200*1500 | 3200*1500 | 3200*1500 | 3500*1600 | 3500*1600 | |||||||
| Platform Size (Optional) | 2 | 2800*1300 | 3200*1400 | 3500*1500 | 3500*1500 | 3500*1600 | 4000*1600 | 4000*1600 | |||||||
| Platform Size (Optional) | 3 | 3200*1400 | 3600*1400 | 3800*1600 | 4000*1600 | 4000*1600 | 4500*1600 | 4500*1600 | |||||||
| Side opening | mm | 900*650 | 1100*700 | 1200*700 | 1200*750 | 1400*850 | 1600*950 | 1600*1050 | |||||||
| Main motor power | KW*P | 37*4 | 45*4 | 55*4 | 75*4 | 90*4 | 110*4 | 132*4 | |||||||
| Air pressure | kg*cm² | 6 | 6 | 6 | 6 | 6 | 6 | 6 | |||||||
| Press accuracy grade | Grade | JIS 1 | JIS 1 | JIS 1 | JIS 1 | JIS 1 | JIS 1 | JIS 1 | |||||||
| Our company is ready to carry out research and improvement work at any time. Therefore, the size design characteristics specified in this catalogue can be changed without further notice. | |||||||||||||||
● The press frame is composed of three parts (top seat, middle platform body, and base), and finally connected with a reinforcing rod to form a solid lock.
● The frame and slider have high rigidity (deformation) of 1/9000: small deformation and long accuracy retention time.
● Presses below 600 tons use pneumatic wet clutch brakes (unibody), while presses above 800 tons use dry clutch brakes (split-type).
● The slider adopts 8-points slide guiding, which can bear large eccentric loads, ensuring long-term and stable maintenance of stamping accuracy.
● The slide rail adopts the “high-frequency quenching” and “rail grinding process”: low wear, high precision, long accuracy retention time, and improved mold service life.
● Adopting a forced thin oil circulation lubrication device: energy-saving, environmentally friendly, equipped with automatic alarm function, which can increase the stamping frequency by adjusting the oil volume.
● The crankshaft is made of high-strength alloy material 42CrMo, which is 1.3 times stronger than 45 steel and has a longer service life.
● The copper sleeve adopts tin phosphorus bronze ZQSn10-1, which has a strength 1.5 times higher than ordinary BC6 brass. It adopts a highly sensitive hydraulic overload protection device, which can effectively protect the service life of the punching machine and mold.
● Standard Japanese SMC pressure regulating valve, oil mist filter, and air filter.
● Standard configuration: German Siemens touch screen and Siemens motor.
● Optional die cushion.
● Optional Moving bolster
Standard Confirguration
| > | Hydraulic overload protection device | > | Air blowing device |
| > | Electric slider adjusting device | > | Mechanical shockproof feet |
| > | Variable frequency variable speed motor (adjustable speed) | > | Mis-feeding detection device reserved interface |
| > | Electronic cam device | > | Maintenance tools and toolbox |
| > | Digital die height indicator | > | Main motor reversing device |
| > | Slider and stamping tools balance device | > | Light Curtain (Safety Guarding) |
| > | Rotating cam controller | > | Wet Clutch |
| > | Crankshaft angle indicator | > | Electric grease lubrication device |
| > | Electromagnetic counter | > | Touch screen (pre-break, pre-load) |
| > | Air source connector | > | Mobile electric control cabinet and console |
| > | Second degree falling protecting device | > | LED die lighting |
| > | Forced Thin Re-Circulating Oil Lubrication System Device | > | 8-Points Slide Guiding |
Optional Configuration
| > | Customization Per Customer Requirement | > | Tonnage Monitor |
| > | Die Cushion | > | Die Doors |
| > | Quick Die Change System | > | Moving bolster |
| > | Turnkey System with Coil Feedline and Automation System | > | Anti-Vibration Isolator |
