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Straight Side Tie Rod Frame Eccentric Gear Presses

Short Description:

STN-Series: 300-1600 Tons

STN series is Straight Side Tie Rod Frame 2-Point & 4-Point Mechanical Eccentric Gear Press Machine.

The best choice of press equipment for forming process of large metal forming or stamping, which makes it applicable for forming of large automotive parts. The eccentric gear are adopted for the drive component ,full thin oil circulation lubrication and 8-point guided slide.This design improves the accuracy of the press machine and the lifespan of the stamping die, and can save 20% energy consumption.

Product Detail


Standard / Optional



Product Introduction

STN Press is great for large progressive stamping, through the windows 3-axis transfer stamping, and press to press robotic integrated applications.

STN series presses are produced by Qiaosen machinery, which built to meet or exceed JIS Class 1 accuracy standards.

This series presses are large stroke length,which are great for large stamping parts. Application such as appliances panels or automotive body panels parts are commonly stamped on these press machine.Excellent performance in automatic feed,progressive die or single stroke applications.

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.

Designed with tie-rod structure on the frame for minimal deflection enhance machine durability with accurate parts.

Design makes it easy to integrate automation.Adopting "8-Points Slide Guiding" ,its makes the presses has the characteristics higher accuracy and stronger stability.Plunger guided to reduces lateral force during slide movement for better accuracy.

Column mounted operating panel, intuitive read outs and easy to use, convenient, controls.

 Eccentric gear drive, excellent for deep drawing and a variety of other stamping applications.  It can also be used on any type of application where long forming or drawing is required. It is common that in the production it would requires robotic system or 3-axis transfer systems devices to transfer parts between presses, so the long stroke also serve as time window for the parts handling systems.

Can be option equipped with Die Doors, Quick Die Change System, and Moving Bolster to make production safer, more efficient, and more convenient.


Technical parameter

Specifications Unit STN-300 STN-400 STN-500 STN-600 STN-800 STN-1000 STN-1200 STN-1600
Mode   S-type S-type S-type S-type S-type S-type S-type S-type
Press capacity Ton 300 400 500 600 800 1000 1200 1600
Rating Point mm 13 13 13 13 13 13 13 13
Slide stroke length mm 400 400 500 500 600 600 800 800
Slide strokes per minute S.P.M 15~30 15~30 10~25 10~25 10~20 10~20 10~18 10~18
Max die height mm 800 900 1000 1000 1100 1100 1200 1200
Slide adjustment mm 300 300 400 400 400 400 500 500
Platform Size   (Optional) 1 2500*1200 2800*1300 3200*1500 3200*1500 3200*1500 3500*1600 3500*1600 3500*1600
Platform Size   (Optional) 2 2800*1300 3200*1400 3500*1500 3500*1500 3500*1600 4000*1600 4000*1600 4000*1600
Platform Size   (Optional) 3 3200*1400 3600*1400 3800*1600 4000*1600 4000*1600 4500*1600 4500*1600 4500*1600
Trolley Height mm 600 600 650 650 650 750 750 750
Side opening(width) mm 1200 1200 1400 1400 1600 1600 1600 1600
Main motor power KW*P 45*4 55*4 75*4 90*4 110*4 132*4 160*4 185*4
Air pressure kg*cm² 6 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 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.  

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  • ● 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