STE Series Closed Double-Point Precision Punch Press

Q1 What are the exclusive core advantages and performance data of STE series?

1. Integral closed H-frame structure

   
   

   Adopts thickened high-strength steel integral welding and high-temperature stress relief treatment, with full-load frame deflection ≤ 0.01mm. The closed structure greatly enhances rigidity and anti-vibration performance, ensuring no deformation or vibration under 24-hour heavy-load continuous operation, and effectively extending the service life of molds and equipment.
   
   
2. Dual-crankshaft synchronous drive system

   
   

   Equipped with two forged 42CrMo alloy steel crankshafts (Rockwell hardness HRC 52–56), adopting precision synchronous transmission technology. The left and right crankshaft synchronization error is ≤ 0.02mm, realizing uniform force distribution on the entire working table, thoroughly solving the problem of workpiece offset and deformation caused by unilateral force of single-point presses, and being especially suitable for large-format sheet metal stamping.
   
   
3. High-precision guide and slider system

   
   

   The slider adopts four-corner eight-sided enclosed guide rails, 经过 high-frequency quenching (HRC ≥ 48) and precision grinding, with large contact area and stable guidance. Slider parallelism is ±0.012mm, verticality is ±0.018mm, and fine mold adjustment precision reaches 0.1mm, ensuring high-precision forming of large workpieces.
   
   
4. Reliable safety and energy-saving configuration

   
   

   Equipped with OMPI dry clutch-brake, hydraulic overload protection and infrared photoelectric safety light curtain, realizing emergency shutdown within 0.03s under 120% overload impact, effectively protecting equipment, molds and operators. Compared with ordinary closed double-point presses of the same tonnage, the overall energy consumption is reduced by 28%–35%, and the 72-hour continuous stamping test achieves 648,000 cycles with zero unplanned downtime.
   
   
5. Premium configuration for stability

   
   

   Adopts Siemens PLC and touch screen control system, Japan SMC pneumatic components, NSK precision bearings and NOK oil seals, with centralized lubrication system, ensuring stable operation, low failure rate and convenient daily maintenance.

Q3 Application Scenarios & Model Selection Guide

• 160T–200T Medium tonnage: Suitable for automotive small structural parts, home appliance panels and large hardware stamping, balancing rigidity and cost performance, and is the mainstream model for medium-scale mass production.
• 260T–315T Large tonnage: Ideal for automotive structural parts, thick plate forming and oversized workpiece stamping, with ultra-high rigidity and stable performance, meeting the needs of heavy-load and high-precision continuous production.
• Automatic line matching: Perfectly compatible with Qiaosen MT material racks (powered/non-powered), SML thin plate levelers and NC servo feeders, realizing seamless connection of feeding, leveling and stamping, and building an unmanned intelligent stamping production line.

Q4 Real Customer On-site Application Data

• Precision performance: The overall precision attenuation is only 0.012mm, and the dimensional stability of finished workpieces is excellent, with a defective rate controlled below 0.3%.
• Equipment performance: The annual maintenance cost is 40% lower than that of ordinary closed double-point presses, and there is no core component failure, ensuring stable production efficiency.
• Production efficiency: Compared with the original equipment, the overall production efficiency is improved by 26%, and the mold wear rate is reduced by 45%.

Q5 After-sales Service Support

Conclusion