STV Series Closed Single-Point Single-Crank Precision Punch Press

Q1 Exclusive Core Advantages & Lab Test Data

1. One-piece closed H-frame (full steel welded)

   
   

   High-temperature stress relieved, full-load deflection ≤ 0.01mm. Much higher rigidity than open/ semi-closed presses; minimal vibration under 24/7 heavy stamping.
   
   
2. High-grade crankshaft & transmission

   
   

   Forged 42CrMo alloy steel crankshaft (HRC 52–56). Strength 1.3× higher than 45# steel, fatigue life +210%. All gears precision ground; low noise, long service life.
   
   
3. Precision & guide system

   
   

   2-corner 6-sided enclosed guide, high-frequency hardened (≥HRC 48) and precision ground.
   
   
   • Slider parallelism: ±0.01mm
   • Slider verticality: ±0.015mm
   • Fine adjustment: 0.1mm
   • Max stable speed: 120 SPM
   
   
4. • Emergency stop: ≤0.03s at 120% overload
   • 72h continuous test: 648,000 strokes, zero downtime
   • Mold wear reduced by 45% vs open presses
   • Power consumption -30% vs standard closed presses
     Safety, energy-saving & durability

     
     

     OMPI dry clutch-brake + hydraulic overload protection + infrared safety light curtain.
     
     

Q2 Full Model Specifications

Q3 Model Selection Guide

• 110T (STV-110)

  
  

  Balanced rigidity & cost; ideal for medium precision, medium load mass production and light deep drawing.
  
  
• 160T (STV-160)

  
  

  Most popular closed model; excellent anti-eccentric load, perfect for automotive components & furniture hardware long-hour stamping.
  
  
• 200T (STV-200)

  
  

  Ultimate rigidity; for heavy thick plate, deep drawing, high-precision progressive dies where stability is critical.
  
  
• Auto line compatibility

  
  

  Fully matches Qiaosen MT uncoiler + GO 2-in-1 straightener for unmanned progressive stamping lines.
  
  

Q4 Real Customer Application Data

• Auto parts factory (STV-160)

  
  

  12h/day continuous operation, 12 months running.

  
  

  Precision attenuation: only 0.01mm; defect rate <0.3%; maintenance cost -40% vs open presses.
  
  
• Deep drawing manufacturer (STV-200)

  
  

  Stable thick steel forming; efficiency +25%; mold life +50% compared with semi-closed presses.
  
  

Send your inquiry directly to us