STB Series Semi-Closed Single-Point Single-Crank Precision Punch Press

Q1 What are exclusive core advantages and laboratory test data of STB series?

1. Semi-closed high-rigidity frame
   
   
   Integral thickened steel semi-closed welded frame with high-temperature stress relief treatment. Full-load frame deformation ≤ 0.015mm, far better than open-type presses, with outstanding anti-vibration and anti-deformation performance for long-hour heavy-duty operation.
2. Single crankshaft & transmission structure
   
   
   Single forged 42CrMo alloy steel crankshaft, Rockwell hardness HRC 52–56. Structural strength is 1.3 times higher than ordinary 45# steel crankshaft, fatigue service life increased by 2.1 times. Equipped with double balance cylinders, effectively eliminate slider vibration and running imbalance. Custom wear-resistant phosphor bronze bushing, 1.5 times higher wear resistance than regular brass.
3. Precision performance parameters
   
   
   6-side enclosed precision guide rail, high-frequency quenched hardness ≥ HRC 48. Slider parallelism ±0.012mm, verticality ±0.018mm. Fine mold adjustment precision reaches 0.1mm. Maximum stable stamping speed: 130 strokes per minute.
4. Safety, energy-saving & durability data
   
   
   Configured with dual solenoid valve, pneumatic brake system and mechanical overload protection. Emergency shutdown within 0.03s under 120% overrated load impact. 72-hour non-stop continuous stamping test: 648,000 cycles with zero unplanned downtime, precision attenuation extremely low, mold wear reduced by 42% compared with open-type presses. Under same tonnage, overall energy consumption is 28% lower than mainstream semi-closed presses in the market.

Q2 Full model specifications

Q3 Targeted model selection suggestions

• Medium heavy-duty processing (110T): Choose STB-110. Balanced rigidity and cost performance, ideal for conventional hardware stamping and light deep drawing.
• Large-scale continuous mass production (160T): Select STB-160. Optimal anti-eccentric load performance, most widely used model for automotive small parts and furniture hardware long-hour stamping.
• Heavy thick plate & deep drawing (200T): Opt for STB-200. Ultra-high rigid frame meets heavy-load deep drawing and thick metal sheet forming demands.
• Automatic line matching: Perfectly adapts to Qiaosen MT material rack and GO 2-in-1 straightener, building seamless unmanned stamping production system.