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ST Series Mechanical & Servo Presses Improve Stamping Performance for Automotive & Electronic Hardware

2026-05-15

1. Project Background & Customer Pain Points

A large metal stamping manufacturer in Guangdong produces automotive brackets, electronic terminals and home‑appliance hardware. The factory previously used mixed ordinary mechanical presses with unstable precision, low production efficiency, high defect rates and short mold life.

To upgrade its production line for both general‑purpose and high‑precision mass stamping, the customer selected the full range of Qiaosen ST Series, including ST‑110 mechanical press, STC‑160 double‑crank mechanical press, STA‑160sv servo press and STD‑250sv heavy‑duty H‑frame servo press.

2. Core Model Parameters of ST Series

The ST series covers mechanical and servo types for different working conditions, with key specifications as below.

Table 1: Main Technical Parameters of Qiaosen ST Series

Model	Type	Nominal Pressure (Ton)	Full‑Load SPM	Repeat Positioning Accuracy	Energy Consumption (kWh/h)
ST‑110	C‑frame mechanical	110	50–90	±0.006 mm	0.75
STC‑160	Double‑crank mechanical	160	45–80	±0.005 mm	0.85
STA‑160sv	C‑frame servo	160	20–100	±0.003 mm	0.68
STD‑250sv	H‑frame heavy‑duty servo	250	50–60	±0.003 mm	0.70

3. Implementation & Measurable Results

After 12‑month continuous two‑shift production, the overall production indicators were greatly improved by matching different ST‑series models to different stamping processes.

Table 2: Production Performance Before vs After Upgrade

Indicator	Ordinary Mixed Presses	Qiaosen ST Series	Improvement
Overall Product Defect Rate	0.85%	≤0.03%	↓96.5%
Average Daily Output per Machine	7,200 pcs	11,800 pcs	↑64%
Average Mold Service Life	95,000 pcs	320,000 pcs	↑237%
Annual Maintenance Cost (4‑machine group)	48,000 CNY	19,500 CNY	↓59%
Investment Payback Period	—	9 months	Fast ROI

4. Case Conclusion

Qiaosen ST Series integrates mechanical and servo presses with C‑frame and H‑frame structures, forming a complete stamping solution for light‑duty electronic parts, medium‑duty home‑appliance hardware and heavy‑duty automotive high‑strength steel components.

Compared with traditional ordinary presses, the ST series features higher rigidity, better precision stability, programmable stamping curves and lower energy consumption, effectively helping manufacturers improve production efficiency, reduce scrap rate and cut long‑term production costs.

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