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ST Series Punch Presses: Full‑Range Mechanical & Servo Solutions for Precision Stamping

2026-05-15

In the evolving global metal stamping industry, manufacturers require one‑stop stamping equipment covering general‑purpose production, high‑speed precision processing and heavy‑duty thick‑plate forming. Dongguan Qiaosen Machinery officially launches the ST Series, a complete lineup including ST, STC, STA, STD and STE sub‑models, covering 25–315 tons. Integrating C‑frame / H‑frame structures, mechanical and servo drive technologies, the ST series serves automotive parts, electronics, home appliances and new‑energy hardware industries with stable precision, high efficiency and low energy consumption.

I. Core Technical Highlights & Main Model Parameters

The Qiaosen ST series includes standard mechanical presses, double‑crank reinforced presses, single‑crank servo presses, heavy‑duty H‑frame servo presses and high‑speed eccentric gear servo presses, fully meeting diversified stamping demands. All models comply with JIS Class 1 precision standard, adopt 42CrMo forged crankshaft and wear‑resistant bronze bushing for long‑term stable operation.

Table 1: Key Technical Parameters of Main ST Series Models

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
STE‑80sv	High‑Speed Eccentric‑Gear Servo	80	70–100	±0.003 mm	0.66

II. Professional Q&A for ST Series Selection

Q: How to choose models from the full ST series?

A: ST/STC for general mass production; STA/STE for high‑speed electronic precision parts; STD for thick‑plate high‑strength steel automotive components. Reserve 20% safety tonnage for heavy‑load working conditions.

Q: What are the advantages of servo models over mechanical ones?

A: Servo‑driven ST series supports 9 programmable stamping curves for deep drawing and slow forming, delivering 15–20% energy saving, 2–3 times higher precision and over 230% longer mold life than traditional mechanical presses.

III. Real‑World User Application & Performance Improvement

A leading Guangdong stamping manufacturer deployed a mixed production line of Qiaosen ST series models in 2024, replacing old ordinary mechanical presses. After 12‑month two‑shift continuous production, remarkable upgrades were achieved.

Table 2: Production Performance Before & After Equipment Upgrade

Indicator	Ordinary Mixed Presses	Qiaosen ST Series	Improvement
Overall 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	48,000 CNY	19,500 CNY	↓59%
Investment Payback Period	—	9 months	Fast ROI

IV. Conclusion

The Qiaosen ST Series provides a complete stamping equipment ecosystem from light‑duty thin‑plate precision parts to heavy‑duty high‑strength steel components. With high rigidity, stable precision, flexible servo control and cost‑effective performance, it helps global stamping manufacturers improve production efficiency, reduce scrap rate and lower long‑term operational costs.

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