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Case Analysis: Qiaosen ST Deep‑Throat Series Solves Wide‑Die & Large‑Part Stamping Bottlenecks

2026-05-19

1. Project Background & Customer Pain Points

A professional home‑appliance hardware manufacturer in Guangdong mainly produces large‑size cabinet shells, long‑form support brackets and wide progressive‑die stamping parts.

The original standard‑throat C‑frame punch presses had insufficient throat depth, unable to install wide‑format progressive dies. Eccentric load during large‑area stamping caused frame deflection, unstable precision, high defect rates and limited production capacity.

To expand product range and improve stability, the customer purchased 2 units of Qiaosen STA‑160DT‑sv deep‑throat servo presses in mid‑2024.

2. Core Technical Parameters of ST Deep‑Throat Model

Qiaosen ST Deep‑Throat Series adopts reinforced integral frame with extended throat depth, keeping high rigidity and JIS Class 1 precision under large eccentric load.

Table 1: Key Specifications of STA‑160DT‑sv

Item	Specification
Nominal Pressure	160 Ton
Throat Depth	550 mm
Full‑Load Stable SPM	50–80
Repeat Positioning Accuracy	≤±0.003 mm
Unit Energy Consumption	0.68 kWh/h

3. Implementation & Measurable Results

After 11‑month continuous two‑shift production, the customer achieved breakthrough improvements in die compatibility, precision stability and production efficiency.

Table 2: Production Performance Before vs After Upgrade

Indicator	Ordinary Standard‑Throat Press	Qiaosen STA‑160DT‑sv	Improvement
Max Compatible Die Width	≤600 mm	≤900 mm	Wider stamping range
Product Defect Rate	0.72%	≤0.025%	↓96.5%
Daily Output per Machine	8,100 pcs	12,400 pcs	↑53%
Mold Service Life	110,000 pcs	350,000 pcs	↑218%
Investment Payback Period	—	8 months	Fast ROI

4. Case Conclusion

This case fully proves that Qiaosen ST Deep‑Throat Series effectively solves the bottleneck of insufficient working space and poor anti‑eccentric‑load performance of ordinary C‑frame presses.

The extended deep‑throat design enables wide progressive‑die and large‑size part stamping, while servo drive ensures stable precision and long mold life. It is an ideal upgrade solution for home appliances, electrical enclosures, solar hardware and automotive large‑component manufacturers.

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