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STC Series Double Crank Punch Press

2026-05-21

1. Project Background & Customer Pain Points

A large household appliance parts manufacturer focuses on producing medium and large metal structural components. The old single-crank presses suffered from insufficient body rigidity, obvious deflection under heavy load, unstable finished product precision, high defective rate and short mould service life, which restricted mass production efficiency.

To optimize production quality and output, the customer adopted multiple sets of Qiaosen STC double crank series presses for workshop upgrading.

2. Main Technical Parameters

Table 1: STC Series Core Parameters

Model	Ton	Full Load SPM	Slider Parallelism	Repeat Accuracy	Power Consumption
STC-110	110	50-90	≤0.018mm/300mm	±0.006mm	0.75kWh/h
STC-160	160	45-80	≤0.015mm/300mm	±0.005mm	0.85kWh/h
STC-200	200	40-70	≤0.015mm/300mm	±0.005mm	0.90kWh/h

3. Application Effect Comparison

Table 2: Production Data Comparison

Item	Old Single Crank Press	STC Double Crank Press	Optimization Effect
Defect Rate	0.70%	≤0.03%	Sharp drop
Daily Output	7500pcs	11600pcs	Up 55%
Mold Lifespan	100000pcs	330000pcs	Greatly extended
Workshop Noise	83dB	73dB	More environment-friendly
Payback Cycle	—	8 months	Quick return on investment

4. Case Conclusion

Qiaosen STC series adopts double crank structure with stronger overall rigidity, better balance performance and stronger anti-deflection capacity. It is perfectly suitable for wide progressive die stamping and medium-large size hardware parts processing.

Stable running accuracy effectively reduces production defects, prolongs mould life, cuts down later maintenance cost, and is the preferred standard stamping equipment for home appliances, hardware and auto parts industries.

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Tel：86-0769-26628519

email：titi@qiaosenmachinery.com

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Dongguan Qiaosen Machinery Co., Ltd.

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