2-Die 4-Blow cold heading machine configuration concentrates forming within two die cavities while expanding impact sequencing to four stages. Material is progressively shaped through structured blow coordination, allowing deformation energy to be distributed gradually across the forming cycle.
Increasing blow count within a limited die framework improves intermediate correction capability and enhances volume redistribution control. Additional impact stages allow more detailed structural layering before final head stabilization, supporting improved symmetry and dimensional repeatability.
Compared with multi-die systems, this configuration maintains a simpler die arrangement while delivering deeper forming precision through staged impact management. Balanced architecture makes it suitable for manufacturers seeking higher geometry control without expanding to four-die systems.
TAICHUANG supplies 2-Die 4-Blow cold heading machine solutions for fastener producers aiming to enhance forming depth while maintaining controlled equipment footprint.
|
Model |
Max. Blank Diameter/mm |
Max.Blank Length/mm |
Max.Cut-off Length/mm |
Stroke/mm |
Capacity/pcs/min |
Main Die Diameter/mm |
Cut-off Die Diameter/mm |
Punch Die Diameter/mm |
|
YH2415 |
Φ6.5 |
50 |
65 |
100 |
60-90 |
Φ46*95*2 |
Φ19*35 |
Φ31*72*4 |
|
YH2420 |
Φ9 |
70 |
80 |
110 |
50-80 |
Φ50*120*2 |
Φ22*40 |
Φ35*80*4 |
|
YH2425 |
Φ10 |
75 |
90 |
140 |
45-65 |
Φ58*150*2 |
Φ35*50 |
Φ38*120*4 |
|
YH2430 |
Φ12.5 |
100 |
125 |
156 |
40-60 |
Φ70*150*2 |
Φ38*50 |
Φ50*130*4 |
|
YH2440 |
Φ15 |
120 |
140 |
200 |
35-50 |
Φ80*220*2 |
Φ45*55 |
Φ58*150*4 |
|
Model |
Cutter Size/mm |
Main Motor Power/kw |
Volume(L*W*H)/m |
Weight/kg |
|
YH2415 |
10*32*80 |
Level 6 -4kw |
2.50*1.36*1.25 |
2600 |
|
YH2420 |
12*40*85 |
Level 6 -5.5kw |
2.40*1.25*1.60 |
4000 |
|
YH2425 |
14*45*105 |
Level 6 -15kw |
4.10*1.75*1.79 |
6800 |
|
YH2430 |
16*50*125 |
Level 6 - 18.5kw |
4.05*1.80*1.90 |
8300 |
|
YH2440 |
20*65*125 |
Level 6 - 22kw |
5.00*1.90*1.90 |
15600 |
Four coordinated blows perform distinct deformation roles:
• Initial material gathering
• Transitional shaping
• Volume refinement
• Final geometry definition
Spreading deformation energy across four impacts reduces sudden stress concentration and allows smoother structural progression.
Dual-die layout ensures controlled transfer between major shaping phases.
Maintaining the 2-Die 4-Blow Cold Heading Machine limits tooling complexity while extended blow sequencing increases shaping flexibility.
Configuration becomes relevant when:
Head mass requires gradual redistribution
Tolerance consistency needs improvement
Two-blow systems show geometry limitations
Multi-die expansion is not operationally preferred
Intermediate positioning between 2-Die 2-Blow and 4-Die 4-Blow systems provides a balanced upgrade path.
Controlled multi-impact coordination improves operational characteristics such as:
Head concentricity consistency
Reduced deformation shock
Improved thickness uniformity
Stable batch repeatability
Structured energy distribution supports medium to high volume fastener production with enhanced dimensional control.
1. Why increase blow count instead of die count?
Increasing blows improves deformation layering while maintaining manageable die complexity and machine footprint.
2. How does it differ from 4-Die 4-Blow configuration?
2-Die 4-Blow concentrates forming within fewer dies while expanding impact sequencing. Four-die systems segment deformation spatially across more stations.
3. Is tooling maintenance simpler than multi-die systems?
Fewer dies reduce cavity management complexity, although blow coordination becomes more advanced.
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Email: sales03@gdtaichuang.cn
Telephone: +86-757-85755398
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If you have any enquiry about quotation or cooperation, please feel free to email us at sales03@gdtaichuang.cn or use the following inquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.
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