1-Die 2-Blow cold heading machine configuration enables staged bolt head formation through a controlled two-impact sequence inside a single die cavity. Material is cut to length, transferred, and progressively deformed to achieve final head geometry while maintaining structural integrity.
Compared with single-blow systems, this structure provides improved material gathering and reduced deformation shock, helping maintain surface quality and dimensional stability. The simplified die layout also reduces tooling complexity, making setup and maintenance more manageable in continuous production environments.
Cold heading processes using this configuration are commonly applied where bolt geometry is straightforward but production reliability and output consistency remain essential. Balanced forming force distribution contributes to predictable shaping performance across medium to high volume manufacturing runs.
TAICHUANG supplies 1-Die 2-Blow cold heading machine solutions for customers seeking dependable bolt forming capability without unnecessary structural complexity.
|
Modle |
D3-20 |
D4-40 |
D4-30GS |
D5-30GS |
D5-50GS |
D5-63GS |
|
Max Blank Diameter/mm |
Φ0.8-4.0 |
Φ2.0-5.0 |
Φ2.0-5.0 |
Φ3.0-7.0 |
Φ3.0-7.0 |
Φ3.0-7.0 |
|
Max Blank Length/mm |
20 |
40 |
30 |
30 |
50 |
63 |
|
Max Cut-off Length/mm |
30 |
48 |
48 |
55 |
75 |
80 |
|
Stroke/mm |
37 |
68 |
60 |
82 |
92 |
107 |
|
Capacity/pcs/min |
150-200 |
150-180 |
180-200 |
160-180 |
160-180 |
130-150 |
|
Main Die Diameter/mm |
Φ20*35 |
Φ30*60 |
Φ30*50 |
Φ34.5*55 |
Φ34.5*67 |
Φ34.5*80 |
|
The Initial Punch Die Diameter/mm |
Φ18*50 |
Φ25*65 |
Φ25*65 |
Φ35*75 |
Φ35*75 |
Φ35*75 |
|
The Precise Punch Die Diameter/mm |
Φ18*50 |
Φ25*65 |
Φ25*65 |
Φ31*75 |
Φ31*75 |
Φ31*75 |
|
Cut-off Die Diameter/mm |
Φ13*25 |
Φ15*30 |
Φ15*30 |
Φ19*35 |
Φ19*35 |
Φ19*35 |
|
Cutter Size/mm |
6*25*42 |
10*32*72 |
10*32*72 |
10*35*72 |
10*35*72 |
10*35*72 |
|
Main Motor Power/kw |
1.1 |
2.2 |
2.2 |
3.0 |
3.0 |
3.0 |
|
Volume (L*W*H)/cm |
145*88*112 |
195*105*110 |
200*103*135 |
240*120*138 |
230*119*135 |
230*120*138 |
|
Weight/kg |
700 |
1100 |
1400 |
2000 |
2000 |
2000 |
|
Modle |
D5-76GS |
D5-60 |
D5-80 |
D5-100 |
D5-150 |
||||||||
|
Max Blank Diameter/mm |
Φ3.0*7.0 |
Φ3.0*7.0 |
Φ3.0*7.0 |
Φ3.0*7.0 |
Φ3.0*7.0 |
||||||||
|
Max Blank Length/mm |
76 |
60 |
80 |
100 |
150 |
||||||||
|
Max Cut-off Length/mm |
95 |
80 |
95 |
120 |
168 |
||||||||
|
Stroke/mm |
120 |
92 |
110 |
130 |
190 |
||||||||
|
Capacity/pcs/min |
110-130 |
120-140 |
90-110 |
80-100 |
60-80 |
||||||||
|
Main Die Diameter/mm |
Φ34.5*100 |
Φ34.5*80 |
Φ34.5*100 |
Φ34.5*120 |
Φ40*180 |
||||||||
|
The Initial Punch Die Diameter/mm |
Φ35*75 |
Φ31*75 |
Φ31*75 |
Φ31*80 |
Φ35*100 |
||||||||
|
The Precise Punch Die Diameter/mm |
Φ31*75 |
Φ31*75 |
Φ31*75 |
Φ31*80 |
Φ35*100 |
||||||||
|
Cut-off Die Diameter/mm |
Φ19*35 |
Φ19*35 |
Φ19*35 |
Φ19*35 |
Φ20*35 |
||||||||
|
Cutter Size/mm |
10*35*72 |
10*35*72 |
10*35*72 |
10*35*72 |
10*35*72 |
||||||||
|
Main Motor Power/kw |
3.0 |
3.0 |
2.2 |
2.2 |
3.0 |
||||||||
|
Volume (L*W*H)/cm |
230*120*138 |
220*115*115 |
225*112*117 |
270*116*115 |
260*115*135 |
||||||||
|
Weight/kg |
2000 |
1800 |
1850 |
2200 |
2800 |
||||||||
|
Model |
Max. Blank Diameter/mm |
Blank Length/mm |
Cut-off Length/mm |
Stroke/mm |
Capacity/pcs/min |
Main Die Diameter/mm |
The Initial Punch Die Diameter/mm |
The Precise Punch Die Diameter/mm |
Cut-off Die Diameter/mm |
||||
|
D8-90 |
Φ5.0-11 |
90 |
120 |
130 |
80-90 |
Φ60*120 |
Φ40*120 |
Φ40*120 |
Φ28*45 |
||||
|
D8-120 |
Φ5.0-11 |
120 |
140 |
156 |
60-80 |
Φ60*160 |
Φ40*120 |
Φ40*120 |
Φ28*45 |
||||
|
D8-150 |
Φ5.0-11 |
150 |
180 |
190 |
60-70 |
Φ60*190 |
Φ40*120 |
Φ40*120 |
Φ28*45 |
||||
|
D8-200 |
Φ5.0-11 |
200 |
220 |
250 |
40-50 |
Φ60*240 |
Φ40*150 |
Φ40*150 |
Φ28*60 |
||||
|
D8-250 |
Φ5.0-11 |
250 |
270 |
290 |
30-45 |
Φ60*290 |
Φ40*150 |
Φ40*150 |
Φ28*60 |
||||
|
D8-300 |
Φ5.0-11 |
300 |
330 |
365 |
25-35 |
Φ60*360 |
Φ40*180 |
Φ40*180 |
Φ28*60 |
||||
|
D10-120 |
Φ6.0-13 |
120 |
140 |
150 |
50-60 |
Φ80*160 |
Φ55*150 |
Φ55*150 |
Φ40*50 |
||||
|
D10-150 |
Φ6.0-13 |
150 |
180 |
210 |
45-55 |
Φ80*190 |
Φ55*150 |
ΦΦ55*150 |
Φ40*50 |
||||
|
D10-220 |
Φ6.0-13 |
220 |
240 |
260 |
40-50 |
Φ80*260 |
Φ55*150 |
ΦΦ55*150 |
Φ40*50 |
||||
|
D10-300 |
Φ6.0-13 |
300 |
320 |
350 |
25-35 |
Φ80*360 |
Φ55*180 |
Φ55*180 |
Φ40*50 |
||||
|
Model |
Cutter Size/mm |
Main Motor Power/kw |
Volume(L*W*H)/m |
Weight/kg |
|
D8-90 |
12*42*90 |
Level 6 - 7.5kw |
3.40*1.60*1.60 |
4200 |
|
D8-120 |
12*42*90 |
Level 6 - 7.5kw |
3.45*1.68*1.60 |
4200 |
|
D8-150 |
12*42*90 |
Level 6 - 7.5kw |
3.90*1.60*1.80 |
4300 |
|
D8-200 |
12*42*90 |
Level 8 - 7.5kw |
4.15*1.60*1.85 |
5800 |
|
D8-250 |
12*42*90 |
Level 8 - 7.5kw |
4.30*1.60*1.90 |
6100 |
|
D8-300 |
12*42*90 |
Level 6 - 11kw |
5.43*1.95*1.87 |
8500 |
|
D10-120 |
16*55*115 |
Level 6 - 11kw |
4.00*1.82*1.68 |
7300 |
|
D10-150 |
16*55*115 |
Level 6 - 11kw |
4.10*1.82*1.70 |
7700 |
|
D10-220 |
16*55*115 |
Level 6 - 11kw |
5.00*1.82*1.70 |
8500 |
|
D10-300 |
16*55*115 |
Level 6 - 11kw |
5.50*1.82*2.00 |
10400 |
Material is transferred into a single die cavity where two progressive blows perform staged deformation.
First impact initiates material gathering and pre-forming.
Second impact completes head shaping with improved flow control.
Gradual deformation helps reduce stress concentration and supports consistent head thickness across production cycles.
• Compact footprint for space-sensitive workshops
• Reduced tooling complexity compared with multi-die systems
• Stable impact timing for predictable output
• Efficient head forming for mainstream bolt geometries
• Easier maintenance and die changeover
Standard hex bolts
Flange bolts
Structural bolts
Automotive general fasteners
Industrial hardware components
Appropriate when production focuses on standard bolt designs without complex geometry transitions.
Factories prioritizing reliability, manageable tooling cost, and operational clarity often select this configuration.
1. What is the main advantage of a 1-Die 2-Blow cold heading machine?
Primary advantage lies in structural simplicity combined with effective staged forming. Two blows within one die allow better head shaping than single-blow systems while maintaining compact machine design.
2. What bolt sizes are typically suitable?
Commonly applied for small to medium diameter bolts used in automotive, construction, and general industrial fastening. Final capacity depends on model specification and material grade.
3. Is this configuration suitable for high-strength materials?
Yes, provided that material grade and deformation ratio are within machine limits. Proper die design and forming sequence are critical for high tensile materials.
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