The 8-station long stroke nut former represents an advanced level within cold heading machine systems for nut production. By increasing both the number of forming stages and the available stroke length, this configuration allows material deformation to be distributed across a longer and more controlled forming path.
Compared with 6- or 7-station nut formers, the additional stations provide greater flexibility in shaping complex contours, internal features, and transition zones. The long stroke design further supports deeper forming requirements by allowing gradual deformation rather than forcing material flow within limited travel.
This type of nut former is typically evaluated when standard configurations approach their forming limits. TAICHUANG presents this solution for customers who require a higher degree of forming freedom and wish to reduce process risk when producing complex or structurally demanding nuts.
|
Model |
Unit |
SJNF 11B-8SL |
SJNF 14B-8SL |
SJNF 19B-8SL |
SJNF 24B-8SL |
SJNF 33B-8SL |
SJNF 41B-8SL |
|
Forging station |
No. |
8 |
8 |
8 |
8 |
8 |
8 |
|
Cut-off dia.(Max) |
mm |
11 |
14 |
19 |
24 |
30 |
40 |
|
Cut-off length(Max) |
mm |
36 |
40 |
48 |
60 |
75 |
85 |
|
Kick out length(Max) |
mm |
40 |
60 |
60 |
80 |
100 |
120 |
|
P.K.O length(Max) |
mm |
16 |
18 |
20 |
25 |
30 |
35 |
|
Dies pitch |
mm |
50 |
60 |
80 |
100 |
140 |
165 |
|
Forging power |
kgs |
60000 |
120000 |
185000 |
300000 |
400000 |
550000 |
|
Ram stroke |
mm |
160 |
200 |
220 |
280 |
280 |
360 |
|
Output for nut |
pcs/min |
55-140 |
60-110 |
50-90 |
45-80 |
40-70 |
40-60 |
|
Main motor |
kw |
15 |
22 |
45 |
55 |
160 |
220 |
|
Lubrication motor |
kw |
1.5 |
2.2 |
2.2 |
2.2 |
2.2 |
2.2 |
|
Lubricant |
l |
1000 |
1400 |
1800 |
3200 |
3800 |
5500 |
|
Lifting reference weight |
Ton |
7 |
12 |
23 |
40 |
65 |
108 |
|
Machine dimensions |
cm |
290*195*130 |
350*240*150 |
470*295*195 |
570*355*210 |
645*430*230 |
830*525*265 |
Our 8-station long stroke nut former focuses on:
Progressive deformation with reduced stress concentration
Extended forming travel for deeper or thicker nut profiles
Improved control over intermediate geometry transitions
Greater tolerance for complex nut designs
By segmenting forming work into more steps, the machine helps maintain shape consistency and dimensional stability throughout the forming cycle.
Nuts with complex external contours
Thick or tall nuts with deep internal profiles
Structural or load-bearing nut designs
Engineered fasteners requiring high forming accuracy
Cold heading relies on controlled material flow rather than material removal. In advanced nut forming, the challenge is not speed, but stability. The 8-station long stroke nut former provides additional forming margin, allowing each stage to operate within a controlled deformation range.TAICHUANG assists customers in evaluating this nut former based on drawing complexity, material behavior, and long-term production stability considerations.
Q1: When is an 8-station nut former necessary?
It is considered when nut geometry is complex or when standard station counts no longer provide sufficient forming control.
Q2: What is the benefit of combining long stroke with more stations?
It allows deeper and more gradual deformation, reducing forming stress and improving consistency.
Q3: Is this still a cold heading machine?
Yes, it forms nuts through cold deformation without cutting.
Contact us freely for any inquiries on our products by following:
Email: sales03@gdtaichuang.cn
Telephone: +86-757-85755398
Fax: +86-757-85765865
Mob: +86-18576574047
24 hours on line contact:
whatsApp: 8618576574047
Address
Building 1, Ruixin Technology Park, No. 206 of Xingye North Road, Shishan Town, Nanhai District, Foshan, Guangdong, China. 528225
Tel
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.
Precision-Engineered Customization/Patent-Protected Innovation
Cost Savings: 30% average reduction vs. trading companies
Quality Control: Live video factory audits during production
Global Compliance Guarantee: Pre-verified for FDA/ISO/ROHS standards.
