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The CTR6N Large Thread Rolling Machine is a specialized piece of equipment designed for the efficient production of external threads through cold rolling. This machine is part of the CTR (Cold Thread Rolling) series, known for its precision, reliability, and ability to handle high-volume manufacturing needs.
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| Mode | Unit | K.505 | K-506 | KD-506 | KD-508 | KD-510 | KD-513 | KD-516 | KD-520 | KD525 |
| Forging station | No. | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| Forging force | Kgf | 46000 | 55000 | 55000 | 80500 | 125000 | 172000 | 295000 | 435000 | 650000 |
| Max.cut-off dia | mm | 06 | 08 | 08 | 010 | 012 | 016 | 023 | 025 | 032 |
| Max.cut-of length | mm | 80 | 95 | 100 | 140 | 165 | 220 | 240 | 260 | 280 |
| Production speed | pcs/min | 240 | 200 | 220 | 200 | 200 | 120 | 95 | 80 | 65 |
| Master die ejection Blow | mm | 70 | 70 | 90 | 130 | 145 | 200 | 220 | 240 | 255 |
| Punch die ejection Blow | mm | 30 | 30 | 30 | 40 | 40 | 60 | 60 | 65 | 70 |
| Main sliding table Blow | mm | 120 | 120 | 130 | 160 | 195 | 270 | 285 | 355 | 370 |
| Overall dims.Of mian die | mm | 050*90 | 050*100 | 050*100 | 060*130 | 075*130 | 080*190 | 0108*200 | 0125*240 | 0140*250 |
| Overall dims.Of punch die | mm | 038*85 | 038*85 | 040*100 | 045*115 | 053*125 | 070*130 | 075*185 | 090*215 | 0120*270 |
| Overall dims..Of cut of die | mm | 028*35 | 028*35 | 028*45 | 040*60 | 045*60 | 070*69 | 075*100 | 075*120 | 080*130 |
| Die pitch | mm | 55 | 55 | 60 | 80 | 94 | 110 | 129 | 140 | 160 |
| Applicable bolt dia | mm | 2-5 | 3-6 | 3-6 | 3-6 | 6-10 | 8-16 | 10-22 | 12-30 | 12-31 |
| Shank lenght of blank | mm | 10-65 | 10-85 | 10-85 | 10-115 | 10-115 | 20-180 | 20-200 | 20-220 | 20-221 |
| Main engine motor | KW | 18.5 | 22 | 22 | 30 | 37 | 55 | 75 | 90 | 115 |
| Machine weight | mm | 7700 | 9900 | 9900 | 19500 | 25300 | 46000 | 66500 | 97200 | 164000 |