Process flow of making hex bolt

1. Cold heading machine
Main technical parameters:
| Model | Max. Screw Dia. (mm) | Max. Screw length (mm) | Capacity (pcs/min) | Motor (kw) | Weight(Ton) | Overall size (m) |
| ZM3-18A/B | 3 | 18 | 160-180 | 0.75/0.37 | 0.6 | 1.3*0.75*0.9 |
| ZM3-28A/B | 3 | 28 | 160-180 | 0.75/0.37 | 0.6 | 1.3*0.75*0.9 |
| ZM4-28B | 4 | 28 | 120-160 | 1.5/0.37 | 0.97 | 1.5*0.9*0.9 |
| ZM4-28D | 4.5 | 28 | 180-200 | 1.5/0.37 | 1.2 | 1.6*1*1.2 |
| ZM4-40B | 4 | 40 | 120-150 | 1.5/0.37 | 0.97 | 1.6*1*1.2 |
| ZM4-40D | 4.5 | 40 | 180-200 | 1.5/0.37 | 1.2 | 1.6*1.1*1.1 |
| ZM5-40B | 6 | 40 | 120-150 | 2.2/0.37 | 1.8 | 1.8*1.1*1.1 |
| ZM5-60B | 6 | 60 | 110-140 | 2.2/0.37 | 1.8 | 1.8*1.1*1.1 |
| ZM5-80B | 6 | 80 | 80-100 | 2.2/0.37 | 1.9 | 2*1.1*1.2 |
| ZM5-100B | 6 | 100 | 60-80 | 3/0.18 | 2.1 | 2.4*1.2*1.2 |
| ZM5-120B | 6 | 120 | 50-70 | 3.6/0.37 | 2.3 | 2.8*1.3*1.3 |
| ZM6-60B | 8 | 60 | 80-110 | 4/0.37 | 2.8 | 2.3*1.3*1.3 |
| ZM6-100B | 8 | 100 | 60-90 | 4/0.37 | 2.7 | 2.3*1.3*1.3 |
| ZM6-120B | 8 | 120 | 60-70 | 4/0.37 | 3 | 2.4*1.3*1.4 |
| ZM6-170B | 8 | 170 | 40-70 | 4/0.37 | 3.7 | 3*1.3*1.5 |
| ZM6-200B | 8 | 200 | 40-55 | 4/0.37 | 3.7 | 3*1.3*1.5 |
| ZM8-120B | 10 | 120 | 50-90 | 5.5/0.37 | 4.6 | 3.4*1.5*1.5 |
| ZM8-130B | 10 | 130 | 50-90 | 5.5/0.37 | 4.6 | 3.4*1.51.5 |
| ZM8-130C | 10 | 130 | 50-90 | 5.5/0.37 | 4.6 | 3.4*1.51.5 |
| ZM8-150C | 10 | 150 | 40-50 | 5.5/0.37 | 5 | 3.5*1.7*1.7 |
| ZM8-200B | 10 | 200 | 25-60 | 7.5/0.37 | 6 | 3.8*1.6*1.7 |
| ZM10-120B | 12 | 120 | 40-70 | 11/0.75 | 7 | 3.3*1.71.7 |
| ZM10-170C | 12 | 170 | 40-60 | 11/0.75 | 7.5 | 4.2*1.81.7 |
| ZM10-220C | 12 | 220 | 35-60 | 11/0.75 | 7.5 | 4.2*1.81.7 |
| ZM10-250C | 12 | 250 | 30-45 | 11/0.75 | 8.5 | 5*1.8*1.7 |
| ZM10-300C | 12 | 300 | 25-35 | 15/0.75 | 9 | 5*1.9*2.1 |
| ZM10-360C | 12 | 360 | 20-30 | 15/0.75 | 12 | 6.7*2*2.6 |
| ZM12-150C | 14 | 150 | 40-50 | 15/0.75 | 10 | 3.9*1.9*1.8 |
| ZM12-250C | 14 | 250 | 35-50 | 15/0.75 | 11 | 5.3*2.2*1.9 |
| ZM14-150C | 16 | 150 | 40-50 | 11/0.75 | 10 | 4.5*2.2*2.15 |
| ZM14-250C | 16 | 250 | 35-45 | 15/0.75 | 11 | 5*2.2*2.15 |


2. Bolt trimming machine
| Model | Opposite size of cutting(mm) | Material length (mm) | Capacity (pcs/min) | Motor (kw) |
| MZ23-8 | 10-14 | 10-100 | 60 | 3kw |
| MZ23-10A | 14-17 | 20-140 | 60 | 4kw |
| MZ23-10B | 14-17 | 20-250 | 27-30 | 5.5kw |
| MZ23-12A | 14-19 | 25-100 | 55 | 5.5kw |
| MZ23-12B | 14-19 | 25-150 | 55 | 5.5kw |
| MZ23-16A | 17-24 | 30-100 | 45 | 7.5kw |
| MZ23-16B | 17-24 | 30-150 | 45 | 7.5kw |
| MZ23-16C | 17-24 | 30-250 | 45 | 7.5kw |
| MZ23-20 | 17-30 | 40-250 | 40 | 11kw |
| MZ23-20 | 17-30 | 40-300 | 40 | 11kw |
| MZ23-24 | 17-36 | 40-300 | 40 | 15kw |
| MZ23-30 | 19-46 | 100-300 | 40 | 18.5kw |

3. Full automatic thread rolling machine
| Model | Max. Screw Dia (mm) | Max. Screw length (mm) | Motor (kw) | Capacity (pcs/min) | Weight (Ton) | Overall size (m) |
| HR3-20A | M2.6 | 20 | 1.1 | 350 | 0.3 | 1.1*0.53*1.2 |
| HR3-20B | M2.6 | 20 | 1.1 | 350 | 0.3 | 1.1*0.53*1.2 |
| HR4-25A | M4 | 25 | 1.5 | 320 | 0.45 | 1.3*0.63*1.32 |
| HR4-25B | M4 | 25 | 1.5 | 320 | 0.45 | 1.3*0.63*1.32 |
| HR4-40A | M4 | 40 | 2.2/0.37 | 280 | 0.97 | 1.5*1.15*1.35 |
| HR4-40B | M4 | 40 | 2.2/0.37 | 280 | 0.97 | 1.5*1.15*1.35 |
| HR5-55B | M5 | 55 | 3+0.37 | 160 | 1.2 | 1.6*1.35*1.7 |
| HR5-65A | M5 | 65 | 3+0.37 | 130 | 1.3 | 1.75*1.4*1.65 |
| HR5-65B | M5 | 65 | 3+0.37 | 130 | 1.3 | 1.75*1.4*1.65 |
| HR6-60A | M6 | 60 | 4/0.37 | 180 | 1.5 | 1.7*1.65*1.3 |
| HR6-60B | M6 | 60 | 4/0.37 | 180 | 1.5 | 1.7*1.65*1.3 |
| HR6-100B | M6 | 100 | 5.5+0.37 | 110 | 1.9 | 2.7*1.3*1.3 |
| HR8-80B | M8 | 80 | 5.5/0.37 | 110 | 1.8 | 2.1*1.55*1.3 |
| HR8-100B | M8 | 100 | 7.5+0.37 | 100 | 2.1 | 2.7*1.7*1.3 |
| HR8-120B | M8 | 120 | 5.5 | 100 | 2.1 | 2.4*1.8*1.4 |
| HR10-120B | M10 | 120 | 7.5 | 80 | 1.8 | 2.35*1.95*1.4 |
| HR12-120B | M12 | 120 | 11 | 60 | 3 | 2.45*2*1.45 |
| HR12-160B | M12 | 160 | 13 | 60 | 3 | 2.45*2*1.45 |
| HR12-220B | M12 | 220 | 15 | 50 | 3.5 | 2.5*2*1.45 |
| HR16-120B | M16 | 120 | 15 | 50 | 3.8 | 2.5*2.1*1.45 |
| HR16-160B | M16 | 160 | 15 | 50 | 4 | 2.5*2.1*1.45 |
| HR16-220B | M16 | 220 | 15 | 45 | 4.8 | 3.7*1.9*1.7 |


Machines for making nuts
1. HR series cold upsetting forming machine
| Model | HR11B6S | HR14B6S | HR17B6S | HR19B6S | HR24B6S | |
| Dies | 6 | 6 | 6 | 6 | 6 | |
| Forging Power | Ton | 60 | 95 | 120 | 150 | 250 |
| Cut-off Dia.(max) | mm | 11 | 16 | 18 | 20 | 24 |
| Cut-off Length | mm | 7 | 11 | 13 | 20 | 30 |
| Making Size | DIN | M6 | M8 | M10 | M12 | M16 |
| Output | Pcs/Min | 260 | 180 | 160 | 130 | 110 |
| Slide Ram | mm | 50 | 70 | 80 | 100 | 110 |
| Kick-out Length(max) | mm | 11 | 18 | 20 | 30 | 35 |
| Dies Pitch | mm | 50 | 60 | 70 | 80 | 100 |
| Main Motor | Kw | 11 | 15 | 22 | 37 | 45Kw |
| Lubricant Motor | Kw | 1.5 | 1.5 | 3 | 3 | 3 |
| Lubricant oil | Litre | 540 | 720 | 900 | 1080 | 1440 |
| Weight | Ton | 4 | 8 | 10 | 15 | 25 |
| Dimension | M | 2.15*1.55*1.06 | 2.8*2.05*1.3 | 3.67*2.05*1.4 | 4.0*2.45*1.45 | 5.0*3.0*1.7 |

2.Nut tapping machine
| Model | HR-M8B-D4G | HR-M12B-D4G | HR-M14B-D4G | HR-M16B-D4G | HR-M18B-D4G |
| Tapping range | M6-8 | M10-12 | M14 | M16 | M18 |
| Capacity (pcs/min) | 180-240 | 112-148 | 76-84 | 68-76 | 48-56 |
| No. of Spindle | 4 | 4 | 4 | 4 | 4 |
| Total Motor power (kw) | 4.7 | 6.3 | 6.3 | 10.2 | 10.2 |
| Weight (kg) | 1T | 1.2T | 1.2T | 1.8T | 1.8T |
| Dimension (m) | 1.2*1.2*1.6 | 1.6*1.6*1.6 | 1.6*1.6*1.6 | 1.6*1.6*1.6 | 1.8*1.8*1.9 |
Finished bolts and nutsWe can also customize machine according to your needs. Please send pictures of your bolts and nuts,
and tell the sizes you want to make, then we can recommend most suitable machine accordingly.
Shipment pictures

Our customers








Audited Supplier










