In accordance with GB4004-83, JB/T7600.3-94 and DlN46395 standards, the product is made of common carbon steel Q235 thick plate through assembly and welding, and machine finishing. The product has high rigidity of bobbin and high precision. Through dynamic test, the product has stable operation at high speed, and can be used for high-speed drawing-wire machine and wire stranding machine.
| Serial Number | Specification Model | Lateral Plate Diameter D1 | Major Diameter D2 | Axle Hole Diameter D4 | Carrying Hole Diameter D5 | Center Distance E of Axle Hole and Carrying Hole | External Width L1 | Internal Width L2 | Remarks |
| 1 | 285 | 285 | 130 165 | 127 | 18 | 180 | 260 | 240 | Thin Extend Shaft |
| 2 | 300 | 300 | 130 165 | 127 | 18 | 180 | 270 | 250 | Thin Extend Shaft |
| 3 | 335 | 335 | 165 217 | 127 | 18 | 180 | 270 | 250 | Thin Extend Shaft |
| 4 | 400 | 400 | 217 270 | 125 127 | 18 | 100 | 270 | 250 | Middle Extend Shaft |
| 5 | 500 | 500 | 217 270 | 125 127 | 22 | 130 | 320 | 300 | Middle Extend Shaft |
| 6 | 630 | 630 | 350 420 | 125 127 | 28 | 200 | 430 | 400 | Twist Extend Shaft |
| 7 | 300 | 300 | 130 165 | 56 | 8 | 100 | 290 | 270 | Twist Extend Shaft |
| 8 | 335 | 335 | 130 165 | 56 | 8 | 100 | 290 | 270 | Twist Extend Shaft |
| 9 | 400 | 400 | 165 217 | 70 | 16 | 170 | 270 | 250 | Extend Shaft |
| 10 | 500 | 500 | 217 270 | 80 | 16 | 100 | 320 | 300 | Extend Shaft |
| 11 | 560 | 560 | 270 295 | 80 | 18 | 120 | 355 | 329 | Extend Shaft |
| 12 | 610 | 610 | 270 320 | 80 | 22 | 170 | 360 | 336 | Extend Shaft |
| 13 | 630 | 630 | 355 450 | 125 127 | 28 | 200 | 360 | 336 | Extend Shaft |
| 14 | 710 | 710 | 400 500 | 125 127 | 28 | 100 | 530 | 450 | Extend Shaft |
| 15 | 800 | 800 | 450 560 | 125 127 | 28 | 100 | 600 | 500 | Extend Shaft |