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The application of the air expansion shaft
It is suitable for the winding and unwinding of reels in related machinery such as coating, slitting, printing, lamination, papermaking, bag-making and plastic processing, and can effectively improve work efficiency.
Structural features of the convex key type air expansion shaft
The main body of the shaft is made of high-quality steel pipe and is plated with hard chromium on the surface. Aluminum convex key, flexible in extension and contraction; It is equipped with a high-quality rubber inner tank and a quick exhaust nozzle, providing excellent sealing performance and a long service life. The shaft head of the air expansion shaft can be disassembled separately, making maintenance simple.
External dimensions of the convex key type air expansion shaft:
Technical parameters of convex key type air expansion shaft
Serial Number | Item | 1″ Shaft | 1.5″ Shaft | 2″ Shaft | 3″ Shaft | 4″ Shaft | 6″ Shaft | 8″ Shaft | 10″ Shaft | 12″ Shaft |
1 | Applicable paper tube inner diameter | ф25.4 | ф38.1 | ф50.8 | ф76.2 | ф101.6 | ф152.4 | ф203.2 | ф254 | ф304.8 |
2 | Inflatable shaft diameter before inflation | ф24.8 | ф37 | ф49 | ф74 | ф100 | ф150 | ф200 | ф250 | ф300 |
3 | Inflatable shaft diameter after inflation | ф28 | ф41 | ф53 | ф82 | ф108 | ф158 | ф210 | ф260 | ф310 |
Ordering Guide
When customizing an air expansion shaft, users need to specify the type, external dimensions, and position of the air nozzle of the air expansion shaft, and mark the tolerances of important dimensions on the shaft head. If the air intake is axial, the outer diameter of the shaft head when installing the air nozzle needs to be greater than 35mm. All air expansion shafts must be provided with formal drawings. Prodction can only commence after confirmation by both parties.
