Unwinding rewinding spindle for packaging

Unwinding rewinding spindle for packaging

 

  

1.Application for air shaft

Printing machine

Cutting machine

Slitting machine

Coating machine

Laminating machine

Bag making machine

And so on

 

2.Specification for air shaft

 

Type	Unaerated diameter (ømm)	Inflated diameter(ømm)	Applicable volume tube inner diameter(ømm)
1″	24.8	24.8-28	25-26
1.5″	37	40-42	38-38.5
2″	49	52-54	50-51
3″	74-75	80-82	75.5-78
4″	99-100	104-106	101-102
5″	125	130-133	126-128
6″	150	154-156	151-153
8″	200	206-264	202-204
10″	250	260-264	252-256
12″	300	308-310	302-305

 

 3.advantages of our air shafts

 

A. High quality material for body tube

We adopt  hi-precision cold-drawn steel tube as the shaft body.The thickness of this kind of tube is uniform so when the rubber balloon inside is inflated ,all key strips will stick out at  same height .And it will  greatly weaken centrifugal force of the whole air shaft when it is rotating and will keep a dynamic balance.This kind of  tube is 460 dollars more expensive per ton than normal steel other suppliers usually used.

 

B. High performance spare parts

The  key strips we used are whole piece of aluminium alloy plate,and they will be good protectors to the rubber balloon. Besides,we adopt pagoda spring which won’t  be broken even compressed or stretched 30000 times.

C. Interference fit

The connection o f shaft head and and body is interference fit.It will ensure the quality  and precision.We use a powerful press machine  which can produce 80t thrust  to realize the connection. And this kind of connection is different  from  other suppliers.They usually hit shaft head into the body with a hammer, which will be easily damaged by heavy load . And the screw  on it is easy to loosen.

D. connection detail of rubber balloon

The rubber  balloon  is tightly coupled with the shaft head,  while other supplier produced air shafts are connected with the wire ,which get rusty easily. 

 

Lath type air shaft:

 

 

Differential shaft:

 

 

Adapter for air shaft:

 

 

  

Hand shank and air tap:

 

Packaging