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3 Inch Lug carbon fiber Air Expanding Shaft

Release time:2026-01-20 10:34viewed:times

First--a wide range of applications: Air expanding shaft as an independent design of parts, from 1 inch to 15 inches, the length are determined by the actual needs of the customer, where there are process equipment such as slit printing and rewinding, coating or the center winding machine, applicable to the inflation shaft.

Expanding Method:

Air Expanding Type

Expanding Element Material:

Aluminum/Rubber/Steel Lug

Diameter of the non-inflated shaft outer tube

φ74mm-74.5mm(Can be customized as per customers’ demands or drawings)

Inner Diameter of Applicable Tube

φ75-φ78mm(Customers need to inform their CORE ID exactly)

Length:

Customized based on demand,shanhgai handong machinery manufacture the 4 meters length airshaft experience 

Shaft Body material:

Steel/Aluminum alloy/carbon fiber/40Cr

Shaft Surface treatmentThe steel shaft tubes are coated with hard chrome, while the aluminum shaft tubes undergo brownish hard oxide treatment.
Maxim load capacity3 inch steel body max load 1.5T,3 inch Aluminum alloy body max load 500kg;3 inch carbon fiber body max load 500kg

Shaft Journal Material:

Steel/40Cr

Shaft Colour:

Silver or Brown

3 inch Shaft net weight generally , for Steel body 20kg/meter  ; For Aluminum alloy body 10kg/meter ; For carbon fiber body 10kg/meter
Warranty1 year

 

Function of Inflatable Shaft:
First a wide range of applications: Air expanding shaft as an independent design of parts, from 2 inch to 15 inches, the length are determined by the actual needs of the customer, where there are process equipment such as slit printing and rewinding, or the center winding machine,coating machine ,Rubber equipment casting machine, applicable to the inflation shaft.


Second, cost-effective: The inflation shaft is designed for the needs of the actual machine, and can be applied to various types of coils such as thick, thin, wide and narrow.


Third, long service span time with simple maintenance. The inflatable shaft is a mechanical accessory, each part of its structure has a fixed specification. We can offer you all the durable parts such as bladder, punch blocks, bearings, gaskets, air nozzles with quality assured quality and low price , making it easy to maintain. 


Our company has strict quality requirements for the various components of the air shaft,  the product quality can be guaranteed with 24 hours online to serve.


Use of Air Shafts:

The use of the 3 inch air expanding shaft is very wide. All the things with  winding, unwinding and slitting function need the pneumatic shaft, even the light metal industry. Such as: the inflation shaft is mainly suitable for printing equipment: drying machine, flexo printing machine, gravure machine, trademark printing machine, etc.; Other machinery: coating machine, leather machine, setting machine, embossing machine, slitting Machine, die cutting machine, rewinding machine, paper tube machine, bag making machine, laminating machine, laminating machine, film blowing machine, foaming machine, laminating machine, embossing machine, paper machine, non-woven machine, The use of cloth inspection machines, bronzing machines, battery equipment and other related mechanical equipment.


Technique parameters

Model

Paper Tube Inner Diameter

Shaft Diameter Before Expanding

Shaft Diameter After Expanding

2" Shaft

Φ50~Φ51mm

Φ49mm

Φ51~Φ53mm

3" Shaft

Φ75.5~Φ78mm

Φ74mm

Φ76~Φ80mm

4" Shaft

Φ101~102mm

Φ99mm

Φ101~105mm

6" Shaft

Φ151~Φ153mm

Φ150mm

Φ152~Φ156mm

8" Shaft

Φ202~Φ204mm

Φ200mm

Φ202~Φ206mm

10" Shaft

Φ252~Φ256mm

Φ250mm

Φ252~Φ256mm

12" Shaft

Φ302~Φ305mm

Φ300mm

Φ302~Φ306mm

Order Details

Item Name

3inch Lug Type Air Expanding Shaft

MOQ(Minimum Order Quantity)

1Pc

Lead time

20 days after receiving the deposit

Calculated Weight

14kg/Meter(Steel Body),9kg/Meter(Aluminum Body)

Package

Carton/plywood Box

Price Term

EXW,FOB, CIF, etc

Payment term

TT,L/C

Country of Origin

China

The ordering guide:

Users need to specify when customizing the  inflatable shaft type : appearance size, valve position and type such as the pointed air nozzle or the flat air nozzle, along with the specified external diameter of the thread and the pitch of the teeth. or the default type is a pointed air nozzle. Mark important shaft head size tolerance.If the axial inlet, gas mouth shaft head when installation need more than 35 mm diameter.All inflatable axis are required to issue a formal drawings, the two sides confirmed rear can production.

Note:all the data are the theoretical data, for reference only.

All rights of interpretation belong to Shanghai Han Dong Machinery Technology Co., Ltd.


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