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Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling

Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling

Dongguan factory: expandable air shafts, 3-6 inches, steel/aluminum alloy, CE certified. Quick inflation (2-3 sec), high precision, customizable. Over 17 years winding technology experience.

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Product Description
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling factory
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling factory

We are the factory in DongGuan professionally produce transmission parts for machines

Advantage:
Quick Loading/Unloading and Efficiency Improvement Achieve rapid fixation and detachment of roll materials through inflating/deflating operations (only 2-3 seconds), significantly reducing downtime and meeting high-frequency roll change requirements. No complex mechanical operations or tools required, lowering manual labor intensity, especially ideal for automated production lines.
  
High-Precision Positioning and Consistency After inflation, the shaft tightly adheres to the inner hole of the roll material, ensuring concentricity and uniform tension, preventing misalignment or loosening, and improving finished product quality in processes like printing and coating. Key-type expansion shaft design distributes force application points, balances load pressure, and suits heavy-duty scenarios (e.g., fabric, metal rolls).
  
Flexibility and Broad Applicability Customizable dimensions (length from hundreds of millimeters to over 6 meters, shaft diameter 1-12 inches), adapts to various roll materials of different thicknesses, widths, and specifications. Applicable to multiple industries including printing, papermaking, packaging, textile, and plastic processing, covering both light and heavy industrial needs.
  
Durability and Easy Maintenance Utilizes high-quality steel materials and chrome plating for wear and corrosion resistance, ensuring long service life. Modular design with interchangeable components simplifies repairs and reduces costs; routine maintenance involves checking air tightness, cleaning, and lubrication.
  
High Load-Bearing Capacity Steel materials selected based on requirements enable a single shaft to bear over 1 ton, meeting heavy industrial demands.
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling supplier

Air shafts from Tianji

With more than 17 years of experience in all areas of modern winding technology, we are the first point of contact in china for pneumatic and pneumo-mechanical air shafts. We offer expansion shafts for every application, friction shafts or adapters. standard solutions or manufactured on customers request.
China manufacturer pneumatic expanding air shaft
The air shaft (inflatable shaft) introducing foreign advanced production equipment and fabrication technology, using imported airbag, shaft head for the high quality steel products with nigrescence process, attain wattle using excellent aluminum and hard oxide, use convenient and long operate life. When using, match with our company’s professional configuration of the aerate gun filling gas for the nozzle jet, to make the shaft of off-axle appearance uniform expansion, thereby lock nitrogen-treated barrel,
when unloading, press on deflated mouth to deflated, then nitrogen-treated barrel can be unloaded.
Air Shaft Expandable 3-6 Inch Steel Aluminum Alloy CE Certified Hot Selling factory
Lightweight aluminum air shafts
* Winding and unwinding of material coils like paper or film
* Clamping bars made of aluminum, rubber-steel, solid rubber or Plastic
* Body made of light aluminum profile
* the shafts are designed for frequent roll changes
* the bearing journals designed on customers request or as a cost-effective standard solutions
* standard diameters are 70 / 70-76.2 / 76 /100 / 125 / 150 / 200 mm
* the continuous clamping bars are very protective to the cores
 
The lightweight aluminum air shafts is the right choice for most standard applications. It is designed for medium web tension and medium coil weight. Due to the aluminum profile design, the air shaft is extremely light and relieves the machine operator during frequent roll changes. The pneumatic clamping shaft expands by a flat hose system. The continuous clamping bars are very protective to the cores and allow even a winding of multiple cores.
 
Order guide
Users should specify type, dimension, the position of gas nozzle, and the tolerance of the important size of the top of shaft. if the shaft inlet gas,when gas nozzle is mounting,the out diameter of the top of the shaft should be more than 35mm; all formal drawing of overall dimension should be provided. after the confirmation of both sides, we will start production.
Specification

2. Specifications of air shaft

Type:Key type air shaft(steel-made or aluminum made) ,Lath type air shaft,Differential air shaft
Material: No.45 steel/ Aluminum
Length:0.2m-3.8m
2. Specifications of air shaft
Diameter
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. What can an air shaft be used for
Printing machine;
Cutting machine;
Slitting machine;
Bag making machine;
Coating machine;
Laminating machine;
Item
1 inch shaft
1.5 inch shaft
2 inch shaft
3 inch shaft
4 inch shaft
6 inch shaft
8 inch shaft
10 inch shaft
12 inch shaft
Paper tube inner diameter
# 25.4
#38.1
#50.8
#76.2
#101.6
#152.4
#203.2
#254
#304.8
shaft diameter before expanding
#24.8
#37
#49
#74
#100
#150
#200
#250
#300
Shaft diameter
after expanding
#28
#41
#53
#82
#108
#158
#210
#260
#310

4.Why choose our air shaft ?

(1)Adoping high power press machine to realize interference fit
We are using a high power press machine which can produce 80T thrust to realize all the combination of spindle head and steel tube for the air shafts. Light type air shaft is with 0.03mm interference fit.Heavy type air shaft is with 0.06mm interference fit.While many factories knock it in with a big hammer,no quality and accuracy.

(2)Adopting hi-precision cold-drawn steel tube as the shaft body
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.
4.Why choose our air shaft ?

(3) Adopting whole long key bar and pagoda springs for key type air shafts

We use the whole long key bar to form a good protective ring around the air shaft air chamber ,and we adopt the pagoda springs which can bear 300000 compression.The key bar is made of aluminum alloy.
product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-0

(4)Adopting special equipment to connect air chamber and shaft head

The connection mode between the air chamber and the shaft head is very important process,our company are using special equipment to realize it.Outside is buckled by siderosphere directly which can ensure good sealing performance and stability. Many air shafts produced by other suppliers , both ends are fastened by iron wire,this is easy to leak and is with unstable sealing performance.
Air valve and Air pump:
product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-1
Air Shaft Applications Examples
product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-2
Packing & Delivery
To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-3
product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-4
Why Choose Us

Eight reasons to choose us:

1. Perfect service system and after-sale protection.
2. Quality problems will be solved within 24hours.
3. One-to-one customer service tracking processing.
4. Companies carry out the ERP management, improve enterprise fast response.
5. Quality assurance, one year warranty.
6. Supporting professional matched other equipments.
7. The company has more than one product testing units, the implementation of ISO9001: 2015.
8. Unique development and design capabilities to meet the needs of special-purpose equipment manufacturing.

Five Core strengths:
1. The first domestic independent R & D manufacturer and 14 years of professional manufacturing.
2. Casting exquisite, beautiful, practical and durable.
3. Complete specifications, cost-effective and spot supply.
4. Independent research and development, special specifications can be customized.
5. Selected materials, high-tech treatment, up to the international standard test.
Eight reasons to choose us:
Company Profile
DongGuan TaiJi Speed Reducer Clutch Company is a professional industrial transmission parts manufacturer, which headquarter in Taiwan. After many years efforts with all staffs , from general-purpose products to the new products development and now could provide different products to our clients.We always insist on the "Diligence,Honesty,Trust " in order to win constantly support from our customers and also establish "TianJi" Brand to the public with a good image.
Now our company has set up branch in DongGuan in 2005 mainly produce professional reducer , motor,industrial brake ,clutch and other transmission parts with extensive professional experience from TaiWan , combined with imports of machinery processing equipments.Our stringent quality requirements and constant innovation has become the industry leader and can produce products accordance with customer requirements.
Customers and services: we rely on the recognition of customers,we are able to mobilize all our recources to win the trust from customers, we will continue to keep the products with higher performance and quality , faster market reaction speed , greater cost control , to make a success to our customers .We insist on establish organization ,process chart , regulation based on customer need.
product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-5 product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-6 product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-7
FCC certificate for motor
ISO9001:2015 certificate
CE certificate for clutch

product hot sell air expandable shaft 3 to 6 steel and ce certified aluminum alloy air shaft205-8

FAQ

1. When can I get the quotation?

We usually quoted within 24 hours after receiving your inquiry. If you are very urgent to get the price, please call us or tell us in your email, so that we can regard your inquiry priority.

2. How should I place an order?
Please let us know the model number based on our specs for powder clutch, powder brake, air clutch, air brake, electromagnetic clutch, electromagnetic brake and safety chucks, other transmission parts. For air shafts, air adapter please show us your drawing, or let us know your request, and then we will provide you drawing for confirmation.

3. What’s your MOQ basis?
Normally, we don’t have MOQ request, except the customized mini clutches/brakes.

4. What about the lead time for production?
Honestly, it depends on the order quantity and the type of our products. For powder clutch, powder brake, tension controller, which is about 3-5 days. For safety chucks, air shafts which need about 15-30 days.

5. What is the term of shipment?
We can arrange with EXW, FOB, CIF…etc. You can choose the most convenient one or cost-effective way.

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