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Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder

Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder

Air expansion shaft used in printing, packaging, textile, film industries. Inflates to grip core, deflates for easy removal. Fast loading, stable winding. Key selling points and pain points below.

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Product Description
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder supplier

We are the factory in DongGuan professionally produce transmission parts for machines simple listed here for your reference :

1. magnetic powder clutch and brake series
2. tension controller series : manual tension controller,automatic tension controller.
3. air shaft and air adaptor series
4. safety chuck series
5. Edge positioning system series
6. air brakeand clutch series
7. electromagnetic clutch and brake series
8. worm reducer and motor series
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder supplier
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder supplier
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder manufacture
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder manufacture
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder manufacture
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder details
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder details
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder 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.
The air expansion shaft is a mechanical component widely used in industries such as printing, packaging, textiles, and film processing. It is primarily designed for the rapid loading/unloading and stable winding/unwinding of rolled materials (e.g.,paper, film, fabric). Its core principle involves inflating to expand and grip the inner wall of the roll, then deflating to contract for easy removal. Below is an analysis of the key selling points and common pain points of air expansion shafts:
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I. Key Selling Points (Core Advantages)
1. Efficient and Convenient Loading/Unloading
* Rapidly clamps the roll’s inner wall upon inflation, eliminating complex tools and significantly reducing roll-change time, thereby boosting production efficiency.
* Deflates to shrink, enabling effortless roll removal and avoiding the tedious manual adjustments required by traditional mechanical shafts.
2. High Load Capacity and Stability
* Utilizes high-strength materials and evenly distributed airbag designs to withstand high torque and heavy loads, ensuring stability during high-speed operation and minimizing risks of roll misalignment or slippage.
3. Broad Compatibility
* Adaptable to rolls of varying inner diameters (e.g., 3-inch, 6-inch) by replacing key strips or adjusting air pressure,meeting diverse production needs.
* Compatible with multiple core materials (e.g., paper tubes, plastic tubes, metal cores), offering strong universality.
4. Low Maintenance Costs
* Simple structure with no complex mechanical parts, resulting in low failure rates and reduced long-term maintenance costs.
* High-quality sealing components extend lifespan and minimize air leakage risks.
5. Enhanced Safety
* Eliminates manual screw tightening, reducing operational hazards, especially in high-speed automated production lines.
6. Brand and Customization Services
* Leading brands (e.g., Montalvo, RE) provide high-precision products and tailored solutions (e.g., explosion-proof designs,
high-temperature-resistant materials) for specialized industries.
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II. Common Pain Points (User Challenges)
1. High Dependency on Stable Air Supply
* Requires consistent air pressure (typically 0.4–0.6 MPa). Unstable or insufficient pressure reduces clamping force, jeopardizing production safety.
2. Seal Aging and Air Leakage
* Rubber components (e.g., airbags, seals) degrade over time, leading to leaks and increased maintenance costs from frequent replacements.
3. High Initial Procurement Costs
* Premium air expansion shafts (especially imported brands) are expensive, pushing budget-constrained SMEs toward cheaper,less durable alternatives.
4. Compatibility Issues
* Customization is required for non-standard or special-sized rolls, extending lead times and costs. Variations betweenbrands may cause incompatibility.
5. High Technical Repair Demands
* Internal airbag or pneumatic system failures require specialized repairs. Lack of technical support or delayed spare parts delivery can lead to costly downtime.
6. Environmental Limitations
* Seals degrade faster in high-temperature, humid, or corrosive environments, necessitating additional protective measures (e.g., stainless steel construction, special coatings).
7. Misoperation Risks
* Improper inflation/deflation (e.g., over-pressurization) may cause airbag rupture or shaft deformation.
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder details
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder supplier
What can an air shaft be used for?
Cutting machine;
Printing machine;
Slitting machine;
Coating machine;
Laminating machine;
Bag making machine;
so on...

3. 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
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
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory
Lightweight aluminium air shafts
* Winding and unwinding of material coils like paper or film
* Clamping bars made of aluminium, rubber-steel, solid rubber or Plastic
* Body made of light aluminium profile
* the shafts are designed for frequent roll changes
* the bearing journals designed on customers requst 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 aluminium air shafts is the right choice for most standard applications. It is designed for medium web tension and medium coil weight. Due to the aluminium 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.
Spare Parts
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder manufacture
01
body
09
clamping piece – top part
02
journal
10
threaded pin DIN 914 – M8 x 20
03
journal valveside
11
threaded pin DIN 913 – M6 x 8
04
clamping bar
12
locking screw M10x1
05
retaining spring
13
o-ring
06
air distributor
14
flat tube
07
clamping piece – bottom part
15
protection tape
08
clamping piece – bottom part valveside
16
valve
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder manufacture
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder manufacture
Standard air shafts
* 3″ (76mm) & 6″ (150mm) aluminium profile
* 300mm – 3,000mm length
* Hardened standard journals
* selectable clamping bars
* max. 1000kg (3″) 1,500kg (6″) with stable load
In order to meet the demands of our customers for better delivery times, we have common standard journals available from stock which allows us to reduce the delivery time considerably.
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory
High performance air shafts
* Winding and unwinding of material coils like paper or film
* Expansion elements made of aluminium, rubber-steel and solid rubber
* Winding and unwinding of material coils like paper or film
* the air shafts is designed for high loads
* bearing journals are fully customisable
* diameter: 50/70/76.2/100/120 / 150-152.4/200 – 203.2 mm
* with easily exchangeable, central tube
Due to its construction and the central tube system, this winding shaft is the most customisable. Depending on its design, it can withstand very high loads and is therefore a real high-performance air shaft. Even a carbon fibre body is possible in case a very low dead weight is required. The shafts expansion elements are expanding by a central rubber hose.
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder supplier
01
body
08
clamping ring
02
rubber tube
09
nut
03
support tube
10
o-ring
04
expansion element
11
clamping piston
05
valve
12
flat head screw DIN 7991 – M10 x 16
06
journal
13
flat head screw DIN 7991 – M10 x 12
07
journal / air inlet
14
clamping piston / air passage
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory
Pneumo-mechanical precision air shafts
* Winding and unwinding of material coils like paper or film
* Winding and unwinding of material coils like paper or film
* Body made of aluminium, steel or carbon fibre
* dynamically balanced on request
* ideal for very high speeds
* Diameter: 70 / 70 – 76.2 / 76 / 100 / 120 / 127 / 150 – 152.4, 200 – 203.2 mm
The expansion of the PMS series is characterised by the variably adjustable clamping sets, with which sleeve tolerances can be perfectly compensated. In addition, there is the possibility of dynamic balancing.
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder details
pneumatic air shafts with shells
* Winding and unwinding of material coils like paper or film
* Sleeve-protecting due to maximum contact surface
* Core less winding possible
* Shafts are pneumatically expanding
* Shells without screw connection
* Diameter: 76.2 /152,4
* Shaft body made of aluminium or steel
Flexible Inflating Air Shaft 3 6 Inch Pneumatic Bearing Core for Slitting Rewinder factory
Air Shaft Applications Examples

flexible inflating air shaft 3 6 inch pneumatic bearing core for slitting rewinder-0

flexible inflating air shaft 3 6 inch pneumatic bearing core for slitting rewinder-1

Company Profile

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:
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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