• 2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack
  • 2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack
  • 2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack
  • 2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack
2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack

2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack

Product Details:

Place of Origin: Guangzhou China
Brand Name: AIRSUSTECH
Certification: ISO/TS16949:2009
Model Number: 2B12×2

Payment & Shipping Terms:

Minimum Order Quantity: 3Pieces
Packaging Details: Strong Carton Box or as Customers Requirement
Delivery Time: 5-8 Working Days
Payment Terms: T/T, Western Union, Paypal or Others
Supply Ability: 1000PCS/Week
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Detail Information

Material: Rubber + Steel Certificate: ISO/TS16949:2009
Warranty: 12 Months Packing: Neutral Box Or As Customers' Request
Type: Industrial Air Spring Position: Front Or Rear
Function: Reduce Shock Pressure Ability: 0.2-0.8 M PA

Product Description

2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack

 

 

Refer No.

 

CONTITECH FD 412-18 S
AIRKRAFT 113301
DUNLOP (FR) SP 256 NB AIRKRAFT 113300
DUNLOP (FR) SP 1541 NB AIRKRAFT 113305
DUNLOP (FR) SP 1025 NB
GART T291/
DUNLOP (FR) SP 2665 NB(12x2)  
FIRESTONE fole 210 095.008  

 

 

Specifications and Detailed Technical Parameters: 2B12×2

 

Rubber Bellow Diameter: 300mm

Height: 186mm

Bumper block: Without

Belt loop/Girdle Hoop: One piece 

 

Min. pressure: 0 bar

Return force to min.height: ≤300N

Overall weight with clamped plates: 4.8kg

 

Vibration isolation - dynamic characteristic values

Design Height H: recommended 240mm, minimum 220mm

Pressure p[bar] 3 4 5 6 7 8 Vol. V[l]
Force(Load) [KN] 10.0 13.3 16.7 20.6 24.1 27.6 12.0
Spring rate [N/cm] 1590 1900 2210 2520 2830 3140
Natural frequency [Hz] 2.0 1.9 1.8 1.8 1.7 1.7

 

Pneumatic application-static characteristic values

Force F[KN]

Pressure p [bar] 3 4 5 6 7 8 Vol. V [l]
Height H[mm] 240 10.0 13.3 16.7 20.6 24.1 27.6 12.3
220 11.3 15.2 18.9 23.1 26.9 30.8 11.6
200 12.5 16.7 20.8 25.3 29.5 33.8 10.8
180 13.6 18.2 22.7 27.5 32.0 36.5 9.9
160 14.6 19.4 24.3 29.5 34.3 39.1 8.9
140 15.4 20.5 25.5 31.1 36.3 41.3 7.8
120 16.3 21.4 26.7 32.7 38.2 43.4 6.7
100 16.8 22.1 27.8 34.1 39.8 45.0 5.5

 

 

The related picture of 2B12×2

2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack 0

2B12×2 Double Convoluted Flange Air Spring Cross DUNLOP (FR) SP 256 NB/1541 NB/1025 NB For Lifting Jack 1

 

 

About Air Spring

Air spring is a sealed container filled with compressed air, using the compressibility of gas to achieve its elastic effect. Commonly known as air bag, air bag cylinder, cylinder and so on. It is a double convoluted air - bag spring. It consists of a rubber air bag with cord and compressed air enclosed in it. The inner layer of the airbag is made of air-tight rubber, while the outer layer is made of oil-resistant rubber. A steel waist ring between the joints prevents radial expansion of the middle part and prevents friction between the two joints. In addition to the two, there are single, three and four convoluted air springs. The more nodes, the better the elasticity.

 

 

The benefits of air spring for jacks are mainly reflected in the following aspects


1. Routine maintenance

In terms of daily maintenance, due to the working process of the mechanical jack is closely connected with the rotation of the screw, mechanical jack need to periodically check the maintenance, albeit in when not in use, if you don't pay attention to the lubrication rust mechanical jack, it is easy to cause the screw rust, produce a lot of rust, stuck screw, even cause irreversible damage. And the air bag jack almost does not need any routine maintenance work, when not in use, just need to put the air bag in a cool and dry environment can be static.


2. Environment

Mechanical jack because of exposed thread, compact structure, the surface has more lubricating oil, in use, if the environment is more dusty sand, it is easy to stick to the screw of the mechanical jack, damage the equipment. And the air bag jack because of its good integrity, smooth and dry surface, can well avoid this problem.


3. Load-bearing capacity

The general bearing capacity of the air bag jack is about 3 tons or so, customized up to 15 tons or so, although not as good as the lifting capacity of the mechanical jack outstanding, but also enough to cope with most of the actual situation.


4. Initial height requirements

If mechanical jacks are used, a larger starting height is required, while airbag jacks do not require such a large starting height

 

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