8"x2 Double Convoluted Air Spring M/31082 Norgren 175mm Stroke Rubber Air Bellows

Product Details:

Place of Origin:	Guangzhou,China
Brand Name:	NORGREM
Certification:	ISO/TS16949:2009
Model Number:	M/31082

Payment & Shipping Terms:

Minimum Order Quantity:	5pcs
Price:	USD199.9-259.9/PC
Packaging Details:	Strong Carton Box or as Customers Requirement
Delivery Time:	3-7 Working Days
Payment Terms:	L/C, T/T, Western Union Or Others
Supply Ability:	1000 PCS/Week

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Detailed Product Description

Model Name:	Rubber Air Spring	Material:	Rubber And Steel
OEM:	Yes	Warranty:	12 Months
Other Name:	Rubber Air Bellows	Dunlop:	8''X2
Model Number:	M/31082	Port Size:	G1/2
Highlight:	8x2 double convoluted air spring , Norgren rubber air bellows , 175mm stroke industrial air spring

8"x2 Double Convoluted Air Spring M/31082 Norgren 175mm Stroke Rubber Air Bellows

Product Description

Item Name	Industrial Air Spring
Model No.	M/31082
Brand	NORGREN
Warranty	12 Months
Type	Convoluted Air Spring
Service Offered	OEM
Suspension System	Air Spring Suspension
Applications	For Industrial Machine
Material	Imported Natural Rubber
Operation	Gas-filled
Package	Standard Packing Or Customized

Norgren Number: M/31082
Norgren Number: M 31082
Norgren Number: M31082

Other compatible models:

GUOMAT: 2B8X2T
FIRESTONE: W01-R58-4055 / W01 R58 4055 / W01R584055
FIRESTONE: 8''X2 / 8X2
DUNLOP: SP1490
CONTITECH: FD 138-18 DS / FD138-18 DS

Technical Data

Medium	Compressed air
Operating Temperature	-30 ... 50 °C, -22 ... 122 °F
Operating Pressure	0 ... 8 bar, 0 ... 116 psi
Port Size	G1/2
Nominal Diameter	8"
Number Of Convolutions	2
Stroke Length	175 mm
Operation	Single acting
Theoretical Force	17650 N
Materials - Body	Nitrile rubber (NBR)
Dimensions - Height	300 mm
Dimensions - Length	230 mm
Dimensions - Width	230 mm
Weight	4.1 kg
Range	M/31000
Series	Air bellows

Key Application Scenarios in Concrete Block Molding Machines

Vibration Mechanism Support and Shock Absorption
The vibration mechanism is the core component of the block molding machine, and its operational stability directly determines the material compaction effect. Installing industrial air springs between the vibrating motor and the frame effectively isolates the high-frequency vibration generated by the motor from being transmitted to the machine body, preventing frame deformation and resonance of other components. Simultaneously, the elastic support of the air springs allows vibration energy to be more concentratedly transferred to the material within the mold, improving compaction efficiency and reducing energy consumption. In large molding machines, multiple sets of air springs are typically arranged symmetrically to ensure uniform force distribution on the vibration mechanism, further enhancing operational stability.
Mold Lifting and Buffering
During the block demolding process, the mold needs to be lifted and lowered rapidly, with smooth buffering at the end of its stroke to prevent impact from causing block breakage or mold deformation. Industrial air springs can serve as auxiliary buffer elements in mold lifting mechanisms, working in conjunction with the hydraulic system: when the mold descends, the air spring is compressed, achieving flexible buffering through pressure changes in the air chamber, reducing the impact of contact between the mold and the material; when the mold rises, the air spring releases pressure, assisting the hydraulic system in improving operating efficiency, while reducing pressure fluctuations and extending the life of hydraulic components.
Machine Body Leveling and Support
During long-term operation, concrete block molding machines are prone to tilting due to factors such as foundation settlement and uneven load, leading to uneven molding pressure distribution and affecting the dimensional accuracy of the blocks. Using industrial air springs as machine body support elements allows for precise correction of the machine body's level by independently adjusting the inflation pressure of each set of air springs. For example, when one side of the machine body sinks, increasing the pressure of the corresponding air spring generates greater support force, adjusting the machine body to a level state, ensuring the parallelism of the mold and the press head during molding, and improving product dimensional consistency.
Vibration Buffering of the Feeding System
When feeding materials into the mold, the screw conveyor or belt conveyor in the feeding system is prone to vibration due to material impact, leading to uneven feeding and affecting the block density. Installing industrial air springs between the conveyor support and the machine body can absorb the impact vibration during the feeding process, ensuring that the material falls evenly into the mold cavity. This also prevents problems such as conveyor deviation and loosening of parts caused by vibration, improving the operational stability of the feeding system.