Specification Brand : NOENNULL BulletPoint1 : The shell is made of high quality material, good cushioning BulletPoint2 : Significantly reduces shock and improves stability. BulletPoint3 : The inner spring can quickly reset the piston rod, which makes the check valve move. BulletPoint4 : It can reduce shock and noise in automated mechanical operations and increase work efficiency. BulletPoint5 : It has a softer shock absorption effect, which has a positive effect on prolonging the service life of the machine. IncludedComponents : No. ItemName : Oil Pressure Damper M20 x 30mm Oil Pressure Damper for AC2030 Pneumatic Cylinder ItemPackageDimensions_Height : 4 centimeters ItemPackageDimensions_Length : 18 centimeters ItemPackageDimensions_Width : 4 centimeters ItemTypeKeyword : shock-absorbers automotive Manufacturer : NOENNULL ModelName : NOENNULLhz8gafdyev ModelNumber : NOENNULLhz8gafdyev PartNumber : NOENNULLhz8gafdyev ProductDescription : Specifications: Material: alloy and stainless steel. Colour: black. Stroke: 30 mm. Maximum energy absorbed: 50 Nm Absorb energy: 48000 Nm /h Effective weight: 40-800 WE(KG) Allowed speed: 1-3.5m/s Working temperature: -10~80℃ Thread: M20. Length: approx. 157mm Weight: approx. 255g