MISC INDUSTRIAL

DESCRIPTION

The MCK53 cushion seal is specially designed for cushioning in pneumatic cylinders. Manufactured from polyurethane, this flexible seal is easy to install by hand. Because the seal functions as a check valve, no separate valve is necessary. 

The seal offers optimum use of cushion travel and high cushioning consistency due to automatic centering, even in the case of misalignment of the cushioning spear to the cylinder head. 

The MCK53 offers increased reliability due to two independent sealing systems; flexible sealing lips and axial sealing areas. 

SEAL INFORMATION

Durometer (Shore A): 92 

Temperature Range (F): -30 TO 176 

Max Pressure (psi): 230 

Extrusion Gap at Various Cross-Sections (in):

• 1/8 nominal CS: MAX = .040 / MIN = .016

Max Speed (ft/sec): 3.0 

Mating Surface Roughness - Ra (µm) - DYNAMIC: 0.1<>0.4 

Mating Surface Roughness - Ra (µm) - STATIC: 63 MAX 

Part Number Definition (Metric): MCK53-(ID) (ADD -N FOR NITRILE) 

Additional Part Number Definition (Metric): 25MM ID = MCK53-025 (OR MCK53-025-N)