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Piston and Rod Seals

DingZing offers 4 types of DZ® piston/rod seals: UN, D-4, D-6, and D-7. These inherently tough seals are suitable for both the piston and rod of a cylinder. Select sizes are also available in inches.

Mechanical Properties
  • • Material: TPU, (D-6): TPU + NBR
  • • Specific Gravity (ASTM D792): 1.19
  • • Hardness (ASTM D2240): 93
  • • Tensile Strength (ASTM D412): 276
  • • 100% Modulus (ASTM D412): 100
  • • 300% Modulus (ASTM D412): 191
  • • Compression Set 70h/70ºC (ASTM D395B): 42
  • • Compression Set 70h/100ºC (ASTM D395B): 56
Oil Resistance
  • • Testing Oil: Hydraulic Oil 46#
  • • Testing Temperature (ºC): 100
  • • Testing Time (Hour): 100
  • • Hardness Variation (Shore A): 0
  • • Tensile Strength Variation (%): -5
  • • Volume Variation (%): +0.12
Working Conditions
  • • Max. Working Pressure: 30 Mpa, (D-6): 35Mpa
  • • Working Speed: 0.03 ~ 0.5 m/sec
  • • Working Temperature: -20ºC ~ 100ºC
 
Type Section Material

Hardness

(Shore A)

Adaptable

Temp ºC

UN TPU 93 -20ºC ~ 100ºC
D-4 TPU 93 -20ºC ~ 100ºC
D-6 TPU + NBR 93 -20ºC ~ 100ºC
D-7 TPU 93 -20ºC ~ 100ºC

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