DZ? 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