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DH04 Wipers

DH04 Wipers, technical data​

Profile Material Temperature Pressure Speed Check stock
DH04 Polyurethane -35 to +90 ºC 50 MPa 0,5 m/s

What about DH04 wipers?

Simple-acting DH04 wipers are produced in a polyurethane particularly well adapted to hydraulic oils. Its multiple heights profile enables a perfect fitting in to the system and avoids twisting in the housing.

Additionally, DH04 wipers prevent dust and impurities to enter from the back of the seal being a relevant advantage compared to other wipers.

Mechanical properties

  1. Material: L-93
  2. Specific gravity (ASTM D792): 1.19
  3. Hardness s (ASTM D2240): 90±2
  4. Tensile strength (ASTM D412): 397
  5. 100% modulus (ASTM D412): 97
  6. 300% modulus (ASTM D412): 175
  7. Compression Set 22h/70 °C (ASTM D395): 14
  8. Compression Set 22h/100 °C (ASTM D395): 27

Working conditions

  1. Speed: 0.03-0.5 m/sec
  2. Temperature: -20 to +100 °C

Resistance to hydraulic oil

 

  1. Oil: Hydraulic Oil
  2. Material: L-93
  3. Temperature (ºC): 100/120
  4. Time (Hours): 100/100
  5. Hardness variation (Shore A): 0/-1
  6. Tensile strength variation n (%): -12/-21
  7. Volume variation (%): +0.04/+0.68

Fitting recommendations

Rascador DH04

R ≦ 0.3 Rod Ø d Surface Roughness: 0.8~1.6 μ mRmax (0.2~0.4 μ mRa)

Wiper Ø d Ø D t h H
DH-04 12 18 2.5 5 2.5
DH-04 14 20 2.5 5 2.5
DH-04 16 24 3.8 7 4
DH-04 18 26 3.8 7 4
DH-04 18 26 4 7 4
DH-04 20 28 4 7 4
DH-04 22 30 4 7 4
DH-04 25 33 4 7 4
DH-04 28 36 4 7 4
DH-04 30 38 4 7 4
DH-04 32 40 4 7 4
DH-04 35 43 4 7 4
DH-04 36 44 4 7 4
DH-04 38 46 4 7 4
DH-04 40 48 4 7 4
Wiper Ø d Ø D t h H
DH-04 42 50 4 7 4
DH-04 45 53 4 7 4
DH-04 50 58 4 7 4
DH-04 55 63 4 7 4
DH-04 60 68 4 7 4
DH-04 65 73 4 7 4
DH-04 70 78 4 7 4
DH-04 75 83 4 7 4
DH-04 80 88 4 7 4
DH-04 85 93 4 7 4
DH-04 90 98 4 7 4
DH-04 100 108 4 7 4
DH-04 105 113 4 7 4
DH-04 160 172 5.5 10 5.5
DH-04 230 245 6.5 13 6.5