A.W. Chesterton:
  860 Salem Street - Groveland, MA 01834, USA
  Phone: (978) 469 - 6446  Fax 1: (978) 469 - 6594  Fax 2: (978) 469 - 6789    www.chesterton.com

Name: 21K
Type: Wiper
Product Line: Engineered Polymer Solutions
Chesterton’s 21K Ultra Wiper is a tough, abrasion resistant wiper for HYDRAULIC and PNEUMATIC applications.
  • Self lubricating wiper material reduces friction and heat to extend wiper life.
  • Ideal for high cycle applications.
  • Bump on wiper flange provides outstanding static sealing to keep water and dust out in the most severe environments. Holds wiper in groove.
  • Pointed lip design effectively cleans and dislodges foreign matter from retracting rod/ram to prevent scoring and system contamination.

Other designs/profiles include:

  • W21K, W21KF, W21KT5, , W21KC, W21KC1, W21KCS, W21KH, W21KM, W21KR, W21KS - rod mounted wipers
:

21K Profile (s):

[Wiper with Static Seal]
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Material

Available Materials: 

  • AWC 700-Fluoroelastomer
  • AWC 800 95A-Thermoset Polyurethane
  • AWC 830 FDA-Thermoset Polyurethane
  • AWC 860 95A-Thermoset Polyurethane

Numerous Materials are available for each profile. The MAX VAlUE CHART represents the broadest spectrum available. For additional information please contact your Chesterton Specialist or the EPS Engineering Staff for assistance.