• Maeser Water Penetration Tester

Maeser Water Penetration Tester

The Maeser Penetration Test for Dynamic Water Resistance is the industry standard for determining water resistance of all types of shoe upper leathers, including those used for military applications. The Maeser Tester induces water penetration by repeatedly flexing a partially immersed 4 x 4" sample of leather in an action similar to the flex given the vamp of a shoe in actual wear. Water resistance is measured by the number of flexes required to produce initial water penetration and by the amount of water absorbed in the sample during the test.

  • Conforms to ASTM D2099 and related specifications
  • Fully automatic testing of all types of shoe upper leathers
  • Multiple sample testing capability
  • Meets government requirements for MIL-Spec testing

Easy Operation:

Koehler K55000 Series Maeser Testers feature multiple sample capability and fully automatic operation for maximum productivity. As many as five samples can be tested simultaneously in the Maeser Tester with no operator involvement. After the samples are loaded in the test stations, an electronic control center with digital reset counters operates the stations automatically. The control unit provides a running count of the flexes elapsed during the test and stops the station counters individually as penetration occurs in each sample. When penetration occurs in the last sample, the drive unit shuts down automatically, and the results for each test station remain on display until recorded by the operator. A built-in battery backup insures that test results for stations that have reached penetration will not be lost should power interruption occur.

Variable Resistance Setting for Treated Samples:

Some treated leathers do not register penetration electronically at the standard ASTM resistance value of 500-10,000 ohm. Since higher sensitivity in the cut-off circuit does not affect the number of flexes necessary to induce initial water penetration, Koehler Maeser Testers are equipped with a variable resistance circuit that allows for settings of up to 50,000 ohm. Exhaustive testing has confirmed that higher resistance settings allow treated samples affected by this problem to be tested accurately in the Maeser Tester.

Conforms to the specifications of: ASTM D2099, FTM 311-8021

Sample Capacity: Up to five (5) at a time

Flexing rate: 90/minute

Counters (5): 8 Char. LCD digital, with pushbutton reset.

115V 60Hz 220-240V 50Hz 220-240V 60Hz
1-Position K55001 K55081 K55071
2-Position K55002 K55082 K55072
3-Position K55003 K55083 K55073
4-Position K55004 K55084 K55074
5-Position K55005 K55085 K55075

115V 60Hz
220-240V 50Hz
220-240V 60Hz

For Model K55005/K55075/K55085 (5-Position)

Control Unit: 15 x 10 x 4 1/2" (38 x 25.5 x 11.5 cm)
Drive Unit & Test Stations: 41 x 14 x 8 3/4" (104 x 36 x 22 cm)

Shipping Weight: 155 lbs. (70 kg.)

Dimensions: 43 x 19 x 21" (109 x 48 x 53 cm)

  • K55030 - Magnetic Balls, 1 lb Package (enough for three test stations)
  • K55040 - Plastic Enclosed Magnet