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Home  >>  Products  >>  Abrasion  >>  Washability Test Equipment
Washability / Linear Test Equipment

Models D10 & D16

Model D10 is offered by Gardco as an improvement over existing washability machines. It is a single cycle rate (cyc/min) machine with all of the other advantages listed (see Characteristics Common To All Models) for the entire Gardco line of Linear Motion Test Equipment.

Model D16 is basically the same as Model D10 except it provides a six inch longer stroke length and accommodates a longer test panel.

Washability Machine

  • Set Speed: 37 Cycle Rate
  • Designed for Present Day Washability Tests: Applicable to all present set speed 37 cycle rate tests called for in various specifications.
  • ASTM Specifications: Applicable to tests calling for use of 37 cycle rate Washability machines.
  • FTMS, MIL, ISO and Other Specifications: Also applicable to tests calling for set rate, 37 cycle machines.
  • Runs Three Tests Simultaneously: Up to three multiple specimen tests possible.
 
Model D16 Only
  • Long Stroke Length: 16"
  • Accommodates Longer Test Panels: Stroke is designed for long panel washability tests possibly called for in future specifications.


Technical Data
  Model D10 Model D16
Stroke Length: 10" 16"
Acceleration Distance Minimum: 1.1" 1.2"
Acceleration Distance Maximum: 1.5" 1.2"
Cycles Per Minute: 37 37
Velocity, in./sec.: 14 22
Drive Fork Force Maximum lbs.: 24 17


See Price List

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Catalog No. Model No. Stroke Length Base Cutout Tray Size Cycle Rate Variable Speed Force Sensing Recorder Option
WA-2151 D10 (D1)* 10" No 8" X 18" 37 No No No
WA-2171 D16 (DL1)* 16" No 8" X 24" 37 No No No
* Replaced Model

 

Variable Speed Models (V)

Models D7V, D8V, D9V, D10V, D12V and D16V

The variable speed models have all of the features as the set speed models, plus variable speed. Each model has its own stroke length for its particular application. The stroke length is centered and shortened from both sides. Rate limits shown for all variable cycle rate (cyc/min) machines are factory set, but may be shifted for specific requirements. Instructions for this change are furnished with the unit.

Model D12V, when fitted with the test sample tray serves as a laboratory machine. This model has the base cutout feature. When the tray is removed, an extended drive fork may be added to pass through an opening in the base plate. This permits a test to be conducted directly on the surface on which the machine is placed. Stainless steel handles are attached to the ends of the housing to enhance portability for field use.

Variable Speed Models

  • Variable Set Control: Allows accelerated testing. Possibly called for in future specifications.
  • Designed for Present Day Washability Tests: Applicable to all present set speed 37 cycle rate tests called for in various specifications.
  • ASTM Specifications: Applicable to tests calling for use of 37 cycle rate Washability machines. FTMS, MIL, ISO and Other Specifications: Also applicable to tests calling for set rate, 37 cycle machines.
  • Runs Three Tests Simultaneously: Up to three multiple specimen tests possible.
 
Model D12V Only
  • Base Cutout Feature: Allows test to be made directly on surface on which machine is placed; such as a ship deck or mall floor.
  • Use on Site / in Lab: Extended fork (WA-2195) is required when tests are made through cutout base. All models come with standard drive fork, extended drive fork must be ordered separately.
  • Handles: For portability to test site.


Technical Data
  D7V D8V D9V D10V D12V D16V
Stroke Length: 7" 8" 9" 10" 12" 16"
Acceleration Distance: 1.1" 1.1" 1.2" 1.3" 1.2" 1.5"
Cycles per Minute Mini.: 7 6.5 6 6 5 4.5
Cycles per Minute Max.: 70 65 60 60 50 45
Velocity, in./sec. Mini.: 2 2 2 2.3 2.2 2.7
Velocity, in./sec. Max.: 20 20 20 23 22 27
Drive Fork Force Max. lbs.: 52 49 49 45 45 37


Click here to check out this Article on the Protocol for the Evaluation of Bactericidal Activity of Hard, Non-porous Copper/Copper-Alloy Surfaces which uses the D10V for the testing.


See Price List

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Catalog No. Model No. Stroke Length Base Cutout Tray Size Cycle Rate Variable Speed Force Sensing Recorder Option
WA-2123 D7V 7" No 8" X 18" 7-70 Yes No No
WA-2133 D8V 8" No 8" X 18" 6.5-65 Yes No No
WA-2143 D9V 9" No 8" X 18" 6-60 Yes No No
WA-2153 D10V (DV1)* 10" No 8" X 18" 6-60 Yes No No
WA-2163 D12V 12" No 8" X 24" 5-50 Yes No No
WA-2164 D12V 12" Yes 8" X 24" 5-50 Yes No No
WA-2173 D16V (DLV1)* 16" No 8" X 24" 4.5 - 45 Yes No No
* Replaced Model

 

Variable Speed / Force Sensing (VF)

Models D7VF, D8VF, D9VF, D10VF, D12VF and D16VF

The variable speed / force sensing models are basically the same machines as the variable speed machines except a force transducer is added to the drive fork linkage. Output from the force transducer is displayed in large numbers on the front of the machine. The display registers resistance to motion of the fork to the one-tenth pound .

Model D12VF, when fitted with the test sample tray serves as a laboratory machine. This model has the base cutout feature. When the tray is removed, an extended drive fork may be added to pass through an opening in the base plate. This permits a test to be conducted directly on the surface on which the machine is placed. Stainless steel handles are attached to the ends of the housing to enhance portability for field use.


  • Built-In Force Measurement Feature: Resistance to motion (a measurement proportional to friction) is shown on control panel to the nearest 1/10 lb.
  • Variable Speed Control: Allows accelerated testing. Possibly called for in future specifications.
  • Designed for Present Day Washability Tests: Applicable to all 37 cycle rate test specifications.
  • ASTM Specifications: Applicable to Tests calling for use of 37 cycle rate Washability machines. FTMS, MIL, ISO and Other Specifications: Also applicable to tests calling for set rate, 37 cycle machines.
  • Runs Three Tests Simultaneously: Up to three multiple specimen tests possible.
 
Model D12VF Only
  • Base Cut Out Feature: Allows test to be made directly on surface on which machine is placed; such as a ship deck or mall floor.
  • Use on Site / in Lab: Extended fork (WA-2195) is required when tests are made through cutout base. All models come with standard drive fork, extended drive fork must be ordered separately.
  • Handles: For portability to test site.
 
Model D16VF Only
  • Long Stroke Length: 16"
  • Accommodates Longer Test Panels: Stroke is designed for long panel washability tests possibly called for in future specifications.


Technical Data
  D7VF D8VF D9VF D10VF D12VF D16VF
Stroke Length: 7" 8" 9" 10" 12" 16"
Acceleration Distance: 1.1" 1.1" 1.2" 1.2" 1.2" 1.5"
Cycles per Minute Min.: 7 6.5 6 6 5 4.5"
Cycles per Minute Max.: 70 65 60 60 50 45
Velocity, in./sec. Mini.: 2 2 2 2.3 2.2 2.7
Velocity, in./sec. Max.: 20 20 20 23 22 27
Drive Fork Force Max. lbs.: 52 49 49 45 45 37


See Price List

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Catalog No. Model No. Stroke Length Base Cutout Tray Size Cycle Rate Variable Speed Force Sensing Recorder Option
WA-2125 D7VF 7" No 8" X 18" 7-70 Yes Yes No
WA-2135 D8VF 8" No 8" X 18" 6.5-65 Yes Yes No
WA-2145 D9VF 9" No 8" X 18" 6-60 Yes Yes No
WA-2155 D10VF (DVF)* 10" No 8" X 18" 6-60 Yes Yes No
WA-2166 D12VF 12" Yes 8" X 24" 5-50 Yes Yes No
WA-2175 D16VF (DLVF1)* 16" No 8" X 24" 4.5 - 45 Yes Yes No
* Replaced Model

 

Variable Speed / Force Sensing / Interface (VFI)

Models D5.5VFI, D7VFI, D8VFI, D9VFI, D10VFI, D12VFI and D16VFI

This model combines the variable speed and force sensing features with an interface to transmit the force signal to a computer using a data acquisition software package such as Windows Hyper Terminal via RS232. It is available in stroke lengths of 5.5", 7", 8", 9" & 10", 12" &16" with stroke length under 10" reduced from the left side of the machine.

A rapid response external recorder is highly recommended for use with these models in order to take full advantage of the force measuring feature. Note Model D12VFI has base cutout feature for on-site testing.

Model D10VFI pictured right.

D10VFI

  • Measures Both Break-Away & Kinetic Friction: This feature through PC data acquisition allows for the recording with graphical representation of test results.
  • Built-In Force Measurement Feature: Resistance to motion (a measurement proportional to friction) is shown on control panel to the nearest 1/10 lb.
  • Variable Speed Control: Allows accelerated testing. Possibly called for in future specifications.
  • Designed for Present Day Washability Tests:/span> Applicable to all 37 cycle rate test specifications.
  • ASTM Specifications: Applicable to tests calling for use of 37 cycle rate Washability machines. FTMS, MIL, ISO and Other Specifications: Also applicable to tests calling for set rate, 37 cycle machines.
  • Runs Three Tests Simultaneously: Up to three multiple specimen tests possible.
 
Model D12VFI Only
  • Base Cut Out Feature: Allows test to be made directly on surface on which machine is placed; such as a ship deck or mall floor.
  • Use on Site / in Lab:
  • Extended fork (WA-2195) is required when tests are made through cutout base. All models come with standard drive fork, extended drive fork must be ordered separately.
  • Handles: For portability to test site.
 
Model D16VF Only
  • Long Stroke Length: 16"
  • Accommodates Longer Test Panels: Stroke is designed for long panel washability tests possibly called for in future specifications.


Technical Data
  D5.5VFI D7VFI D8VFI D9VFI D10VFI D12VFI D16VFI
Stroke Length: 5.5" 7" 8" 9" 10" 12" 16"
Acceleration Distance: 1.1" 1.1" 1.1" 1.2" 1.2" 1.2" 1.5"
Cycles per Minute Min.: 10 7 6.5 6 6 5 4.5
Cycles per Minute Max.: 70 70 65 60 60 50 45
Velocity, in./sec. Mini.: 2 2 2 2 2.3 2.2 2.7
Velocity, in./sec. Max.: 20 20 20 20 23 22 27
Drive Fork Force Max. lbs.: 52 52 49 49 45 45 37


See Price List

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Catalog No. Model No. Stroke Length Base Cutout Tray Size Cycle Rate Variable Speed Force Sensing Recorder Option
WA-2117 D5.5VFI 5.5" No 8" X 18" 6-60 Yes
WA-2127 D7VFI 7" No 8" X 18" 7-70
WA-2137 D8VFI 8" No 8" X 18" 6.5-65
WA-2147 D9VFI 9" No 8" X 18" 6-60
WA-2157 D10VFI 10" No 8" X 18" 6-60
WA-2168 D12VFI 12" Yes 8" X 24 5-50
WA-2177 D16VFI 16" No 8" X 24" 4.5 - 45
* Replaced Model

 

Pneumatic - Variable Speed Model (VP)

Models D10VP

Model D10VP Pneumatic, Variable Speed Wear Tester. Note capability of testing three specimens simultaneously with 3 brushes in tandem.

The Model D10VP Pneumatic, variable speed washability machine (WA- 2653) is furnished complete with 1/4 NPT quick-disconnect air source fitting, muffler and filter for exterior connection to the machine.

Model D10VP
Top Plan View showing location of pneumatic drive components. Top of Model D10VP

  • No electric motor hazard
  • Operates on compressed air
  • Air pressure required is 80 psi
  • Flow rate is 4 CFM
  • Designed for determining effectiveness of liquid detergents,metal cleaners, some solvents, etc.
  • Designed for present-day and future washability and wear tests
  • Variable speed up to 45 cycles per/min.
  • Heavy duty double chain drive
  • 10" stroke-length—short stroke length models optional (made to order)
  • ASTM Specifications applicable to tests calling for use of 37 cycle rate washability machines.
  • ISO, MIL, FTMS & other specifications; also applicable to tests for set rate 37 cycles
  • Runs 3 tests simultaneously. Up to 3 multiple specimens possible
  • Accommodates specimens up to 2-1/2" thick.


Technical Data
  Model D10VP
Stroke Length: 10"
Acceleration Distance: 1.1"
Cycles per Minute Min.: 15
Cycles per Minute Max.: 45
Velocity, in./sec. Mini.: 5.6
Velocity, in./sec. Max.: 16.8
Drive Fork Force Max. lbs.: 45 lbs.
Linear Stroke: 7.8 lbs.


See Price List

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Catalog No. Model No. Stroke Length Base Cutout Tray Size Cycle Rate Variable Speed Force Sensing Recorder Option
WA-2653 D10VP 10" NO 8" X 18" 15-45 YES NO NO
* Replaced Model

 

Compliance

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All Gardco designed and manufactured linear motion test equipment is described and specified in much greater detail than is called for in most of the many methods of test developed and promulgated by ASTM and other industrial and Federal agencies. Care has been taken in design and manufacture not only to overcome deficiencies in earlier equipment of this type but also to comply with the specifics as well as the intent of existing standards that call for the use of such equipment. The following is a list of standards and methods of test that call for this type of equipment.

 

References

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ASTM D 1792 " Long Term Removability Properties of Emulsion Floor Polishes" • ASTM D 2198 "Stain Removal from Multicolor Lacquers" • ASTM D4213 "Wet Abrasion Resistance of Interior Paints" • ASTM D 2486 "Scrub Resistance of Interior Latex Flat Wall Paints" • ASTM D 3206 "Standard Test Method for Soil Resistance of Floor Polishes" • ASTM D-3450 Washability Properties of Interior Architectural Coatings & ASTM D 4828 • ASTM D 4488 Standard Guide for Testing Cleaning Performance of Products Intended for use on Resilient Flooring and Washable Walls • Military Specifications MIL-C-3004, MILC- 46057, MIL-E-11237, MIL-P-1334, MIL-P-15422 • Rock Island Arsenal Specification RIX-268 • Navy Specification 51C20 • Commonwealth of Penna. Specification No. W-4 • Canadian Government Specification 26-G-3 • FTMS 141a, Method 6141, "Washability of Paints" • FTMS 141a, Method 6142, "Scrub Resistance" • FTMS Method 536/6701 • Federal Specifications: P-C-431, P-D-220, P-R-201, P-W-155, T-1279, TT-P-26, TT-P-29, TT-P-30, TT-P-47, TT-P-51, TT-P-508, TT-P-1932, TT-E-505, TT-E-506, TT-E-509, TT-C-535, TT-C-555.

 

Simple Operation

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  1. Connect a compressed air supply to the 1/4" npt bulkhead fitting on left side of the machine.
  2. Set predetermined counter for desired number of cycles. Count-down counter will automatically stop the machine when zero is reached.
  3. Depress green button to start machine.
  4. Set speed cycle by turning micrometer style speed control knob on front panel. Turn clockwise to decrease speed; counter-clockwise to increase speed.
  5. Depress red stop button on front panel to stop machine.
  6. Secure the item to be evaluated in test position in accordance with appropriate standard procedure and start machine.
  7. Test can be interrupted at any time by pressing red button.
  8. See instruction manual for complete procedures.

 

Characteristics Common to Pneumatic Model

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  • Dimensions: The base is 0.25 inch thick aluminum plate. It is 16" deep and 16" long. One-half of the depth of the machine supports all functional mechanisms and their housing. The front half of the base provides the working surface or area for product testing. The base
    is supported on one-half inch high feet to provide clearance for clamping test products at both ends and along the entire front edge of the base.
  • Net Weight: Approx. 40-50 pounds.
  • All functional elements are mounted above the normal level for product testing and therefore are not subject to damage by accidental liquid spills.
  • Heavy gage brushed aluminum houses all functional components with only the drive fork bracket extending forward to carry the drive fork over the test area. Access to the component area is by removal of only four screws from the lid of the housing. All controls and indicators
    are mounted on the front surface of this housing. The housing is ten inches high and the PSI dial is viewed through the cut-out on top cover.
  • The drive fork is fabricated from 1/16" stainless steel. It is held in place by a bracket of the same material which is secured to linear bearings carried on accurately spaced parallel bars. Reciprocation of the drive fork assembly on the parallel bars is by a unique double chain and sprocket arrangement. There are no belts, cables, springs or other such mechanisms in the drive chain requiring service or maintenance.
  • Absolute linearity is obtained with the unique drive system. Acceleration and deceleration is sinusoidal providing for the smoothest possible change in direction at the end of each stroke.
  • The drive fork is adjustable vertically with respect to its drive bracket. In its lowermost position it is less than one-half inch above the test surface with the tray and glass plate in place. This relative low position minimizes the tendency of the carried surface to tilt in the
    direction of travel. The fork can be raised in half inch steps, inverted and further raised to accommodate test specimens up to two and a half inches thick without losing close proximity to the test surface.
  • Design of the drive fork cradles accessories used in the test and permits them to simply be lifted free. There are, therefore, no rotational or other unbalancing forces imposed on such auxiliaries. They are “Free Floating” and self-leveling.
  • There are three equally spaced holes in each of the tines of the drive fork. A test auxiliary can be placed in either of the three pairs of holes to accommodate positioning of the test specimen. The spacing also permits simultaneous cradling of three brush boxes, two abrasion boats or two sponge boxes for multiple specimen testing.
  • The cycle counter is air operated and is energized through a switch from the drive linkage. The desired number of cycles is set by hand on push buttons on the face of the counter. There are five of these buttons for a maximum setting of 99,999. On start of operation, the counter cycles backwards from the preset value until it reaches zero and turns off the machine. The counter then may be manually reset to run the same number of cycles or the count may be changed.
  • Furnished with each machine is an instruction manual covering operation and maintenance. Included are schematic diagrams.
  • After every 100 hours of operation, the filter regulator lubricator should be purged of accumulated moisture. Add lubricant if needed. (See instruction manual)
  • After 2000 hours, or once a year, oil the drive chains. Brush oil directly on rollers. Use an artist brush. A few drops of oil should be placed on the parallel bars and at each end of the “tail” sprocket bearings.



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