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Footwear Testing Machines

 

Abrasion Tester–Rotating Drum type (DIN Abrader)

Accessories a.Rotary cutting die
Abrasion Tester is designed to determine abrasion resistance index of natural and synthetic rubber in accordance with the above principle. It consists of test specimen holder with a cylindrical opening adjustable between 15.5 to 16.3 mm to clamp the test specimen with an arrangement to adjust the length of test specimen protruding out. The holder is mounted by a screw mechanism along a length of a rotating drum on which the abrasive cloth is fixed. The movement to the screw mechanism and drum is given by an electric motor, gearbox and chain mechanism to give the specified speed of rotation to the drum and the specified lateral movement to the test specimen holder. The swivel arm and test specimen holder are so disposed that the test specimen is pressed against the drum under the specified load with its center axis at an inclination of 3 degree to the perpendicular in the direction of rotation and placed above the longitudinal axis of drum. A rack and pinion arrangement to rotate the test specimen about its axis during the test (whenever desired) is also provided. The abrasive cloth is firmly fixed to the drum using a suitable peel able adhesive with the ends of the abrasive cloth butt jointed together. The equipment is provided with limit switches which, in addition of giving over travel safety to the movement of test holder by preventing the lower edge of the test specimen holder to touch the abrasive cloth. The equipment is built on rigid steel base and finished in grey metallic and bright chrome / zinc plating to give it a corrosion resistant finish. Moulding die, rotary type cutting die (hollow drill) for preparing test specimens and extra abrasive cloth are available as optional accessories.

 

Apparatus for Resistance to Hot Contact

Din Abrasion Tester is designed to determine abrasion resistance index of natural and synthetic rubber in accordance with the above principle. It consists of test specimen holder with a cylindrical opening adjustable between 15.5 to 16.3 mm to clamp the test specimen with an arrangement to adjust the length of test specimen protruding out. The holder is mounted by a screw mechanism along a length of a rotating drum on which the abrasive cloth is fixed. The movement to the screw mechanism and drum is given by an electric motor, gearbox and chain mechanism to give the specified speed of rotation to the drum and the specified lateral movement to the test specimen holder. The swivel arm and test specimen holder are so disposed that the test specimen is pressed against the drum under the specified load with its center axis at an inclination of 3 degree to the perpendicular in the direction of rotation and placed above the longitudinal axis of drum. A rack and pinion arrangement to rotate the test specimen about its axis during the test (whenever desired) is also provided. The abrasive cloth is firmly fixed to the drum using a suitable peel able adhesive with the ends of the abrasive cloth butt jointed together. The equipment is provided with limit switches which, in addition of giving over travel safety to the movement of test holder by preventing the lower edge of the test specimen holder to touch the abrasive cloth. The equipment is built on rigid steel base and finished in grey metallic and bright chrome / zinc plating to give it a corrosion resistant finish. Moulding die, rotary type cutting die (hollow drill) for preparing test specimens and extra abrasive cloth are available as optional accessories.

 

Compression Set Apparatus-Capacity 160 kg (for micro cellular sheets)

Accessories
a.Rotary cutting die (for 30 mm diameter specimen)
b.Thickness gauge with range 25 mm x 0.01 mm

 

Compression Tester for Safety Footwear (as per EN 344)

Extra for arrangement for Testing Nail Penetration Resistance

 

Flex Tester

Out-soles of footwear or other flexing components may suffer cracking due to flexing in use. Cracks usually develop at points of high surface strain resulting from the design of the sole pattern, without there are being any cuts due to grit etc. to initiate them. The belt flex tester is designed to flex complete soles with their patterns intact in a way similar to flexing in actual use. Tests carried out using it provide a guide to the risk of such cracks developing during use. In this test, test specimens are attached to the outside of a continuous belt, which is driven round two rollers. The larger roller drives the belt, while movement of the belt round the smaller roller provides the main flexing action. The radius of the smaller roller is chosen to make the flexing either more severe or less severe than in actual use. This form of flexing also copies the wear conditions at each step as it produces a short period of rapid flexing followed by a longer period when the specimen is not being flexed. A normal test consists of a number of flexing runs up to a total of 50,000 flexes, with an examination for cracking at the end of each run.

 

Sole Adhesion Testers

The strength of adhesion of a sole to its upper is determined by measuring the force needed to pull off the sole from the upper. A suitable last is placed inside the shoe, which is then placed on a straight edge acting as a fulcrum for applying load on the joint of the sole and upper. The maximum load the sole can withstand before coming off is determined and reported as the sole adhesion strength. This test can be carried out either at the heel or at the toe of the shoe.
Part 1 : Footwear - Methods of Test for Footwear Dimensions, Fitting, Adhesion
Test, Peel Test, Heat Resistance Test, and Ageing Test
11226 - 1993: Leather Safety Footwear Having Direct Moulded Rubber
Sole - Specification
SATRA AM 4: Adhesive Test Method Test Method for Sole Adhesion Test
B. Bennewart Flex Tester Accessories
I. Piercing tool with jig for making slit
II. Specimen cutting die (for cut samples) 4,650.00
Bennewart flex testing is intended to determine the resistance of a component of material to cut growth during repeated flexing. It can also be used to assess the effect of surface patterns on crack initiation and growth. This test is especially applicable to the outsoles of footwear, but may also be used with certain other flexible components.
DIN 53543 1979: Testing of Semi Rigid Polyurethane (PUR) Integral Cellular
SATRA PM 161: Bennewart Flex Test Resistance to Cut Growth on Flexing
C. Flexing Endurance Tester for knee boot uppers
Accessory
Specimens cutting die
D. Flexometer
I. For testing 6 specimens
II. For testing 12 specimens
III. For testing 24 specimens
Accessory Specimen cutting die
E. Full Shoe Flex Tester
The shoe flex tester is used for determination of the ability of the full shoe to withstand the effect of flexing stresses produced on the different parts of the shoe. Although the various parts like uppers and soles of a shoe are tested separately for flexing endurance with the help of flexometer and Ross flex tester, the shoe flex tester gives results which are more related to the actual performance of the shoe as a whole.
I. for testing one pair at a time
II. for testing two pairs at a time
III. for testing four pairs at a time
IV. for testing six pairs at a time
F. Ross Flex Tester
Accessories
I. Specimen cutting die
II. Piercing tool with jig for making crack
G. Vamp Flex Tester
Accessory
Specimen cutting die

 

Specific Gravity Balances (Direct Reading)

I. Range 0.9 to 3.0
II. Range 0.2 to 2.0
III. Range 0.05 to 0.7
IV. Range 0.02 to 0.5

 

Split Tear Tester

I. Range 0.9 to 3.0
II. Range 0.2 to 2.0
III. Range 0.05 to 0.7
IV. Range 0.02 to 0.5

 

Toe Cap Impact Tester

The toe portion of shoes used for industrial applications or used in mines shall be sufficiently rigid so as not to get pressed down beyond a specified limit when a heavy block falls down on it, thus preventing crushing of or injury to the toe of the user. The toes of miner's safety boots or industrial shoes are generally reinforced with a steel toe-cap to provide rigidity to them. Whether these toe-caps are sufficient robust so as to fulfill their desired function is ascertained by subjecting the toe-cap assembled in a cut-out shoe to an impact by a falling weight in a suitable equipment. The toe-cap shall not press down beyond a specified limit during the impact.
Requirements and Test Methods for Safety, Protective, and
Occupational Footwear for Professional Use
I. For testing as per specification
II. For testing as per EN 344
Accessories

 

Wear Tester for Shoe Laces

WEAR TESTER FOR SHOE LACES (LACE TO LACE ABRASION TESTER)
The resistance of shoe laces to wear and tear due to abrasion is determined by abrading two samples of the lace against each other under a specified tension and finding the number of rubs which cause one of the laces to wear off till it breaks into two. One of the laces used in the test is formed into a loop and suspended in a vertical plane. One end of the second lace is held in a rotating grip. The second lace is passed through the loop of the first lace and a specified dead weight suspended from its free end to keep both the laces under tension. The movement of the grip causes rubbing action between the two laces, which continues till one of them fails. The number of rubs needed to cause failure gives a measure of the resistance of the lace to wear.
Physical Test Method for Shoe Lace to Lace and Shoe Lace to Lace Carrier Abrasion

 

Abrasion Testers

A. Rotary Drum Abrasion Tester (DIN)
Accessories
b. Abrasive cloth (lot of five)
a. Rotary cutting die
B. Rotary Disc Abrasion Tester (Du-Pont)
Accessories
a. Abrasive discs (lot of twenty)
b. Cutting die for test specimen

 

Compression Set Apparatus - Capacity 160 kg

Accessories
a. Rotary cutting die for 30 mm diameter specimen
b. Thickness gauge with range 25 mm x 0.01 mm

 

Hardness Testers

A. I R H D Hardness Tester
B. Shore ‘A’ Hardness Tester (Kori Make)-Extra for stand

 

Hot Air Oven (Universal Memmert type)

Extra for Digital Temperature Controller cum Indicator

 

Ross Flex Tester

Accessories
a. Piercing tool with jig
b. Specimen cutting die

 

Specific Gravity Balances

A.Range 0.2 to 2.0
B.Range 0.05 to 0.7
C. Range 0.02 to 0.5
07. Split Tear Tester

 

Tensile Testing Machines with Self Tightening Roller Type Grips

A. Electronic Model
I. Model TE-M 200
II. Model TE-R 200
a. Specimen cutting die
b. Specimen cutting press (Manually Operated)
i. Screw type with hand wheel
ii. Hydraulic type (2 ton capacity)
c. Bench type thickness gauge (10 mm)