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EN 71 KE Tester
Kinetic Energy Tester T011

T011 Kinetic Energy Tester is used to test the maximum energy produced from projectile toy shoot bullets or launched bows, so as to evaluate ejection articles will cause injury for children or not.

Dynamic Strength Tester
Toy Dynamic Strength (2m/s) Tester T012

T012 Dynamic Strength & 2m/s Tester is used test dynamic strength for wheeled ride-on toys. Simulate children wheeled ride-on toys vertically crush the inelastic step 50 x 50 mm at the stable speed of 2m/s±0.2/s, and then check the damage degree. This device can be used for children ride-on toys, such as children tricycle, toy bikes, scooters, etc.

Sharp Point Tester
Sharp Point Tester T004

Sharp point tester is to determine whether accessible sharp points on child-related products are likely to cause injury. If the accessible sharp point penetrates a specified depth into the small rectangular opening of the tester, the LED is illuminated to indicate that the point is unacceptably sharp.

Mouth Toy Endure Tester
Mouth Actuated Toy Tester T005

Used to test the safety of the Mouth-Actuated Toys, such as whistles with a ball, the sounders with a reed and other toys. Load the mouth-actuated projectile toy with the intended projectile and apply a pressure of 13,8 kPa ± 5 % in the direction of the mouthpiece for 5 s. Carry out the test 10 times in total.

Toys Accessibility Probe
Accessibility Probe T006

Accessibility Probe is used to assess the surface or components (points and surface of toys) of toys is likely to be touched and lead to hazardous. If the probe contacts the part or component, the part or component is considered to be accessible. Therefore, to do related tests based on standards to decrease hazards for children. This tools are including 2 parts: Probe A and Probe B. An accessible point for a toy or article intended for children 3 years of age or less is one that can be contacted by any portion forward of the collar of the accessibility probe designated as Probe A . An accessible point for a toy or article intended for children over 3 years of age is one that can be contacted by any portion forward of the collar of the accessibility probe designated as Probe B . An accessible point for a toy or article intended for children of ages spanning both age groups is one that can be contacted by any portion forward of the collar of either Probe A or B.

EN 71 toy tester
Sharp Edge Tester T001

T001 Sharp edge tester is used to determine whether the accessible edges on child-related products are likely to cause potential risk of injury after normal use and reasonable abuse. Those child-related products include metal or glass edges on toys and other articles intended for use by children under 8 years of age.

ISO 17707 Whole Sole Flexing Machine
Whole Sole Flexing Machine H018

H018 Whole Sole Flexing Machine, to measure the material's resistance to incision elongation(cut growth) during repeated flexing, especially for outsoles of protective footwear, including soles. The machine has three vertical or horizontal stations available for customized and is easy to operate. Loading, unloading and measurements are also much easier to carry out with the workstations provided. The sample flexes at speed of 140 times per minute, and the exact number is recorded in a counter that has been preset to the required number of flexing. A fixture can be used to position the steel chisel, which can be used to support the sample after the initial chipping. All mobile parts that need access are fully protected with a fully interlocked security cover to ensure that the machine complies with the latest security regulations. A manual device can be used to measure the hardness of the outer bottom and check whether the outer bottom must be twisted in accordance with EN ISO 20344. UTS also provide a version of this machine for testing at low temperatures allowing tests to be conducted down to -20°C.

Water Resistance Tester
Shoe Water Resistance Tester H009

To determine the waterproofness property for finished shoes. Within the specified depth of water, whole shoe will be mechanically brushed by rotary wet brush, so as to measure the water penetration property for finished shoe.

NBS Abrader - Abrasion Tester
NBS Rubber Abrasion Tester H014

To determine the abrasion resistance property for rubber or other compounds, sole and heel materials which are not less than 2.54mm in thickness. This machine has memory function so that users can set the number of tests by themselves. The current records will be kept not to change even if power failure or stop occurs. It also can be connected to a cleaner for easy cleaning.

astm d1424  Elemendorf Tear Tester
Digital Elemendorf Tear Tester M006B

To determine the tearing resistance strength (Elmendorf method) for various textiles. Also available for thick paper, plastic cloth and electrical insulating tapes. Three interchangeable pendulums ranging from 16,000 to 128,000 Millinewtons (mN) can be selected separately for multiple test method compliance.

45 Degree Flammability Tester
45 Degree Automatic Flammability Tester M015

To determine textile damaged area and length at 45 degree condition and the times of touching flame when textile is melted to specified length after heated at 45 degree condition. Stainless steel test cabinet with glass observation panel provided with automatic timing of flame spread in 0.1 second increments from ignition. Automatic or manual flame impingement for 1,5 or 20 seconds.

Water vapor transmission rate tester
Water Vapour Permeability Tester M029

To determine water vapor permeability (waterproofing and moisture-penetration performances) for various fabrics (including moisture permeable coated fabrics) and Non-woven fabric for garment usage including bat wool, space cotton, etc.

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Lissajous graphic principle analysis

2019-04-23

Working principle of martindale abrasion tester:

Under certain pressure, the circular fabric sample and the standard abrasive rub against each other according to the movement track of the Lissajous curve, leading to the sample damage. The wear resistance of the fabric is represented by the wear times of the damaged sample.

The martindale apparatus is used for testing pilling of fabrics under slight pressure.The circular specimen is rubbed against the abrasive (i.e. the standard fabric) by the plane motion of the trajectory forming the pattern of Lissajous under the specified load.A test fixture containing a sample or abrasive rotates freely about an axis perpendicular to the horizontal plane.Whether to install the sample or abrasive in the sample fixture depends on the test method adopted.Its trajectory forms a complete plane friction movement of Lissajous's figure, including 16 times of friction, namely, the two outer driving wheels of martindale wear tester rotate 16 times, and the inner driving wheels rotate 15 times.The standard stipulated Lissajous figure is the figure formed by the movement of change.From a circle to a narrowed ellipse until it becomes a straight line, from which the line asymptotically widens to a wider ellipse until the circle repeats the motion diagonally.However, many of the instruments produced by domestic small companies that do not have the production qualification and processing technology do not have the li saru track specified by the standards at all, which leads to the uncertainty of the test results.

martindale abrasion tester

Standard motion trajectory of Lissajous's figure:

Remove the material from the grinding table, cover the surface of each grinding table with a plain white paper with diameter (100 5) mm and minimum unit area mass of 100g/m2, and fix it on the grinding table to ensure the surface is very smooth.

Insert the stainless steel sleeve with the same diameter as the sample pin shaft into the axle sleeve of the sample guide plate in turn, and install the common ballpoint pen to make the nib contact with the surface of the paper.Turning the instrument so that the number of times of friction is 16, forming a completed pattern of Lissajous.

Draw two parallel lines that intersect the outermost curve of the two opposite sides of the graph.Draw two parallel lines on the other two sides, and make sure they intersect vertically.Using appropriate methods, each side was measured to the accuracy of 0.2mm.Check the 31 lines drawn. The important thing is to check the symmetry of the graph.

Draw two parallel lines that intersect the outermost curve of the two opposite sides of the graph.Draw two parallel lines on the other two sides, and make sure they intersect vertically.Using appropriate methods, each side was measured to the accuracy of 0.2mm.Check the 31 lines drawn. The important thing is to check the symmetry of the graph.

Martindale abrasion tester is suitable for testing the pilling degree of GB/T4802.2, ASTM D4970, iso12945-2 and other fabrics.Principle: the circular sample and the same material fabric under the given pressure, friction with Lissajous figure trajectory, after reaching the specified revolution, assess the sample pilling grade.It is also suitable for testing the abrasion resistance of GB/T13775, ASTM D4966, ISO12947 and other fabrics.Principle: the circular fabric specimen, under certain pressure, rubs against the standard abrasive according to the movement track of Lissajous curve, leading to sample damage, and the wear resistance of the fabric is represented by the wear times of the damaged sample.

The general

The martindale wear tester consists of a base with a grinding table and a transmission device.The transmission device consists of two outer wheels and one inner wheel, and the mechanism makes the movement track of the guide plate of the sample fixture form the figure of Lissajous.

Note: the martindale apparatus produces an almost perfect Lissajous movement.

The guide plate of the sample fixture moves in a plane driven by the driving device. Every point of the guide plate depicts the same figure of Lissajous.

The guide plate of the sample fixture is equipped with bearing seat and low friction bearing, which drives the pin shaft of the sample fixture to move.The bottom end of each sample fixture pin shaft is inserted into its corresponding sample fixture socket, and the loading block can be placed on the top of the pin shaft.The sample jig includes a socket, a block and a compression nut.The tester should be equipped with preset counting function to record The Times of friction.


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