NBS Rubber Abrasion Tester – GenNBS
Rubber Testing Equipment
Standards
GenNBS is NextGen's NBS Abrasion Tester used to test the abrasion resistance of vulcanized rubber or other rubber compounds. It is commonly used for the soles and heels of footwear. It has an intelligent power failure recovery system. The unit conducts measurements through volumetric loss of specimens exposed to the action of a normalized abrasive medium secured to a rotations cylinder. Learn all you need to know about NBS Abrasion Testing Systems.
Specifications
| Specimen | 3 sets, 25.4 x 25.4 x 6.35 mm |
| Load | 2265g, 3 sets |
| Counter | LCD 0 - 999.999 |
| Rotation Speed | 45plusmn;5 rpm |
| Suction | 2kg/cm2 |
| Spare Parts | Standard Rubber (5pc) North American #40 Grit (1pc) |
| Dimension (W x D x H) | 21.65 x 11.80 x 19.70-inches 55 x 30 x 50 cm |
| Weight | 154 lbs / 70 kg |
| Power | 110V/60Hz or 220V/50Hz |
FAQs
One of the many important physical characteristics to take into account while developing polyurethanes is hardness. Polyurethanes, unlike metals, rubbers, and plastics, can be specially designed to provide a wide range of hardness with different features. In this article, we'll examine what hardness is and how it affects the performance of your product.
Hardness is a gauge of a material's resistance to force and is frequently measured on a Shore durometer scale. The surface of the material will be more easily deformed or indented, and this will result in a softer durometer reading. To accurately gauge a material's hardness, a variety of durometer scales are utilized. However, polyurethanes often employ just three scales: A, D, or 00. Softer materials are measured by Shore A and Shore 00, while stiffer materials are measured by Shore D.
For comparison, an inline speed skating wheel is approximately 80 Shore A, a gummy bear is approximately 10 Shore 00, and a hard hat is approximately 70 Shore D. Anything harder than a 90 shore D will fall within a Rockwell hardness scale, typically used to measure the hardness of metals. A Rockwell hardness scale, which is commonly used to gauge the hardness of metals, classifies anything that is harder than a 90-shore D.
If you are searching for a rubber abrasion tester, look no more. NextGen’s NBS Rubber Abrasion Tester is all you need!
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Localized friction forces that cause sliding can put a lot of energy into the rubber. When the rubber cannot endure these forces, abrasion and wear occur.
Particle impingement happens in systems like chutes, rebound plates, and sandblast hoses. Elastomers are flexible and can disperse pressures brought on by particle impact. According to a sandblast test, soft, resilient rubber is more resistant to abrasion than steel or cast iron at a 90-degree impingement angle. But not any elastomer can be applied. A hard tyre tread will degrade more quickly than a soft elastomer under the same circumstances. Which material to be utilized depends significantly on the angle of particle impact. Which material to be utilized depends significantly on the angle of particle impact. The advantage of elastomers over metals diminishes and eventually vanishes as the angle decreases below 90 degrees.
For sliding abrasion, NextGen’s NBS Rubber Abrasion Tester is your go to choice on the market!
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Abrasion comes in two flavours: sliding and impingement. The passing of an adjacent surface across the rubber surface is known as sliding. Sand grains striking the surface are an example of impingement, which is the wearing down of rubber. In actual service, sliding and impingement together cause the majority of the wear.
Localized friction forces that cause sliding can put a lot of energy into the rubber. When the rubber cannot endure these forces, abrasion and wear occur.
There are at least 25 laboratory abrasion test devices, which suggests that it is challenging to relate the results of this kind of test to service performance. The National Bureau of Standards Abrader, a slinging type abrader, is the most well-known testing apparatus in the rubber sector. The NBS Abrader operates at a steady speed with a fixed load and an established abrasive grit.
It does not provide information on a compound's performance across a wide range of conditions or regarding cut resistance, chunking, or flat spots.
NextGen’s NBS Rubber Abrasion Tester is your go to tester on the market!
Click here to obtain your personalized quote.
The abrasion resistance of vulcanized rubber or other rubber compounds is tested using GenNBS. It is frequently used for shoe heels and soles. It has a sophisticated power failure recovery system. The instrument performs measurements through the volumetric loss of samples subjected to the action of a standardized abrasive media secured to a rotating cylinder.
There are at least 25 lab abrasion test equipment options. This is a blatant sign that it is difficult to connect this kind of testing to service performance. The National Bureau of Standards (NBS) Abrader is the most extensively used testing tool in the rubber industry. It is an abrader of the slinging variety. The NBS abrader operates at a steady velocity while applying a predetermined abrasive grit to a fixed load.
It won't demonstrate how a certain molecule will function in highly variable circumstances. It won't reveal anything about the material's ability to resist cuts, flat spots, or chunking either.
NextGen’s NBS Rubber Abrasion Tester – GenNBS uses America #40 grinding paper
Click here to obtain your personalized quote.
The NBS abrasion tester, also known as the NBS abrasion testing machine, is a professional tool used to evaluate the vulcanized rubber or other rubber materials used in shoe soles and heels for their resistance to abrasion. Particularly for materials with a thickness exceeding 2.5 mm.
It is well acknowledged that when comparing various rubber materials, service performance may not always directly correspond to the outcomes of the predictive test. The abrasion resistance of materials whose compositions significantly deviate from the reference compound standard cannot be measured using the test procedure.
When contrasting polyurethane compositions with the reference compound standard, for example, the findings could be deceptive.
Correlating laboratory-based abrasion studies with end-use scenarios might be challenging. The choice of materials will benefit from the measurement of attributes. However, it is not advised to compare to the rates in actual service because the differences in temperatures and speeds may be thousands of times greater.
The rotation speed of NextGen’s NBS Rubber Abrasion Tester – GenNBS is 45±5 rpm.
Click here to obtain your personalized quote.
There are generally two forms of abrasion. Sliding and impingement are these. When the surrounding surface slides across the rubber surface, sliding abrasion occurs. Impingement abrasion, on the other hand, is characterized by sand particles that strike the surface as the rubber wears away. In actual service, the two types of abrasion combine to cause the majority of the wear.
When sliding on rubber, localized or constrained friction forces can cause significant energy damage. Abrasion and wear occur when the rubber is unable to endure such forces.
Particle impingement occurs in a variety of applications, including chutes, sandblast hoses, and rebound plates. Elastomers are easily yieldable, which allows them to disperse the tension caused by particle impingement. There will be a 90-degree impingement angle during a sandblast test. Compared to steel or cast iron, rubber is resilient and supple and has greater abrasion resistance.
NextGen’s NBS Rubber Abrasion Tester – GenNBS can load 3 specimen load sets.
Click here to obtain your personalized quote.
Correlating laboratory-based abrasion studies with end-use scenarios might be challenging. The choice of materials will benefit from the measurement of attributes. However, it is not advised to compare to the rates in actual service because the differences in temperatures and speeds may be thousands of times greater.
Here are the technical specifications of NextGen’s NBS Rubber Abrasion Tester – GenNBS
|
Specimen |
3 sets, 25.4 x 25.4 x 6.35 mm |
|
Load |
2265g, 3 sets |
|
Counter |
LCD 0 – 999.999 |
|
Rotation speed |
45±5 rpm |
|
Suction |
2kg/cm² |
|
Grinding paper |
America #40 |
|
Dimensions |
21.65 x 11.80 x 19.70-inches 55 x 30 x 50 cm |
|
Weight |
154 lbs / 70 kg |
|
Power |
110V/60Hz or 220V/50Hz |
Click here to obtain your personalized quote.
Correlating laboratory-based abrasion studies with end-use scenarios might be challenging. The choice of materials will benefit from the measurement of attributes. However, it is not advised to compare to the rates in actual service because the differences in temperatures and speeds may be thousands of times greater.
Vulcanized rubber and other rubber compounds with similar compositions are tested for their degrees of abrasion resistance using the NBS abrasion tester. Most frequently, the system complies with ASTM D1630 and D394 standards. The heels and bottoms of shoes are frequent locations for these materials. A clever system for power outage recovery is included in most models. When exposed to movements from an abrasive material that has been normalized and is attached to a rotating cylinder, it accomplishes the measurements through the volumetric specimen loss.
To sum up, NextGen’s NBS Rubber Abrasion Tester – GenNBS comply with ASTM D394 standard.
Click here to obtain your personalized quote.
The GenNBS NBS Abrasion Tester from NextGen is used to evaluate the vulcanized rubber or other rubber compounds' resistance to abrasion. It is frequently utilized for shoe heels and soles. It has a sophisticated system for recovering from power outages. The device measures the volumetric loss in samples that have been subjected to the action of a normalized abrasive media that is secured to a rotating cylinder.
The rubber materials used for shoe bottoms and heels are tested for their ability to resist abrasion. For materials that are less than 2.5mm thick, this test is not advised.
Testing techniques are frequently used to assess:
Other rubber materials that are comparable to the standard reference compound, such as vulcanized rubber
To answer your question, yes, NextGen’s NBS Rubber Abrasion Tester – GenNBS comply with ASTM D1630standard
Click here to obtain your personalized quote.
During testing, technicians follow the ASTM D1630 abrasion standard guidelines.
First, the technician unlocks a bridge holding the gauges. The bridge is then lifted to allow the arms to swing backwards for mounting of the specimen. Each compound is then mounted and secured in the slots.
The operator lowers the arms to the metallic drums. The bridge is lowered and locked in place, with a calibration weight on every arm. The technician likewise calibrates the gauges, then sets the test's number of revolutions. Finally, the operator presses the button to start the abrasion testing.
Prior to the actual testing, the equipment is given a break in run to allow the conditioning of the new abrasive paper. Garnet paper with #40 grit is used for the test. It can be used for 18 runs.
The abrader makes 500 revolutions employing break in compounds. It makes a second run of another 500 revolutions. Standard reference compounds are used for the second run. The compounds are discarded after the runs.
In the actual run, the new reference compound is used together with the previous three compounds. The four compounds then undergo four passes. Each pass tests three compounds.
The first pass if for testing the three previous reference compounds. The second pass is for the first two reference compounds along with the new compound. The third pass is for the third, together with the new compound as well as the first compound. The final pass is for testing the new compound, and the second and third reference compounds.
The operator runs the NBS tester until the compounds’ surface matches the drum’s shape. The gauges and revolution counter is set to zero. The operator then restarts the tester.
The tester runs until it 0.1 inch is scraped off from the compounds. The gauges indicate the amount of the material scraped off. The technician logs the readings and number of revolutions from each gauge. He then computes the number of revolutions required to abrade 0.1 inch from all compounds.
The tester needs another run, this time with new standard reference compounds. The reference compounds are then removed and a new compound is mounted on the arms.
The machine will stop from running when it has abraded 0.1 inch off the fresh set of specimens. The operator gets the values from the initial two runs in the latest computation.
Although the NBS abrasion test machine applies the same principle as other rubber abrasion testing machines, the NBS method is designed specifically to test materials that fall under a thickness level not lower than 2.5 mm.
The NBS testing machine employs a test specimen that is abraded against a rotating drum that is covered in abrasive materials. A weight is put in place to pull the specimen towards the drum with the use of a consistent force. The testing machine operator gauges the strength of the material by assessing the remaining volume after a test cycle.
There must be three reference compounds as well as a new reference compound used for testing. The original reference compound standard must be 8 inches long and 1 inch wide. Laboratories cut the material to the standard size specifically for rubber abrasion testing.
The standard reference compound size should measure 1 x 1 x 0.25 inch. The specimen must be of this size in order to fit into the NBS abrasion testing machine's arm slot.
If a specimen is over the standard thickness, it will require buffing until it is reduced to the appropriate size. On the other hand, thinner specimens should be stacked or piled in layers until the required thickness is achieved.
The new reference compound must have been stored during the past six months prior to the scheduled testing. A compound that has been stored for more than six months is not qualified to be used as specimen for the test.
Also, the reference compound must undergo a curing process before the test. This is necessary to make sure that the material will get an even abrasion. The compound reference is cured at a pre-determined temperature.
There is likewise a breach in the compound used for conditioning the new abrasive paper. This break has similar dimensions to the standard reference compound.
The most common test materials for the NBS abrasion testing method are vulcanized rubbers that are a fixture in the footwear industry. To be specific, these materials are used for heels and soles of shoes and other footwear.
The NBS testing machine is ideally used for testing thicker materials. A more abrasive sheet attached to the rotating drum is used to expose the rubber material to more intense revolutions. As a result, the evaluation of wear is achieved faster compared to the results obtained from testing using a DIN abrasion testing machine.
Not all rubber materials can be tested using the NBS abrasion tester. For one, the machine is not suitable for use for thin polyurethane materials. When the material is exposed to the NBS tester's higher abrasion levels, it will result to wearing through after only a small number of short revolutions. The known benchmark for materials appropriate for use with the NBS abrasion testing machine is vulcanized rubber's hardness.
The NBS tester is not suitable for any thin polyurethane materials. Exposing this material to the higher levels of abrasion on the NBS tester will cause them to wear through within only a few short revolutions. The hardness of vulcanized rubber is the benchmark for materials suitable for NBS abrasion testing.
Because the NBS tester is typically used with thicker materials, it uses a more abrasive sheet affixed to the rotating drum to expose the rubber sample to more intense revolutions. This allows for an evaluation of wear at a faster rate than that of a DIN abrasion tester.
Vulcanized rubbers are most common with NBS abrasion test method - typically found in the footwear industry.
The NBS tester uses a test specimen to abrade against a rotating drum covered in abrasive material. A weight pulls the specimen into the drum at a consistent force and the operator can gauge the materials strength by evaluating the volume remaining after the test cycle.
While the principle of the NBS abrasion tester is similar to other rubber abrasion testers, the NBS procedure is specifically designed for testing materials with a thickness of at least 2.5mm.
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