suction testing post articles about how to testing and results with different devices and suction from different vendors.

heavy duty suction cups

Heavy Duty Suction Cup Testing

Heavy duty suction cups have a number of applications, and can be integrated into towel rack products, soap dishes, suction hooks, shelves, kitchen fittings, and many others. The uses of these suction cups are endless, and they provide convenience and durability to the customer.
Of these heavy duty suction cups, Garbath is the manufacturer that sits a cut above the rest.
Garbath have been in the field of of suction systems for seven years, and have been dedicated to the research and testing of products in a number of ways, to ensure that their products actually attain the quality and capability that is advertised.
Other heavy duty suction cups may state a maximum weight, or a maximum amount of time that a suction device can hold a certain weight, but they are rarely tested, and therefore cannot validate the claims they make about their products. Some products even claim that they can maintain suction forever, which vacuum theory suggests to be impossible.
So how does the customer know that a heavy duty suction cup is really capable of the suction that it suggests? How do they really know that it can hold the amount of weight that it advertises, or that it will keep its suction for the number of years stated on the product?

  • Heavy Duty Suction Cup Testing

Garbath suction cups are tested and inspected by a third party company, and the products are certified upon inspection, so the supplier and consumer alike knows the true capabilities of the product.
There are several ways that a heavy duty suction cup product can be tested. The first is a suspension endurance test; the suction device is placed on a surface, and a standard weight added, usually 5Kg. The product is left bearing the weight until it begins to give way, becomes damaged, or loses its suction. 5Kg is the amount of weight recommended for home use, and the test shows that the product can suck to tile or glass, bearing this amount of weight, for over 365 days. When it slips it can be easily reused.
Other types of test are the pull test, which tests the amount of weight required to cause the product to immediately slip down, or drop. Weights are added gradually to test the suction cup’s maximum capacity, which is certified to stand at around 34Kg.
The bearing capacity test works in a similar way. The term, originally used for soil testing, tests for the amount of contact pressure before the product fails. The test shows weights hanging off a rope, connected to a hanging hook suction product, and shows a bearing capacity of 24kg.

  • Quality Control Is Everything

This level if independent testing gives the product a genuine, and certifiable boast. The weights and capabilities displayed on tested products are not advertisements; they are statements of the actual functions of the product, and give the customer a guarantee and a peace of mind. They know they are purchasing quality, and strength. They can trust what they are buying.

Time Test of Suction Cup

Suction cups are very handy items to have. For maximum quality assurance they should be subjected to the time test of suction cup. Vacuum suction cups use the fluid pressure of air to stick to surfaces such as glass due to a vacuum that is created. Basically, a suction cup can adhere to any nonporous surface. The principle is quite simple. The suction cup is curved inwards and this is the part that is pressed against a nonporous surface. The air and moisture between the cup and the surface flows out as the cup is pressed. When the suction cup is released, it goes to its original shape. The space between the surface and the cup is now a partial vacuum of low pressure. The combination of the low pressure inside and the higher atmospheric pressure exerted on the outside caused a suction cup to remain adhered to the surface.

Time Test of Suction Cup

When a suction cup is attached to a surface, the amount of time that it will remain adhered depends on the length of time that fluid –air and moisture- will take to get back into the cup. Once the pressure is changed and the vacuum no longer exists, the suction cup will fall off. The suspension endurance test taken for the suction cup is meant to evaluate how long a suction cup will remain attached to a surface with a load hanging on it. This endurance test is important when one is considering the right suction cup to purchase. Such a study was carried out for by the Garbath Houseware Company Ltd and it outlines how to properly carry out the time test of suction cups.


The vacuum suction cup was attached to a clean glass surface. Glass is nonporous and therefore an ideal test surface. For result comparison purposes, two samples were set up. To each, a load of five kilograms was attached vertically. The environmental conditions were at average. The temperature was at a range of 20-30.C and the humidity was 30%-90% RH. These are basically the conditions that are experienced in normal room environment. The load remained static during the period of testing and the endurance time test period was one year long.

Factors to Consider in Time Test for Suction Cup

There are various factors affecting the weight that can be supported by a particular suction cup. Different sizes will support different weights. For instance, a small suction pump can be very effective in holding an item in the house but it cannot be used in carrying car windshields. The direction that the load faces relative to the suction cup is very important. The vertical direction is the most strenuous to the surface. Porosity of the surface is important. This is an important factor to consider before using any suction cup. Other factors include the rigidity of a load, temperature and other conditions such as humidity.

Results and Cautionary Measures

After the period set for the time test of suction cup elapsed, the results were reviewed. The success of such an experiment depends on meeting requirements that were set beforehand. In this case, the ability of the suction cup being capable of supporting a load of five kilograms without sliding or falling off. In the case of Garbath Houseware, the suction pump passed the test. At the end of the experiment, the samples were found to still be firmly attached in the same position. The temperature also remained in the same range while humidity was 51%-89% RH.

It is important for such a test to be conducted by a professional. These tests should be carried out in normal atmospheric conditions for them to be viable. The surfaces should be nonporous to avoid hazards as well as incorrect results. Proper use of these suction pumps should always be applied.

Application of Suction Cups

The uses of suction cups vary and different sizes can be applied in performing various tasks. The most popular use of suction cups is hanging objects on various surfaces such as walls. They are handy and convenient because unlike nails or screws, they do not damage the walls. They are mostly used in bathrooms on the nonporous tiles. Commercially, they are used in carrying of glass such as window panes in construction. Basically, as long as the physics principles are constant, suction cups are very versatile tools as long as they tested for quality and endurance.

Test outdoor under different weather

Testing Weight Holding Capability of Vacuum Suction Cup

The technology of vacuum suction cups has been catching on fast; particularly for the use of hanging items on a surface. This is because the technology behind suction cups allows items to be hung without causing damage to the surface, replacing the previously popular choice of nails. This is how it works: when the suction cup is placed on a wall or any flat surface, the air inside it is pushed out, eliminating pressure inside. Without pressure, a vacuum is created. This vacuum is what seals the cup to the surface. Different vacuum suction cups in the market come with different prices and different capabilities. When they lose the vacuum that binds them to the surface, suction cups will detach from the surface.

If you have already purchased a vacuum suction cup, it is imperative that you perform a weight test of suction cup in order to determine the item’s capabilities. By doing this, you avoid the risk of putting too much weight on the cup and causing damage.

For those who use vacuum suction cups to hold or hang items on the wall, it is imperative to perform a pull test. To test the pulling ability of a vacuum suction cup, the following instruction may be of use. Suction cups used on the wall to hang items are especially recommended to this test in order to be aware of the optimum holding capacity.

Before beginning to add weights, ensure that the suction cup and the surface on which it will be placed are clean and clear of any debris or dirt. If either the surface or suction cup needs to be cleaned, wash with warm water and soap and dry gently with clean cloth or paper towel. To better suction, apply a small amount of cooking oil on either the rim of the suction cup or the surface. Once everything is clean, gently press the suction cup all the way down until it is flat. Press the cup all the way down, against the surface. Ensure that it is firmly attached in order to proceed with the weight test.

The weight test requires adding weights to the cup in 5 kg increments. Also, there should be a 30 second time period between adding weights. This is to allow settlement of the previous weight and measuring reaction before adding more.

1. Hang a holding utility on the cup. Making sure it is capable of holding up to 35 kg.

Note: to make the holding utility, try attaching strings to a small sized box. The strings should meet in the middle where they can be connected to the suction cup handle. Also, the weights should be standard official weights for preciseness purposes.

2. Put 5kg on the holding utility and observe the cup. At this stage, it is probable that nothing will occur because many suction cups are able to hold this weight.

3. Add another 5kg after 30 seconds while observing.

4. After 30 seconds, add another 5kg of weight. Again, observe the cup carefully. When observing make sure you look out for any abnormalities such as popping noises which may indicate that the suction cup is losing vacuum and may detach. However, at this stage this is unlikely.

5. Continue adding 5kgs after every 30 seconds and observe carefully any reactions from the suction cup.

6. The average optimum holding capability of vacuum suction cups has been measure to be 34.0 kg. Once you begin approaching these weights, carefully keep an eye on the suction cup. If it exceeds 34.0 kg, it is highly capable of holding items of that weight for a long time after initial mounting.

Note: when performing the test, keep in check any noise that the cup may make for it may be an indication of loss of suction on the cup. If the suction cup gives in under 20 kg, try re-cleaning the surface and the cup. Also, this is when adding oil is recommended.

Weight tests on suction cups are important. It enables you to determine its weight holding capability. By knowing the maximum limit, you are able to determine which item can and which items cannot be held by the cup. Also, when purchasing a suction cup, ask questions to customer care regarding which brand is suitable for your needs. The above is an insight with this respect.

Fore more details about weight tests result , please  read pull test report .

Ways To Review Suction Cups And Their Performance

Modern science and technology have provided mankind as a whole with many ingenious and useful tools which make many common tasks much easier and more efficient. In many cases, the tools that work the best make use of basic principles of physics, and also feature simple yet effective designs.

One of these modern tools that is useful in many situations is known as the suction cup. Modern suctions cups are used in quite a few ways, and the applications for these simple yet supremely handy instruments are many and varied.

Not all suction cups are created equal, some being used in situations where industrial strength performance is needed, and some being applied in situations where the standards of performance are less stringent. Being able to rate the suction cups based on the job that needs to be done is a valuable skill to have, and that will be the focus of this article.

The subject of suction cups and their performance raises some interesting and relevant questions. What is the history of the suction cup? How do suction cups work? What are some applications for suction cups? And, how does one rate the performance of a suction cup? Let’s answer these questions.


Due to the fog of history, it is not possible to know exactly who first used a man-made suction cup. Certain animals, such as the Octopus and Squid, have suction cups on their limbs, and it is likely that ancient people noticed this fact and used these creatures as inspiration for creating artificial suction cups.

In any case, some of the first recorded human use of suction cups occurred in ancient Greece. The Greeks from this time period believed that many ailments could be cured by the practice of bloodletting, and to this end, suction cups made from gourds that had been split in half were used for this purpose.

Later on in history, the Chinese developed the well known medical discipline known as Cupping. This involved heating cup-like containers to suck the air out of them and stick them onto the body, with the intention of drawing out toxins.

In more recent times, primitive versions of the modern suction cup received patents in the 1800’s. These early suction cups were used mainly to hold and handle photographic plates. Ever since then, the materials and designs used to create suction cups have become many and varied, and this is due to increased understanding about the physics behind suction cups.


Suction cups take advantage of certain principles of physics to do their job. Everything on the planet is either surrounded by water or by air. Water and air both apply constant pressure on the objects that they surround. When the arched circle of a suction cup is put on a smooth surface and pressed down on, the air or liquid that is under the cup is expelled around the edges. This leaves a small area under the cup that is in a partial vacuum. This means that the air pressure under the cup is much lower than the air pressure outside the cup. This greater outer pressure pushes the cup against whatever surface it is attached to, holding it firmly in place.

If the surface that the suction cup is attached to is clean and smooth, and the edges of the suction cup are relatively airtight, the suction cup can not only hold a remarkable amount of weight, it can stay fixed in place for very long periods of time. This capability makes suction cups uniquely useful for many types of applications.


Suction cups are so simple to use that they have found applications in almost any situation where one needs to attach a device to a smooth surface. They are unique as fasteners because they do not require any kind of drilling or adhesives to fasten to surfaces.

They are widely used to handle and maneuver glass panels for use in buildings and automobiles, and well as finding use in many industrial applications. They are used to hang or hold objects onto floors, walls refrigerators, and even in some cases roofs. Due to the fact that many bathrooms are fitted with porcelain or tile, they have been put into service to secure things like non-slip bathtub mats, towel hooks, dryers, and much more. Only the imagination of the user limits the possible uses these versatile devices can be applied to.


Suction cups come in many sizes and designs, and are made to perform different jobs on different surfaces. Some are made to operate in environments that may be hotter, colder, or wetter than normal.

With parameters of this variety, it is vital to select the proper suction cup for the situation, and to be able to rate its performance to ensure proper operation.

Two measures that are commonly used to test the strength and durability of the suction cup are the weight test and the time test. The weight test involves attaching the suction cup to a smooth, non-porous surface and attaching an object to it that weighs a measurable proportion of a kilogram. This weight can be from a fraction of a kilogram up to five kilograms. The suction cup is observed to find out how well the seal is holding, and how easily it is able to hold the given weight. This will give the user an idea of the working load that the suction cup can support under normal conditions.

Another measure of cup strength is the time test. An object of similar weight of up to five kilograms is attached to the suction cup, and the cup is observed to find out how long of a time period the weight can be supported with no loss of suction or separation from the surface. This test should give the user a good idea of the amount of weight that the suction cup can support for a given amount of time with no loss of performance.

Testing the suction cup in this way will ensure that it is of the proper size for the intended purpose, and that is performs its given tasks properly and safely.