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How Vacuum Glass holders help professionals

When a load requires lifting or handling with a vacuum, a vacuum glass holder is usually involved as the interface between the load and the actuator. There are different kinds of vacuum glass holders, and they all come in various forms and designs- each with its specific purpose. It is essential to patronize a reliable manufacturer like GRABO to get the perfect vacuum glass holder that meets your exact needs. 

A suction cup sticks to the exterior of an object to be lifted to allow the pressure under the cup to be lowered. The higher atmospheric pressure outside the cup pushes it down, holding it to the surface to be handled. The lower internal pressure is achieved by connecting the cup to a vacuum system, which evacuates moist air from under the cup. When designing a vacuum system that will lift or hold with suction cups, begin the project at the initial point of contact, and work back to the source of the vacuum flow, which determines the force developed. By adequately sizing all the components, the best mix of capacity and efficiency can be attained. Before choosing a vacuum glass holder, consider the surface, texture and temperature, porosity, load weight and size, and lifting direction. Here are a few factors to take into consideration before finalizing your choice.

Surface and texture

Before finalizing your purchase of a GRABO vacuum glass holder, make sure to consider the kind of surface the weight you will be lifting has. Questions to help make a good choice ranges from whether the surface is curved or flat to what its dimension are. These will help you make an informed choice. The vacuum glass holder is designed uniquely and with each one designed to suit a particular kind of surface. 

Another factor to consider is the texture; at first glance, the surface may seem very flat, but on a close look, you may find out that the surface texture is grainy and, if not careful, can lead to leakages or damages. Some weight might require a little extra care or sensitivity while being handled. Also, some weight can retain imprint after being lifted, items like glass or styrene plastic with a high polished surface can retain an imprint, and items that might be painted or coated might also require extra attention. It is essential to factor in the surface before you make a final decision. 


The next factor to consider is the porosity of the weight to be lifted. It would be best to consider whether the item is a nonporous item like glass or a tangible item like paper. The porosity will also help inform your choice of the GRABO vacuum glass holder to buy. Porosity is defined as the sum of the outside atmosphere that passes through an object under a vacuum. Solid material with no pores or openings will not allow the outside atmosphere in. Paper, for example, is full of minute pores and leaks a significant amount of air into any application. Temperature extremes at the contact surface also can affect cup performance. Might the workpiece be coming out of an oven — or a refrigerator? 

Weight and size

It is essential to know the weight and dimension of the weight to be lifted. Weight and size will also help inform the choice of GRABO vacuum glass holder you will need. Workpiece size also determines the placement of the cups. Suction cups should always be positioned relative to the center of the object of gravity.  Proper positioning allows for proper balance on the lifting actuator.

Cup choice

When the weight and dimensions of the objects are known, the next rational choice is the kind and size of the cup. A specific cup design is most suitable for the surface and texture of the item to be lifted. It is advisable to use as large a cup as possible. The system can work at a lower level of vacuum force. There are dual advantages to this: Both porosity and leakage have the primary influence on the success of a vacuum application. Items such as corrugated boxes are not solid in construction; they have pores that allow the ambient atmosphere to leak into the system. The more significant the leakage, the more flow is required to achieve a specific vacuum level and maintain that level. A larger pump with more flow is necessary to compensate for porosity. Other leaks should be dealt with by eliminating the source.


At GRABO, we prioritize quality, and every vacuum glass holder is made from quality materials. Our team is constantly rolling out new inventions to suit your everyday needs and meet the latest technological invention. It is essential to patronize a tested and trusted manufacturer to ensure that you get a good run for your money. A good manufacturer will put you through everything you need to know about your vacuum glass holder, ranging from the perfect choice to installation and maintenance. 

How Vacuum Glass holders help professionals
How Vacuum Glass holders help professionals