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Level compensators are useful for a variety of applications. They are designed to work with vacuum cups to compensate for height level differences, particularly in applications that require handling robots or other pick and place applications
 
EDCO USA offers an assortment of level compensators to meet your needs. We offer standard, heavy duty, non-rotating, internal spring, and external spring designs for a wide range of applications.  We will assist you to find the best level compensator for your application.

What is a Level Compensator?

Level compensators are devices that can offset vacuum cups to compensate for differences in feature heights on a particular workpiece surface.  Alternatively, level compensators can be used to pick parts from a magazine where the vertical position of the top part varies.  Level compensators provide shock and vibration absorption that helps prevent damage to the workpieces. They also allow for greater positioning latitude, making them ideal for robotic applications.

Vacuum cup level compensators offer uses and benefits that include:
  • The ability to have multiple suction cup heights on an end-of-arm tool
  • Consistent pressure for each pick up
  • Increased vacuum cup lifespan by minimizing suction cup compression
  • Reduced demand for exact positioning
  • Allowance of soft placement of cups on sensitive or thin objects
Depending on the type of level compensator, they may offer unique benefits or limitations. For example, heavy-duty level compensators offer added strength for loads from larger diameter vacuum cups whereas external spring level compensators are used for vertical mount applications only
 

Level Compensator Technology

The function of level compensators is often misunderstood since they do not actually compensate for different part features, levels, or heights. Workpieces must be presented and picked the same way each time because level compensators will not compensate for hitting a high spot one time and a low spot the next time unless the end of arm tooling (EOAT) is designed to have many extra and often inactive vacuum cups.
 
The stroke of the spring-biased level compensator shaft will compensate for a small range of presentation height variation of workpieces to be picked up such as a stack of workpieces in a magazine. The threaded sleeve allows a vacuum cup mounted to a fully extended level compensator to be adjusted to conform to the workpiece surface.
 
When the workpiece is lifted, all the level compensators should be fully extended. Any level compensator that is not fully extended is not allowing that vacuum cup to help carry the load even though the cup is firmly attached to the workpiece. Vacuum cups mounted to level compensators which aren’t fully extended are rendered inactive.
 

Contact EDCO USA for Level Compensators

EDCO USA supplies a variety of high-quality level compensators to meet all of your needs. Our use of hard-coat anodized aluminum reduces the weight of our level compensators by as much as 60 percent over steel and simultaneously increases wear resistance.  With decades of experience, EDCO can provide expertise and technical assistance to our customers.
 
To learn more about our level compensators, contact us today or request a quote.
 
 

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