Removing Chips from a Plastic CNC Router

These CNC routers needed a viable solution to remove and collect plastic chips and debris created during machine operation.

Our distributor in Poland recently emailed me about an application in need of a method to collect plastic chips from the CNC router tables shown above.  These machines are used for precision cutting, but face a problem when the cutting edge of the machine comes into contact with the chips and debris created during normal use.

The end user had considered a blow off device such as a nozzle or Air Knife, but this raised concerns with material collection.  Ideally, the customer wanted to be able to capture the chips and debris for recycling.

So, we looked into a method of removing the chips with a Line Vac, conveying the debris to a stationary drum for collection and recycling.  This type of solution has proven to be effective many times in the past, as shown in the image below. A Line Vac can be mounted at the cutting head to vacuum chips and debris as they are created by the cutting process.

This Line Vac provides vacuum to a drill head to remove debris.

Using the model 6081 Line Vac we can remove the plastic debris from the plotter as it is generated, and convey it to a drum located within the workspace.  And, to facilitate collection of the plastics for recycling, we can use our model 6850 drum cover to separate the conveyed chips from the air used to move the materials.

By providing a dynamic solution for this application, the Line Vac is able to lessen the workload of machine operators, allowing them more time to perform value added tasks rather than cleaning.  And, the solution is easy to install, requires little to no maintenance, and provides instantaneous vacuum only when needed.

If you have a similar application or would like to discuss problems facing your facilities, contact an EXAIR Application Engineer.  We’re available by phone, email, and online chat.

Lee Evans
Application Engineer

LeeEvans@EXAIR.com
@EXAIR_LE

Conveying Plastic Chips Using Only Compressed Air

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Plastic chips and pellets in need of an efficient means to convey from point A to point B

One of our distributors in Europe recently contacted me about an application to move plastic chips and pellets (shown above).  In this application the customer needed to move the material 6m vertically (upward), 10m horizontally, and then 4m vertically (downward) at the fastest rate possible using an EXAIR Line Vac.  So, we needed to determine the most suitable model number.

When determining the proper model Line Vac for pneumatic conveying applications, we investigate specifics such as:

Bulk density of the material

Shape/size of the material

Conveying distance

Conveying height

Required conveyance rate

Available compressed air supply

Using this information we can make a recommendation as to the best Line Vac for the application.  For this application, the bulk density of the material was between 10-15 pounds per cubic foot, the size was relatively small, our distances were given, and the required conveyance rate was “as much as possible”.  With a sufficient compressed air volume and pressure of 80 PSIG, we knew everything we needed to make a model number recommendation.

Due to the significant height as well as the considerable horizontal distance, the best solution for this application was a Heavy Duty Line Vac.  Given the small size of the material, several options “could” move the chips/pellets, but we needed to determine which Line Vac would move the most volume.  Our recommendation was to use the Heavy Duty 2” Line Vac, model 150200, which we estimate could move ~400 pounds per hour (or more) in this application.

Conveying materials pneumatically removes worker interaction with the movement of the product, allows for controlled ON/OFF cycling of material transfer, and eliminates fatigue related to physical handling of the material.

If these aspects could benefit your facility or application, contact an EXAIR Application Engineer.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

Choosing the Right Dry Vacuum – Chip Vac or Heavy Duty Dry Vac

A common question we get from our customers is, ‘I need a dry vac, should I use the Chip Vac or Heavy Duty Dry Vac.’  This is very good question, and we will take the time to better understand the application in order to best answer that question.

Both the EXAIR Chip Vac and Heavy Duty Dry Vac are designed to turn an ordinary 5 (Chip Vac only,) 30, 55, or 110 gallon open top drum into a powerful, industrial duty vacuum cleaner. Both are powered by compressed air, and have no moving parts to wear out or break, whereas the typical electrically operated system has motors and impellers that clog and break down quickly.  The Chip Vac and Heavy Duty Dry Vac are also quiet, at half the sound level of electric versions.

The Chip Vac is designed specifically for vacuuming chips. It creates a powerful direct flow that is ideal for metal, wood, and plastic chips.  Because it has a filter bag, in can also handle the occasional dusty material, and keep the surrounding air clean.

If the operation machines different materials, the lid can be removed from one drum and moved to another, to keep the materials separate for easy recycling.

4 R UMAX PL-II V1.4 [3]
The Chip Vac is ideal for vacuuming metal, wood or plastic chips

The Heavy Duty Dry Vac was engineered to vacuum more dry material in less time with less wear. The hardened alloy construction resists premature wear and the increased power makes difficult jobs and harsh environments more easily handled.

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The 110 Gallon  Heavy Duty Dry Vac provides maximum capacity for spill clean up

The Heavy Duty Dry Vac is ideal for abrasive materials such as steel shot, garnet, metal chips and sand, and is also useful for general purpose applications such as vacuuming floors, machines, work stations and machinery/equipment.

Like the Chip Vac, the Heavy Duty Dry Vac drum lid fits any open top drum, and can be moved from one drum to another facilitating recycling efforts.

Below shows the powerful performance of the Heavy Duty Dry Vac when considering large, heavy material and the increased performance you could expect.

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Vacuuming Rate Comparison, for Chip Vac and Heavy Duty Dry Vac

To discuss your application and for help deciding which dry vac would work best, feel free to contact EXAIR and one our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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