Briquetting FAQs | United States | RUF Briquetting Systems

Briquetting FAQs

Frequently Asked Questions about Briquetting

What are the business benefits of converting production waste materials into briquettes?

Briquetting has several benefits that can impact the bottom line:

  • Metal Briquettes have more value than loose chips
  • Reclaimed cutting fluid, especially oil, creates substantial savings
  • It can provide a superior means of managing production waste streams
  • The process eliminates the cost of waste transportation
  • Businesses can take advantage of an additional revenue stream
  • Quick payback: RUF briquetting machines typically pay for themselves in 18 months or less.

What are the operational benefits of briquetting?

  • In many cases, briquettes can be reused as a production fuel source.
  • The impacts on the overall operation are minimal; RUF briquetting machines have a compact design.
  • Briquetting makes for a cleaner facility.

Are there any other benefits of this process?

  • It’s a sustainable practice that generates good public relations.

What equipment is used to make briquettes?

A briquette machine, aka briquetting press, converts waste byproducts into briquettes with a consistent size.

How are briquettes made?

  • First, a screw conveyor transports the material into a pre-charging chamber.
  • A pre-charger presses the material into the main pressing chamber.
  • The main pressing ram compresses the material into the mold and forms the briquette into its final shape and density
  • On a slide press machine, parallel ejectors push one briquette out of the machine at a time. On a mold press, the briquette is ejected while a second briquette is formed, boosting production capacity.

Videos with more details of the process are available.

What types of waste materials can be converted into briquettes?

To say that just about any production waste byproduct can be made into briquettes would be just a minor exaggeration. Briquettable materials include:

  • Sawdust
  • Wood chips
  • Cardboard
  • Paper
  • Currency
  • Aluminum
  • Brass
  • Cast iron
  • Steel
  • Titanium
  • Magnesium
  • Zinc
  • Copper
  • Grinding sludge
  • Cotton
  • Cellulose
  • Hay
  • Textile dust
  • Bark
  • Tobacco
  • Grass
  • Peat
  • Straw
  • Polystyrene
  • Tire wire

Is more information available about briquetting these individual categories of materials?

RUF Briquetting Systems has several product sheets that you can open and download for later access if you would like.

How can I determine whether or not a material is briquettable?

RUF Briquetting Systems uses testing equipment with compressing pressure up to 72,000 psi for testing waste materials to evaluate their suitability for briquetting. This equipment also allows us to design a custom processing system for just about any operation.

What is the retained moisture in a briquette?

Metal chip briquettes have up to 98% of the cutting fluid removed and sludge briquettes have up to 97% of cutting fluid removed.

Are any companies successfully incorporating briquetting into their operations?

As you might expect, some European companies are making briquettes out of production waste products and keeping the material out of landfills entirely.

The Timken Company, for example, recently achieved a zero-waste-to-landfill initiative at its manufacturing plants—largely by briquetting grinding sludge.

There are hundreds of examples of profitable briquette-making in the United States, too:

  • Walnut Creek Planning (WCP), a manufacturer of unique finished goods for the home, installed a RUF Wood Briquetter in its Ohio facility, creating a new revenue stream and facilitating reuse of waste material in its manufacturing process. You can view a video profiling WCP.

Increased production efficiency and additional scrap revenue were the results of installing a RUF briquetter for Ultimate Training Munitions (UTM), a producer of high-performance training ammunition and safety systems. A video of UTM’s project is available, too.

How long has RUF Briquetting Systems been in business?

RUF (pronounced “roof”) GmbH & Co. KG was founded in Zaisertshofen, Germany in 1969 and started out by manufacturing a press for bark. RUF Briquetting Systems is the company’s North American subsidiary, which was established in North Olmsted, Ohio in 2008.

How big is RUF’s business?

RUF is a multinational business and has more than 4,000 briquetting systems installed in more than 100+ countries around the world.

Where can I find objective third-party assessments of briquetting and RUF Briquetting Systems?

Our website contains several news articles about briquette making and our involvement in the industry.

I’m not completely convinced that briquetting suits my business. Is it possible to get a hands-on demonstration of the process without having a salesperson call on me?

Our site also has a schedule of the industry events we are planning to attend in the near future.

I’d like to talk with someone about converting my company’s production waste materials to briquettes. How can I make that happen?

You can fill out a contact form or call us at 888-894-5773.