Metal chip briquetters get a lot of attention, and for good reason. Compressing loose turnings into dense, dry briquettes increases the value of metal scrap, reduces hauling costs, and recovers cutting fluid that would otherwise be lost. Any shop generating significant volumes of aluminum, steel, copper, brass, or cast iron chips should be evaluating briquetting as part of its scrap program.
But here is the problem with how most facilities approach this decision: they buy a briquetter and call it a chip-processing strategy.
A briquetter is a piece of equipment. A chip processing strategy is a system. Those two things are not the same, and the gap between them is where most of the ROI gets left on the floor.
“We get $0.17 per pound more for our briquetted material over loose chips.” – Jack Rovan, Martin-Baker Plant Manufacturing Manager
What a Briquetter Actually DoesA hydraulic briquetter compresses chips, turnings, and swarf under high pressure, squeezing out residual cutting fluid and producing a compact, uniform puck or block. The benefits are real:
These are meaningful outcomes. A well-matched briquetter running at the right throughput for your volume pays for itself, often in 12 to 18 months.
But a briquetter only works on what you feed it. And feeding it correctly, at the right volume, with the right chip condition, with the recovered fluid going somewhere useful, requires a system built around it.
Briquetters are compression machines. They work best with chips and turnings that are already reduced to a manageable size. Long, stringy turnings, large clumps of tangled swarf, and oversize scrap bundles will jam a briquetter, reduce throughput, and drive up maintenance costs. Before a briquetter can do its job, the material often needs to be shredded, crushed, or run through a wringer to break up bundles and remove excess fluid.
A system designed for briquetting starts upstream, not at the press. Crushers and shredders prepare the material. Conveyors deliver it at the right rate. The briquetter closes out the process.
Briquetting presses push fluid out of chips. In a single-machine scenario, that fluid drains into a collection tank below the press. From there, it is typically hauled away as waste, dumped, or manually transferred into a drum for disposal.
That is not fluid recovery. That is fluid collection with an extra step.
True fluid recovery connects the briquetter discharge to a coolant recycling system that cleans, reconditions, and returns the fluid to the machine tool for reuse. PRAB Guardian Coolant Recycling Systems, for example, remove tramp oils, fines, and biological contamination to restore coolant to a usable concentration. The result is a 70% or greater reduction in annual purchases of new coolant. A briquetter alone cannot produce that outcome. The coolant system is what closes the loop.
In many shops, the path from machine tool chip conveyor to briquetter involves at least one manual step: a cart pickup, a forklift move, a chip bin dump. Every manual touch is a labor cost, a safety exposure, and a variable in throughput. In high-volume CNC environments running two or three shifts, those manual gaps add up to real money.
An integrated chip-processing system automates the process from chip production to discharge. Conveyors carry material from the machine tool. Shredders or crushers handle volume reduction. Wringers or centrifuges pre-condition the chip before the briquetter. Load-out systems manage the finished product. No manual handling required at any stage.
The Integrated Approach: How PRAB Builds Chip Processing SystemsPRAB engineers chip and fluid management systems as connected cells, not collections of standalone equipment. A typical high-volume CNC installation might include:
| Stage | Equipment | Function | Outcome |
| 1. Collection | Steel Belt or Screw Conveyor | Moves chips from machine tool sump | No manual handling, continuous flow |
| 2. Size Reduction | Crusher or Shredder | Breaks down stringy turnings and bundles | Consistent chip size for downstream equipment |
| 3. Fluid Removal | Wringer or Centrifuge | Removes bulk fluid before compression | Higher briquette density, faster press cycle |
| 4. Briquetting | PRAB DualPak Briquetter | Dual-cylinder compression to near-solid puck | Up to 99% fluid capture, 25% scrap value gain |
| 5. Fluid Recovery | Guardian Coolant System | Cleans and reconditions recovered fluid | 70%+ reduction in new coolant purchases |
| 6. Load-Out | Load-Out System | Moves finished briquettes to container or transport | Zero manual scrap handling at discharge |
The PRAB DualPak Briquetter uses two opposing hydraulic cylinders to press chips equally from both sides, producing the industry’s densest briquettes with up to 99% fluid recovery per cycle. But the DualPak is most effective as part of a designed system, not a standalone installation.
Investing in metal chip processing and coolant recovery systems without proven results can lead to overspending or undersized equipment. Our testing reduces uncertainty by showing how your specific material behaves before you buy.
| Schedule a FREE Materials Test. |
Our lab testing mirrors real plant conditions and produces measured, documented insights, including:
If you are evaluating briquetting equipment for your facility, these questions will help you determine whether a single machine or a designed system is the right investment:
PRAB can supply every stage of this system under one contract, with one engineering team and one service relationship. That integration is what separates a chip-processing strategy from a chip-processing purchase.
Briquetting machines from any reputable supplier will compress chips and recover some of the fluid. The ROI argument for briquetting is sound. But the ceiling on that ROI is set by what is connected to the briquetter on both sides: how chips arrive and where the recovered fluid goes.
High-volume CNC and machining operations that want to maximize scrap revenue, minimize coolant spend, and eliminate labor from the chip handling process need a designed system, not a single machine.
PRAB has been engineering those systems for more than 70 years. If you want to understand what an integrated chip-and-fluid recovery system looks like for your specific application, start with a materials analysis and process review, not a briquetter quote.
About the Author
Paul Montgomery is the Marketing Manager at PRAB, Inc., a global manufacturer of engineered metal scrap handling, coolant recycling, and industrial wastewater treatment systems. With more than 30 years of experience across manufacturing, SaaS, custom development, healthcare, and education, he specializes in data-driven marketing that translates plant-floor performance into executive-level financial results. His work centers on total cost of ownership, automation integration, and closed-loop manufacturing strategies that help industrial companies reduce waste, conserve resources, and improve long-term profitability.
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