For most machining plants, foundries and metal recyclers that produce a stable volume of chips, briquetting offers clear advantages in storage, transportation, fluid recovery, workplace organisation and downstream recycling. However, the final decision should be based on material type, chip volume, moisture content, local scrap prices and the requirements of the receiving foundry or recycler.

What Are Loose Metal Chips?

Loose metal chips—also called swarf, turnings, shavings, borings or millings—are generated when cutting tools remove material from a metal workpiece.

Common examples include:Aluminium chips from CNC machining centres.Steel turnings from lathes.Cast iron chips from automotive-component production.Copper and brass chips from valve and fitting manufacturing.Stainless steel swarf from precision machining

Metal powder and grinding residue from finishing processes

These materials remain recyclable, but their loose and irregular form creates operational difficulties. Long, tangled turnings can bridge inside containers or feeding systems, while small chips and powder may scatter around the workshop. Oily chips can also drip during handling and contaminate floors, containers or transportation vehicles.

Because loose chips contain a large amount of empty space, a storage bin may appear full even though the actual metal weight is relatively low.

What Are Metal Briquettes?

Metal briquettes are dense, regularly shaped blocks made by compressing loose metal chips under high hydraulic pressure. Depending on the machine and material, the finished briquettes may be cylindrical or rectangular.

A typical metal chip briquetting process includes:Collecting the chips from CNC machines or production lines.Separating different metal grades to prevent contamination.Shredding long or tangled turnings when necessary.Removing excessive coolant through draining, centrifuging or pre-processing.Feeding the material into a hydraulic briquetting press.Compressing the chips into dense briquettes.Collecting the discharged cutting fluid for treatment or possible reuse.Storing or transporting the briquettes for remelting.

A metal chip briquetting machine can process materials such as aluminium, steel, iron, brass and copper chips. The correct equipment configuration depends on chip shape, bulk density, oil content and required production capacity.

1. Storage Space

Loose chips have a low and unpredictable bulk density. Curled aluminium chips and long steel turnings can occupy particularly large amounts of space because of the air gaps between individual pieces.

This means manufacturers may need:More collection bins.More workshop floor space.More frequent internal material movement.Larger outdoor scrap-storage areas.More labour to manage overflowing containers

Briquetting removes much of the empty space between the chips. The resulting blocks are compact and regularly shaped, making them easier to arrange in containers or designated storage areas.

The exact volume reduction depends on the material, chip geometry and pressing force. Therefore, manufacturers should test their own chips instead of relying only on a general compression-ratio claim.

2. Transportation Costs

Transporting loose metal chips often means transporting a large volume of air. A truck or container may reach its volume limit before reaching its permitted weight.

Briquettes allow a higher amount of metal to be placed in the same transport space. This can reduce:The frequency of scrap collection.Forklift and loading operations.Labour required for container changesFuel consumption per tonne of transported metal

Overall logistics costs

The actual savings depend on the distance to the recycler, local freight rates, container capacity and the density achieved after briquetting.

For facilities that send chips over long distances, transportation savings can become an important part of the return-on-investment calculation.

3. Cutting Oil and Coolant Recovery

Machining chips commonly retain cutting oil, coolant or lubricant. When loose chips are stored without treatment, this fluid may remain trapped inside the material or leak from storage containers.

A hydraulic briquetting press applies high pressure to the chips, helping separate a portion of the retained liquid. The recovered fluid may then be collected for filtration, treatment or reuse, subject to its condition and the plant’s production requirements.

This offers several potential benefits:Lower consumption of cutting fluid.Reduced dripping during storage and transportation.Cleaner scrap material.Improved workshop housekeeping.Lower risk of mixing fluids with other waste streams

For chips with a particularly high liquid content, a complete system may include a crusher, conveyor, centrifuge and briquetting press. Dershan provides solutions such as metal-chip shredding and compacting systems as well as centrifugal drying and briquetting configurations for different processing requirements.

Briquetting is not a substitute for proper hazardous-fluid management. Operators must still follow applicable environmental, fire-safety and waste-handling regulations.

4. Scrap Value and Material Consistency

Scrap buyers and foundries normally evaluate metal chips according to alloy grade, cleanliness, moisture, contamination and local market conditions. Loose, oily or mixed chips may receive a lower price or require additional processing.

Sorted briquettes can offer a more consistent recycling material because they are:Compact.Easier to weigh.Easier to sample.Less likely to scatter.More convenient to handle.Potentially lower in free liquid

Briquetting does not automatically guarantee a higher price. Before purchasing a machine, the operator should ask local scrap buyers or foundries whether they accept briquettes and how they calculate the purchase price.

The most reliable evaluation compares the current selling price of loose chips with the expected price and processing cost of briquettes.

5. Melting Performance

Loose aluminium or steel chips have a high surface-area-to-weight ratio. When exposed to air, moisture and heat, this can increase the potential for oxidation. Lightweight chips may also scatter, float on molten metal or be drawn into extraction systems during furnace charging.

Dense briquettes generally provide:More controlled furnace feeding.Reduced scattering during handling.More predictable batch weights.Better use of furnace space.Lower exposure to air than loose chips

However, melting performance depends on the metal, furnace type, briquette density, contamination level and operating method. A foundry should conduct controlled tests before changing its standard furnace charge.

Parameter or Description

6. Workplace Organisation and Safety

Loose chips can create sharp edges, slippery floors and obstructed work areas. Oily material may also increase housekeeping demands.

Briquetting creates a more structured scrap-handling process. Chips can move from the machine tool to collection, pre-treatment, compression and storage with less manual handling.

A properly designed system can include:Chip conveyors.Lifting and tipping devices.Hoppers.Shredders for long turnings.Centrifugal dryers.Automatic feeders.Hydraulic briquetting presses.Fluid-collection tanks.Briquette discharge conveyors

Automation can reduce direct contact with sharp or oily chips, but every installation still requires safety guards, emergency-stop controls, operator training and documented maintenance procedures.

Customer Case: Aluminium Chip Briquetting Project in the Philippines

Dershan has supplied an aluminium chip briquetting solution for a customer in the Philippines. The project involved processing loose aluminium machining chips into compact briquettes.

The customer’s exact production figures and commercial information are not publicly disclosed. The case nevertheless represents a common challenge faced by aluminium-machining businesses: loose chips occupy substantial storage space, are inconvenient to transport and may retain valuable cutting fluid.

Project requirements

The solution needed to address several practical requirements:Process lightweight aluminium machining chips.Produce stable briquettes for storage and transportation.Reduce manual handling of loose material.Support continuous and reliable production.Match the customer’s local electrical requirements.Provide technical assistance for installation and operation

Dershan’s solution approach

Before recommending a configuration, chip characteristics must be evaluated. Important information includes chip dimensions, whether the material is short or tangled, hourly volume, alloy type and residual-fluid content.

For short aluminium chips, the material can normally be fed into a suitable hydraulic briquetting press. Long and tangled shavings may require shredding before compression. Chips containing considerable coolant may also benefit from centrifugal drying or another liquid-separation process.

The selected machine can then be configured according to the customer’s capacity, briquette size, automation and voltage requirements.

Project value

By converting the aluminium chips into compact briquettes, the customer can establish a more organised recycling process. The briquettes are easier to collect, weigh, store and transport than untreated loose chips. Compression can also help separate retained cutting fluid and prepare the material for sale or remelting.

The precise financial return depends on actual throughput, operating hours, electricity and labour costs, transportation distance, recovered-fluid value and local aluminium-scrap prices. These factors should be measured during project planning.

This case shows why material testing and application-specific machine selection are more important than choosing equipment based only on nominal pressing force.

When Should You Keep Metal Chips Loose?

Briquetting is not necessary for every business. Keeping chips loose may remain practical when:The quantity of chips is very small.Scrap is collected only occasionally.The recycling company is located nearby.Transportation costs are insignificant.The buyer does not accept briquettes.Different alloys cannot be separated effectively.The expected savings cannot justify the equipment investment.A small workshop should first calculate its monthly chip volume and current handling costs. If the operation produces only a few containers each year, outsourcing scrap processing may be more economical.

When Is Briquetting the Better Choice?

A metal chip briquetting machine is generally worth considering when:CNC machines generate chips continuously.Scrap bins fill quickly.Transportation is frequent or expensive.Chips contain recoverable oil or coolant.The facility needs cleaner material handling.Loose chips are difficult to charge into a furnace.The business wants to automate scrap processing.The recycler or foundry prefers compact material

It is especially useful for automotive-component factories, machining centres, foundries, metal recyclers, aluminium processors and manufacturers producing large quantities of metal swarf.

Why Choose Dershan?

Dershan manufactures hydraulic metal-processing equipment, including metal chip briquetting presses, metal balers, hydraulic shears, shredders and integrated recycling lines.

More than 15 years of hydraulic-equipment experience

The company has more than 15 years of experience manufacturing hydraulic equipment. This experience supports equipment selection for different materials and operating conditions.

Solutions for different production capacities

Dershan offers compact presses for smaller workshops as well as vertical, horizontal, single-output, double-output and integrated briquetting systems for higher-volume applications.

For example:Small briquetting presses for lower-volume chip generation.Single-output briquetting presses for continuous small-to-medium production.Vertical hydraulic presses for a compact equipment footprint.Horizontal systems for higher throughput.Direct-to-briquette systems for large-scale processing.Crushing, centrifugal drying and centralized feeding solutions.Final capacity should always be confirmed through material evaluation and technical selection.

Customized machine configuration

The equipment can be configured according to:Metal type and chip geometry.Required throughput.Briquette dimensions.Feeding method.Automation level.Motor and hydraulic-component preferences.Voltage and frequency.Cooling requirements

Quality-control and certification support

Dershan states that its equipment and manufacturing system are supported by certifications including CE, ISO, TÜV and SGS. The exact certificate applicable to a specific model and destination should be confirmed during quotation and order review.

Pre-shipment testing

Machine testing before shipment helps confirm operation, pressing cycles and basic equipment functions. Customers can request relevant test videos and, where appropriate, arrange material testing before final machine selection.

Installation and technical service

Dershan provides site-planning assistance, installation and commissioning guidance, operator training and after-sales support. Remote technical assistance can also help customers identify operational issues without waiting for an on-site visit.

Replaceable wear components and spare-parts support

Wear-resistant and replaceable components can simplify long-term maintenance. The availability of technical guidance, spare parts and service records is particularly important for equipment expected to operate continuously.

Final Verdict: Are Briquettes Better Than Loose Metal Chips?

For occasional, low-volume scrap generation, keeping metal chips loose may be the simplest and least expensive option.

For businesses producing metal chips continuously, briquetting is usually the more efficient recycling method. It can reduce storage requirements, improve transportation efficiency, recover part of the retained cutting fluid, create a cleaner working environment and provide more manageable material for recycling or remelting.

The best solution is not simply the machine with the highest pressure or capacity. It is a system selected according to the customer’s actual material, production volume, fluid content, factory conditions and recycling objectives.

Dershan can evaluate your metal-chip samples, production capacity and required briquette size to recommend a suitable machine or complete processing line.

Contact Dershan to discuss your metal chip recycling project and request a customized solution.

Frequently Asked Questions

Can aluminium and steel chips be briquetted in the same machine?

A machine may be technically capable of processing different metals, but aluminium and steel should be kept separate to protect scrap purity and value. Cleaning may also be required when changing materials.

Do long metal turnings need to be shredded?

Usually, yes. Long or tangled turnings can bridge inside a hopper and cause inconsistent feeding. A shredder converts them into shorter, more uniform pieces before briquetting.

Can a briquetting machine recover cutting fluid?

Hydraulic compression can separate part of the retained oil or coolant. Recovery efficiency depends on chip type, initial liquid content, pressing conditions and whether centrifugal drying is used.

Are metal briquettes worth more than loose chips?

They may be, depending on cleanliness, alloy separation, fluid content and the buyer’s purchasing policy. Customers should confirm local prices before calculating the investment return.

How can I determine the correct machine capacity?

Record the weight of chips produced per hour, shift or month. Also provide chip photographs, alloy information, dimensions and fluid content. The supplier can then select a machine with an appropriate processing capacity.

Is a briquetting press suitable for metal powder?

Some machines can process metal powder and grinding residue, but the material must be evaluated for flow characteristics, composition, moisture and safety risks. Fine reactive powders require special handling and must not be processed without a professional safety assessment.