Coolant, swarf and mist extraction in a machine sale
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Agree who will deal with coolant, swarf and associated extraction before confirming a machine's collection arrangements. “Buyer to collect” does not, by itself, explain whether the machine will be prepared for movement or who handles residues.
The answer depends on the equipment, substances, site and agreed sale terms. Get the relevant specialists involved early enough to define the work and its cost.
Identify what is present
Start with existing records and safe-access observations. Record the machine, its tanks or separate units, the known fluid identity and any service information. Identify accumulated swarf or other residues without attempting to classify an unknown material yourself.
HSE's metalworking-fluid guidance explains the health risks associated with exposure. Preparation should therefore be planned through competent people, rather than treated as a quick cosmetic clean before photographs.
Do not assume an idle machine has been emptied, or that an apparently empty tank contains no residue. State what is known and ask the contractor what further assessment is needed.
Use a responsibility matrix
This example assigns questions, not technical methods. Replace the proposed roles with the parties and responsibilities actually agreed for the sale.
| Matter | Seller provides | Specialist confirms | Buyer or mover needs to know |
|---|---|---|---|
| Fluid identity | Available product and service records | Assessment required if uncertain | Relevant preparation status |
| Fluid and residue work | Access and agreed scope | Method, competence and appropriate handling arrangements | Completion evidence and remaining limitations |
| Swarf and chips | Known material and contamination history | Suitable preparation and handling scope | Whether residues remain |
| Separate tanks or units | Inclusion list and ownership | Work needed before movement | Which units and components are collected |
| Mist extraction | System identity and examination records | Separation and future assessment needs | Included equipment and exclusions |
| Site reinstatement | Premises requirements | Agreed work and responsibility | What remains outside collection scope |
Write a named contact and deadline against each unresolved matter. “The contractor” is too vague when the fluid specialist and machinery mover are different businesses.
Put the handover between contractors in writing
One contractor may prepare the machine while another moves it. They need a shared understanding of what completion means.
Ask what evidence the first contractor will provide and what the mover requires before attending. Record any remaining fluid, residue or equipment condition that affects the next stage. Do not assume that a short note saying “cleaned” answers every transport or handling question.
Keep the machine's condition record alongside this work. The service-history guide helps prevent preparation activity from being mistaken for a mechanical repair or performance test.
The foundation and anchoring questions cover another part of the removal brief. Fluid preparation and building work should have clear boundaries even when one contractor coordinates both.
Decide what happens to the extraction
A local mist collector may be dedicated to one machine, while a fixed extraction system may serve several. Identify the actual arrangement and the proposed sale boundary.
HSE's LEV guidance addresses information and assessment of extraction systems. Retain the relevant documentation and ask the competent specialist what the proposed separation changes. A previous report for the installed system should not be presented as proof that a different arrangement will perform adequately.
The fixed-extraction sale guide explores that boundary. For a contracted parts washer, the ownership and residues guide raises a further question: the equipment itself may not be the seller's asset to include.
Describe the collection condition accurately
The sale description should state the agreed preparation responsibilities and material exclusions. Avoid promising a machine is empty, clean or ready for transport before the responsible specialist has established the relevant condition.
If costs or tasks remain unresolved, make them visible in the sale planning discussion. Solving the ambiguity before buyers rely on collection information is usually simpler than negotiating it at the loading door.
Send the equipment list, known substance information and draft responsibility matrix to UK Auction Group. The engineering and CNC hub connects the other preparation decisions.
Sources
- HSE: About metalworking fluids Checked
- HSE: LEV frequently asked questions Checked
This guide gives general information. Equipment-specific, legal, tax and safety decisions may need a qualified adviser or competent specialist. The guides do not promise sale prices, fees or results.