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Invitation to Quote

Decanting Machine Prototype



Paint360 convert unwanted paint (post-consumer) back into new products for the trade. Trading for ten years we have become the largest paint recycler in Europe and are low looking to increase the volumes of material received to process through mechanical development.

We are looking to design and build a decanting machine to extract water-based paint (only) from original paint pots once the lid has been removed. We have obtained support for this prototype through Innovate UK and require a quote to cover the stages and following points below.

Our aim is to develop the equipment over the following stages:


  1. Design the equipment using CAD to better understand the optimal shape and height for health and safety.

  2. To build a test rig on premises and take paint pots to run trial to achieve the perfect vibration levels and synchronisation of the vibrators.

  3. Understand if we require a lid – ideally, we want to set the vibration levels, so we do not need a lid which improve throughputs.

  4. Build the prototype machine and test run at Paint360 facilities.

  5. Data crunch the throughputs to identify any required improvements.



  • Design and manufacture of a system to remove residual waste emulsion from industry standard 2.5L, 5L and 10L paint pots.

  • Manually loaded system to handle either 10 x 10L pots or 20 x 2.5 or 5L paint pots.

  • Contents to discharge in 5 to 10 seconds with minimal residue.

  • Paint pots to remain vertical and not topple.

  • Manual removal of paint pots from machine.

  • Recovered emulsion be to discharge via a 300mm via outlet into a removable process collection bin (supplied by others) directly beneath the unit which will be approximately 1400mm high.

  • It is anticipated that the machine supporting structure will require a suitable platform on which the operator can stand and load and unload the machine. All machinery guarding as appropriate.

  • All product contact parts in 304 stainless steel fully welded and designed for ease of cleaning down.

  • Site electrical supply 400V 3ph 50Hz.


Deliverable Timescale

19th February competed by 29th March 2024


Indicative Budget

£13,000 to £20,000

Evaluation Criteria

Quotations will be assessed and scored on the following criteria:


  • Quality/Technical Merit (50%)

Do the services offered fit the scope of the project?

Does the supplier have the required knowledge and experience to deliver the project?


  • Delivery Timescale (25%)

Can the supplier meet the timescales/deadline?


  • Cost/Value for Money (25%)

Is the price good value for money? This is not necessarily the cheapest option.


Scoring Methodology


4 Excellent

Proposal meets and, in some places, exceeds the required standard

3 Good

Proposal meets required standard

2 Acceptable

Proposal meets the required standard in most respects, but is lacking or inconsistent in others

1 Poor

Proposal falls short of expected standard

0 Unacceptable

Completely or significantly fails to meet required standard or does not provide the relevant answer

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