"> Parts Washers - Degreasing

Front Loading Spray washer

Top Loading Spray washer

Our top-of-the-range parts washers have been used across a range of industries to clean parts and components. Each parts washer can be supplied as either an aqueous detergent or ATEX certified solvent solution, depending on the nature of contaminants being removed.

Our parts washers are an efficient way of stripping parts and components of unwanted surface contaminants; from paints and inks through to greases and oils. With two product ranges and various machine sizes available, we supply the machine that best suits each customer’s specific cleaning requirements. 

Parts Degreasing With Rotajet

Rotajet Systems are one of the UK’s most respected experts in the design and manufacture of degreasing equipment. We offer a complete range of degreasing machines including parts washers, ultrasonic machines as well as a full selection of ATEX certified washers.

We provide a full turn-key solution to your cleaning needs, handling every aspect of your process. Our team handles everything from design right up to machine maintenance and servicing so that you can concentrate on what you do best!

At our manufacturing base in West Yorkshire, we have built our reputation on combining chemical and mechanical engineering to create cleaning solutions that keep our customers’ workers safe, their productivity high, and their waste low.

What do our clients think?

From the outset, the experience was one where we were kept informed of each stage of the project and it was ultimately delivered precisely when we wanted. I will have no hesitation in dealing with the team again and hope to do so in the near future. I would highly recommend them for the quality of product and professionalism throughout the entire process. Top job!
Mark Semple

Machine Loading

Our parts washers are designed to reduce manual handling by offering different loading options based on the size and weight of your components. Our small top-loading spray washers such as the RJ-TL650 are designed for small components can be loaded manually directly into the wash chamber. External loading is included in our larger machines allowing the operator to load larger parts, such as engines. These machines can be loaded manually or in conjunction with standard lifting equipment such as an overhead crane.

Wash Cycles

Each of our parts washers are designed to support an automatic cycle, freeing your operators to complete other tasks. The temperature, cycle time, and flow rate are variable, allowing you to fine-tune your process and maximise its’ efficiency.

The exact process that your machine will undertake will vary depending on your requirements and this will be covered in full during the design process. Our machines can be offered as a single-stage, two-stage, or, particularly in the case of the food industry; a three-stage wash.

Once the cycle has been completed, the steam is extracted, interlocks are disengaged and the component can be safely be removed.

Chemical Dosing

With nearly 1000 machines in commission worldwide across a huge variety of industries, we have extensive experience in the selection, supply, and dosing of washing chemicals. We use this knowledge to inform all of our projects and offer the level of support you need.

If you have a specific cleaning chemical in mind, we can manufacture our machines to suit your current procedures or our team can advise and/or supply you on the best chemicals to use.

We have been manufacturing parts washers for over 30 years. In this time, we have worked with many industries; each with their own unique issues and contamination specificities. To cater to these complexities, our standard parts washers can be adapted to handle many types of contamination.

Food Stuffs

Manual parts washing can be a mammoth task for the food and beverage industry. Not only is this a time consuming option, but also extremely uneconomic due to the amounts of water and cleaning detergent that would be required; not to mention the costs of labour.

For food production companies producing high quantities of goods; a parts washing machine can make for a quick return on investment and be the more financially viable option for washing. On top of this, the food industry can be subject to more complexities than other industries when it comes to health and safety. 

Washing methods used must be sufficient for removing any potentially hazardous contaminants: a risk that can be considerably reduced through the use of an optimised and automated washing machine.

Examples of contamination


Vegetable Oil, Fuels, Grape Seed Oil, Sesame Oil, Avocado Oil

Food Stuffs

Milk, Honey, Liquid Yeast, Essences, and flavours


Paints, Inks, Flocculant, Organic solvents

Solvent based Inks and Paints

In our range we have spray washers that have been specifically designed to wash solvent based paints and inks. It is our duty to ensure that the machine has been designed according to ATEX standards to protect against the possibility of ignition.

An ATEX spray washer is typically fully pneumatically driven, removing the possibility of electrical spark. If you are looking to wash containers contaminated with solvent based inks or paints, why not have a look at our specially designed container washers.

No matter the nature of your cleaning application, Rotajet Systems have the knowledge and experience to ensure that your system will suit your needs. Allowing you to reallocate labour to where it is needed whilst creating a reliable and repeatable cleaning quality.

The remanufacturing process can be broken down into the following 6 key stages:


The product, or ‘core’, is broken down into its’ constituent components.


Each individual part is cleaned; either manually or using a machine such as a spray washer. Much of the cost involved with remanufacturing can be attributed to the manual option of this stage as it can be both a laborious and time consuming task; not to mention resources such
as water and the risks involved with cleaning hazardous parts by hand.


There is no standard measuring stick by which to assess the cleaning quality of parts. Much of this comes down to visual inspection. This can be another costly stage as cleaning efforts may vary between manufacturers; incurring an extra cost for the lower standard of clean
This is another stage which can be made more efficient through the use of a part-washing machine, such as the previously
mentioned parts cleaning and degreasing spray washer.

Parts Replacement

Parts which do not achieve the expected standard are then either scrapped or sent through the alternative process of component remanufacture. Parts which are scrapped or
cannot be remanufactured are then replaced with new or remanufactured parts.
Using the cleaned and/or replaced components, the ‘core’ is then put back together according to the original equipment manufacturers specification (OEM).
Using the cleaned and/or replaced components, the ‘core’ is then put back togetheaccording to the original equipment manufacturers specification (OEM).


To complete the manufacturing process, the machine must then be tested to ensure it satisfies all of the necessary criteria, much like in the original manufacturing stages of the new product. It is important for this stage to run smoothly in order to place the item on the market for resale, as not doing so can become another costly process.

It is the highly laborious and time consuming nature of the stages mentioned above that can contribute to the high costs of remanufacturing. In particular, it has been found that the cleaning stage, assuming up to 20% of the overall costs alone, is accountable for the largest cost of all; especially in automotive remanufacturing. 

Not only can this be attributed to the costs of labour, but the resources used in line with this process: manually cleaning can mean the use of more water, chemicals and energy that could otherwise be streamlined and optimised through an automatic cleaning machine. These findings have also been reflected in research, which shows that, among other factors, such as; cleaning standards and requirements within the relative sector, environmental regulations, etc, the more complex the washing process is within a company; the higher the incurred costs are for this stage.

Summery of using a Parts Washer during remanufacture

Although it can be a time consuming task, remanufacturing has actually been found to have a great deal of advantages when compared to manufacturing new products. For example; remanufactured items can take up to 80% less energy to produce and can additionally save up to 80% in cost due to the cheaper nature of the used materials. Aside from being financially sound, remanufacturing can also have a comparably more positive impact on the environment; in some cases producing up to 90% less greenhouse gases than original manufacturing.

Overall, while there can be constraints and complications involved with remanufacturing parts; the operation can evidently turn a considerable profit. On top of this, costs can be controlled and optimised through the adoption of efficient processes, such as the use of cleaning machines, which can make for a financially sound business model.

why work with rotajet systems limited

Rotajet are the experts in the design and manufacture of cleaning and degreasing machinery. We’ve worked with some of the worlds biggest brands to create intuitive spray washing solutions for any application.

Spray Washing Systems

Spray washers are a simple and effective way of removing unwanted contamination from the surface of parts, containers or equipment.

Rotajet Systems Ltd
Unit 14
Flanshaw Way
West Yorkshire


Request Quote

Degreasing Solutions

We’ve been making degreasing machines for over 30 years. In that time we have produced over 1000 different machines and developed a whole range of standard offerings to choose from.

Rotajet Systems Ltd
Unit 14
Flanshaw Way
West Yorkshire


Get in Touch