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Processing Services
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Production You Can Rely On, Batch After Batch
For more than 30 years, Exwold has been trusted to manufacture demanding crop protection formulations. We understand the complexities of high-active herbicides, insecticides, growth regulators and fungicides — and we excel at turning them into reliable, market-ready granules. Our granulation expertise enhances product stability, improves handling and application safety, and delivers dependable performance in the field.
If you need confident scale-up, a new process route, or a partner to take a problem product off your hands, our experts are ready to help you deliver without compromise.
Please contact us on +44 (0)1429 230346. For email enquiries you can contact us at enquiries@exwold.com
Granule Production
At Exwold, we offer an expert contract processing service to turn your products into granules. From early-stage formulations to established active ingredients, we have the facilities and technical expertise to convert complex chemistries into consistent, free-flowing granules that are easier to handle, safer to apply and deliver reliable performance.
We offer you a range of granule processing technologies including:
The advantages of converting formulations into granules are now widely recognised across the speciality chemical and agrochemical industries, delivering gains in technical performance, cost efficiency and environmental impact. Granulation can improve product consistency and handling, simplify logistics, and support safer, more sustainable use in the field. If you’d like tailored guidance on the most effective granulation route for your product, our team will be happy to discuss your requirements in detail. You can also download further technical information by clicking granulation technologies.
Powder Processing
At Exwold, we provide specialist contract processing services to deliver high-quality powders for demanding applications. Our controlled facilities and experienced teams ensure precise particle characteristics and consistent performance every time. We work with complex chemistries, producing powders that are safe to handle, efficient to transport and ready for market release.
We offer you a range of powder processing services:
Over many years, we’ve continually invested in our specialist equipment and processing facilities, allowing us to build a strong reputation for quality, technical rigour and a genuinely collaborative way of working. Trusted by leading multinational companies, we partner closely with customers to develop innovative, reliable solutions that keep their products performing, and their projects moving forward.
Liquid Formulation
At Exwold, we deliver expert contract processing for liquid formulations, supporting everything from early development batches to established commercial products. Our dedicated liquid handling facilities and experienced teams ensure accurate dispersion, stable suspensions and consistent viscosity control, even with challenging active ingredients.
Over many years, we’ve continually invested in our specialist equipment and processing facilities, allowing us to build a strong reputation for quality, technical rigour and a genuinely collaborative way of working. Trusted by leading multinational companies, we partner closely with customers to develop innovative, reliable solutions that keep their products performing, and their projects moving forward.
Our capabilities for liquid formulation include: processing batch sizes ranging from 1,000 to 10,000 litres; using accurate filling equipment; and decanting liquids into a range of container sizes from 1 to 1,000 litres.
Once the liquid filling process is completed, induction cap sealing and torque cap tightening are also available if required. To find out more about our Liquid Formulation please contact us on 0044 (0)1429 230346 or contact us via e-mail at enquiries@exwold.com
Size Reduction
At Exwold, we provide specialist size-reduction services to achieve precise particle characteristics for high-performance products. Our controlled processes ensure consistent particle size distribution and improved downstream behaviour. We support everything from early formulation trials to full-scale commercial production, helping you optimise stability, handling and product performance.
We offer you a range of size reduction services:
At Exwold we have been kibbling, milling and micronising solids, granules and powders for decades and have built a reputation for quality and a collaborative approach. Always looking to develop new and innovative solutions for existing and potential clients, we have helped our clients to achieve particle sizes suitable for wide ranging applications such as Plastic Additives, Water Treatment, Powder Catalysts, Crop Protection and Chemical Intermediates. Download our document on why particle size distribution really matters.
To find out more about how Exwold can help you to achieve the particle size you require, contact the Customer Service team on +44 (0)1429 230346 or by email at enquiries@exwold.com.
For help converting particle sizes please download our Conversion Table.
Our Resources Section
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Case Studies
Surface Coating Blending
A multinational company required a cost-effective 2mm granule of a waxy product used as surface coating additive .
The product had not been previously extruded. The material was supplied as a waxy solid block with a melting point below 100 ºC.
The material also required careful handling as it was corrosive and a significant aim was to reduce contact hazards.
Surface Coating Additive Milling
Exwold was approached by a leading chemical company to process a range of automotive surface coating additives.
The surface coating additive is produced as a molten solid in drums. Once cooled it forms a waxy, solid mass. The material has a low melting point <50ºC. The client required this in physical form to charge into coating with a specific particle size distribution to ensure dispersion.
Coating Processing
A powder coating manufacturer contacted us to establish whether a process could be established to recycle fines (the fine powder generated and removed during powder coating manufacture).
The company was sending around 10-25mt of fines to landfill each year and wanted to reduce the environmental and financial impact. The fines ranged in PSD but were typically 150 microns.
Downloads
Supplier Code of Conduct
Exwold is committed to doing business responsibly, ethically and sustainably at all times.
The company adheres to the highest code of conduct and expects its suppliers to do the same. Exwold will only deal with suppliers, consultants and distributors who conduct business in an ethical and responsible manner. Our supplier code of conduct ensures we work together.
Booking In Form
Our booking-in form ensures every collection and delivery to site is managed safely, efficiently, and with transparency.
By confirming arrival times and key details in advance, we can prepare the right resources, minimise delays, and maintain a secure working environment. It also provides a clear audit trail for all shipments, helping us protect product integrity and meet regulatory and safety requirements.
Reports
ESG Report 2025
Our ESG Report embodies our commitment to sustainability, ethical business practices, and transparency. Through this report, we detail how we measure and manage our environmental impact, uphold human rights and employee well-being, and enforce high standards of corporate governance. By doing so, we build trust with stakeholders and demonstrate accountability, showing that profitability and responsibility can go hand in hand.
Particle Size Distribution
Particle Size Distribution (PSD) is a key factor that determines how powders and granular materials behave during processing and final use. Even with identical chemistry, variations can affect flow, stability, reactivity, and product appearance.
This guide outlines what PSD is, why it matters, and how effective measurement and control lead to greater efficiencies and quality.
Frequently Asked
Questions
Can you perform batch processing?
Exwold specialises in batch processing. Batch sizes vary from a few hundred kilograms to tens of tonnes. We also have continuous processing available with extrusion processes.
Do you sell your own products?
No. Exwold specialises in contract manufacture and in order to avoid any conflicts of interest with our clients, we have chosen to specialise only in contract processing and do not offer our own products.
Can you carry out multi-stage processing?
Yes our expertise and flexible plants allow us to combine processing technologies, for example, we regularly combine blending with our granulation capabilities.
What is your minimum order quantity for processing?
Exwold typically works in the 10 to 1000 tonnes range for clients but processes can be evaluated and adapted on a case by case basis depending on process requirements.
Our pilot facility allows us to produce trial quantities and the High Active Herbicide facility is designed to produce in volumes of 100Kgs upwards.
Can we visit Exwold to perform an audit?
We welcome all our clients to our sites so they can perform audits. We have accreditation to ISO 9001/14001/45001 standards and are looking for continuous improvements in our quality systems, so encourage all customer feedback.
Can you process foodstuffs and pharmaceutical products?
Our expertise is in the speciality chemical and agrochemical markets and as a consequence. Exwold does not currently offer services to the food or pharmaceutical markets.
Can you purchase raw materials for clients as well as manufacture?
Typically our customers prefer to source their own materials but Exwold is willing and able to source raw materials when required.
Our purchasing department can offer expert assistance in sourcing raw materials and packing requirements.
Can you do pre-production trials?
Yes. Our technical department is fully trained to perform and support pre-production trials. We often encourage trials before production so that we can evaluate any technical challenges and arrive at an accurate costing.
The technical development centre is well equipped to enable us to test all the technologies we have at scale.
Can you process solvents?
We tend to work mostly in aqueous phase, but can evaluate opportunities with solvents which have a flash point of >60°.
What quality, environmental and health and safety systems do you operate?
Exwold is certified to the ISO 9001/14001 standards.
In 2019 Exwold gained ISO 45001.
Where are you based?
We have five manufacturing sites which all based in the North East of England near the town of Hartlepool.
This area has exceptional transport links to the rest of the UK and Europe.
Would you be prepared to buy capital equipment to meet a client’s processing needs?
At Exwold we regularly work with customers in this way and our engineering team can offer in-house expertise in plant modifications and design.
With our clients we have jointly invested over £4 million in plant and equipment.
Should we have concerns regarding contamination?
This is of pivotal importance to Exwold and it is the most asked question by our clients.
We have sophisticated clean-down procedures for every piece of processing plant and all our plants are accredited with ISO 9001/14001 status.
We operate a plant dedicated to high active herbicides and have warehousing and manufacturing separation between herbicides and insecticides.
Products are tested by a 3rd party analytical company to detect residual impurities to low ppm levels.
Is Exwold sustainable?
Our expertise is in the speciality chemical and agrochemical markets and as a consequence. Exwold does not currently offer services to the food or pharmaceutical markets.
What type of packing does Exwold provide?
Exwold offers packing as an added value to bulk manufacture. We often hold the bulk in stock providing the ultimate flexibility to pack off as required.
We can pack small bottles for high active herbicides (100-1000g).
We are used to handling multiple packing SKUs for products and we pack from 1kg to 1000kgs in a variety of packaging types, including jerricans, paper and foil bags, kegs, FIBCs and bottles.
Can you provide supply product with 2D matrix labelling?
Yes. We have been investing in this capability following the regulatory requirement to include this when supplying crop protection products to countries such as France and Turkey.
How much will you charge me?
We look to offer competitive rates and, since every processing job is bespoke, we evaluate every opportunity on a case by case basis.
We are able to provide indicative prices at early stages of discussion to ensure project viability.
I know I want a granule made but not sure of how, can you help me?
Our technical team can help to determine which technology is best using their expert granulation knowledge and by asking a few simple questions such as granule size, specific physical properties required and application. From this they will suggest the best options to fulfil your needs.
The Technical Development centre can be used to assess whether this technology produces your desired granule and can support customer trials.