Servicing AD Sites Across the UK
Extruder & Milling Spare Parts
Extruders and milling equipment are critical components within anaerobic digestion (AD) plants. At Fletch Engineering Services, we manufacture and supply precision-engineered spare parts designed specifically to withstand the demanding conditions of continuous industrial operation.
Fast response guaranteed
Built For Durability & Performance
Responsible for breaking down feedstock, improving material consistency and maximising biogas yield, extruders and milling equipment are essential in the day to day running of the operation at an AD plant.
Operating under high torque, abrasive materials and continuous load conditions, these machines are exposed to significant mechanical stress and wear. Component failure can quickly disrupt processing efficiency and reduce overall plant performance.
Our engineering approach focuses on:
Each part is inspected for dimensional accuracy and
quality before delivery, helping to ensure seamless
integration into existing equipment.
Minimising Downtime, Maximising Throughput
We understand that processing reliability directly affects plant output and revenue. Our team works efficiently to deliver high-quality replacement parts
with practical lead times, helping to reduce downtime and maintain operational continuity.
Precision. Reliability. Performance.
Our Promise
By supplying robust, precision-machined components, we support consistent feedstock processing, improved equipment reliability and long-term operational stability within your AD facility.
Whether working from technical drawings or reverse-engineering worn parts, we ensure every component is manufactured to exact tolerances. Material selection is carefully considered to suit abrasive and corrosive environments, with options for hardened steels, specialist alloys and wear-resistant finishes where required.
Precision-Engineered Components
What our clients say
Built Around Speed and Reliability
Quick Turnarounds
We focus on rapid turnaround for both manufactured components and repairs on anaerobic digestion sites. In many cases we can produce replacement parts such as digester screws in one to two weeks, compared with typical OEM lead times of twelve to fourteen weeks.
Extensive Knowledge Across Our Team
Our team has developed extensive knowledge of AD plant equipment and the challenges operators regularly face. This allows us to identify issues quickly, understand the demands placed on each component, and manufacture or repair parts with confidence.
Solutions Focused
Every plant and every piece of equipment presents slightly different challenges. Components often fail due to wear, operational conditions, or unique design characteristics. Our approach is focused on practical problem solving. We assess the component, understand the cause of the issue, and manufacture or repair the part to ensure it performs reliably once returned to service.
Complete our enquiry form and our team will be in touch
Frequently asked questions
Why do extruder and milling parts wear quickly in AD applications?
How can wear be reduced?
Do you only work with UK anaerobic digestion plants?
While many of our clients are based in the UK, we can manufacture and repair components for AD plants across the wider industry. Our goal is to support operators who need fast and reliable engineering support.