UK ROTATIONAL & CONTRACT MOULDING SPECIALISTS
Precision Moulded.
Built to Last.
From concept to delivery, Crompton Mouldings engineers world-class rotationally moulded plastic products for the UK’s most demanding industries.
WHAT WE DO
Rotational Moulding Services
From the first sketch to the final delivery, we manage every stage of the rotational moulding process in-house.
Product Design & Development
Our engineers work with you from concept to specification, ensuring your product is designed for optimal performance and manufacturability.
Toolmaking & Mould Manufacture
We design and build our own precision tooling in-house, giving us full control over quality, lead times, and cost.
Prototype Mouldings
Rapid prototyping services allow you to test and refine your design before committing to full production runs.
Volume Production
High-capacity rotational moulding machines enable us to fulfil large orders with consistent quality and on-time delivery of hollow, durable products and plastic components.
Product Assembly & Finishing
Inserts, fitting, welding, PU foam filling fabrication and quality control / assessment.
Storage & Distribution
Flexible warehousing and logistics services ensure your products are stored safely and delivered to your customers on time.
WHAT WE USE
Materials Built for Demanding Applications
Flexible, durable and widely used for rotational moulded products requiring impact resistance and long-term outdoor performance.
MDPE
A versatile polyethylene material offering excellent toughness, stiffness and environmental resistance.
HDPE
High-density polyethylene suited to heavy-duty industrial applications where strength and chemical resistance are essential.
Polypropylene
Lightweight and durable with excellent fatigue and heat resistance for specialist applications.
Nylon & Engineering Polymers
Used where higher mechanical performance, wear resistance or temperature resistance is required.
Fire Retardant & Specialist Materials
Materials formulated for flame retardancy, UV stability, anti-static performance and demanding operating environments.
We can advise on the most suitable material for your product based on impact resistance, UV exposure, flame retardancy, chemical resistance, operatingtemperature and expected service life.
Why Crompton Mouldings
Crompton Mouldings has been manufacturing rotationally moulded plastic products in West Yorkshire, Elland for generations, supplying defence, infrastructure, healthcare, construction, transport and industrial sectors across the UK.
From concept development and tooling through to production and finishing, we provide dependable UK manufacturing backed by practical engineering experience, robust supply chains and consistent product quality.
Our quality management systems and industry accreditations, including ISO 9001:2015, JOSCAR, Cyber Essentials Plus, BBA and Make UK Defence, reflect our commitment to reliable manufacturing for demanding industries where performance, traceability and long-term supply matter.
Over the years, Crompton Mouldings has built long-term partnerships by focusing on practical engineering, dependable service and products designed to perform in real-world conditions. Combined with specialist material expertise across polyethylene and engineering-grade polymers, we continue to support projects where durability, compliance and manufacturing confidence are critical.
INDUSTRIES WE SERVE
Trusted Across 9+ Sectors
Defence & Aerospace
Healthcare & Medical
Marine & Offshore
Offshore operations, ports, harbors, navigation systems and maritime industries.
Construction & Site Equipment
Agricultural & Farming
Automotive & Transport
Civil Engineering & Infrastructure
Outdoor Products & Street Furniture
Water Management & drainage
Why Rotational Moulding?
Rotational moulding is a highly versatile plastic manufacturing process used to produce durable, seamless hollow products withexcellent strength and long service life.
Seamless Construction
Ideal for durable hollow products without weak joints or welded sections.
Excellent Durability
Rotationally moulded products offer high impact resistance and long-term outdoor performance.
Large & Complex Shapes
Suitable for large mouldings, complex geometries and custom plastic products.
Cost-Effective Tooling
Lower tooling costs compared to injection moulding for medium-volume production.
Material Flexibility
Compatible with polyethylene, polypropylene, nylon and specialist engineering-grade polymers.
Consistent Wall Thickness
Uniform material distribution helps deliver reliable structural performance.
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