Serving the UK & IE plastics industry

Finnsworth - Large Volume mould toolmakers


We are a manufacturer of bespoke premium plastic products for the construction industry.  We offer comprehensive services for tool making/injection moulding, from design, prototyping, pre-production runs & evaluation, to even managing production from a high-capacity tool we have manufactured. 


We specialise in injection moulding, using a variety of high-quality machines from renowned manufacturers such as ENGEL, HAITIAN, Dr. BOY, and Arburg.

ENGEL VICTORY 120 Tie-bar-less Machine (x3): These machines are sourced from ENGEL, a leading global manufacturer of injection moulding machines. The "Tie-bar-less" design offers enhanced flexibility and efficiency in moulding processes. The ENGEL VICTORY 120 series is renowned for its precision, reliability, and energy efficiency.

HAITIAN MA1600 2S: The HAITIAN MA1600 2S is a high-performance injection moulding machine manufactured by Haitian International, a prominent Chinese manufacturer. It is designed for versatility and cost-effectiveness, making it suitable for a wide range of applications.

Dr. BOY Injection Moulding Machines: Your company utilises several models from Dr. BOY, including the 22D, 90E (x2), and 100E. Dr. BOY machines are esteemed for their compact size, precision, and reliability, making them ideal for various industries and applications.

Arburg 420S ALLROUNDER 1000-350: The Arburg 420S ALLROUNDER 1000-350 is a high-performance injection moulding machine manufactured by Arburg, a renowned German company with a long history in the industry. It incorporates advanced technology for precise moulding and efficient operation, meeting the demands of modern manufacturing.

We not only specialise in injection moulding but also offer services related to tool work and machine repair. Here's a brief summary of the equipment mentioned:

ECLIPSE GRINDING MACHINE: The Eclipse Grinding Machine is used for precision grinding operations, essential for maintaining the accuracy and quality of moulds, dies, and other tooling components used in injection moulding.

COLCHESTER STUDENT 1800 LATHE: The Colchester Student 1800 Lathe is a versatile machine used for turning and shaping cylindrical workpieces. Lathes are crucial for fabricating and repairing various components, including moulds, tooling inserts, and machine parts.

DRILLING MACHINE: Drilling machines are indispensable for creating holes in workpieces with precision and accuracy. They are utilised for tasks such as mould and die repair, machining new components, and general fabrication work.
Having these tool work and repair machines in your facility equips your company to handle a wide range of tasks related to maintaining, repairing, and fabricating components for injection moulding machines and other equipment. This comprehensive capability enhances your ability to provide full-service solutions to your clients, ensuring the efficiency and reliability of their manufacturing processes.

3-axis CNC machining center XYZ 800 HD: The XYZ 800 HD can cut even the toughest materials faster than most other competitor VMCs.

Number of axes  : 3-axis
Spindle orientation : vertical
Spindle mount : BT 40, SK40, CAT40
Number of tool stations:  24 tools
Applications   : cutting, for automatic tool changers, for titanium
Other characteristics :high-performance, compact, high-rigidity, tapping


JM 650+NZ50+D430 – 920 x 600 x 820 mm
High machining speed
Less electrode wear
Best surface finish Ra 0.2 µ
X-Y motorized column moving
Z axis AC servo motor for high jump speed
Machine bed bearing capacity 2200 Kg

DK7732 EDM wire cutting cut machine:

Model: DK7732
Workbench stroke: 320mmX400mm
Cutting taper: ±3°
Z-axis machining height: 350mm
Cutting accuracy: ≤0.015mm
Roughness: Ra≤1.6µm
Cutting speed: 130-200mm2/min
Input voltage: three-phase AC380/415/480 / 50Hz/60Hz
Power: 3KW




Types of Injection Moulds We Can Handle

Our company excels in handling various types of injection moulds to cater to diverse production needs:

Single-cavity Moulds: 
Designed for producing one part per cycle, suitable for low-volume production or prototyping.
Multi-cavity Moulds:
Configured with multiple cavities to produce multiple parts simultaneously, ideal for high-volume production.
Family Moulds:
Constructed to produce multiple related parts in a single moulding cycle, optimising production efficiency.
Hot Runner Moulds: 
Equipped with a heated manifold system to maintain molten material flow, reducing cycle times and material waste.
Cold Runner Moulds: 
Utilise a non-heated runner system, suitable for materials sensitive to heat or requiring colour changes.
Insert Moulds: 
Designed to encapsulate inserts or metal components within the moulded part during the moulding process.
3-Plate Moulds: 
Incorporate 3-plate mould designs as a solution for complex part geometries and multipart assemblies.
High Complex Moulds: 
Feature advanced mechanisms such as side cores with finger cams, doglegs, cylinders, and lifter mechanisms for complex part designs.
Specialised for moulding parts with extremely small dimensions and tight tolerances, requiring high precision machining and moulding techniques for accurate and repeatable results.
Our expertise and capabilities encompass a wide range of injection mould types, enabling us to meet varied manufacturing requirements efficiently and effectively.


Our company operates advanced development facilities dedicated to injection mould manufacturing and refinement. These cutting-edge facilities are equipped with state-of-the-art technologies and staffed by experienced professionals, allowing us to deliver high-quality moulds that precisely meet our clients' specifications. Here is an overview of our development capabilities:

CAD/CAM Design: Our team utilises advanced Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) software to conceptualise and create intricate mould designs. This technology enables us to optimise mould geometry for efficiency, precision, and durability.

Simulation and Analysis: Before fabrication, our engineers conduct comprehensive simulation and analysis using finite element analysis (FEA) and mould flow analysis software. This process helps identify potential issues such as part defects, warpage, and flow imbalances, allowing for preemptive adjustments to optimise mould performance.

Tooling and Machining: Our development facilities are equipped with a range of precision machining equipment, including CNC milling machines, lathes, and grinding machines. This enables us to fabricate moulds with tight tolerances and intricate features, ensuring consistency and quality in the final moulded parts.

Testing and Validation: We have dedicated testing areas where we rigorously evaluate the performance of newly fabricated moulds. This includes dimensional inspection, material compatibility testing, and functional testing under simulated production conditions. Any necessary adjustments are made to ensure that the moulds meet our clients' requirements and industry standards.

By investing in advanced development facilities and employing a multidisciplinary approach, we accelerate the mould development process while maintaining the highest standards of quality and precision. Our commitment to innovation and continuous improvement ensures that we remain at the forefront of injection mould manufacturing, providing our clients with reliable solutions for their production needs.


In addition to our core injection moulding services, we take pride in offering a value engineering service aimed at optimising the cost-effectiveness of mould manufacturing for our clients. Our project and design engineers will conduct a comprehensive analysis of the product design and mould requirements to identify opportunities for cost savings without compromising quality or functionality.

A key aspect of this service involves scrutinising the product design for any features or profiles that may contribute to excessive manufacturing costs. Our team understands that certain design elements, while aesthetically pleasing or functionally desirable, can significantly inflate mould production expenses. These "unwanted profiles" may include intricate details, undercuts, or unnecessary material thicknesses that add complexity to the mould-making process.
Through collaborative discussions with our clients, our engineers will carefully evaluate the necessity of these design elements and assess the feasibility of simplifying or removing them. By leveraging our expertise and industry insights, we can suggest alternative approaches or design modifications that achieve the desired functionality while streamlining the mould manufacturing process and reducing costs.

This value engineering approach underscores our commitment to delivering practical and cost-effective solutions tailored to our clients' needs. By fostering open communication and collaboration between our team and our clients, we aim to maximise the value proposition of our injection moulding services while ensuring optimal outcomes for every project. With our value engineering service, clients can expect not only superior quality and performance but also enhanced cost efficiency and competitiveness in the marketplace.


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Contact No. :020 8610 9669

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