CNC MILLING
HIGH-PRECISION MACHINING FOR PROTOTYPES, CUSTOM PARTS & PRODUCTION.
We provide high-precision CNC milling services, programmed with advanced CAD/CAM software for maximum efficiency and accuracy.
Our team uses custom jigs and fixtures to streamline production, reduce cycle times, and ensure repeatable results – whether you need a single prototype or a full batch of complex components.
All parts are machined in-house to your exact specification, with a focus on quality, consistency, and quick turnaround.
REAL PARTS, REAL PRODUCTION
At the heart of what we do at Karpas Engineering is a love for making things — properly. Our CNC milling services are built around your ideas, whether it’s a one-off prototype or a full production run.
• Aluminium, steel, plastics, and more
• Brackets, housings, enclosures, tooling
• Trusted by engineers, designers, and UK manufacturers
We machine every part with care, precision, and a focus on delivering real value to your project.
Need a milled part? Get in touch — we’d love to help.
MATERIALS
We can CNC Mill from Aluminium, stainless steel, mild steel, brass, copper, acetal (Delrin), nylon, PTFE, polycarbonate, and more – including customer-supplied materials.
INDUSTRIES
We supply precision parts to sectors including: robotics, automation, electronics, lighting, packaging, product development, and education.
ADDITIONAL PROCESSES
We offer in-house processes such as rumbling & bead blasting to improve surface finish. We can also arrange external anodising & powder coating.
HELPFUL INFORMATION
FOR YOUR CNC MILLING PROJECTS
-
CNC milling is used to machine precision parts from metal and plastic, including brackets, housings, and mechanical components. It’s ideal for tight-tolerance work, custom features, and consistent repeatability.
-
We machine a wide range of materials, including aluminium, stainless steel, mild steel, brass, copper, acetal, nylon, and other engineering plastics. If you need advice on the best material for your part, we’re happy to help.
-
Send us your STEP files, 2D drawings, or a brief description of your part to info@karpas.co.uk. We aim to reply on the day the request is received.
-
Yes — we specialise in one-off prototypes and short production runs. Our flexible setup and in-house CAM programming make it easy to support rapid development and testing.
-
We aim to complete prototype parts in under 2 weeks, depending on complexity. For batch production or repeat work, we’ll confirm a lead time upfront — and stick to it. Fast-track options are available on request.
-
We support customers in electronics, robotics, lighting, packaging, automation, and product development — from startups to established UK manufacturers.
-
We’re a trusted, UK-based CNC machine shop in Hertfordshire focused on quality, communication, and fast turnaround. We provide honest feedback, support local supply chains, and act as an extension of your engineering team.
-
Karpas Engineering is based in Welwyn Garden City, Hertfordshire. We offer nationwide UK shipping and can arrange local delivery or collection for nearby customers.
MORE THAN MILLING
We don’t just mill — our in-house capabilities mean we can handle every stage of your project, from initial prototype to fully finished part:
High-precision turning with live tooling and Y-axis milling for parts that require both turned and milled features.
We support early-stage development with CAD design, functional prototyping, and assembly - ideal for engineers, startups, and R&D teams.
Fast, accurate CO₂ laser cutting for plastics, wood, and thin metals - perfect for custom inserts, panels, and housings.
Fibre laser marking for logos, part numbers, QR codes and traceability - applied directly to metals and plastics with lasting results.
Send us your CAD file or sketch and we’ll get back to you with a fast, honest quote.