About SAG-Tek
UK manufacturer of precision polishing technology, advanced SAG tools, and automated robotic finishing systems.
Precision Surface Finishing for Advanced Manufacturing
SAG-Tek Ltd is a precision engineering company based in Coalville, Leicestershire, UK. Founded in 2025, the company was established to bring Shape Adaptive Grinding (SAG) technology into production-ready tools and automated finishing systems for advanced manufacturing industries.
Today, SAG-Tek supplies precision polishing tools and robotic polishing systems to manufacturers in aerospace, medical devices, optics, and precision engineering, supporting customers from initial trials through to full-scale automated production.
Shape Adaptive Grinding
SAG-Tek's products are built around Shape Adaptive Grinding — a process originally developed for precision optics manufacturing that we have adapted for broader industrial applications.
The core principle is compliant, pressure-controlled contact: the tool conforms to the workpiece rather than the other way around. This enables consistent finishing on complex geometries without manual skill dependency, improving repeatability, reducing variability, and supporting automated production.
We support customers with process parameters, machine setup, optimisation, and troubleshooting, so the tools perform reliably in production.
Every SAG-Tek system is configured to the customer’s machine, material, geometry, and target surface finish requirements. The result is a controlled, repeatable finishing process designed specifically for production manufacturing.
Built Around Process Performance
SAG-Tek combines tools, automation, and process engineering into complete surface finishing solutions for demanding manufacturing environments.
Technology Designed for the Application
SAG tools are engineered specifically for the customer's geometry, material, and target finish. Every process is developed around the application rather than adapted from generic polishing tools.
Tools and Process Knowledge Together
We support customers with process parameters, machine setup, optimisation, and troubleshooting — ensuring the tools perform reliably in production.
Production-Proven Results
Published results include Ra 0.002µm on stainless steel, Ra 0.02µm on titanium orthopaedic implants, and full machining mark removal on complex surfaces.
UK Manufacturing & Support
All SAG-Tek systems and tools are designed and manufactured in Coalville, Leicestershire with direct engineering support from our UK team.
Custom Tool Development
We develop bespoke tools geometries, bond systems, and polishing strategies for customer-specific applications and production requirements.
Application Engineering
From trials through to production deployment, we work alongside customers to develop stable, repeatable finishing processes for automated manufacturing.
Designed & Manufactured in Coalville
SAG-Tek tools and systems are designed and manufactured at our facility in Coalville, Leicestershire. We supply customers directly and provide process support from our UK engineering team.
Customers are welcome to visit for process demonstrations, tools trials, and application development projects.
UK manufacturing enables responsive lead times and rapid application support.
Structured development trials validate tools and process parameters before production deployment.
Company Milestones
Let’s Discuss Your Application
Speak with our engineering team about robotic polishing, advanced SAG tools, and production-ready surface finishing solutions tailored to your manufacturing process.
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