Quality Control
At GPR Ltd, Quality Control is not an afterthought, it is at the very heart of our operations. Based in Camberley, Surrey, our precision engineering facility delivers machined components to industries where performance, tolerance, and reliability are non-negotiable. We understand that quality is what sets world-class manufacturers apart, and we are committed to maintaining the highest standards across every stage of production.
From initial drawings to final inspection, every part we produce undergoes a structured quality assurance process designed to meet and exceed your expectations.
Why Quality Control Matters
In precision engineering, even the smallest defect can have significant consequences. That’s why our quality systems are built around:
- Preventing errors before they occur
- Identifying non-conformities quickly
- Ensuring traceability across every order
- Delivering consistently high performance
Whether it’s a one-off prototype or a multi-part production batch, we treat every job with equal attention to detail.
Our Approach to Quality Control
Our quality process is structured, proactive, and ISO-certified. It includes:
- First Article Inspection (FAI): Initial components are thoroughly inspected before batch production proceeds.
- In-Process Checks: Operators perform dimensional and visual checks throughout the machining cycle.
- Final Inspection: Completed parts are measured, verified, and logged prior to despatch.
- Calibration System: All inspection tools are calibrated on a strict schedule and traceable to national standards.
- Documentation & Traceability: Every part can be traced back to its raw material, machine program, operator, and inspection record.
Why Axiom Inspection Software Makes a Difference
Accurate measurement is critical to manufacturing excellence—and that’s exactly what the Axiom system delivers. At GPR Ltd, we utilise the Aberlink CNC Axiom Too 600 CMM, a precision coordinate measuring machine powered by Aberlink’s advanced 3D Geometric Measurement Software. This powerful combination ensures every component is inspected with absolute accuracy, speed, and traceability.
Why Axiom?
Our Axiom Too 600 CMM inspection system brings CAD-driven confidence to your quality control process by:
- Comparing physical components directly to the original CAD model – ensuring dimensional integrity to the finest detail
- Instantly identifying deviations – with intuitive pass/fail visualisation and reporting
- Automating inspection records – creating exportable, fully traceable quality data for every part
- Enabling repeatable, reliable results – across one-off prototypes or large production batches
By integrating the Axiom inspection system into our workflow, we maintain the high standards our customers demand—consistently and efficiently.
Inspection Equipment
We use a wide range of advanced inspection equipment to verify component accuracy and compliance:
- Digital and analogue micrometers and callipers
- Height gauges and bore gauges
- Thread gauges, pins, and ring gauges
- Surface finish measurement tools
- Custom jigs and fixtures
- Optical comparators and shadowgraph systems
- CMM (Coordinate Measuring Machine) for complex part geometry
All inspection tools are regularly verified for accuracy and stored in temperature-controlled environments to maintain consistency.
GPR Ltd operates under a fully documented Quality Management System certified to ISO 9001:2015. This standard governs every aspect of our production and quality processes, ensuring:
- Defined procedures for each operation
- Consistent review and audit cycles
- Continuous staff training and skills improvement
- Risk assessment and non-conformance resolution
- Reliable supplier and subcontractor management
This framework allows us to deliver products that conform to customer and regulatory requirements every time.
View our Certificate Here
Quality Across All Services
Our Quality Control applies to all machining disciplines, including:
01. CNC Milling
Full dimensional verification and finish inspection on milled parts.
02. CNC Turning
Real-time checks on concentricity, surface finish, and thread accuracy.
03. 5 Axis Milling
Geometric checks for complex parts using multi-axis verification routines.
04. Assembly & Finishing
Final inspection before packing, including visual and functional tests where required.
Supporting Documentation
We provide a full range of quality documentation to support your compliance requirements, including:
- First Article Inspection Reports (FAIRs)
- Batch inspection records
- Material certificates (e.g. EN 10204 3.1)
- Certificate of Conformity (C of C)
- Inspection plans and control checklists
These are available as standard or on request, and can be tailored to meet sector-specific standards such as aerospace, medical, or defence.
Continual Improvement
At GPR Ltd, Quality Control is not static—it’s a living, evolving part of our culture. We regularly review our systems and invest in new technologies to stay at the forefront of precision engineering.
- Feedback loops ensure lessons from every project are captured.
- Staff are encouraged to participate in quality initiatives.
- Lean methodologies and process audits keep our workflows efficient and effective.
This commitment to improvement helps us meet client demands while strengthening long-term relationships.
Why Choose GPR Ltd?
When you partner with GPR Ltd, you gain access to more than just machining expertise, you get a team committed to quality, reliability, and transparency.
- Comprehensive Inspection and Traceability
- Experienced Team with Industry Knowledge
- Modern Equipment and Metrology Tools
- Custom Quality Documentation and Reporting
From the first drawing to the final part, we deliver confidence with every order.