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Business Details
50+ Years
experience
Precision CNC Engineering Solutions in Portchester
Founded in 1959, Portchester Engineering has evolved from a traditional workshop to a leading 24/7 CNC machining facility delivering precision-engineered components globally. Our expertise spans prototype development and batch production, supported by ISO 9001:2015 and ISO 14001:2015 accreditations. We prioritise reliability through substantial investments in advanced machinery, including Mazak Integrex systems and automated inspection equipment. Our quality management processes ensure compliance with international standards while maintaining strict confidentiality agreements with clients. With a workforce experienced in sectors like aerospace, defence, and marine engineering, we guarantee on-time delivery without compromising precision.

Our technical capabilities include 5-axis machining, CNC turning, and vertical machining, complemented by surface treatments and fabrication services. Operating from a purpose-built facility with dedicated inspection rooms, we maintain rigorous quality control for clients ranging from SMEs to major multinational corporations. The companys ongoing digital transformation enables seamless CAD file integration for global order fulfillment. Our commitment to innovation remains balanced with adherence to traditional engineering principles of accuracy and durability. This strategic approach has solidified our reputation as a trusted partner for complex machining requirements across diverse industries.
Services
CNC Machining Precision Engineering Quality Control Prototype Development Batch Production 5-Axis Machining Marine Engineering Aerospace Components Automated Inspection Surface Treatment
Details
  • Year established: 1959
Highlights and features
  • 24/7 CNC machining capabilities since 1959
  • ISO 9001:2015 and ISO 14001:2015 certified
  • Multi-axis machining up to 660mm diameter
  • Automated Renishaw inspection systems
  • Confidentiality agreements with all clients
Associations and certifications
  • ISO 9001:2015
  • ISO 14001:2015
Services
5-Axis Machining
Our Mazak Integrex 200 S IV systems enable 5-axis precision machining for complex components up to 1016mm length. Capable of simultaneous multi-directional cutting, this technology reduces setup times while maintaining tight tolerances for aerospace and medical industry applications. The integrated milling spindle achieves 12,000rpm for superior surface finishes.
Quality Control
In-house quality assurance using Axiom Too CNC coordinate measuring machines ensures compliance with ISO 9001:2015 standards. Our dedicated inspection room performs dimensional analysis with 0.001mm accuracy through Renishaw probes and optical measurement systems for critical aerospace and defence components.
CNC Turning
Modern Mazak Quickturn centres deliver high-precision turning capabilities for shafts and cylindrical components up to 380mm diameter. Equipped with driven tool stations and 1150mm bar feeders, our systems combine milling and turning operations to reduce production cycles for complex geometries.
Prototype Development
Rapid prototyping services transform CAD designs into functional components within 24 hours using our flexible CNC infrastructure. This capability supports clients requiring proof-of-concept validation before full-scale manufacturing, with materials ranging from aerospace-grade aluminium to stainless steel.
Automated Production
Erowa Compact Robot systems enable 24/7 unmanned manufacturing through palletised workholding and automated tool change. This lights-out capability maintains production continuity across three shifts while ensuring consistent quality through thermal compensation systems.
People
Sam Morrison
Managing Director
Sam leads strategic development at Portchester Engineering with over 30 years' experience in precision machining. He oversees operations, customer relations, and growth initiatives while maintaining industry standards compliance.
Ben Creese
Engineering Director
Ben directs technical operations with specialization in CNC programming and process optimization. His 25-year engineering background ensures technical excellence in manufacturing complex components for international clients.
Questions
What industries does Portchester Engineering serve?
We supply precision components to aerospace, defence, marine, medical, and motorsport industries, with specialized capabilities for subsea and satellite applications.
What machining tolerances can you achieve?
Our inspection systems maintain tolerances down to ±0.001mm using calibrated equipment, meeting strict requirements for critical aerospace and defence applications.
Can you handle urgent manufacturing requests?
Our 24/7 operations and flexible capacity allow emergency production runs with fast turnaround where technically feasible, supported by automated systems.
Do you offer international shipping?
We deliver directly to stock for major international clients, with logistics partners ensuring secure worldwide transportation of precision-engineered components.
What quality certifications do you hold?
We maintain ISO 9001:2015 quality management and ISO 14001:2015 environmental management certifications for continuous improvement and client assurance.