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Expert Industrial Machining Services in Sheffield
M & J Engineering has been delivering precision machining solutions across Yorkshire for over three decades. We specialise in sub-contract machining services for one-off components and batch production, serving critical industries such as petrochemical, chemical, pharmaceutical, offshore energy, and atomic sectors. Our commitment to quality ensures components meet rigorous specifications while maintaining reliable turnaround times. We collaborate closely with clients throughout the machining process to eliminate errors and align with customer requirements. Strategic partnerships with local grinding, coating, and materials suppliers enhance our ability to provide comprehensive engineering support.

Our expertise spans complex components like heat exchanger tube plates, valve blocks, flanges, and agitators. With extensive capacity in conventional and CNC machining, vertical boring, and lifting capabilities, we offer tailored solutions for demanding applications. Our reputation is built on consistent delivery of high-integrity components that meet exacting technical standards. We actively engage with clients to understand evolving needs and maintain adaptability in our manufacturing processes. For three decades, our focus on technical excellence and customer collaboration remains central to sustaining trusted industry relationships.
Services
CNC Machining Conventional Turning Sub-Contract Machining Vertical Boring Batch Production Precision Milling Component Manufacturing Specialist Engineering
Highlights and features
  • We offer 30+ years' experience in precision industrial machining
  • Our team serves specialist industries with technical component requirements
  • We provide both one-off prototypes and batch production capabilities
  • Our process includes continuous client collaboration for accuracy
  • We maintain strategic partnerships for comprehensive engineering support
Services
CNC Machining
Our CNC machining services deliver precision-engineered components using advanced Haas and XYZ SLK equipment. We handle complex geometries up to 1600mm diameter for industries requiring strict tolerances. Our capabilities include multi-axis machining for aerospace and energy sector applications.
Sub-Contract Machining
We provide comprehensive sub-contract machining solutions for one-off prototypes and volume production. Our quality assurance processes ensure compliance with technical specifications across petrochemical, pharmaceutical and nuclear industries. Clients benefit from our technical expertise and equipment capacity.
Vertical Boring
With 60-inch Webster & Bennet boring equipment, we machine large diameter components up to 1800mm. Our vertical boring services meet stringent requirements for offshore and industrial applications, maintaining precision across oversized workpieces.
Batch Production
Our production capabilities span single components to medium-volume runs. We implement quality control systems throughout manufacturing cycles for consistent output. This flexibility supports clients requiring either prototyping or ongoing production.
Component Supply Chain
We coordinate with local grinding, coating, and materials suppliers to deliver integrated solutions. This network enables comprehensive engineering support from raw materials procurement through to finished components. Clients benefit from streamlined supply chain management.
Questions
What industries do M & J Engineering serve?
We support petrochemical, pharmaceutical, offshore energy, atomic energy sectors and general engineering. Our machining capabilities meet technical requirements across these critical industries.
Can you handle large component machining?
Yes, our 60-inch vertical borer handles components up to 1800mm diameter. We machine large flanges, hubs and structural components requiring precise tolerances.
What production volumes do you accommodate?
We work with one-off prototypes and batch production. Our facilities support both small component runs and repeat manufacturing schedules for ongoing requirements.
How do you ensure technical compliance?
We collaborate with clients throughout machining processes. This includes reviewing specifications, implementing quality checks, and confirming final measurements match required tolerances.
What CNC capabilities do you offer?
Our CNC machining covers Haas VF series machines with working envelopes up to 1600mm X, 1000mm Y. We handle complex 3D profiling and multi-axis machining for technical applications.