In-House Manufacturing
JFN has an extensive manufacturing capability for one-off or multiple items. The use of CNC-driven equipment delivers flexibility and efficiency and integrates seamlessly into the design process.
The manufacturing interface with the design is via a file containing the part profile drawn full size and mid-tolerance.
Half Section Profile required for CNC Programming
CNC Programming is used to define the material type, stock material size and tools to be used. There is no manual input of dimensional data to eliminate transcriptional errors and direct transmission of machine code to the machines. Machining cycle times are calculated automatically.
Automated tool setting routines are used to select the correct tool, load the tool turret and select the tool tip without the requirement for operator input.
- Electronic
- Probe
- Tool Offset Data
- Base Stores Results
The machining is followed without removing the component from the machine by an automated inspection process using electronic probes. The automated inspection process allows for compensation for tool wear and helps reduce component lead times.
Engineering Requirements Planning (ERP)
- Data for every part used is stored and linked by a bill of materials for each assembly.
- Production resources required for the manufacture of parts and the routing of those parts to each resource is also entered.
- Benefit of this system for one off jobs is that it provides the base data for the allocation of stock material, material ordering, material traceability, engineering change control, capacity planning and the reporting of shortage lists.
- For repeat orders, data can be used to automatically generate material orders and works orders on individual bills of material, or though Manufacturing Requirements Planning (MRP), if there are many of the same parts being used by a number of orders.
- Significant savings in product management time result.
Production Planning
- When there are many orders for assemblies having some common parts, the MRP system enables works orders to be grouped so that all common parts can be put onto the same works orders and minimise CNC set up operations.
- All works orders can be loaded onto the appropriate resources and the effect can be assessed using infinite and finite capacity planning.
Machine Shop
Assembly Fitting Shops
- Size/Capacity – 300 m2 limited to max assembly profile 4m2
- Craneage – 2000 Kg, 3.7m Under Hook
- Additional mobile lifting equipment incl. 4T fork lift and 1T A-Frame
Fabrication/Planting Shops
Size, bay height access dimensions and craneage for each shop.
Welding Procedures – Spec BSEN 287 BS15614 ASME 1X
- Facility – Malton
- Size/Capacity – 10m2 dedicated, additional expansion available as required
- Craneage – 500kg, 2.5m Under Hook
Cleaning Facilities
Pickling, Ultrasonic and Vapour Blast.
Heat Treatment Facilities
Sub-contracted.
Design Codes and Standards used include but not limited to:
- BS 2573 – Rules of the Design of Cranes
- BS466 – Powered Driven Overhead Travelling Cranes
- BS EN 130001 – Crane Safety General Design
- BS EN 14238 – Manually Controlled Load Manipulating Devices
- BS EN 13135 – Safety Design Requirements for Electro/Non-Electro Technical Equipment
- BS EN 13155 – Non Fixed Load Lifting Attachments
- BS EN 12100 – Safety of Machinery Basic Concepts General Principals for Design
- BS EN 12077 – Cranes Safety Requirement For Health & Safety Limiting & Indicating Devices
- BS EN 1050 – Safety of Machinery Principles of Risk Assessment
- BS EN 1011 – Welding Recommendations for the Welding of Metallic Materials
- BS EN 61058 – Functional Safety of Electrical/Electronic/Programmable Safety Related Systems
- NF 0069/2 – Programmable System Based Instrumentation & Control
- BNF ES 0079 – Control, Electrical & Instrumentation Systems
- BS 7671 – IEE Wiring Regulations
- BS EN 50014 – Electrical Apparatus for Potentially Explosive Atmospheres
- BS 5958 – Control of Undesirable Static Electricity
- 98/37/EC Machinery Directive
- 89/336/EC EMC Directive
- 72/23/EC LV Directive
- Schedule of BNFL Specifications (NF/BNF ES) as applicable to discrete contract requirements
Maximum and minimum thickness welded for Carbon Steel, Stainless Steel:
Stainless steel: Butt Welds: (1.5mm - 16.0mm)
Fillet Welds: (0.7mm and above)
Carbon steel: Butt Welds: (3.0mm-20.0mm)
Fillet Welds: (0.7mm and above)
Welding techniques employed (Metal Arc, Gas Shielded, Atomic Hydrogen, etc.)
MIG, Star Kamanchi, 300 Amp, 1 set
TIG, Murex, 350 Amp, 1 set
Welding
- Total Welding Staff: 2
- Welding Engineers: Sub-contracted
- Metallurgists: Sub-contracted
- Welders and Class Approval: BS EN 287-1:2004 - Approval testing of welders for fusion welding & BS EN ISO 15614-1:2004 - Specification and qualification of welding procedures for metallic materials. (Ref: BS EN 288 - Specification and approval of welding procedures for metallic materials. Part 3 - Welding procedure tests for the arc welding of steels.)