Fabrication and Welding
John M Henderson Material Preparation, Fabrication and Welding bays cover an area of 5000 sq.m and are serviced by radio controlled overhead cranes with capacities up to 40 Tonnes. A wide range of fabrications are manufactured in both Carbon and Stainless Steels.
Plate profiles are produced by a Computer Aided Manufacturing System in conjunction with CNC Flame and Plasma cutting machines. These are backed up with a range of Saws and Guillotines which allow John M Henderson to prepare all their own materials for Fabrication.
Welding is carried out by Mig, Tig, Manual Metal Arc and Sub Arc processes to procedures certified by Lloyds. All welders are qualified to BS EN 287/288 and ASME IX. Welders qualifications and procedures are constantly being updated and reviewed.
Interim inspections are carried out during the Fabrication and Welding stages by Supervisors and Quality Assurance personnel to ensure all items are manufactured strictly in accordance with contract and drawing specifications