G.B.C. grinding machine range
The range covers three machines – the G300, G400, and G800 – matched to different workpiece dimensions and automation levels. All three accept an optional weld polishing kit. They work on carbon steel, stainless steel, and other common fabrication materials, and are used by workshops supplying the oil and gas, power generation, and shipbuilding sectors across the Gulf.
G300: manual back-gouging on flat sheet metal
The G300 is a manually operated machine with a 300 mm grinding disc, designed for back-gouging flat sheet and plate. An integrated tracking wheel guides the disc along the weld seam and keeps groove depth consistent to 40 mm. Optional dust extraction, magnetic guide rails, and fume extractors make it practical for enclosed fabrication shops and site work under UAE health and safety requirements.
G400: semi-automatic back-gouging for pressure vessels and round workpieces
The G400 uses a 400 mm disc with an electronic feeding system that compensates for ovality and lateral drift on longitudinal and circumferential seams. It reduces machining time by up to 80% compared with manual angle grinding. Standard equipment at Gulf fabricators supplying vessels to oil refineries, gas processing plants, and desalination facilities. Pneumatic, electric, or hydraulic drive options available.
G800: fully electronic grinding for heavy-plate and nuclear-grade applications
The G800 carries an 800 mm disc on a brushless motor with LCD monitoring and a tilting head (0-90 degrees) that reaches flat plate, angled seams, and complex joint configurations. Material thickness up to 250 mm. Remote control console and optional CCTV support unsupervised runs. Qualified for nuclear-grade weld preparation, including documentation requirements at Barakah nuclear power plant in the UAE.
What back-gouging is and why it matters in Gulf industrial welding
Back-gouging removes material from the root face of a weld joint after the first pass to produce a clean groove for full-fusion welding from both sides. Without it, root defects such as lack of fusion, porosity, and slag inclusions remain trapped inside the joint. Most international weld codes referenced across Gulf project specifications require back-gouging on double-sided joints in critical service.
G.B.C. grinding machines remove material mechanically, producing a groove with uniform depth that needs minimal dressing before the second weld pass. This contrasts with air arc gouging, which introduces heat and carbon contamination that must then be ground out – adding a separate operation and extending total cycle time. In shipbuilding and hull repair, the consistent groove geometry that G.B.C. machines produce directly reduces inspection rejection rates.
Specify the right grinding machine for your project
G.B.C. Gulf’s technical team can confirm which model suits your workpiece dimensions, seam configuration, and production volume – whether you are equipping a new fabrication shop in Saudi Arabia, specifying machines for a plant turnaround in Abu Dhabi, or evaluating the range for a shipyard repair contract in Dubai.
Contact us with your workpiece type, plate thickness, and seam orientation and we will provide a direct recommendation with lead times.
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