Core Scope of Supply
Fabrication is executed in a covered, segregated facility configured to prevent cross-contamination between carbon and stainless product streams. Material flows in one direction — receiving, marking, cutting, forming, fit-up, welding, NDT, surface treatment, dimensional release, despatch.
Plant structures, conveyor gantries, tank farms, pipe racks, silos and platework supports fabricated to SANS 2001-CS1 / AISC and erected to survey-verified tolerance.
SX/EW mixer-settlers, electrolyte and organic tankage in 304L / 316L / 2205 duplex to API 650 App. S, EN 14015 and BS 4994 principles.
Leach tanks, thickener launders, water, reagent and fuel storage to API 650 / AWWA D100, internally lined where the duty requires it.
Stainless and carbon steel spool fabrication and installation to ASME B31.3 with full spool traceability and HDPE/GRP interface management.
Shutdown and greenfield mechanical installation, rigging, alignment, torquing and pre-commissioning support across the SADC region.
Commercial supply of structural steel sections, flanged piping, plate, fittings and electrical components, with detailed fabrication and erection drawings.
Material Selection
| Grade | Typical Duty in Mineral Processing | Key Fabrication Control |
|---|---|---|
| 304 / 304L | Water, mild process, potable and general platework | Low-carbon filler, interpass temperature control |
| 316 / 316L | Sulphate and chloride electrolyte, SX organic, reagent | ER316L filler, back-purge, full pickle & passivate |
| 317L / 904L | Elevated chloride and higher-acid electrolyte duty | Metallurgical review, PMI on all incoming plate |
| 2205 Duplex | High-chloride, high-strength tankage, SCC risk zones | Heat input control, ferrite balance to ASTM E562 |
| 2507 Super Duplex | Aggressive chloride/acid and high-Cl raffinate duty | Qualified WPS with corrosion testing (ASTM G48) |
| Ti Gr. 2 (on request) | Extreme acid-chloride heat exchange duty | Fully segregated cell, inert gas shielding regime |
Facility
| Element | Provision |
|---|---|
| Covered Fabrication Area | Structural bay, carbon platework bay, dedicated stainless bay, piping spool bay |
| Stainless Segregation | Physically separated bay with stainless-only tooling, consumables and lifting tackle |
| Overhead Cranage | Multiple overhead travelling cranes; heavy lifts by mobile crane on the laydown |
| Laydown & Assembly Yard | Hardstand yard for trial assembly, modularisation and load-out |
| Blast & Paint | Enclosed blast booth to ISO 8501-1 Sa 2½ and controlled spray booth with DFT verification |
| Pickling & Passivation | Bunded pickling bay with effluent containment and neutralisation to ASTM A380/A967 |
| Consumable Store | Temperature and humidity-controlled electrode store with quiver control per AWS A5 |
| Calibration Room | Controlled measuring and test equipment register and recall system |
Plant
| Category | Equipment |
|---|---|
| Cutting | CNC plasma and oxy-fuel profiling, bandsaw, cold saw, orbital pipe cutting |
| Forming | Plate rolls, press brake, section rolls, pipe bending, plate straightening |
| Welding | GTAW/SMAW/FCAW/GMAW inverter sets, SAW column-and-boom, positioners and turning rolls |
| Machining | Lathe, milling, drilling, flange facing, bevelling machines |
| Lifting & Rigging | Overhead cranes, mobile cranes, telehandlers, load-tested rigging inventory |
| Inspection | UT thickness gauges, ferrite scopes, PMI XRF analyser, hardness testers, total station |
Supply of Commodities
Beyond fabrication and installation, SA Services and Trading supplies a wide range of commodities the mining and minerals-processing sector depends on — sourced from reputable manufacturers, documented to client requirements, and delivered with the same traceability discipline as our fabricated packages.
Centrifugal, positive-displacement, slurry, dosing and submersible pumps for process, slurry, reagent and dewatering duties, with mechanical seals and spares.
Gate, globe, check, ball, butterfly and control valves in carbon, stainless and special-grade bodies, with manual, pneumatic and electric actuators and full trim documentation.
Field instrumentation for pressure, temperature, flow and level, together with control system hardware, PLC/SCADA integration and analytical instruments for the process plant.
Distribution and power transformers, switchgear, motor control centres and associated distribution boards for the plant electrical reticulation.
Low- and medium-voltage power, control and instrumentation cable, together with cable trays, ladders, glands and accessories for compliant plant reticulation.
Industrial and hazardous-area lighting, emergency and exit lighting, sockets, switches and accessories for both general and classified plant areas.
Conveyors, crushers, mills, screens, thickeners, launders, chutes and wear-resistant liners, supplied as packages or as individual equipment lines.
A broad range of consumables and spares that keep a mineral-processing plant running — from welding consumables and fasteners to gaskets, packing and PPE.
If a commodity is not listed above, contact the team — our supply network extends across the SADC region and is configured to source to client specification, on schedule, with full vendor documentation.
Project Execution
01
Kick-off, contract review, resource-loaded programme, ITP and quality plan agreed with the client before any steel is cut.
02
3D modelling, detailed fabrication and erection drawings, weld maps and material take-off issued for client approval.
03
Mill-certified material received, heat-number marked, colour-coded and positively identified before release to production.
04
One-directional shop flow — cut, form, fit, weld, NDT, surface treatment, dimensional release. No unverified item moves downstream.
05
Survey-controlled erection, rigging studies, torque records and alignment verification on site.
06
Punch-list close-out, Certificate of Conformity, Mechanical Completion Certificate and a Manufacturer's Data Record that survives audit.
