Pressurized-Equipment
Fabrication
Machining
Reconditioning and repair
Design
Ancillary-services
Plate Profiling
Pressurised Equipment
Turnmill has developed a core expertise in the design and manufacturing of pressure vessels, columns, and shell-and-tube heat exchangers. We supply numerous units annually to a diverse range of industries, including chemical, petroleum, and minerals processing.
Our manufacturing capabilities encompass a broad spectrum of materials, ranging from standard boiler plate to advanced alloys such as stainless steel, duplex stainless steel, and other specialized materials.
Turnmill Specializes in fabricating:
- Columns
- Reactors
- Vessels
- Heat Exchangers
Fabrication
Turnmill has played a key role in supplying critical equipment for some of the largest industrial projects in South Africa and internationally. Our notable contributions include major projects such as Mozal, Richards Bay Hillside, Saldanha Steel, the Huletts Aluminium Expansion, Chambishi Metals, Sasol Turbo, Sasol Octane, Temane, the Natref Oil Refinery Expansion, the Medupi and Kusile Power Stations, the Sishen Expansion Project, the Gamsberg Expansion Project, the Araguaia Nickel Project, the Kamoa Kakula Copper Project and the Zimplats Expansion Project.
Machining
Machine shop capacities
- 4,000 m2 floor space under crane
- Workpiece up to 50 tonnes
- CNC Milling up to 8.5 m
- CNC Lathes up to 1m Ø, 4m L
- CNC Vertical lathes, with milling, up to 2.6m Ø, 2.8m H
- Conventional boring mills up to 160mm spindle
- Conventional lathes
- Conventional vertical lathes
- Automatic welding
- Fitting and testing
Plate Profiling
Laser Profiling Shop
Commissioned May 2025
Workshop:
- 1500 m2
- 2x 10t overhead cranes
Machine:
- Cutting size: 15m x 4.5m
- Laser source: 30 Kw (up to 75mm thickness)
- Bevel function
The introduction of a laser profiling machine improves turnaround time and cost.
Reconditioning and Repair
Turnmill specialises in repair reconditioning of the following:
WEARABLE SURFACES
Restoration of wear surfaces by weld-up, re-machining and heat treatment
GEARS AND GEARBOXES
Manufacturing and repairs
HEAT EXCHANGERS
Manufacturing and replacement
Design
In-House Design and Draughting Services
Turnmill offers comprehensive in-house design and draughting services, supported by a fully computerized drawing office. We are frequently called upon to create detailed drawings or convert international designs to South African standards.
Expertise in Design Codes & Standards
With considerable experience in designing to the following industry standards, Turnmill ensures all projects meet rigorous compliance requirements:
- EN 1113 (PD 5500) – Pressure Vessels
- ASME VIII – Pressure Vessels
- TEMA – Heat Exchangers
- API 620 – Vessels and Tanks
- API 650 – Vessels and Tanks
- BS 2654 – Tanks and Silos
- BS 4076 – Steel Chimneys, Stacks
- SANS 10160 – Seismic Design
State-of-the-Art Design Software
Turnmill utilizes advanced design software to ensure accuracy and efficiency throughout the design process. Our capabilities include:
- PV-Elite
- Compress
- CodeCalc
- MatchCad
- MSC Patran/Nastran
- MSC Apex
- Autodesk Fusion
- Autodesk Inventor Professional
- Autodesk Product Design &
- Manufacturing collections
Ancillary services
HEATTREATMENT
Stress Relief and Normalizing done on site utilizing gas fired furnaces.
LOGISTICS MANAGEMENT
Turnmill has resources in place to manage the complex logistics of transporting large fabricated products over land throughout Southern Africa.
PROJECT MANAGEMENT
The complex engineering performed at Turnmill is backed by experienced project management teams employing computerised planning and progress monitoring
CORROSION PROTECTION
Sandblasting and Spray Painting done on site according to customer requirements