S-01
Structural steel design
Access platforms, walkways, stairs, cat ladders, pipe racks, equipment supports and roof structures, designed for real operating loads including vibration.
- SANS 10162
- Load calcs
- Connections
PDE · Mechanical & structural engineering · Gauteng
We work alongside fabricators, contractors and plant owners as an on-demand engineering partner. Design, calculations, drawings and documentation, delivered to ECSA standards, without adding to your overhead.
Clients and partners · Projects delivered for Sasol, Barberton Mines, Venetia Mine, Eland Mine and Shiba Mine
About PDE
Pro Design & Engineering (Pty) Ltd
Established 2020 · Pretoria
We don't replace your engineers. We step in when a job needs specialised input, deliver it properly, and step back out.
Engage PDE per project or per drawing. No recruitment, no idle capacity on your payroll.
Design and calculations prepared and checked by ECSA-registered engineers.
Drawings your fabricators can cut and weld from, with the documentation your client's QA team will ask for.
Services
From a single fabrication drawing to a full design package with calculations and handover documents.
S-01
Access platforms, walkways, stairs, cat ladders, pipe racks, equipment supports and roof structures, designed for real operating loads including vibration.
M-02
Plant equipment, conveyors, food processing equipment, pressure vessel internals and reverse engineering of existing machinery.
D-03
General arrangements, part and assembly drawings, cutting lists and 3D models, issued as DWG, PDF and native model files.
A-04
Site measurement of existing plant and structures, turned into accurate as-built drawings and models for maintenance, modification or replacement.
P-05
P&IDs for process plants and tank farms, HVAC, kitchen extraction and hot water services for commercial and leisure buildings.
Q-06
The paperwork that gets a job approved and closed out, prepared alongside the design so nothing is left to the end.
Project register
Design, drawing, survey and documentation work for contractors, fabricators and plant owners across mining, chemical and commercial projects.
| Ref | Project | Sector | Scope |
|---|---|---|---|
| REP-M-D-001 | Rwendo Engineering & Projects · for SasolDistillation column as-built survey, Sasol SecundaSite measurement of 16 large distillation columns across four process units, followed by as-built drawings, 3D models and fabrication drawings for the column internals. |
Petrochemical · Secunda | Survey · DWG · 3D |
| RWD-CONSORT | Rwendo Engineering & Projects · for Barberton MinesConsort Section roof replacementStructural design of the replacement roof, with method statements and a quality control plan for client submission. PDE is overseeing the manufacturing phase. |
Gold mining · Barberton | Design · MS · QCP · Oversight |
| RWD-THV-PLT | Rwendo Engineering & Projects · for Thavha ServicesVenetia Mine grating access platformFour-sheet GA package for a steel and grating access platform, with kick-plate perimeter calculations, removable flat-bar supports and AWS D1.1 welding notes. Cross beams re-sized from 203×203×45 UC to 152×152×23 to clear a 1200NB pipe. |
Diamond mining · Limpopo | Design · Calcs · GA |
| RWD-TCPL | Rwendo Engineering & Projects · for PrepQuipTurbo cell access platform, Eland MineMulti-level personnel access platform around a Ø4 000 turbo flotation cell. 13.5-tonne structure on eight columns, with a structural calculation report and foundation load tables to SANS 10160 and 10162. |
Platinum mining | Design · Calcs · 3D |
| RWD-CLS-001 | Rwendo Engineering & ProjectsClassifier reverse engineering, Shiba MineComplete reverse engineering of a classifier machine, including its spiral, to produce a full set of manufacturing drawings. |
Mining | Reverse engineering · DWG |
| PID-SOLV-26 | Rolfes Chemicals · with VEKO Engineering & SupplySolvent blending tank farm P&IDFull-plant P&ID covering 26 tanks, S355JR piping, actuated gate valves and PVDF magnetic-drive pumps. |
Chemical · Gauteng | P&ID |
| PDE-MSK-CAT | MSK Technical TradesFixed cat ladders & landing platformsWall-mounted ladders at 3.5 m, 9 m and 15 m. The 15 m design uses staggered flights so any fall is arrested at the intermediate platform, with bracket fixings to existing face brick. |
Commercial · Centurion | Design · Drawings |
| MEC-HVAC-HW | Arqiteq GroupLeisure facility mechanical servicesHVAC, kitchen extraction and hot water design, with site inspections during construction. |
Leisure · Thohoyandou | HVAC · Inspection |
References available on request.
How we work
A fixed sequence, so you always know what comes next and what you will receive.
You send the scope, sketches or photos. We return a fixed lump-sum quote, excluding VAT, with deliverables listed.
Measurement and inspection where existing plant or structures are involved.
Design to the applicable SANS codes, with a calculation pack you can file.
General arrangements, fabrication details and 3D models, issued for your review.
Final revision issued for construction, with support to your workshop during fabrication.
Sectors
Contact
Send PDE your drawings, sketches, site photos or a short description. That is enough to start.