Projects — Selected case studies, shown like short films

Challenge. Action. Outcome. Timelines and measurable results from Johannesburg to overseas—compressors, mills, power stations and offshore plants.

Request a Quote Call / WhatsApp Request Estimate

Serving Johannesburg, Angola, Singapore, Malaysia, Fiji and island nations.

dawn-lit plant wide

Selected Case Studies

Each entry is presented as a short film: Challenge → Action → Outcome. Tap to expand timelines, scope, location, and measurable results.

compressor close hands

Compressor Overhaul — Johannesburg Power Plant

Location: Johannesburg, South Africa • Timeline: 6 weeks • Scope: Full compressor disassembly, shaft repair, reassembly, pressure testing

Challenge: Recurrent unplanned downtime; bearing failure causing production loss.

Action: Full strip-down, bearing replacement, precision shaft alignment, VPI stator re-insulation, and 72‑hour site trial.

Outcome: Downtime reduced from 3x per month to zero in 9 months; energy draw improved 4.6% — Client production restored.

Downtime ↓ 100% Energy ↓ 4.6% Mobilised in 48h
Request similar solution
offshore rebuild platform

Offshore Compressor Rebuild — Angola (Client: Confidential)

Location: Angola • Timeline: 10 days mobilisation + 4 weeks on-site • Scope: Offshore strip & rebuild, alignment, offshore certification

Challenge: Urgent certification failure threatening export schedule.

Action: Rapid mobilisation of specialised technicians, on-platform rebuild, NDT and pressure testing.

Outcome: Certificate restored; vessel sailed on schedule; avoided US$1.2M penalty.

Penalty avoided US$1.2M Mobilised 72h NDT pass 100%
Request similar solution
gearbox replacement hands

Gearbox Replacement — Milling Plant, North West Province

Location: North West Province, South Africa • Timeline: 3 weeks • Scope: On-site gearbox replacement, alignment, vibration baseline

Challenge: Severe vibration and cascading drivetrain damage.

Action: Emergency replacement, dynamic balancing, commissioning support.

Outcome: Vibration reduced 87%; projected asset life extended 6 years.

Vibration ↓ 87% Asset life +6 years 24/7 support
Request similar solution
fabrication line wide

Turnkey Installation — Food Processing Line, Singapore

Location: Singapore • Timeline: 12 weeks • Scope: Fabrication, installation, CIP system commissioning

Challenge: Tight hygiene standards and complex CIP sequencing.

Action: Shop fabrication to ASME standards, staged installation, verified CIP cycles.

Outcome: Commissioned on schedule; throughput improved 12%; full HACCP compliance.

Throughput +12% HACCP compliant Turnkey delivery
Request similar solution

View all projects

Explore our full archive of delivered projects and measurable results.

See projects archive

Compressor Overhaul — Johannesburg Power Plant

Location: Johannesburg, South Africa • Timeline: 6 weeks
compressor overhaul wide
field crew flange alignment laser tool site trial pressure on-site team candid

Challenge: Recurrent unplanned downtime; bearing failure causing production loss.

Action: Full strip-down, precision shaft repair, bearing replacement, alignment, reassembly, pressure testing and 72‑hour site trial.

Outcome: Downtime reduced from 3x per month to zero in 9 months; energy draw improved 4.6%; client production returned to specification.

Timeline

  1. Mobilise (48h)
  2. On-site strip (Week 1)
  3. Repair & test (Week 2)
  4. Reassembly & commissioning (Week 3)
  5. Trial (72h)
  6. Handover (End Week 6)
Download full report (PDF)
“Main Switch arrived prepared and restored our compressors to full output in days.” — Operations Manager, Johannesburg Power Plant
Need the same certainty? Request a quote, call +27 72 552 0240 or WhatsApp us.
Request a Quote Call / WhatsApp

Measurable results

Concrete outcomes from recent projects.

Average mobilisation time
≤ 48 hours
Average downtime reduction
≥ 60%
Energy improvement (sample projects)
avg 5.2%
Turnkey projects delivered on schedule
92%

Client gratitude

Eight selected responses from operations managers, procurement leads and EPC partners. Colourised to reflect human gratitude.

OM
Operations Manager, Johannesburg
“Main Switch arrived prepared, and our compressor has run without fault for nine months.”
ML
Maintenance Lead, Angola
“They mobilised within 48 hours and avoided a major penalty.”
P
Procurement, Singapore
“Turnkey delivery; minimal operational disruption and clear communication throughout.”
EC
EPC Contractor, Malaysia
“Skilled technicians who integrate seamlessly with our team.”
PM
Plant Manager, South Africa
“Our milling line throughput improved immediately after commissioning.”
FL
Maintenance Lead, Fiji
“Emergency overhaul completed overnight; excellent professionalism.”
PS
Procurement Specialist, Johannesburg
“Detailed reports and transparent pricing made procurement easy.”
OM
Operations Manager, Angola
“They built certainty where downtime was the default.”

Request an estimate

Location and reach

Rooted in Johannesburg, operating across Africa and select international partners: Singapore, Malaysia, Angola, Fiji and Pacific island nations.

Operational reach map Johannesburg Angola Singapore Malaysia Fiji
Hover or focus nodes to see locations. (Accessible tooltips activate on keyboard focus.)

Follow our updates

Project updates, technical posts and safety insights on LinkedIn.

Follow on LinkedIn

Procurement? Request references

Quick reference requests for procurement and EPC teams.

Request references
Ready to turn urgency into certainty?
Request a quote, call or WhatsApp +27 72 552 0240, or email admin@mainswitchengineering.co.za
Request a Quote Call / WhatsApp