Sabroe · Pretoria
PLC & Controller Programming for Sabroe Systems in Mining & Bulk Air Cooling | Rosslyn
Controller configuration, defrost strategies and supervisory integration. We support Sabroe industrial compressor packages running R717, R744, R134a in mining & bulk air cooling across Rosslyn and Rosslyn Automotive Hub.
Technical highlights
SAQCC Gas certified plc & controller programming
SANS 10147 pressure and gas compliance, genuine Sabroe OEM parts and rapid dispatch to Rosslyn.
- SAQCC Gas registered technicians handling R717, R744, R134a
- SANS 10147 pressure vessel and installation compliance
- Genuine Sabroe OEM parts — Sabroe valve kits, Unisab control boards and oil separators
- 1–2 days per plant to Rosslyn, Pretoria
Common maintenance vectors
What we find on these systems
- Default parameter sets left in place
- Defrost timing mismatch
- Alarm bands set too wide
- Unisab sensor faults on legacy panels
- Oil cooler fouling reducing capacity
- Vibration cracking on discharge pipework supports
Dynamic specifications
Mining & Bulk Air Cooling duty on Sabroe plant
Bulk air coolers, ice plants and surface chill dams
| Typical system duty | +2 °C to +12 °C chilled water (Full plant control range) |
|---|---|
| Design humidity | 90–100% RH |
| Recommended gas / pressure class | R717, R744, R134a — handled by SAQCC Gas registered technicians |
| Equipment platform | Sabroe Industrial compressor packages — SMC/HPC reciprocating and screw packages for ammonia and CO₂ |
| Compliance frameworks | MHSA, SANS 10147, OHS Act, SAQCC Gas registration |
| OEM parts held | Sabroe valve kits, Unisab control boards and oil separators |
| Service deliverable | Parameter backup file and as-programmed schedule |
| Response / lead time | 1–2 days per plant |
| Location hub | Serving Rosslyn Automotive Hub, Rosslyn Industrial Park, Babelegi and surrounds off the N4 / R80 Mabopane Freeway / R566 |
Local context
Working in Rosslyn
We service Rosslyn Automotive Hub, Rosslyn Industrial Park, Babelegi and the surrounding blocks of Rosslyn, Pretoria, with access off the N4 and R80 Mabopane Freeway and R566. Highveld summers push afternoon ambients past 32 °C with heavy thunderstorm humidity, so condensers here are sized with a generous approach and cleaned before every summer.
Bulk air coolers and ice plants for deep-level ventilation Underground heat stress limits shift productivity
Compliance
Documentation you receive
- MHSA
- SANS 10147
- OHS Act
- SAQCC Gas registration
- Parameter backup file and as-programmed schedule
FAQ
Sabroe plc & controller programming in Rosslyn
How fast can a technician service Sabroe equipment at a mining & bulk air cooling site in Rosslyn?
Rosslyn sits on the N4 and R80 Mabopane Freeway and R566, so our Pretoria dispatch reaches most Rosslyn Automotive Hub sites inside a standard callout window. Emergency plc & controller programming runs 24/7 because underground heat stress limits shift productivity.
Do you stock OEM components for Sabroe systems?
Yes — Sabroe valve kits, Unisab control boards and oil separators. Sabroe (Denmark) equipment on R717/R744/R134a charges is supported with the fast-moving spares held at our Pretoria North workshop and non-stock items brought in on OEM order.
What pressure testing and gas compliance certificates are provided?
Every plc & controller programming job closes with a pressure test record and gas handling Certificate of Conformance issued under SANS 10147 by a SAQCC Gas registered technician, plus the MHSA documentation your auditors expect.
What operating envelope do you commission this equipment to?
Mining & Bulk Air Cooling run at +2 °C to +12 °C chilled water at 90–100% RH, with plc & controller programming performed against Full plant control range. Underground heat stress limits shift productivity
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Get started
Schedule an on-site diagnostic in Rosslyn
Tell us what you need cooled and where. We respond with a scoped quote, and for emergencies we dispatch straight away.
- Phone / WhatsApp
- 069 268 0988
- info@reyds.co.za
- Workshop
- 386 Eeufees Street, Pretoria North, Gauteng
- Hours
- Mon–Fri 07:00–17:00, Sat 08:00–13:00. 24/7 emergency breakdown line.