Bock · Johannesburg

Screw Compressor Service for Bock Systems in Refrigerated Transport Fleets | Modderfontein

Slide valve, oil separator, filter and bearing service on screw packages. We support Bock open-drive and semi-hermetic compressors running R404A, R134a in refrigerated transport fleets across Modderfontein and Modderfontein Industrial.

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Technical highlights

SAQCC Gas certified screw compressor service

SANS 10147 pressure and gas compliance, genuine Bock OEM parts and rapid dispatch to Modderfontein.

SAQCC Gas registered technicians handling R404A, R134a
SANS 10147 pressure vessel and installation compliance
Genuine Bock OEM parts — Bock shaft seals, suction filters and gasket kits
Planned shutdown window to Modderfontein, Johannesburg

Common maintenance vectors

What we find on these systems

Slide valve feedback drift
Coalescer saturation
Bearing wear against running hours
Shaft seal weep on open-drive units
Belt misalignment on transport and skid packages
Suction strainer blockage after a burnout

Dynamic specifications

Refrigerated Transport Fleets duty on Bock plant

Trailer and body units, workshop servicing and dock interfaces

Typical system duty	−25 °C to +8 °C (−45 °C to +5 °C evaporating)
Design humidity	80–90% RH
Recommended gas / pressure class	R404A, R134a — handled by SAQCC Gas registered technicians
Equipment platform	Bock Open-drive and semi-hermetic compressors — HG/HA series semi-hermetic and FK open-drive transport compressors
Compliance frameworks	SANS 10147, SAQCC Gas, HACCP, SAQCC Gas registration
OEM parts held	Bock shaft seals, suction filters and gasket kits
Service deliverable	Vibration and oil analysis report
Response / lead time	Planned shutdown window
Location hub	Serving Modderfontein Industrial and surrounds off the N3 / R25

Local context

Working in Modderfontein

We service Modderfontein Industrial and the surrounding blocks of Modderfontein, Johannesburg, with access off the N3 and R25. 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.

Transport units cycling under road vibration and ambient swings Trailer failure in transit writes off a full load

Compliance

Documentation you receive

SANS 10147
SAQCC Gas
HACCP
SAQCC Gas registration
Vibration and oil analysis report

FAQ

Bock screw compressor service in Modderfontein

How fast can a technician service Bock equipment at a refrigerated transport fleets site in Modderfontein?

Modderfontein sits on the N3 and R25, so our Johannesburg dispatch reaches most Modderfontein Industrial sites inside a standard callout window. Emergency screw compressor service runs 24/7 because trailer failure in transit writes off a full load.

Do you stock OEM components for Bock systems?

Yes — Bock shaft seals, suction filters and gasket kits. Bock (Germany) equipment on R404A/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 screw compressor service 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 SANS 10147 documentation your auditors expect.

What operating envelope do you commission this equipment to?

Refrigerated Transport Fleets run at −25 °C to +8 °C at 80–90% RH, with screw compressor service performed against −45 °C to +5 °C evaporating. Trailer failure in transit writes off a full load

Related services & locations

Get started

Schedule an on-site diagnostic in Modderfontein

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
Email: 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.