Bock · Johannesburg

Screw Compressor Service for Bock Systems in Seafood Processing & Fisheries | Nasrec

Slide valve, oil separator, filter and bearing service on screw packages. We support Bock open-drive and semi-hermetic compressors running R404A, R717, R744 in seafood processing & fisheries across Nasrec and Nasrec Industrial.

Request a site assessment 069 268 0988 WhatsApp

Technical highlights

SAQCC Gas certified screw compressor service

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

SAQCC Gas registered technicians handling R404A, R717, R744
SANS 10147 pressure vessel and installation compliance
Genuine Bock OEM parts — Bock shaft seals, suction filters and gasket kits
Planned shutdown window to Nasrec, 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

Seafood Processing & Fisheries duty on Bock plant

Plate and blast freezers, ice plants and cold stores

Typical system duty	−40 °C blast to −25 °C hold (−45 °C to +5 °C evaporating)
Design humidity	85–95% RH
Recommended gas / pressure class	R404A, R717, R744 — 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	HACCP, ISO 22000, SANS 10147, 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 Nasrec Industrial and surrounds off the N1 / N12

Local context

Working in Nasrec

We service Nasrec Industrial and the surrounding blocks of Nasrec, Johannesburg, with access off the N1 and N12. 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.

Blast freezing at landing peaks plus ice plant duty Slow freezing forms large ice crystals and ruins texture

Compliance

Documentation you receive

HACCP
ISO 22000
SANS 10147
SAQCC Gas registration
Vibration and oil analysis report

FAQ

Bock screw compressor service in Nasrec

How fast can a technician service Bock equipment at a seafood processing & fisheries site in Nasrec?

Nasrec sits on the N1 and N12, so our Johannesburg dispatch reaches most Nasrec Industrial sites inside a standard callout window. Emergency screw compressor service runs 24/7 because slow freezing forms large ice crystals and ruins texture.

Do you stock OEM components for Bock systems?

Yes — Bock shaft seals, suction filters and gasket kits. Bock (Germany) equipment on R404A/R717/R744 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 HACCP documentation your auditors expect.

What operating envelope do you commission this equipment to?

Seafood Processing & Fisheries run at −40 °C blast to −25 °C hold at 85–95% RH, with screw compressor service performed against −45 °C to +5 °C evaporating. Slow freezing forms large ice crystals and ruins texture

Related services & locations

Get started

Schedule an on-site diagnostic in Nasrec

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.