Home | Cortek (2025)

Keep it flowing

Cortek provides specialised engineering and project management services for the New Zealand dairy processing industry.

We enable our clients to upgrade and expand with minimal disruption to day-to-day operations.

Operation-ready projects

• new hygienic processes
• upgrades to existing processes
• CIP systems and chemical recovery
• services requirements, design and analysis
• service generation plants
• distribution networks
• point cloud scanning and 3D modelling
• optimisation and problem solving

Our offering includes:

• a detailed understanding of client scope needs
• design reviews, HAZOP and SID processes
• cost control and timeline management
• clear communication from start to finish
• comprehensive handover, training and support

We’ve been working with the New Zealand dairy processing industry for 30 years. We understand what’s required and we know what’s at stake.

Avoid budget blowouts

All project costing, materials and services contractor management and overall financial control of each project is overseen at senior level by Serena Roberts, company director and CA.

Sound financial control

Minimise delays and disruptions

Off-site manufacturing, modular design approach and smart tech tools such as PointCloud allow us to engineer solutions while production continues. Our own hygienic steel fabrication capability gives us tight control over manufacturing timelines.

Production continuity

Get the optimal solution

Cortek is an independent, New Zealand owned company with a high level of transparency and accountability. While we work with the same services and equipment providers as others in our industry, we are free to pick those that best serve our clients' needs.

If there’s a better way, we’ll find it.

Successful partnerships

Cortek have been engaged by fresh milk processors, milk powder, butter, protein, UHT, and cheese plants, and FMCG manufacturers to solve a range of problems and challenges:

• integrate new and existing plants
• reduce manual handling of hazardous chemicals
• improve efficiency of existing plants
• design of steam supply systems
• recover / re-use process water and CIP chemicals
• reduce waste / environmental compliance
• reduce energy use / maximise asset utilisation
• achieve HSNO compliance

Latest technology milk separation plant and cleaning system

We’ve worked with industry leaders such as Fonterra, Synlait, Westland Milk Products, Oceania, Goodman Fielder, Open Country Dairies and Mataura Valley Milk. Our projects include:

New milk separation plant

Engineering design and install of a 70 cubic metres per hour separation plant and associated services, including new milk separators, heat exchangers, skim and cream storage silos, plus a new re-use CIP kitchen.

Rail pod loading and CIP

Upgrade of the rail transportation system to accommodate the new pod/wagon configuration and improve the CIP system. Extensive design and modelling optimised the rail siding configuration at both the supply and receiving sites. Construction to house the new system. The site remained operational during the project.

New ammonia plant and HTHP

New ammonia plant and 1 MW high-temperature heat pump system in new plant room building. Primary and secondary glycol and hot water tanks integrated with existing plant, and upgrades to site distribution for glycol, chilled and hot water.

Chemical handling upgrade

Three new bulk chemical tanks and a chemical tanker unload bay located within a new hazardous storage area on the client site. Designed to minimise manual handing operations associated with current IBC use.

New 1.1 MW chiller plant

A key services infrastructure project to ensure sufficient chilled water capacity. It included supply and installation of a 1100kW ammonia chiller system and cooling tower, along with construction of a building to house the new system. The site remained operational during the project.

Milk station upgrade

Service load demand analysis, design and install of all new services required for a new UHT plant, including a 10 bar steam network, glycol network distribution and increased cooling water capacity, increased water storage and distribution lines, air supply, and new chemical storage and delivery systems.

Hygienic milk/ingredient storage integration

Milk Transfer by Rail
and CIP thereof

An established network of equipment and service suppliers

Always ready to talk engineering

If you’d like a deeper understanding of our capability, your first point of contact should be Managing Director, Steven Roberts

EMAIL US

Qualified and experienced

Our team of engineers and project managers includes next-gen honours graduates with years of real-world experience.

Steven Roberts

MANAGING DIRECTOR

BE Mech (Hons), Dip Dairy Sci & Tech, Dip.Hum (Japan)

Serena Roberts

FINANCIAL DIRECTOR

CA, Bachelor of Business

Tracy Crossland

QSE MANAGER

BE Chemical & Process (Hons)

Beth Te Aika

PROJECT MANAGER

BE Chemical & Process (Hons)

James Liddell

PROJECT MANAGER

BE Chemical & Process (Hons)

Patrick Purser

PROJECT MANAGER

BE Chemical & Process (Hons)

Kyle Fearn

SENIOR PROJECT ENGINEER

BE Chemical & Process (Hons)

James Robertson

PROCESS ENGINEER

BE Chemical & Process (Hons)

Liam Johnston

PROCESS ENGINEER

BE Chemical & Process (Hons)

Ale Linares

PROCESS ENGINEER

BE Chemical & Process (Hons)

Michael Moynihan

PROCESS ENGINEER

BE Chemical & Process (Hons)

Mya Plotkin

PROCESS ENGINEER

BE Chemical & Process (Hons)

Keep it flowing

Cortek provides specialised engineering and project management services for the New Zealand dairy processing industry.

We enable our clients to upgrade and expand with minimal disruption to day-to-day operations.

Operation-ready projects

• new hygienic processes • upgrades to existing processes • CIP systems and chemical recovery • services requirements, design and analysis • service generation plants • distribution networks • point cloud scanning and 3D modelling • optimisation and problem solving

Our offering includes:

• a detailed understanding of client scope needs • design reviews, HAZOP and SID processes • cost control and timeline management • clear communication from start to finish • comprehensive handover, training and support

We’ve been working with the New Zealand dairy processing industry for 30 years. We understand what’s required and we know what’s at stake.

Avoid budget blowouts

Sound financial control

Minimise delays and disruptions

Production continuity

Get the optimal solution

If there’s a better way, we’ll find it.

Successful partnerships

Cortek have been engaged by fresh milk processors, milk powder, butter, protein, UHT, and cheese plants, and FMCG manufacturers to solve a range of problems and challenges:

Latest technology milk separation plant and cleaning system

We’ve worked with industry leaders such as Fonterra, Synlait, Westland Milk Products, Oceania, Goodman Fielder, Open Country Dairies and Mataura Valley Milk. Our projects include:

New milk separation plant

Engineering design and install of a 70 cubic metres per hour separation plant and associated services, including new milk separators, heat exchangers, skim and cream storage silos, plus a new re-use CIP kitchen.

Rail pod loading and CIP

New ammonia plant and HTHP

New ammonia plant and 1 MW high-temperature heat pump system in new plant room building. Primary and secondary glycol and hot water tanks integrated with existing plant, and upgrades to site distribution for glycol, chilled and hot water.

Chemical handling upgrade

Three new bulk chemical tanks and a chemical tanker unload bay located within a new hazardous storage area on the client site. Designed to minimise manual handing operations associated with current IBC use.

New 1.1 MW chiller plant

A key services infrastructure project to ensure sufficient chilled water capacity. It included supply and installation of a 1100kW ammonia chiller system and cooling tower, along with construction of a building to house the new system. The site remained operational during the project.

Milk station upgrade

Hygienic milk/ingredient storage integration

Milk Transfer by Rail and CIP thereof

An established network of equipment and service suppliers

Always ready to talk engineering

If you’d like a deeper understanding of our capability, your first point of contact should be Managing Director, Steven Roberts

Qualified and experienced

Our team of engineers and project managers includes next-gen honours graduates with years of real-world experience.

• new hygienic processes
• upgrades to existing processes
• CIP systems and chemical recovery
• services requirements, design and analysis
• service generation plants
• distribution networks
• point cloud scanning and 3D modelling
• optimisation and problem solving

• a detailed understanding of client scope needs
• design reviews, HAZOP and SID processes
• cost control and timeline management
• clear communication from start to finish
• comprehensive handover, training and support

Milk Transfer by Rail
and CIP thereof