Coastal Off-shore Container Refrigeration

We manufacture specialised containers including models for of-shore platform supply and re-supply. The containers are designed to be stocked on shore and then delivered to off-shore platforms on a revolving cycle.

Continuous refrigeration is provided whenever the container is connect to a suitable power supply. The flexible and forgiving capacity of the Heuch Coastal Tricons allows for seamless operation on either 50Hz and 60Hz power supplies from 3442 to 500 volts. This allows the containers to move between the 50Hz shore and platform based power systems to the 60Hz platform supply vessels (PSV) without a hitch.

The Heuch Coastal Tricon containers allows a PSV to stand off a platform during foul weather and await a more suitable window without loss of refrigerated supplies. Once in place on the platform, the container functions as a refrigerated storage facility.

The unit is purpose built to provide user selectable operation for use a a chiller +4°c or a freezer -18°c in ambients up to +40°c. The design features a full reverse cycle defrost system with componentry selected to minimise maintenance requirements and to operate at maximum efficiency at both ends of its operational range.

It is specifically manufactured for an off-shore food / stores transit system and operation in a Hazardous Class 1 Zone 1 Group @B Temp T4 area IP65.

The container shell is built and tested to Lloyds Register of Shipping requirements and certification to the International Maritime Organisation (IMO) MSC/Circ.860 “Guidelines for the approval of off-shore containers handled in open sea” is available.

Heuch’s Coastal Tricon is configured to be inherently stable by careful location of major mass components as close to the deck as possible. This provides for a low centre of gravity which resists toppling when loading and unloading on a rolling tender vessel deck.

Location of critical components well above the base also provides inherent protection against desk wash typically found during PSV operations.

The interior lining of the container is fully seal welded 216 stainless steel which provides corrosion resistant and ease of cleaning. The basic container can be fitted with an array of options to suit the particular characteristics of individual operation requirements. The exterior finish of the standard container is Water Borne Zinc with alternative finishes available on request.

Equipment can be configured upon request in single or multiple zones, one piece or as a split system.

The units can be specified with a 100% cooling unloading capability built into the system. This allows the refrigeration oppressor to run continuously once cooling is selected. This assists in the reduction of transient power fluctuations caused by the stopping and started of the compressor motors which be be useful on weaker or heavily loaded supplies.

All electrical connections between major components utilise rugged disconnect plugs. The coastal triton is a derivative of aa local concept designed and conceived by Defence Force personnel and Heuch engineers to provide a simple, rugged solution for reliable deployment into remote areas.

When placed into storage in standby mode the unit utilises a battery monitoring system to hold the unit ready for immediate action.

The shell may be constructed from a variety of materials and is suitable for air transportation in stand alone configuration and may also be carried by approved slings under suitable aircraft.

When suitable power supply is connected the Coastal Tricon may be operated whilst mounted on the rear of wheeled transport or statically when mounted for base area operations or sea transportation.

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Containerised Drive Chiller

This Containerised Drive Chiller unit was provided to Västmanland, SWEDEN for a Drive Cooling application at a mine site in Rampura Agucha Province India in 2014.

The Heuch ISO-HABB Drive Chiller range is engineered to provide variable cooling capacity to water-cooled drives and heat exchanger assemblies.

The Drive Chillers are supplied as a packaged system for easy turnkey installation. The air-cooled refrigerated units consist of all equipment, instrumentation and auxiliary components required for safe and functional operation.

The Heuch units are of a robust design and utilise R-134a high temperature refrigerant and lubricating oils for efficient operation in high ambient environments. The chillers integrally manufactured into a CSC Plated ISO Container construction that offers ease of international shipping movements and protection from extreme weather elements.

The units are individually controlled and monitored by an ABB PLC based temperature and safety control system with onboard PROFIBUS™ and are electrically compliant to operate in high temperature conditions

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Hazardous Area Compressor

The Heuch DM12911 Hazardous Area Compressor Range, DM12911 01-12, are a series of 12 reciprocating compressor and electric motor variants, directly coupled within a sealed cast iron housing. The compressors are certified under Certificate of Conformance ITA 13.0020X for use in Ex px, Zone 1, Group IIC, T3 applications. The compressors are certified under the IECEx international standard by TÜV Rheinland Australia Pty. Ltd.

Based on the BITZER OCTAGON and ECOLINE series of compressors, the Heuch DM12911 offers proven reliability and performance of one of the biggest names in the industry.

The compressors are painted with a high quality, hard wearing industrial polyurethane paint and external fittings & labels are 316 Stainless Steel. This along with an IP67 rating allow the units to survive in harsh industrial environments.

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Middle East Water Chiller

In 2005 and then again in 2009 HEUCH PTY LTD were asked to build water chillers for Furnace applications in the Middle East. This process involved cooling de-mineralised water in the chiller for use in cooling electronics. This application required the highest quality components to prevent any contamination of the sensitive electronics and the chiller had to be built to survive one of the hottest climates in the world.

Contained within the chiller were the following components


316 Stainless Steel

Process Pump

Multi Stage Electrically driven centrifugal pump with a three phase, two pole, fan cooled squirrel cage motor. The pump was also made of stainless steel to an IP 55 enclosure rating and class F Insulation rating.

Buffer Tank

A Small stainless steel buffer tank was located on the process water return line. This tank stabilises thermal fluctuations of the cooling water, ensures consistent flow through the heat exchanger as well as aiding control of particulate contaminants in the water system.

Heat Exchangers

Multiple Stainless Steel plate heat exchangers were chosen to transfer heat between the refrigeration and cooling water circuits. Multiple circuits allow a variable cooling load providing a superior control of the process temperature.


The compressors are 4 cylinder reciprocating, single stage, semi-hermetic type.  A number of safety switches are built into the compressor. In addition vibration eliminators are fitted to the discharge pipework to reduce noise.


The condenser coil block was made out of copper tubes that are expanded into copper fins to increase the heat transfer area.


The unit is controlled with a PLC that includes a front panel mounted display monitor. This allows the user to control the system. It can also be controlled remotely if that is deemed necessary.

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Middle East Pump & Tank Skid

In 2009 HEUCH PTY LTD built a Pump and Tank Skid to match the water chiller for the Middle East project. This pump skid used sea water to cool down the cooling water for a furnace application. To resist the harsh corrosive environments created by sea water AISI 316 Stainless steel and titanium were chosen for the components.

The main components within the cooling water pump skid were:

The skid was fitted with 2 electrical, multistage centrifugal non self-priming pumps. These were fitted with Siemens motors and mechanical shaft seals. They were enclosed to an IP55 rating and insulated to Class F.

Plate Heat Exchangers
The skid contained titanium heat exchangers. This allowed good heat transfer between the furnace and the Sea Water while providing the necessary durability

Strainers were located in the furnace return line. This catches the unwanted system particles and debris.

Expansion Tanks
An expansion tank is placed into the system to allow for thermal expansion of the process fluid due to temperature fluctuations in the system.

Dosing Pot
This is used to dose the system with biocides and inhibitors to minimize the propagation of bacteria and to reduce corrosion and scale

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Cool Room for Hazardous Goods Facility

In 2010/2011 Heuch was asked to build a cold storage facility for a major hazardous facility (MHF) in Altona. As a major hazardous facility, this site faced considerably stricter safety standards and operating protocols than a commercial facility. This presented extra design challenges to the Heuch engineers.

Some of the challenges faced included:

  • All electrical equipment must be classified to a Zone 1 hazardous area level,
  • The cool room required a hoist with the ability to move heavy products inside the room. To minimise the risk of sparks potentially igniting an explosive atmosphere, an air driven pneumatic hoist was chosen,
  • Fire extinguisher and spillage clean up materials must be located within 10m of the facility,
  • A new safety shower within 10m of the main room,
  • A bunded plant area sufficient to cater for a leakage of all goods within the facility was required,
  • 3m exclusion zone from the bund.

A welded steel, galvanised structure was installed to support the cool room panels, carry the fan/coil cooling units and the two monorails that would be used for lifting the cylinders. This structure was fitted with Kingspan panels. These panels were exposed to the local environment and the roof was sloped so that rainwater drained away from the coolroom and no pooling of rainwater occurred.

The air-cooled refrigeration equipment was placed in a custom built colorbond room located outside the bund area. A Form 1 electrical cubicle was located inside this room and also rated to both an IP65 standard and to operate in a hazardous environment. The control of the coolroom conditions is by an operator interface panel located inside this room.

A preventative programmed maintenance schedule was implemented with 3 monthly non-invasive inspections and annual pre-summer services.

A comprehensive dossier was provided at the completion of the project including operating and maintenance manual, MSDS for refrigerant and lubricants, hazardous component certificates, wiring, P.I and general arrangement drawings.

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