Why You NEED JIPL for Heating and Cooling
JIPL is at the forefront of technological innovations worldwide and has expert experience spanning a wide range of industries. JIPL’s specialist knowledge includes years of experience in heat transfer using moving air for both heating and cooling systems.
Many manufacturing processes require the use of heating and cooling to ensure effective drying, appropriate heat treatment, chemical curing, or bonding. There is such a huge variety of ovens, furnaces, cooling plants etc. available today and knowing what the best option is for operating your process efficiently, can be a daunting task. An efficient oven process takes specialist knowledge to get right: detailed and sometimes complex calculations are required to ensure that specific objects can be heated or cooled to suit the materials involved or the production rate required.
At JIPL we utilize our expert knowledge in air transfer systems to design and build driers, ovens, and coolers, to every client’s individual and specific requirements. We design long-lasting, quality plant, and ensure that processing is achieved with the maximum production efficiency and for the minimum energy and maintenance costs. Often cooling plants are required at the end of the oven to maximise production efficiency and minimise space requirements.
JIPL’s expertise is to utilize the most effective and efficient airflow technology based on understanding the heat transfer requirements specific to each product. This means providing a known quantity of air at a known temperature to maximize heat transfer to each specific product.
The velocity and direction of the airflow over each product are crucial in maximizing effective heat transfer, and thus each process requires a knowledge of not only the product materials but also its specific heat and conductivity to enable the optimum transfer method to be determined.
JIPL were the first to bring this innovative air transfer technology in both the heating and cooling fields to NZ. Examples are given below of different techniques for specific applications.
JIPL’s in-house 3-D modelling, engineering capability, and over 50 years’ combined experience of industrial heat transfer systems, ovens, and process engineering means we give our customers exactly what they need – at low operating costs.
JIPL’s Recent Heat Transfer Projects:
The following examples provide examples of how JIPL have solved specific processing requirements using moving air as the heat transfer medium. The air flow techniques differ considerably and were designed based on first principle calculation to achieve the most efficient and effective heat transfer method for each application.
JIPL redesigned and rebuilt the metal tile curing oven for Metalcraft. Airflow methods to achieve consistent and even heat transfer for the pre-heat, curing, and cooling sections were designed to provide the most efficient and fastest processing for each requirement.
The project included stripping back the existing curing oven to its base frame, building a new heater box, installing new circulation fans and ducting to create a pre-heat zone, a curing zone, and a cooling zone. Safety provision included pressure relief panels in the heater box, ‘fail to-safety’ interlocks, and a certified suction type burner and gas line.
For Pacific Coilcoaters JIPL designed, installed and commissioned a highly-efficient in-line drying oven. JIPL utilized a specific airflow and heat transfer approach for high-speed coil processing for the new drying unit to meet all the requirements necessary for a high-quality outcome. The oven operates at a considerably lower temperature (and thus much lower costs) than the original oven.
INEX Extrusions have used JIPL for both heating and cooling projects. 
Originally JIPL designed and built the aluminium extrusion ageing oven for their new plant using airflow techniques developed in-house to maximize heat transfer independent of the extrusion profile.
More recently, JIPL modified INEX’s original, ageing oven to cater for an additional 50% capacity. To achieve this JIPL re-designed the airflow system and extended over the Christmas shutdown. This required extending and modifying existing ducting, installation of new ducting; and airflow commissioning.
Not only has the upgraded and extended oven solved the capacity issue, but it now also produces consistent ageing results throughout the oven, with a small increase in the aged hardness of the extrusions.
JIPL are the experts in air transfer technology in both heating and cooling
Following the success of this project, INEX requested JIPL improve the extrusion run-out cooling system. Based on detailed heat transfer calculations, the JIPL team proposed a modular under-table cooling system to fit under the existing run-out conveyor system. The technique provides rapid and very efficient cooling of the extrusions (from 480oC to below 250oC) and enables the removal of both the overhead system and the multitude of fans around the run-out and walking tables.
The JIPL design consists of modular units designed to be installed, progressively along the run-out table. JIPL have installed their first unit and are in the process of rolling out the rest of the project – due to the proven success of the first module.
For Temperzone JIPL recently replaced their existing old powder coating plant and designed and supplied a new, fully automated plant which includes heated chemicals and both drying and curing ovens. The heat transfer requirements for drying and curing are totally different, so specific airflow techniques were used to provide effective and efficient processing.
JIPL undertook the full design, project management, installation, supervision, and commissioning services for the complete powder coating plant including the supply of a power and free overhead conveyor and a complete SCADA package.
For Era Polymers JIPL recently designed, built, installed and commissioned a highly efficient, insulated hotbox-type batch
oven for holding drums of product at a constant temperature. Era Polymers turned to JIPL because they wanted a reliable, energy efficient, and maintenance free batch oven that would handle even their busiest of times. The airflow and heat transfer for achieving even heat distribution to the stacked drums was designed based on JIPL’s knowledge of heat transfer via moving air.
JIPL’s Unique Oven Design
With their expertise in heat transfer, JIPL also considered the overall requirements of the processing ovens, including expansion/contraction, standing heat losses and ease of construction. With the assistance of a TechNZ Grant, JIPL developed its unique modular oven design.
The modular oven provides an affordable, high-quality option for a wide range of clients from a variety of industries both in NZ and particularly for export.
JIPL implements a cost-effective, innovative approach in the way ovens are physically constructed. The result is an extremely ‘low heat loss’ oven utilising common, precision-made components.
JIPL’s oven concept features an interlocking, insulated panel system which incorporates integral structural supports, all internal ducting, roof explosion relief panels and insulated floor. The concept is also designed to incorporate JIPL’s highly effective, dual-action air-seals.
The design means that most components can be flat-packed, providing a major reduction in transport and export costs. A major feature of precision manufacturing is oven construction quality and its sustainability – the oven can be taken apart and rebuilt, or modified, allowing flexibility for future growth or change of premises.
However, JIPL’s ovens are tailor-made to suit each client’s processing requirements, and the manufacturing, installation and operating costs have been significantly reduced.
JIPL air transfer technologies provide major savings in energy and gas usage. A heat transfer system (be it an oven or cooling plant) that is properly designed, quality manufactured, and properly installed, requires minimal maintenance. JIPL also design, provide and supply a large variety of industrial process plant and system including full control systems with SCADA. In addition JIPL design and provide specialist equipment for wastewater treatment.