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Elmatic (Cardiff) Ltd

029 2077 8727

Insulated & guarded Ceramic Knuckle Heater

Insulated & guarded Ceramic Knuckle Heater

Elmatic ( Cardiff ) Ltd are the largest manufacturer of Ceramin Knuckle, manufacturing a large range of heaters for all industries.

Applications

. Injection Moulding, Extrusion, Blow Moulding, Rubber Moulding . Packaging, Test Equipment, Laboratory Equipment . Vacuum Pumps, Shoe manufacturing Machinery . Plastic Process Machinery, Food Process Machinery

Design

Ceramic Knuckle Heaters were developed to meet industry's demand for a long lasting, high temperature heater. Its construction consists of a helically wound resistance spiral, precisely stretched and strung through specifically designed refractory ceramic bricks. The build up of the ceramic brick provides a flexible heating mat, which when placed into a rolled outer metal casing and 4mm thick ceramic fibre insulation, provides an efficient high temperature, high watts density band heater.

Ceramic Knuckle Heaters are capable of reaching temperatures up to 650°C and with its unique flexible design, makes the Knuckle Heater a first choice with most European machinery manufacturers.

Technical Specification Sheath Material S/S 304

Insulation Material Ceramic Insulators - High Temperature

Heat Saving Insulation 4mm thick fibre insulation

Spirals NiCr

Standard Wall Thickness 12.5mm ( ½")

Gap 9.5mm ( 3/8)
Terminations Threaded Terminals

Threaded Terminals with Terminal Box

Ceramic Block

Ceramic Block with Terminal Box

Low Profile Box with leads

Armour Braided Cable

Flexible Metallic Conduit

Glass Fibre Leads (double insulated)

2 Pin or 3 Pin plugs & Sockets

Advantages and Options

Unlike all other types of band heaters Ceramic Knuckle Heaters heat by radiation. When used on Injection Moulding Machine barrels, Knuckle Heaters can be provided with a metal insulation jacket, with 12.5mm ceramic fibre insulation for energy savings of up to 25%, resulting in reduced power consumption, and cooler working conditions.

Used on Extruder barrels, Knuckle Heaters can be provided with a mesh style outer metal casing, leaving air gaps between the ceramic bricks to allow for air cooling, enabling critical extrusion temperatures to be maintained.

Complete units can be manufactured for extrusion machines with outer cowls, inlet and outlet air boxes together with high output blowers/fans. Elmatic was formed in 1949 by two partners, Cyril Hodges and Franz Skalitzky and today the company is still privately owned by their two sons, Alun Hodges and John Skalitzky.

Since 1949 the company has grown steadily, both in terms of turnover and factory size. Today the company employs approximately 160 people and is sited at Cardiff in South Wales in a superbly equipped 45,000 sq. ft. factory.

Elmatic is the largest privately owned heating element manufacturer in the UK and our links with the plastics and rubber industries are second to none. We are the major suppliers to many of the leading OEM's both in the UK and Europe and these close contacts have been responsible for many developments and changes to the manufacturing methods and product performance.

We also specialise in manufacturing for a large variety of Engineering Projects for the Packaging, Pharmaceutical and Catering Industries to name but a few.

The commitment to the future at Elmatic is unparalleled - the very latest CAD/CAM technology and constant improvements in plant and techniques are always being applied to more products, resulting in improved quality and shorter lead times. Our self sufficiency in manufacturing almost all of the components we use serve to create a controllable and responsive customer service. Our commitment to quality is total and all our systems comply with BS EN ISO 9001-9002.

At our head office in Cardiff our experienced Technical Staff are readily available to assist and advise on the most suitable type of heater for any particular application, or should you

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