Designed & manufactured in Great Britain
+44 (0) 1443 813500 sales-uk@hotset.com

Keep useful heat in the process

REDUCE HEAT LOSS.
IMPROVE EFFICIENCY.

Hotset insulation jackets are designed for injection moulding, extrusion and other industrial applications where heat retention is important.

The jackets fit around heated barrels and process components, creating a removable insulating layer between the hot machinery and the surrounding working environment.

Each jacket can be manufactured around the dimensions and physical features of the machine, including suitable openings for thermocouples, pressure transducers and adjoining equipment.

Made for the installation

Supply the barrel dimensions, photographs and the positions of heaters, cables, sensors, guards and other obstructions. We can use this information to design the required jacket sections.

Why insulate?

CONTROL WHERE THE HEAT GOES

The actual improvement depends upon the machine, temperature, operating cycle and existing insulation, but reducing uncontrolled heat loss can provide several practical benefits.

Reduced heat loss

Helps retain useful heat around the barrel instead of releasing it directly into the surrounding workplace.

Energy efficiency

Reducing heat loss can lower the energy required to maintain operating temperature.

Improved start-up

Retaining heat around the process may help the machine reach operating temperature more efficiently.

Reduced exposed heat

The insulated cold face reduces exposure to the high temperature of the barrel beneath it.

Removable construction

Stainless-steel hook-and-loop fastening allows the jackets to be removed for maintenance and refitted afterwards.

Bespoke cut-outs

Openings can be incorporated around sensors, transducers, connections and machine features.

Layered construction

DESIGNED FOR
THERMAL MANAGEMENT

The jacket combines a durable outer face, high-temperature inner materials and a thermal insulation blanket.

Outer cold face

PTFE-coated glass cloth provides a practical outer surface that can be wiped clean following oil or plastic spillage.

Inner hot face

Calcium-silicate and vermiculite-treated silica cloth is used on the side facing the heated machinery.

Insulation blanket

A low-biopersistent Insulfrax fibre blanket provides the principal thermal-insulation layer.

Secure fastening

Stainless-steel hook-and-loop fastening provides a removable and reusable method of securing the jacket.

Thickness options

Available in nominal thicknesses of 12 mm, 25 mm and 38 mm.

Segmented jackets

Larger installations can be divided into individual jacket sections for easier handling and maintenance access.

Typical applications

WHERE THEY ARE USED

Insulation jackets can be manufactured for cylindrical and application-specific heat-retention requirements.

Injection moulding barrels

Removable insulation around heated machine-barrel zones.

Extrusion machinery

Heat retention around extrusion barrels and associated process equipment.

Tools and dies

Application-specific insulation for heated profiles, tools and dies.

Material hoppers

Removable insulation around suitable injection-moulding hoppers and cylindrical equipment.

Published construction details

MATERIAL AND
SIZE OPTIONS

Material temperature ratings describe the individual constituent materials. The suitability and safe operating limit of a complete jacket must be confirmed against its construction and actual application.

Minimum stated diameter

Jackets are available from a minimum nominal diameter of 50 mm.

Minimum stated width

Jackets are available from a minimum nominal width of 30 mm.

Material temperature capability

a 260°C continuous rating for the PTFE-coated cold face, 1000°C unstressed continuous for the hot-face cloth and 1200°C for the Insulfrax blanket.

Preparing an enquiry

WHAT DO WE
NEED TO KNOW?

Accurate dimensions and clear photographs help us divide the installation into practical, removable jacket sections.

Important consideration

EVERY OPENING MATTERS

Thermocouples, pressure transducers, heater cables, supports and machine junctions affect how the jacket must be divided and fastened. Photographs and accurate positions help prevent a jacket from obstructing essential components.

Discuss your installation →
Need insulation jackets?

SEND US YOUR DIMENSIONS.

Provide the barrel dimensions, temperature, photographs and positions of all sensors, cables and obstructions.

Request a quotation →