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Plastics processing
Versatile and flexible

It would be hard to think of a sector that uses as many variotherm processes for manufacturing and processing as the plastics industry does. Many of the process steps involved in producing plastic – as well as, in particular, the further processing that it must undergo and the manufacture of end products – call for repeated heating and cooling of the material. The processes are so diverse that they cannot all be described here.

However, the list of applications includes both preheating in advance of forming processes and the separation of sprues. By using hot air for deburring, you can dispense with the mechanical cutting tools that are subject to wear and the associated fluctuations in quality. Thermoplastics are brought up to temperature until they become soft and can be shaped. Thermosetting materials must be heated up during primary shaping to enable the cross-linking reaction. In the context of lightweight construction, what are known as "fiber-reinforced composites" are heated across the entire surface or at specific points. In this way, they can be shaped and joined with other components to create highly complex hybrid parts. Welding can be used to create secure connections between several components, thereby increasing their functional density. All these processes require heat, which can be supplied quickly and reliably by Leister hot-air tools.

Leister has the solution
Whether you are looking for air heaters, hot-air blowers, or accessories – Leister's large array of products, coupled with the wide power range, mean that you can choose the optimum equipment for a whole host of plastics processing operations.


LHS Air heater
LHS 15 CLASSIC
Smallest of the LHS Series. Detection of heating element and device overheating with alarm output.
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LHS 15 PREMIUM
Smallest of the LHS Series. Heating power steplessly adjustable with potentiometer.
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LHS 15 SYSTEM
Smallest of the LHS Series. Remote control interface for Leister CSS or SPS temperature controller.
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LHS 21S CLASSIC
Only 67 mm wide. Detection of heating element and device overheating with alarm output.
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LHS 21S PREMIUM
Only 67 mm wide. Heating power steplessly adjustable with potentiometer.
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LHS 21S SYSTEM
Only 67 mm wide. Remote control interface for Leister CSS or SPS temperature controller.
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LHS 21L CLASSIC
Only 67 mm wide. Detection of heating element and device overheating with alarm output.
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LHS 21L PREMIUM
Only 67 mm wide. Heating power steplessly adjustable with potentiometer.
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LHS 21L SYSTEM
Only 67 mm wide. Remote control interface for Leister CSS or SPS temperature controller.
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LHS 41S CLASSIC
Wide array of applications. Detection of heating element and device overheating with alarm output.
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LHS 41S PREMIUM
Wide array of applications. Heating power steplessly adjustable with potentiometer.
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LHS 41S SYSTEM
Wide array of applications. Remote control interface for Leister CSS or SPS temperature controller
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LHS 41L CLASSIC
Wide array of applications. Detection of heating element and device overheating with alarm output.
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LHS 41L PREMIUM
Wide array of applications. Heating power steplessly adjustable with potentiometer.
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LHS 41L SYSTEM
Wide array of applications. Remote control interface for Leister CSS or SPS temperature controller
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LHS 61S CLASSIC
High performance. Detection of heating element and device overheating with alarm output..
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LHS 61S PREMIUM
High performance steplessly adjustable with potentiometer.
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LHS 61S SYSTEM
High performance. Remote control interface for Leister CSS or SPS temperature controller.
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LHS 61L CLASSIC
High performance. Detection of heating element and device overheating with alarm output.
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LHS 61L PREMIUM
High performance steplessly adjustable with potentiometer.
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LHS 61L SYSTEM
High performance. Remote control interface for Leister CSS or SPS temperature controller.
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LHS 91 BASIC
Our most powerful device, with up to 40 kW.
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LHS 91 SYSTEM
40 kW device. Remote control interface for Leister CSS or SPS temperature controller.
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LE Air heater
LE MINI
Smallest air heater. Suitable for where heat application is concentrated to a point.
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LE MINI SENSOR
Smallest air heater with integrated temperature probe. For heat application concentrated to a point.
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LE MINI SENSOR KIT
Smallest air heater with integrated temperature probe and pressure reducing valve. For heat application concentrated to a point.
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LE 5000 DF
Energy savings effect thanks to hot air recirculation. Maximum air inlet temperature 160°C.
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LE 5000 DF-R
Energy savings effect thanks to hot air recirculation. Maximum air inlet temperature 350 °C.
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LE 5000 HT (up to 900 °C)
High temperature air heater up to 900°C. Minimal air volume 600 Nl/min.
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LE 10000 DF
Energy savings effect thanks to hot air recirculation. Maximum air inlet temperature 160°C.
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LE 10000 DF HT (up to 900 °C)
Energy savings effect thanks to hot air recirculation. Maximum air inlet temperature 160 °C.
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LE 10000 DF-R
Energy savings effect thanks to hot air recirculation. Maximum air inlet temperature 350 °C.
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LE 10000 DF-R HT (up to 900 °C)
Energy savings effect thanks to hot air recirculation. Maximum air inlet temperature 350 °C.
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LE 10000 HT (up to 900 °C)
High temperature air heater up to 900°C. Minimal air volume 800 Nl/min.
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Hot-air blower
MISTRAL 2 PREMIUM
Integrated heating element and tool protection, code switch for potentiometer (internal/external).
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MISTRAL 4 PREMIUM
Carbon changer, integrated heating element and tool protection, code switch for potentiometer.
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MISTRAL 6 PREMIUM
Brushless, maintenance-free blower motor. Eminently suitable for continuous operation.
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MISTRAL 6 SYSTEM
Integrated control or external system interface. Brushless, maintenance-free blower motor.
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HOTWIND PREMIUM
Air volume steplessly adjustable with potentiometer up to 900 l/min.
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HOTWIND SYSTEM
Interface with alarm contact and potentiometers for stepless control of heater and blowers.
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VULCAN SYSTEM
The powerhouse of the hot-air blowers. Its performance speaks for itself.
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Blower
SILENCE
Very quiet operation with 61 dB(A). Large air volumes and can be installed in all positions.
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ASO
Conveys 15,900 l/min of air at 60 Hz. Can be used simultaneously for several air heaters with suitable accessories.
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ROBUST
Can be installed in all positions. Indestructible under extreme operating conditions and in continuous operation.
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AIRPACK
Provides large air volumes at high pressure.
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MONO 6 SYSTEM
Impresses with small dimensions and large air volume of up to 600 l/min.
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Control components
FC 2200
Improves hot air processes. Air volume and heating capacity can be adjusted independently of one another.
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FC 550
Improves hot air processes. Air volume and heating capacity can be adjusted independently of one another.
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CSS EASY
Suitable for LHS SYSTEM air heaters.
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CSS
Temperature controller for universal use. For LHS SYSTEM and LE MINI SENSOR air heaters.
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KSR DIGITAL
Suitable for LE 5000 /10,000 HT, LE 5000 / 10,000 DF, LE 5000 / 10,000 DF-R air heaters.
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Three-phase adjustment unit DSE
Three-phase controller. External stepless adjustment of non-electronic air heaters.
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