LHS 21S SYSTEM

  • Patented heating element protection
  • Device overheating protection
  • Fully integrated control electronics
  • Cost-effective
  • Integration in existing control system

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Industrial Hot Air Devices

Leister hot air tools are used in countless industrial production processes. In fact, there are very few industries that do not benefit from our versatile offerings, regardless if the process only operates with hot air or if it becomes more efficient with hot air. Leister has the right blower for every production line.

Details

Innovative, System-Compatible Air Heater

The LHS 21S SYSTEM air heater features integrated power electronics, enabling continuously variable air temperature adjustment, which renders external power control (e.g. semiconductor relay) unnecessary. Regulation via a remote control is also an option with an electroplated separate 4 – 20 mA interface as a controller, PLC (Programmable Logic Controller) or external potentiometer. The integrated device and heating element cover offers reliable protection against damage to the air heater from excessively high temperatures.

An additional alarm contact on the LHS 21S SYSTEM ensures high process safety during continuous use. Leister’s SYSTEM air heaters feature an integrated thermocouple for improved precision and an LCD display for target/current temperatures in controlled operation. The LHS 21S SYSTEM is optimized for a range of applications in industrial production lines, including separating and fusing synthetic fibers and fabrics, welding thermoplastics and soldering processes on thin sheet metal parts and many other areas.

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Voltage Power
120 V 1000 W / 2000 W
230 V 1000 W / 2000 W

Technical Data

NAME METRIC IMPERIAL
PHASES 1x 1x
VOLTAGE 120 - 230 V 120 - 230 V
CURRENT 4.5 - 17.0 A 4.5 - 17.0 A
POWER 1000 - 2000 W 1000 - 2000 W
MAX. AIR OUTLET TEMPERATURE 650 °C 1202 °F
MIN. AIR FLOW ⓘ 80 - 160 l/min 2.82 - 5.65 cfm
MAX. AIR INLET TEMPERATURE 65 °C 149 °F
MAX. AMBIENT TEMPERATURE 65 °C 149 °F
AIR TEMPERATURE CONTROL Closed loop Closed loop
OVERHEATING PROTECTION Yes Yes
ALARM OUTPUT Normally open contact Normally open contact
MAX. INLET PRESSURE 100 kPa 14.5 psi
NOZZLE CONNECTION Ø 36.5 mm / 1.45 in 36.5 mm / 1.45 in
DISPLAY Yes Yes
INTERFACES 4-20mA; 0-10V 4-20mA; 0-10V
LENGTH 236.0 mm 9.29 in
WIDTH 67.0 mm 2.63 in
HEIGHT 71.0 mm 2.79 in
WEIGHT 0.55 kg 1.21 lb
CONFORMITY MARK CE CE
SAFETY MARK S+ S+
PROTECTION CLASS II II

Highlights

Sophisticated Digital And Analogue Features

MAINTENANCE-FRIENDLY
Reliable Heating Element
The durable heating element features an integrated and patented heating element protection system,
preventing the device from overheating.
The component can also be replaced quickly and easily if any damage occurs.

PRECISE
Integrated Thermocouple
Thanks to the air heaters integrated thermocouple, the heating output
can be precisely monitored on all SYSTEM devices.

USER-FRIENDLY
LED Display
The LHS 21S SYSTEM’s digital display enables precise control of the current and nominal temperature.
The target capacity value is also displayed as a % in control operation.

Applications

Virtually Unlimited

Downloads

Operating Instructions
LHS 15/21/41/61
LHS_15_21_41_61-1.pdf (94 downloads)

General Catalogue
Process Heat – US
Process-Heat-US.pdf (1449 downloads)

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