LHS 21L SYSTEM

  • Accurate readings from integrated temperature probe
  • LED display for precise control
  • Heating output adjustment with potentiometer
  • Remote control via analogue interface
  • Integrated heating element and device protection

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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

Productive Air Heater

The LHS 21L SYSTEM is a step further in the development of the tested and proven line of Leister air heaters for production processes: As with all SYSTEM process heating devices, the LHS 21L SYSTEM features direct connection to a PLC control system and offers system designers and production managers even better control and functionality. The system works in ambient temperatures up to 65 °C (149 °F) and the heating output adjustment is continuously variable up to 650 °C (1202 °F). This can be controlled by a PLC or stand-alone controller via a 4 – 20-mA signal or 0 – 10 V interface.

Decades of experience in plastics machining and industrial processes have also flowed into the development of the LHS 21L SYSTEM. The compact design has a total width of 67 mm (2.64 in) and facilitates integration into production lines with external control systems. In addition, the SYSTEM line of new industrial heating systems features a digital temperature display on the tool itself, enabling immediate control of the nominal heating temperature on-site or as a stand-alone unit.

Technical Data

NAME METRIC IMPERIAL
ARTICLE 140.461 140.461
PHASES 1x 1x
VOLTAGE 230 V 230 V
CURRENT 14 A 14 A
POWER 3300 W 3300 W
MAX. AIR OUTLET TEMPERATURE 650 °C 1202 °F
MIN. AIR FLOW ⓘ 260 l/min 9.18 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 266.0 mm 10.47 in
WIDTH 67.0 mm 2.63 in
HEIGHT 71.0 mm 2.79 in
WEIGHT 0.65 kg 1.43 lb
CONFORMITY MARK CE CE
SAFETY MARK S+ S+
PROTECTION CLASS II II

Highlights

Connection Option To PLC Control Systems

TESTING
Digital Display Of Nominal And Current Values
The SYSTEM display, including the LHS 21L SYSTEM, offers the user precise,
on-demand information on nominal and current temperature values. The integrated thermocouple delivers precise data.

PRECISION
Connections And Potentiometer For Customized Operation
The LHS 21L SYSTEM is suitable for both special integration and controlled,
isolated operation through control and adjustment modes.

PRECISE
Wide Range Of Nozzles And Accessories
Thanks to assembly assistance, connections and adapters including a wide range of nozzles and accessories,
the LHS 21L SYSTEM is ideal for specific user requirements.

Applications

Virtually Unlimited

Downloads

Technical Datasheet
LHS _21L_System_140-461_en
 LHS-21L-SYSTEM_140-461_en.pdf (311 downloads)

Operating Instructions
LHS 15/21/41/61
LHS-15_21_41_61-2.pdf (139 downloads)

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

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