The LES Laboratory Muffle Furnace range is designed with the exacting requirements of the laboratory environment in mind.

• State of the art control systems ensure consistent and reliable results.
• Our tried and tested heating element and refractory designs offer prolonged service life, the LMrange is attractively presented in a lightweight air-cooled cabinet finished in a durable epoxy powder coat which blends into any laboratory environment.
• Maximum temperature: 1200ºC
• Maximum continuous temperature: 1150ºC
• The chamber is manufactured from a 98% Alumina material and is supported by lightweight low thermal mass ceramic brick.
• The bricks are machined to carry spiral elements of Kanthal A1 material.
• The chamber is equipped with a chimney for the removal of any undesirable gaseous contaminants.
• For ashing applications, preheated air can be passed through the chamber and extracted through a large stainless-steel chimney. (Optional extra)
• The removable “hot box” is mounted in a lightweight steel cabinet designed to use convected air to provide a cool outer skin.
• In the interests of the operator, the door moves on a parallel link system and an internal spring counter balance system ensures ease of movement.
• The entire cabinet is subjected to a seven-stage zinc phosphate anti-corrosion treatment and then a durable epoxy powder coat is applied.
• Standard instrumentation consists of a digital set, digital indicate, dual display P.I.D. temperature controller with power limiting facility and the capacity to auto tune P.I.D values to the characteristics of your process.
• This in turn signals a solid state, zero voltage-switching relay, causing minimal interference with other electronic equipment.
• Platinum rhodium thermocouples.
• A completely independent over temperature circuit protects the unit from over firing.
• The unit is supplied in manual reset, which allows the unit to be operated unattended.
• A door switch isolates the elements in the interests of operator safety.
• Various optional extras are available on request.

Due to the continuous development of our products, the goods supplied may vary in detail to that illustrated in this brochure.