muffle furnace for laboratory

The muffle furnaces L 1/12 – LT 40/12 are the right choice for daily laboratory use. These models stand out for their excellent workmanship, advanced and attractive design, and high level of reliability.

• Tmax 1100°C or 1200°C
• Heating from two sides by ceramic heating plates (heating from three sides for muffle furnaces L 24/11 – LT 40/12)
• Ceramic heating plates with integral heating element which is safeguarded against fumes and splashing, and easy to replace
• Only fiber materials are used which are not classified as carcinogenic according to TRGS 905, class 1 or 2
• Housing made of sheets of textured stainless steel
• Dual shell housing for low external temperatures and high stability
• Flap door can be used as work platform
• Adjustable air inlet integrated in door
• Exhaust air outlet in rear wall of furnace
• Solid state relays provide for low-noise operation
• Defined application within the constraints of the operating instructions
• NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

1. Check the furnace before installation to ensure the whole set is complete. Place the furnace on level ground or table. Avoid collision and keep the controller away from heat to prevent the inside unit is too hot to work. Fill the space between carbon stick and furnace with asbestos ropes.

2. Install the switch on original line to control the whole power. Keep the furnace and controller ground reliably to ensure the equipment operates safely.

3. Space between hole and electro thermal must be filled with asbestos rope. Use the spare wire to connect controller, and make sure the positive pole and negative pole are not reversed.

4. Connect controller to the line and make sure it is correct. Then switch on power and set the temperature as needs. It starts to heating when indicator light is green. Adjust the power to reach the target temperature, and make sure the voltage and electric current are not surpass the rated power.

Ⅴ. Maintenance and attentions

1. If the furnace is new or has been unused for a long time, dry the stove when using it. The operation methods are as follows:

For 1000℃ and 1200℃ furnace,

Room temperature~ 200 ℃ (4hours), then 200℃~600℃(4 hours);

For1300℃furnace,200℃(1hours),200℃~500℃(2hours),500℃~800℃ (3 hours),800℃~1000℃(4 hours)

When low temperature open a bit the door.when the temperature higher than 400℃,should close the door. Don’t open the furnace door while drying, and let it cool down slowly. when using it shall not exceed the max temperature, so as not to burn out the electric heating elements, and it is forbidden to perfusion liquid and easily dissolved metal in the work chamber.The work temperature is better work at lower 50 degrees than the max temperature of the furnace,then the electric heating element has a long life

2. Make sure the relative humidity of environment that the furnace and controller work in is less than 85%, and no dust, explosive and corrosive gas are around furnace; while heating the oily metal material, the volatile gas it releases will corrode electro thermal components and shorten their service life, so try to prevent it while heating.

3. The working temperature of controller should be limited to 5～50℃.

4. Check the furnace regularly according to technical requirements, make sure the joints of controller are well contact, the pointer meter of controller is working normally, and the meter is displaying exactly.

5. Don’t pull up the thermocouple in sudden when it is in high temperature in case of porcelain explosion.

6. Keep the chamber clean, and clear away the residue, such as oxidative material in it.

7. Pay attention to the furnace door, be careful in material loading and unloading.

8. Make sure the carbonic acid material and the electro thermal couple connects tightly. Check the touch plate and screw click regularly.

9. Under the high temperature, the silicon carbon stick will be oxidized by low dissolve carbonate and alkalescency material, such as alkali chloride, soil, heavy metal etc.

10. Under the high temperature, the silicon carbon stick will be oxidized by air and carbonic acid, which will add resistance of silicon carbon stick.

11. Under the high temperature, the vapor will affect the heating part of silicon carbon stick.

12. When the temperature of chlorine or chloride is over 500℃, it will affect the heating components of carbon stick of silicon. At high temperature, the air will decompose the carbon stick of silicon, especially the thin part of the carbon stick of silicon.

1.Service:

a.If buyers visit our factory and check the machine, we will teach you how to install and use the

machine,

b.Without visiting, we will send you user manual and video to teach you to install and operate.

c.One year guarantee for whole machine.

d.24 hours technical support by email or calling

2.How to visit your company?

a.Fly to Beijing airport:By high speed train From Beijing Nan to Cangzhou Xi (1 hour), then we can

pick up you.

b.Fly to Shanghai Airport: By high speed train From Shanghai Hongqiao to Cangzhou Xi(4.5 hours),

then we can pick up you.

3.Can you be responsible for transport?

Yes,please tell me the destination port or address.we have rich experience in transport.

4.You are trade company or factory?

we have own factory.

5.What can you do if the machine broken?

The buyer send us the photos or videos. We will let our engineer to check and provide professional suggestions. If it needs change parts, we will send the new parts only collect cost fee.