MUFUS Laboratory Muffle Furnace 1200 °C, 2–36 L

COLO.Science · Heating & Thermal Processing · Muffle furnaces

MUFUS laboratory muffle furnace — 1200 °C, side-sliding door, 2 to 36 L

The MUFUS laboratory muffle furnace series is a range of bench-top furnaces with an energy-saving polycrystalline mullite fibre chamber, alloy wire heating elements and a digital PID controller with fuzzy logic and self-tuning. The furnace reaches up to 1200 °C, heats at up to 20 °C/min and holds the set temperature within ±1 °C. A side-sliding door keeps the space in front of the furnace free for loading crucibles, and the heating switches off as soon as the door opens. Five chamber sizes — 2, 7, 12, 18 and 36 L — cover ashing, loss on ignition, sample preparation and heat treatment in the routine laboratory.

One furnace series for routine ashing and ignition with low energy use

For a MUFUS laboratory muffle furnace, routine work means reaching a temperature, holding it steadily and repeating the same run day after day: total ash, loss on ignition, dry ashing before AAS or ICP-OES. The MUFUS laboratory muffle furnace is built for that work at a low running cost. The polycrystalline mullite fibre chamber has a low thermal mass, so it heats quickly and uses less energy than a brick-lined furnace, and the double shell with an air gap keeps the housing cooler on the bench.

Key characteristics

• Maximum temperature 1200 °C, recommended working range 750–1100 °C.
• Control accuracy ±1 °C, heating rate up to 20 °C/min.
• Polycrystalline mullite fibre chamber — energy-saving insulation.
• Digital PID controller with fuzzy logic, self-tuning and parameter memory.
• Side-sliding door on a lever-and-spring mechanism.
• Safety — heating cut-off on door opening, over-temperature and leakage protection.

Suitable for

• Food, feed and pharmaceutical laboratories — total ash and acid-insoluble ash.
• Cement, soil, sludge, coal and mineral laboratories — loss on ignition (LOI).
• Analytical laboratories — dry ashing before AAS, ICP-OES and heavy-metal determination.
• Metal workshops and material laboratories — annealing, hardening and tempering of small parts.
• Teaching and research laboratories — sintering, calcination and thermochemical analysis.

Why a muffle furnace with a mullite fibre chamber and a sliding door

According to the manufacturer, the polycrystalline mullite fibre insulation needs more than 60 % less energy than a brick-lined furnace of the same size. In the MUFUS laboratory muffle furnace the light lining heats and cools faster, so a working day holds more runs and the furnace is not left on for hours to warm up.

Side-sliding door and door safety switch

On the MUFUS laboratory muffle furnace the door slides to the side on a lever-and-spring mechanism instead of swinging down or out. Crucibles are loaded from the front with tongs, and no hot door leaf stands in the way. A door switch cuts off the heating as soon as the door opens, which protects the operator and the heating elements.

Models and product codes

The MUFUS laboratory muffle furnace series has five chamber sizes. The 2, 7 and 12 L models run on 220 V single-phase; the 18 and 36 L models need a 380 V three-phase connection. Choose the size by the number and size of crucibles per run, and quote and order with the COLO product code.

MUFUS18 and MUFUS36 need a three-phase 380 V connection; the supply circuit is confirmed with COLO.Science before installation.

Installation, qualification and calibration

A MUFUS laboratory muffle furnace needs a stable, non-combustible bench, free space around the housing and ventilation — under an extraction or in a ventilated room when organic samples are ashed. For a long service life the muffle furnace 1200 °C models are used continuously in the 750–1100 °C range, and 1200 °C for short periods.

For regulated laboratories COLO.Science installs the furnace and carries out installation and operational qualification (IQ/OQ) with protocols. The chamber temperature can be checked and calibrated against a reference thermometer placed in the chamber.

Standard delivery

• MUFUS laboratory muffle furnace of the selected size with mullite fibre chamber and digital PID controller fitted.
• Instruction manual.

Crucibles, installation, IQ/OQ and calibration are quoted separately. The delivered configuration for a specific order is the one confirmed in the COLO.Science quotation.

Knowledge base

COLO.Science — methods, applications and practical notes for laboratory equipment.

Selection guide

• A few crucibles per run, method development or teaching? MUFUS2, 2 L.
• Routine ash and LOI series on a standard socket circuit? MUFUS7, 7 L, or MUFUS12, 12 L, on 220 V.
• Large series, bigger crucibles or metal parts? MUFUS18, 18 L, or MUFUS36, 36 L, on 380 V three-phase.
• Method with drying, charring and ignition steps? The MUFU-CA series can be ordered with a 64-segment program controller.
• Housing in a GMP clean area? The stainless steel series MUFU-A·S.
• GMP laboratory? Add installation, IQ/OQ and temperature calibration to the quotation.

Configuration notice

This page is provided for orientation and product selection. It does not replace the binding specification, the delivered configuration, the validation protocol or the acceptance criteria confirmed in the official COLO.Science quotation, proforma invoice or order confirmation. Confirm the chamber size, the supply voltage and any qualification or calibration requirement of the MUFUS laboratory muffle furnace for the specific order. B2B prices are quoted net, excluding VAT.

Sales and support for international customers

COLO Lab ExpertsPolje ob Sotli 4, SI-3255 Buče, Slovenia
Phone: +386 70 713 437 · Email: sales@colo.si · Web: colo.si
We supply laboratories across Europe directly and through partners. B2B prices are quoted net, excluding VAT.

Need help choosing the chamber size?

Send the method or SOP — ashing, loss on ignition or heat treatment — the maximum temperature, the number of crucibles per run and the supply available at the site. COLO.Science will confirm the size of the MUFUS laboratory muffle furnace, the qualification package and the delivery time.