Muffle
Muffles are essential laboratory furnaces used for high-temperature applications such as ashing, heat treatment, and material testing. These devices provide precise temperature control within a sealed heating chamber, ensuring uniform heat distribution while protecting samples from contamination and direct flame exposure. The versatility of muffles makes them indispensable across chemical, pharmaceutical, and material science laboratories worldwide.
Our selection of muffles offers various capacities and temperature ranges to accommodate different laboratory requirements. Typically made from durable materials like stainless steel and insulated with refractory bricks, muffles maintain stability and energy efficiency. Their applications extend from sterilizing instruments to testing samples under controlled thermal conditions, showcasing their importance in both research and industrial environments.

What You Need to Know Before Choosing a Muffle and Making an Investment
Key Factors to Consider
When selecting a muffle furnace, it is crucial to evaluate factors such as maximum operating temperature, temperature uniformity, and chamber size. Adequate insulation material must be considered to ensure energy efficiency and maintain steady heat without fluctuations that could damage samples or skew test results.
Safety features and ease of control interface also play key roles in the choice of a muffle. Depending on your laboratory operations, you might require muffles with programmable controllers or automatic shut-off functions to comply with safety regulations and reduce risk of overheating or user error.

Price Range in the Market
Price ranges for muffles vary based on size, temperature capability, and included technologies. Basic units suitable for general lab use may start at moderate prices, while advanced models with digital controls and enhanced insulation can command premium rates.
Additional costs to consider include shipping, installation, and potential maintenance contracts. Understanding the full financial scope beyond the purchase price is necessary for budgeting and ensuring long-term support for your muffle furnace.

Quality-Price Relationship
Investing in a quality muffle might mean a higher upfront cost but typically translates into better performance, reduced energy consumption, and lower maintenance needs over time. The quality-price ratio is favorable when reliability and safety are prioritized.
Choosing a muffle from a reputable manufacturer like Kalstein ensures access to rigorous quality standards and customer support, which are vital to preserving equipment integrity and protecting your investment against faults and breakdowns.

Expected Lifespan Based on Use and Maintenance
The expected lifespan for muffles depends chiefly on operational conditions and maintenance routines. Regular calibration, cleaning of internal surfaces, and avoiding thermal shocks significantly extend service life, sometimes exceeding a decade in well-managed laboratories.
Proper ventilation, keeping refractory bricks intact, and timely replacement of worn parts are essential maintenance tasks to prevent premature failure and maintain consistent heating performance throughout the equipment’s lifetime.

KALSTEIN MUFFLES
Among many products, at Kalstein you can find the ideal muffle for your laboratory
If you’re unsure about which muffle to buy, we offer expert advice and a comprehensive range of models designed to meet diverse laboratory needs. Whether you require high-temperature precision or energy-savings, our Kalstein muffles combine performance and durability, ensuring your investment delivers lasting value.

Atmosphere Furnace YR06668
The Atmosphere Controlled Furnace YR06668 is a high-performance box-type furnace with a 36-liter capacity. It is specifi…

Muffle Furnace YR06648
The YR06648 Muffle Furnace is a high-temperature thermal treatment unit designed for laboratory and industrial applicati…

Controlled Atmosphere Muffle Furnace YR06618// YR06621
Controlled Atmosphere Muffle Furnace is a high-precision piece of equipment designed for advanced thermal processes in l…

Laboratory Muffle Furnace YR05284-1
The Laboratory Muffle Furnace YR05284-1 is an advanced device crafted to fulfill the stringent demands for precision and…
Our muffle most sold
The Atmosphere Controlled Furnace YR06668 is a high-performance box-type furnace with a 36-liter capacity. It is specifically designed for advanced thermal processes where an oxygen-free environment is critical, allowing for work under inert atmospheres such as Nitrogen, Argon, or Helium. It is the ideal tool for materials science laboratories and metallurgical plants seeking extreme precision up to 1300°C in continuous use.
Can it be used with regular air? Yes, the furnace can operate as a conventional muffle furnace or under a controlled atmosphere. What maintenance is required? Primarily inspecting the door seals and cleaning the Silicon Carbide (SiC) heating elements. Does it come ready to use? Yes, it includes standard accessories such as thermal gloves, crucible tongs, and a user manual.
| Model | YR06668 |
| Max. Temperature (C) | 1400 |
| Continuous Temperature (C) | 1300 |
| Capacity (Liters) | 36 |
| Internal Dimensions (mm) | 400*300*300 |
| External Dimensions (mm) | 1020*730*1300 |
| Net Weight (kg) | 195 |
| Power (kW) | 16 |
| Voltage (V) | 380V (3-Phase) |
| Heating Elements | SiC (Silicon Carbide) |
| Thermocouple Type | S Type |
| Temperature Precision | +/- 1C |
| Controller | Touch Screen PID |
| Vacuum Pressure (Mpa) | -0.1 |
| Certifications | CE / ISO9001 |
| Accessories | Gloves / Tongs / Trays |

Consider insulation, temperature stability, and safety features for muffles.

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Kalstein offers reliable, high-performance muffles with advanced control systems.
Our guides explain how to select the right muffle, emphasizing temperature range and capacity for your applications.
We provide detailed guides and recommendations to help you choose and maintain your muffle like a true expert, covering everything from installation to regular upkeep and troubleshooting tips to maximize lifespan and efficiency.
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FAQs
The delivery time for your Kalstein product will depend on the following:
- Whether the equipment of your interest is in stock or if it must be manufactured.
- The type of freight chosen, which can be either air or sea.
- Equipment in stock:
– Delivery Time (Air): 15-30 days.
– Delivery Time (Sea): 45-60 days.
- Equipment not in stock:
– Delivery Time (Air): 30-60 days.
– Delivery Time (Sea): 60-90 days.
You can make your purchase through:
- Email: [email protected]
- By phone: +33 (0) 1 70 39 26 50
- E-commerce: Through Kalstein’s official website in your country.
At Kalstein, we provide inductions and technical support online through new methods. You can watch our induction videos, technical assistance, and guidance by a Kalstein team via our Youtube channel (Kalstein English). HERE.