Box Type Laboratory Resistance Muffle Furnace Ashing Furnace for Heat Treatment and High Temperature Testing

This box type laboratory resistance muffle furnace is a high-temperature resistance furnace widely used for material heat treatment, sample calcination, sintering, and ashing experiments. It also meets petroleum industry requirements for ash content and carbon residue testing of crude oil, fuel oil, and bitumen in refineries and third-party laboratories, and is compliant with ASTM D482 / D4530.

The furnace adopts a high-quality ceramic fiber insulation lining and an intelligent PID digital temperature controller, delivering fast heating speed and excellent temperature uniformity. It is widely used in material, chemical, mining, petrochemical, university, and research institute laboratories.

1. High-temperature-resistant ceramic fiber inner chamber: lightweight, low heat loss, and energy-saving.
2. Precise PID temperature control with over-temperature protection for safe and stable operation.
3. Stainless steel outer cabinet: anti-rust and easy to clean, with side resistance wire heating.
4. Simple door locking structure for easy sample loading and unloading.
5. Multiple standard chamber sizes available, with customized internal dimensions on request.
6. Dual usage: general heat treatment and petroleum ash / carbon residue testing.

• ✔Heat treatment: metal quenching, annealing, tempering, and sintering
• ✔Petroleum laboratory: ash and carbon residue testing for crude oil, fuel oil, and asphalt (ASTM standard)
• ✔Material and chemical laboratory: sample calcination and high-temperature ashing
• ✔Third-party laboratories, universities, and research institutes for R&D testing

Packing: Export fumigated wooden case.

Warranty: 1 year for the main body; heating elements are consumables.

Service: Operation manual, video training, and lifelong spare parts supply.

Custom chamber sizes and temperature ranges are available. Please tell us your required inner dimensions and maximum working temperature, and we will send a quotation and full specification sheet immediately.