mini tube furnace is a compact, benchtop heater that provides precise, high-temperature processing for small samples under controlled atmospheres. It’s ideal when you need lab-grade performance but have limited space or low sample throughput.

Key Features

Compact footprint: typically < 40 cm wide; fits a crowded bench or fume hood.

Fast heat-up/cool-down: low thermal mass for quick cycle times.

Accurate control: PID/programmable controller, multi-segment ramps/soaks, ±1 °C stability (model-dependent).

Atmosphere versatility: air, inert (Ar/N₂), reducing (H₂ with safety), or vacuum options.

Interchangeable tubes: quartz/alumina/SiC in small IDs (e.g., 25–60 mm).

Safety: over-temp cutoff, door/cover interlock, gas purge & exhaust fittings.

Typical Applications

Rapid annealing/tempering of metals, semiconductors, and glass.

Sintering/calcination of ceramics and battery materials (pilot recipes).

CVD/thermal decomposition for catalysts and thin films (small scale).

Method development before scaling to larger furnaces.

Teaching labs & QA/QC where repeatability matters.
Tube material:

Quartz—clean, vacuum-friendly, great for CVD & mid-temperature work.

Alumina (99%+)—oxidizing atmospheres and higher temps (≥1600 °C).

SiC/graphite—specialized, high-temp or chemically aggressive use.

Split vs. solid body: split housings simplify tube swaps and boat loading.

Gas handling: 1–3 MFCs, back-pressure control, H₂ safety interlocks, tail-gas scrubber.

Vacuum: KF/CF flanges, rotary/turbo pump packages, cold trap.

Fixtures: quartz boats, crucible hangers, sample holders, rotary agitation (mini-rotary).

Data & compliance: USB/RS-485/Ethernet logging, recipe management, CE/UL.

Selection Guide (quick)

Temperature class: ≤1200 °C (FeCrAl), 1400–1500 °C (SiC), 1600–1800 °C (MoSi₂).

Tube ID & hot-zone length: match sample size + gas flow needs; allow 10–20% margin.

Atmosphere: vacuum or reactive gases? Add proper seals, MFCs, and safety.

Uniformity needs: consider 2-zone or longer hot zone if you run gradients or batch boats.

Throughput & cycle time: small hot zone = fast cycles; ensure power headroom.

Best Practices

Pre-bake tubes and purge (3–5× volume) before heating to remove moisture.

Use slow ramps near material transitions (glass softening, binder burnout).

Protect seals from condensables (cold trap) and replace O-rings regularly.

Verify thermocouple calibration; log recipes for repeatability.

Mini Tube Furnace FAQ

Q: Can it run hydrogen?
A: Yes—with dedicated H₂ MFCs, leak checks, exhaust, and interlocks (and local safety compliance).

Q: How “vacuum” is vacuum?
A: With elastomer seals + rotary pump: ~1–10 Pa; with metal seals + turbo: 10⁻³–10⁻⁵ Pa (tube/fixturing dependent).

Q: What tube should I choose?
A: CVD/surface work → quartz; high-temp oxidizing → alumina; harsh chem/high temp → SiC/graphite (non-oxidizing).

Mini Tube Furnace Technical Parameters

Model	Max temperature	Heating zone length	Constant temperature zone length	Power and voltage	Furnace tube size	Dimensions
YXG-1200-A1	1200℃	200mm	60mm	1.5kW/AC220V	φ30/50*500mm	800*340*400mm
YXG-1200-A2	1200℃	440mm	120mm	3kW/AC220V	φ30/100*1000mm	1120*480*530mm
YXG-1200II-200	1200℃	200+200mm	200mm	3KW/AC220V	φ30/100*1000mm	1100*420*560mm
YXG-120OIII-200	1200℃	3*200mm	3*60mm	4.5KW/AC220V	φ30/100*1000mm	1400*420*560mm
YXG-1400-400	1400℃	400mm	120mm	5kW/AC220V	φ30/100*1000mm	1200*500*660mm
YXG-140OIl-200	1400℃	200+200mm	200mm	5kW/AC220V	φ30/100*1000mm	1200*500*660mm
YXG-1700-290	1700℃	290mm	80mm	6kW/AC220V	φ30/100*1000mm	1300*640*870mm

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