
HHO Quartz Tube Flame Sealer – Laboratory Vacuum Sealing Equipment
SKU: XNFKJ-700
HHO Quartz Tube Flame Sealer XNFKJ-700 generates hydrogen and oxygen by water electrolysis for on-demand flame sealing of quartz ampoules and quartz tubes; flame temperature up to 3000°C; gas output 0–700 L/h (stepless); automatic tube rotation for uniform heating; multi-layer safety (torch flashback arrestor, pipeline flashback arrestors, wet-type anti-backfire); automatic pressure protection stops at 0.2 MPa; 110 V, 2400 W; 945 × 246 × 470 mm, 45 kg.
Name: HHO Quartz Tube Flame Sealer XNFKJ-700
Equipment Type: HHO Hydrogen-Oxygen Quartz Tube Flame Sealing Machine
Product Code: XNFKJ-700
Brand: Xnergy
Product Introduction:
XNFKJ-700 is an HHO hydrogen-oxygen quartz tube flame sealing machine used for air-free and moisture-free vacuum sealing of quartz ampoules and quartz tubes. The system generates hydrogen and oxygen by electrolysis of pure or distilled water at the ideal 2:1 combustion ratio, producing a concentrated, stable hydrogen-oxygen flame that reaches up to 3000°C — sufficient for quartz melting and flame sealing. Gas output is continuously adjustable from 0 to 700 L/h (100% stepless); gas is generated on demand with no storage required. The system includes a vacuum sealing port and vacuum pump. Dynamic sealing with automatic tube rotation ensures uniform heating. Safety systems include a flashback arrestor built into the flame torch, additional pipeline flashback arrestors, a wet-type internal anti-backfire system, and automatic pressure control (production stops at 0.2 MPa, resumes below 0.08 MPa). Operating status and fault alarms are shown on a graphical display.
Key Features:
- HHO flame temperature up to 3000°C; suitable for quartz melting and flame sealing
- Gas output 0–700 L/h (0–100% stepless adjustable); generated on demand, no storage
- Water electrolysis at 2:1 H&sub2;:O&sub2; ratio — clean, pollution-free gas
- Dynamic sealing with automatic tube rotation for uniform heating
- Suitable for quartz ampoules and internal quartz rod pull-sealing
- Automatic pressure protection: stops at 0.2 MPa, resumes at 0.08 MPa
- Multi-layer safety: flashback arrestor in torch, pipeline flashback arrestors, wet-type anti-backfire system
- Graphical display with real-time status and fault alarms
- Compatible with gas cylinder installation and fixation; standard quick-connect ports
- Accessories included: flame torch × 1, flashback arrestor × 1, torch fixing bracket × 1
| Parameter | Specification |
|---|---|
| Input Voltage | 110 V |
| Rated Power | 2400 W |
| Gas Output | 0–700 L/h (0–100% stepless adjustable) |
| Raw Material | Pure water or distilled water |
| Max. Flame Temperature | Up to 3000°C |
| Pressure Auto-Stop | 0.2 MPa (resumes below 0.08 MPa) |
| Dimensions (L × W × H) | 945 × 246 × 470 mm |
| Gross Weight | 45 kg |
| Accessories | Flame torch × 1; flashback arrestor × 1; torch fixing bracket × 1 |
Note: XNFKJ-700 uses hydrogen-oxygen flame for high-temperature quartz tube sealing. For vacuum-mechanical sealing without open flame, see the Glass Tube Vacuum Sealing Machine XNVQ-01.




