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| Brand | Tuofeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Model | TF-340C |
| Sand Composition | 97–99% SiO₂ (silicon dioxide) |
| Sand Blowing Concentration | 1 g/m³ ± 0.25 g/m³ |
| Sand Blowing Velocity | 0–29 m/s |
| Dust Blowing Concentration | 0.1–10.6 g/m³ |
| Dust Blowing Velocity | 8.9 m/s |
| Internal Dimensions (W×D×H) | 1000 × 1000 × 1000 mm |
| Mesh Filter | Stainless steel, wire diameter 50 µm, pitch 75 µm |
| Test Dust | ASTM D1898-compliant talcum powder or quartz sand (2–4 kg/m³ loading) |
| Vacuum Pump Flow Rate | 2 L/s |
| Vibration Timer Range | 0–99 h 59 min 59 s |
| Fan Timer Range | 0–99 h 59 min 59 s |
| Dust Collection System | Conical stainless-steel interior with centralized suction port |
| Control System | Weinview HMI touchscreen controller (industrial-grade, menu-free parameter access) |
| Heating/Cooling Ambient | +5 °C to +35 °C (for cooling operation: +5 °C to +28 °C) |
| Safety Protections | Overtemperature cutoff, short-circuit protection, fan overload detection, earth-leakage protection, phase-loss/sequence monitoring, reverse-fan rotation prevention, specimen safety interlock |
| [Brand | Topfeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Model | TF-340A |
| Sand Composition | 97–99% SiO₂ (silicon dioxide) |
| Sand Blowing Concentration | 1 g/m³ ± 0.25 g/m³ |
| Sand Blowing Velocity | 0–29 m/s |
| Dust Blowing Concentration | 0.1–10.6 g/m³ |
| Dust Blowing Velocity | 8.9 m/s |
| Internal Dimensions (W×D×H) | 800 × 800 × 800 mm |
| Mesh Filter | 50 µm wire diameter, 75 µm nominal spacing |
| Test Dust | Standard talcum powder per IEC 60529 & GB/T 4208 |
| Air Extraction Rate | 2 L/s |
| Vibration Duration Range | 0–99 h 59 min 59 s |
| Fan Operation Duration Range | 0–99 h 59 min 59 s |
| Dust Collection Funnel | 304 mirror-finish stainless steel interior with conical geometry |
| Enclosure Material | Powder-coated cold-rolled steel exterior |
| Control System | Weinview HMI touchscreen controller |
| Safety Protections | Overtemperature, short-circuit, fan overload, phase loss, leakage current, reverse rotation prevention, specimen protection] |
| [Brand | Topfeng |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Model | TF-340B |
| Sand Composition | 97–99% SiO₂ (silicon dioxide) |
| Sand Blowing Concentration | 1 g/m³ ± 0.25 g/m³ |
| Sand Blowing Velocity | 0–29 m/s |
| Dust Blowing Concentration | 0.1–10.6 g/m³ |
| Dust Blowing Velocity | 8.9 m/s |
| Internal Dimensions (W×D×H) | 800 × 800 × 800 mm |
| Filter Mesh | Stainless Steel, Wire Diameter 50 µm, Pitch 75 µm |
| Dust Medium | Standardized talcum powder or limestone powder (2–4 kg/m³) |
| Vacuum Extraction Rate | 2 L/s |
| Vibration Timer Range | 0–99 h 59 min 59 s |
| Fan Timer Range | 0–99 h 59 min 59 s |
| Dust Motor Power | 300 W |
| Control System | Weinview HMI touchscreen interface |
| Cabinet Material | Interior – 304 mirror-finish stainless steel (funnel-shaped floor) |
| Power Supply | 220 V AC / 16 A |
| Safety Protections | Overtemperature, short-circuit, motor overload, earth leakage, phase sequence/missing-phase detection, reverse fan rotation prevention, operator and specimen safety interlocks |
| Operating Ambient Temperature | +5 °C to +35 °C (for cooling operation: +5 °C to +28 °C) |
| Compliance | GB/T 4208–2008 (IP Code), GB 10485, GB 4942.1–1985, GB 7000.1–2015, IEC 60529 equivalent] |
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