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Excavation Ventilation Blower
Warranty Period :
6 Months
The SHENLI CTF-30 is a 550W Air-Ventilation Fan (Industrial Blower) strictly engineered to extract air, clear fumes, and supply fresh oxygen in confined industrial spaces. It operates on a 100% pure copper-wire motor and utilizes a 300mm (12-inch) multi-blade aluminum alloy impeller securely housed within a 1.5mm thick steel casing. This specific mechanical configuration allows the machine to generate up to 450 Pa of total static pressure while achieving a maximum flow rate of 77 m³/min at peak operational speeds of 3450 RPM, ensuring continuous, high-volume air displacement without blade deformation.
Designed for structural drying and hazardous fume clearance, the unit functions dually as a positive-pressure blower or a heavy suction exhaust fan. It features IP55-rated protection against dust and water ingress, rubberized anti-vibration feet for stable floor placement, and slightly flared rims built to clamp standard 12-inch telescopic flexible ducting hoses. Emitting 69 dB(A) during operation, this machine manages workplace noise limits while effectively executing heavy-duty ventilation tasks across factories, commercial warehouses, chemical labs, and deep storage tanks.
• 100% Pure Copper Motor: Built with premium copper-wire windings to prevent thermal overload, ensuring maximum energy efficiency and continuous-duty runtime.
• Aluminum Alloy Impeller: Employs aerodynamically engineered die-cast metal blades to deliver large-volume airflow and sustained suction without bending or deformation.
• Heavy-Duty Steel Construction: Features a robust 1.5mm thick steel casing reinforced with secure front and back protective mesh grilles to withstand high-impact industrial environments.
• IP55 Weather & Dust Protection: Certified to block heavy dust ingress and resist low-pressure water splashes, making it fully safe for outdoor operations and harsh worksites.
• High-Static Pressure Output: Generates up to 385 / 450 Pa of internal pressure to efficiently push or pull dense air through long runs of attached ducting.
• High-Speed Dual Frequency: Handles 50/60Hz electrical frequencies, spinning between 2920 and 3450 RPM to rapidly displace stagnant air volumes from 65 to 77 m³/min.
• Flared Duct Rims: Designed with slightly flared intake and exhaust rims, allowing operators to easily attach and tightly clamp down standard 12-inch telescopic flexible hoses.
• Managed Noise Levels: Keeps high-velocity workplace acoustics within manageable limits by operating at a contained acoustic rating of 69 dB(A).
• Dual Blower & Exhaust Functionality: Configures instantly as either a positive-pressure fresh air supply blower or a heavy suction exhaust fan for precise directional airflow.
• Confined Space Occupational Safety: Actively clears stale air and delivers fresh oxygen to operators working inside manholes, sewers, and deep underground storage tanks.
• Multi-Industry Application: Engineered for extensive use across automotive assembly lines, factories, large workshops, commercial warehouses, basements, shipyards, and tunnels.
• Optimized Portability & Grip: Combines a balanced top-mounted carrying handle with rubberized anti-vibration feet to ensure high mobility and stable setup on any flat surface.
| Model | CTF-30 |
|---|---|
| Brand | SHENLI |
| Diameter | 300mm (12") |
| Motor Power | 500 / 550W |
| Voltage | 220-240V |
| Frequency | 50/60Hz |
| Total Pressure | 385 / 450 Pa |
| Flow Rate | 65 / 77 m³/min |
| Speed | 2920 / 3450 RPM |
| Noise Level | 69 dB(A) |
| Weight | Approx. 15 Kg |
| Country of Origin | China |
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