This article's table of contents introduction:
- Core Specifications (Typical)
- Typical Performance Range (Estimated)
- Key Engineering Features (Why "Alloy Steel"?)
- Typical Applications for this Fan
- Important Selection Checklist
- Industry Standard / Reference
It appears you are looking for a High-Temperature Industrial Centrifugal Fan made of Alloy Steel, rated for 80 kW (approx. 107 HP) motor power.
Based on the combination of High Temperature + Alloy Steel + 80 kW, this spec sheet typically describes a heavy-duty fan used in applications like kiln air supply, forge draft, industrial oven circulation, or boiler ID/FD systems.
Here is a detailed breakdown of what this specification generally implies and the typical product configuration.
Core Specifications (Typical)
- Power: 80 kW (107 HP)
- Material: Alloy Steel (often 16Mo3 or 15CrMo for higher creep resistance, or Stainless Steel 310S if temps exceed 600°C).
- Type: Centrifugal (usually Forward Curved for high volume or Radial Blade for high pressure/abrasion resistance).
- Application: Air Supply (Forced Draft) for combustion processes.
Typical Performance Range (Estimated)
Based on standard industrial fan curves for an 80kW unit:
| Parameter | Estimated Value | Notes |
|---|---|---|
| Air Volume | 40,000 – 80,000 m³/h | Depending on pressure requirements |
| Static Pressure | 2,000 – 5,000 Pa | High pressure requirements impact volume |
| Temperature | 200°C – 600°C | The alloy steel is key here; standard carbon steel fails above 200°C. |
| Speed | 1450 – 2900 RPM | Usually 4-pole or 2-pole motor driven directly or via coupling |
Key Engineering Features (Why "Alloy Steel"?)
Standard Q235 carbon steel loses structural integrity above 350°C. For an 80 kW fan operating at high temperature, thermal expansion and mechanical stress are enormous. The spec implies:
- Shaft: Alloy Steel (40Cr or 42CrMo) with cooling fins or a separate cooling fan to prevent heat transfer to the motor bearings.
- Impeller: High-strength alloy steel (e.g., 15CrMo) welded with post-weld heat treatment (PWHT) to relieve stress.
- Casing: Often lined with refractory or built with heavy-gauge alloy plate to prevent warping.
- Cooling System: Water-cooled bearings (mandatory for air above 300°C) or a ventilated bearing pedestal.
Typical Applications for this Fan
- Cement Plants: Kiln air supply.
- Steel Mills: Forge blowers, annealing furnace air supply.
- Glass Industry: Melting furnace combustion air.
- Power Plants: Biomass boiler forced draft (handling hot, dusty air).
- Chemical Industry: High-temperature reactor air supply.
Important Selection Checklist
Before purchasing an 80kW Alloy Steel High-Temperature Fan, ensure these parameters are verified:
- Actual Gas Temperature: Is it continuous or peak? (e.g., 350°C continuous vs. 500°C peak).
- Media Composition: Is the air clean, or does it contain dust, corrosive vapors (SOx, HCl), or sticky particles?
- Motor Mounting: Overhung (direct drive) or pedestal bearing (belt drive)? For 80kW, direct drive with a coupling is common but requires very precise alignment due to thermal growth.
- Material Grade: Ask specifically for 15CrMoR (Pressure Vessel grade) or 310S if exceeding 550°C. Do not accept "alloy steel" without a specific material certificate.
- Variable Speed: 80kW is large enough that a VFD (Variable Frequency Drive) is highly recommended for start-up and energy savings.
Industry Standard / Reference
This specification is common in Cement and Steel industries. A typical model number might look like:
W9-26 No. 16D or G4-73 No. 16D (with specific alloy material suffix).
If you are looking to quote or buy:
- Price Range: $15,000 – $30,000+ USD (depending on material thickness, temperature rating, and control accessories).
- Lead Time: 8 – 12 weeks (requires custom alloy steel procurement and fabrication).
Can you confirm the specific application (e.g., Boiler FD, Forge Blower, or Kiln Air)? Knowing the exact application helps narrow the pressure curve and material grade.
