T35-11 / BT35-11 Axial Flow Fan
Direct-drive industrial axial fan for workshop ventilation, warehouse air exchange, equipment-room exhaust, wall openings and short low-resistance duct systems.
T35-11 is intended for general ventilation. BT35-11 is the project-based explosion-proof configuration and must be matched to the required explosion-proof grade, gas group, temperature class and certificate.
High-Airflow Axial Fan for Low-Resistance Ventilation
The T35-11 / BT35-11 axial flow fan moves air in the same direction as the fan axis. Its direct-drive structure is suitable for projects requiring large airflow, a compact installation and relatively low system resistance.
Typical uses include workshop ventilation, warehouse air exchange, equipment-room exhaust, wall-mounted air discharge and short duct ventilation. The series is not intended as the first choice for long ducts, filters, baghouses or other systems requiring high static pressure.
Final selection should be based on airflow, total pressure or duct resistance, fan size, blade angle, speed, voltage, installation method, medium condition and safety requirement.
T35-11 General Type vs BT35-11 Explosion-Proof Configuration
| Item | T35-11 Axial Flow Fan | BT35-11 Configuration |
|---|---|---|
| Primary Use | General industrial ventilation | Ventilation requiring explosion-proof electrical configuration |
| Motor | Standard industrial motor | Explosion-proof motor selected by project requirement |
| Working Area | Non-hazardous industrial area | Hazardous-area ventilation only after formal requirement confirmation |
| Additional Data Required | Airflow, pressure, voltage and installation | Explosion-proof grade, gas group, temperature class, certificate and wiring method |
Suitable Conditions and Cases Requiring Another Fan Type
Reference Technical Parameters
| Product Series | T35-11 / BT35-11 |
| Fan Type | Direct-drive axial flow fan |
| Fan Size | No. 2.8–11.2 |
| Impeller Diameter | Approx. 280–1120 mm |
| Reference Airflow | Approx. 1,500–67,900 m³/h |
| Reference Total Pressure | Approx. 39–474 Pa |
| Reference Speed | 960 / 1450 / 2900 r/min |
| Motor Power | 0.18–7.5 kW common range; other configurations by confirmation |
| Reference Blade Angle | 15° / 20° / 25° / 30° / 35° |
| Reference Blade Quantity | 4 blades |
| Voltage | 220V / 380V; other voltage and frequency by confirmation |
| Installation | Wall-mounted, duct-mounted, floor support or customized support frame |
| Medium | Clean air or specified non-corrosive gas |
Typical T35 / BT35 Model Data
The following data is preserved for preliminary comparison. Final airflow, pressure, power, noise and dimensions should be checked against the selected operating point.
| Model | Speed | Airflow Reference | Pressure Reference | Motor Power Reference |
|---|---|---|---|---|
| No.2.8 | 1450 / 2900 r/min | 1,500–3,200 m³/h | 60–232 Pa | 0.18–0.25 kW |
| No.3.15 | 1450 / 2900 r/min | 2,270–4,545 m³/h | 74–373 Pa | 0.25–0.37 kW |
| No.3.55 | 1450 / 2900 r/min | 3,265–6,542 m³/h | 93–373 Pa | 0.37–0.75 kW |
| No.4 | 1450 / 2900 r/min | 4,687–9,336 m³/h | 119–474 Pa | 0.55–1.1 kW |
| No.4.5 | 1450 r/min | 6,658 m³/h | 150 Pa | 0.55 kW |
| No.5 | 1450 r/min | 9,133 m³/h | 185 Pa | 0.75 kW |
| No.5.6 | 1450 r/min | 12,812 m³/h | 232 Pa | 1.1 kW |
| No.6.3 | 1450 r/min | 18,250 m³/h | 294 Pa | 1.5 kW |
| No.7.1 | 960 / 1450 r/min | 17,296–26,120 m³/h | 164–373 Pa | 1.5–3 kW |
| No.8 | 960 / 1450 r/min | 24,739–37,370 m³/h | 208–474 Pa | 2.2–4 kW |
| No.9 | 960 r/min | 35,227 m³/h | 263 Pa | 3 kW |
| No.10 | 960 r/min | 48,326 m³/h | 321 Pa | 4 kW |
| No.11.2 | 960 r/min | 67,892 m³/h | 407 Pa | 7.5 kW |
Direct-Drive Axial Fan Construction
The fan mainly consists of a cylindrical casing, axial impeller, hub, direct-drive motor, protective guard, flange and support structure.
Wall, Duct and Support-Frame Installation
T35-11 and BT35-11 can be supplied for wall-mounted installation, short duct connection, floor support or project-specific mounting structures.
Explosion-Proof Requirements Must Be Confirmed Before Production
BT35-11 can be configured with an explosion-proof motor and related electrical components. The configuration should be selected from the actual hazardous-area requirement rather than from the fan model name alone.
| Explosion-Proof Grade | Confirm before quotation |
| Gas Group | Confirm from site classification |
| Temperature Class | Confirm from project requirement |
| Certificate | Specify required standard or certification |
| Wiring Method | Confirm junction box and cable-entry requirement |
What to Provide for Correct Axial Fan Selection
Required Airflow
Provide the required air volume in m³/h and any expected operating range.
System Resistance
Provide pressure or duct-resistance data to confirm whether an axial fan is suitable.
Installation Method
Wall opening, duct connection, floor support, flange size and available space.
Medium Condition
Confirm air composition, temperature, dust, moisture and corrosion conditions.
Electrical Supply
Provide voltage, frequency, phase, protection level and preferred motor standard.
Explosion-Proof Requirement
For BT35, provide grade, gas group, temperature class and certificate requirement.
Typical Ventilation Applications
Factory Ventilation
General air exchange for workshops and industrial buildings.
Warehouse Air Exchange
Large-airflow ventilation for storage areas and enclosed spaces.
Equipment-Room Exhaust
Heat removal and cooling ventilation for machinery rooms.
Short Duct Ventilation
Air movement through short ducts with relatively low resistance.
Wall-Mounted Exhaust
Direct air discharge through wall openings and louvers.
BT35 Project Ventilation
Ventilation requiring confirmed explosion-proof electrical configuration.
Related Axial Fan and Selection Resources
T35-11 / BT35-11 FAQ
What is the main difference between T35-11 and BT35-11?
T35-11 is used for general ventilation. BT35-11 is configured for projects requiring an explosion-proof motor and related electrical safety requirements.
Is an axial fan suitable for a long duct system?
Usually not as the first choice. T35 and BT35 are mainly selected for large airflow and low resistance. Long ducts, filters and silencers may require a centrifugal fan.
Can BT35 be used in every hazardous area?
No. Explosion-proof grade, gas group, temperature class, certificate and installation method must match the specific hazardous-area requirement.
Can the installation and voltage be customized?
Yes. Wall, duct and support-frame installation can be configured, and voltage and frequency can be matched to the project power supply.
What information should be sent for quotation?
Please provide airflow, pressure or duct resistance, installation method, medium, temperature, voltage, frequency, explosion-proof requirement, quantity and destination.
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