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Additional Resources

Downloads, FAQs, and more.

Frequently Asked Questions View all FAQs
How do you order the correct replacement parts?

Before ordering replacement parts, make sure you have the fan model and serial number.

Where can I find instructions to wire a motor on my fan?

The nameplate of the motor includes a wiring diagram. Wiring diagrams can also be found beneath the motor image in our Buy Parts section. Simply click the wiring diagram icon to view it.

Can I install a thermostat?

Yes, but only if the thermostat has a simple on/off operation. Please note: if the thermostat varies the amount of voltage delivered, it will damage the motor and void the warranty.

Can I install my whole house fan vertically?

Comfort Cooler (CC) series whole-house fans may be mounted vertically, however, the AS and CSS shutters will not function properly in the vertical position. We do not carry a ceiling shutter for vertical installation. Vertical installation instructions.

Quality Products

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HBD Series Heavy-Duty Cradle-Mounted Belt-Driven Portable Barrel Fans

QUALITYProducts.
SINCE 1948.

HBD Series Heavy-Duty Cradle-Mounted Belt-Driven Portable Barrel Fans

Sales Sheet
Choose a model below to view drawing
48” HBD4815

The HBD Series combines the high-airflow performance of a heavy-duty belt-driven portable barrel fan with the added control of a cradle-mounted pivoting barrel. Designed for industrial environments where directional airflow is critical, HBD models allow precise aiming of high-volume air movement while maintaining full-service belt-drive construction.

Available in 36″, 42″, and 48″ diameters, HBD models deliver up to 19,460 CFM with horsepower options from ½ HP to 1 HP. Deep-pitch blades maximize air delivery, while rubber isolated bearings reduce vibration transfer and support long-term durability.

Mounted on a heavy-gauge cradle frame, the barrel tilts up or down a full 90° and locks securely in position using a positive tilt-lock knob, allowing airflow to be directed toward ceilings, workstations, equipment, or targeted areas.

  • High-volume airflow – up to 19,460 CFM
  • Heavy-gauge cradle mount – supports a pivoting barrel for directional airflow
  • Tilts up or down 90° with positive tilt lock – secure and precise airflow control
  • Full-service belt-drive construction – engineered for long-term maintainability
  • Heavy-gauge painted steel barrel – built for demanding industrial environments
  • Roll-formed “ogee” barrel profile – increases rigidity and resists deformation
  • Automatic belt tensioner (standard on ½ HP and ¾ HP models) – reduces routine adjustment
  • Rubber isolated bearings – reduce vibration transfer and protect structural components
  • Deep-pitch blades – maximize air delivery
  • Large no-flat wheels (standard) – durable transport across industrial and jobsite surfaces
  • OSHA spiral-wound guards – safety and strength combined
  • Factory-stocked replacement parts – motors, blades, guards, and wheels ship quickly

36″ Models

  • HBD3613 – ½ HP – 12,100 CFM

  • HBD3623 – ½ HP – 12,100 / 8,060 CFM

42″ Models

  • HBD4213 – ½ HP – 14,445 CFM

  • HBD4223 – ½ HP – 14,445 / 9,550 CFM

  • HBD4214 – ¾ HP – 16,990 CFM

48″ Models

  • HBD4815 – 1 HP – 19,460 CFM

Motor & drive

  • Belt-driven

  • Open drip proof (ODP) motor standard

  • Totally enclosed motor available on select models

  • Automatic belt tensioner standard on ½ HP and ¾ HP models

  • Single-speed and two-speed options

  • 115V single-phase (model dependent)

  • Higher voltage and phase options available (model dependent)

Approximate dimensions

  • 36″: 50″ W × 27″ D × 50″ H

  • 42″: 54″ W × 27″ D × 54″ H

  • 48″: 58″ W × 27″ D × 60″ H

Features vary by model. Refer to individual specifications for details.

Select HBD Series models are available with hazardous location–rated motor configurations.

These models are supplied with motors rated for:

  • Class I, Division 1, Group D
  • Class II, Groups F & G

The hazardous location rating applies to the motor. System suitability for specific classified environments should be reviewed by the specifying engineer or authority having jurisdiction.

Hazardous location configurations include:

  • Single-speed hazardous location motor
  • Stationary motor mount
  • Aluminum blade
  • No wiring or switch
  • Directed spot cooling in warehouses and manufacturing plants
  • Equipment cooling and process airflow
  • High-bay destratification
  • Agricultural and grain handling facilities
  • Industrial maintenance operations
  • Hazardous location motor applications

The HBD Series delivers the performance of a heavy-duty belt-driven portable barrel fan with the added flexibility of directional airflow control. The cradle-mounted pivoting barrel allows airflow to be aimed precisely where it is needed, improving cooling efficiency and air distribution.

Built with industrial-grade components, vibration-isolated bearings, and large no-flat wheels, HBD fans are engineered for demanding environments where durability and control matter.

Every unit ships fully assembled and performance tested. The heavy-gauge steel barrel and roll-formed ogee profile provide structural strength that supports long-term durability in high-use industrial environments. Fully supported with factory-stocked replacement parts, HBD fans are designed to be maintained, not replaced.

Built in the USA with a blend of domestic and foreign components, the HBD Series reflects Triangle Engineering’s commitment to durable, serviceable industrial airflow solutions.

Details

  • Mounted on a heavy gauge cradle
  • Tilts up or down 90° with positive tilt lock knob
  • Automatic belt tensioner
  • Single and two speed models

See full specifications for sizing and performance data

View Full Specs

Hazardous Location Models

Hazardous location models are available for all sizes of single-speed HBD portable tilt fans.

  • Motor: single-speed Div. 1, Class 1, Group D and Class II, Groups F & G
  • Voltage: single phase (115/230v) or three-phase (230/460v) motor
  • Non-sparking aluminum blade
  • Stationary motor mount
  • No wiring or switch
Hazardous Location Models Resources: