Picked up a used Twister T6 for $400 and replaced the gear box for $100 and now its like new again.
J&D Manufacturing Product Documents
J&D Manufacturing Diamond Brite Portable Drum Fan product InformationJ&D Manufacturing's Diamond Brite High-Performance Drum Fan Series delivers powerful, portable air movement for demanding industrial, agricultural, and commercial environments. Built with a patented Diamond Brite aluminum housing and black powder-coated OSHA-compliant guards, these fans combine a clean, professional finish with rugged durability. Available in five sizes from 20" to 48", each unit ships fully assembled and ready to use - with aluminum handles, a cord wrap, rubber feet, and a 10-foot 115V cord making them as easy to move as they are to deploy.
Features & Benefits
- Patented Diamond Brite Housing: Distinctive aluminum housing with a premium Diamond Brite finish provides exceptional durability and a clean, professional look that stands out on any job site or facility floor.
- Five Size Options: Available in 20", 30", 36", 42", and 48" to match a wide range of airflow demands - from spot cooling to whole-facility ventilation.
- Fully Assembled & Portable: Ships completely ready to use, with aluminum carrying handles, a cord wrap for tidy storage, and rubber feet for reduced noise and stable operation on any surface.
- OSHA-Compliant Black Powder-Coated Guards: Heavy-gauge galvanized guards with black powder coat finish meet safety standards while complementing the Diamond Brite housing aesthetic.
- Pre-Wired for 115V: Attached 10-foot cord with 3-prong plug - just plug in and go, no electrician required.
- 2-Speed Motor (42" Model): The 42" model features a 2-speed motor for flexible airflow control to suit varying conditions.
- Compatible with Misting & Fogging Systems: Designed to pair directly with J&D's misting and fogging product line for evaporative cooling in hot environments.
- High-Volume Airflow: Delivers up to 23,500 CFM (48" model) for powerful air exchange in large spaces including warehouses, barns, manufacturing floors, and greenhouses.
- Broad Application Range: Ideal for dairy, poultry, swine, greenhouse, and industrial environments where portable, high-volume airflow is required.
Technical Specifications
| Part # | Size | HP | Volts | Amps | Phase | Speeds | RPM | Drive | Prop | Thrust CFM | CFM/Watt |
|---|---|---|---|---|---|---|---|---|---|---|---|
| VI2012B1 | 20" | 1/2 | 115/230 | 4.8/2.4 | 1 | 1 | 1,725 | Direct | Aluminum | 4,760 | 16.0 |
| VI3012WB | 30" | 1/2 | 115/230 | 6.1/3.09 | 1 | 1 | 825 | Direct | Aluminum | 9,100 | 20.0 |
| VI3612WB | 36" | 1/2 | 115/230 | 6.1/3.09 | 1 | 1 | 825 | Direct | Galvanized | 11,800 | 22.0 |
| VI4234WB2 | 42" | 3/4 | 115 | 8.9/6.1 | 1 | 2 | 542 | Belt | Galvanized | 14,440 | 17.3 |
| VI481WB | 48" | 1 | 115/208-230 | 9.0/4.5 | 1 | 1 | 525 | Belt | Galvanized | 23,500 | 25.0 |




