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Mfr. Part #: R3105-12
Ships same day with standard 2-day shipping if ordered M-F before 3PM PT.
The Gast R3105-12 Regenerative Blower is a single-stage, oil-free blower designed to provide reliable pressure or vacuum for industrial and OEM applications. Part of Gast's R3 series, this motor-mounted regenerative blower features rugged construction, corrosion-resistant materials, and a compact design. Its oil-free operation eliminates the need for oil in the compression chamber, helping deliver clean, uncontaminated airflow. The R3105-12 features a single-phase AC motor operating at 115/208–230V, 60 Hz, or 110/220–240V, 50 Hz. At 60 Hz, the blower delivers up to 52 CFM of airflow, with a maximum pressure of 55 inches H₂O (137 mbar) and maximum vacuum of 50 inches H₂O (125 mbar). The motor is rated at 0.5 HP at 60 Hz and 1/3 HP at 50 Hz. Its regenerative design minimizes wear and maintenance requirements, making it suitable for demanding industrial environments. Designed for pressure and vacuum applications, the Gast R3105-12 is well suited for pneumatic conveying, pond and wastewater aeration, air blow-off, packaging equipment, aquaculture, and industrial process systems. Its motor-mounted configuration and relatively compact construction make it a practical choice for OEM equipment integration and replacement applications. The blower incorporates sealed ball bearings and integrated mufflers to help support reliable operation and reduce operating noise. TECO Technology is an authorized Gast distributor and repair facility. We offer genuine Gast regenerative blowers, replacement parts, and technical assistance to help customers select, maintain, and service their Gast equipment.
Gast R3105-12 Regenerative Blower
Key Features:
- Oil-less operation prevents discharge air contamination
- Rugged construction with cast aluminum impeller and housing
- TEFC (Totally Enclosed Fan Cooled) motor with thermal protection
- Compact design allows mounting in any plane
- Low maintenance with minimal moving parts and no wearing components
Applications:
- Pond and lake aeration
- Sewage and wastewater treatment systems
- Pneumatic conveying systems
- Air blow-off and ventilation
- Laboratory filtration systems
- Soil and groundwater remediation
- Carton forming and packaging
- Aquaculture and materials handling
| SPECIFICATIONS | ||
| Thermal Protection | YES | |
| Operating Voltage | 110/220-240; 115/208-230 | |
| Regulatory Approval | CSA, CE | |
| Motor Power | 1/3 HP @ 50 Hz / 1/2 HP @ 60 Hz | |
| Motor Speed | 2,850 RPM @ 50 Hz / 3,450 RPM @ 60 Hz | |
| Phase | Single | |
| Flow @ 50 Hz | 44 cfm (74.76 m³/h) | |
| Flow @ 60 Hz | 52 cfm (88.35 m³/h) | |
| Max Pressure | 55 in. H₂O (137 mbar) | |
| Max Pressure @ 50 Hz | 40 in. H₂O (100 mbar) | |
| Max Pressure @ 60 Hz | 55 in. H₂O (137 mbar) | |
| Max Vacuum @ 50 Hz | 35 in. H₂O (87 mbar) | |
| Max Vacuum @ 60 Hz | 50 in. H₂O (125 mbar) | |
| Weight | 29 lb @ 50 Hz / 30 lb @ 60 Hz | |
| Duty Cycle | 100% | |
| Warranty | 1 Year | |




ID #: 22057