Roots™ TRI-RAM™ Tri Lobe Rotary Blowers
The Roots™ Tri-RAM™ Series of tri-lobe blowers is engineered for heavy-duty industrial processes requiring high efficiency and significantly quieter operation. Available in 9 distinct models spanning frame sizes 409 through 832, these robust rotary positive displacement blowers feature an adaptable design with detachable feet and drive shaft extensions to accommodate either horizontal or vertical system configurations effortlessly.
View DetailsAvailable Products
9 Products
ROOTS™ 409 TRI-RAM Rotary Blower
ROOTS™ 413 TRI-RAM Rotary Blower
ROOTS™ 416 TRI-RAM Rotary Blower
ROOTS™ 617 TRI-RAM Rotary Blower
ROOTS™ 621 TRI-RAM Rotary Blower
ROOTS™ 722 TRI-RAM Rotary Blower
ROOTS™ 728 TRI-RAM Rotary Blower
ROOTS™ 826 TRI-RAM Rotary Blower
ROOTS™ 832 TRI-RAM Rotary Blower
Product Specifications
Roots TRI-RAM Rotary Blowers
All industrial rotary blowers in the Roots Tri-RAM series are built to excel in demanding environments where noise reduction and structural durability are top priorities. These units combine precision-engineered tri-lobe impellers with the exclusive Roots WHISPAIR™ discharge design. This unique combination controls backflow pulses, resulting in much quieter performance and lower shock loads than conventional two-lobe or standard tri-lobe machinery operating under identical plant conditions.
Built with rugged cast-iron cylinders and precision alloy-steel timing gears, Tri RAM rotary blowers are engineered to support long-term industrial operation under continuous load conditions. Cylindrical roller bearings help manage side loading from V-belt drives, while splash oil lubrication at both ends promotes reliable component protection.
Frame Sizes: 409 thru 832
Highlights
- Flow Rates: 317 CFM to 5399 CFM
- Pressure Range: 1 psi to 15 psi
- Vacuum: 1″ to 16″ Hg Dry
These heavy-duty Roots rotary blowers that industries rely on are engineered for quieter airflow delivery, stable pressure performance, and flexible installation adaptability.
Design & Features
- Tri-lobed impeller design improves airflow smoothness and operating efficiency
- WHISPAIR™ discharge technology helps reduce blower noise levels
- Heavy-duty ductile iron impellers provide dependable industrial durability
- Cast iron cylinders and headplates support long-term structural stability
- Cylindrical roller bearings handle side loads from belt-driven systems
- Hydrodynamic oil seals help prevent lubricant migration into the air chamber
- Splash oil lubrication protects internal components during continuous operation
- Detachable steel mounting feet allow horizontal or vertical installation flexibility
- Adaptable drive shaft configurations support multiple outlet arrangements
- Designed for industrial pressure and dry vacuum applications
Applications
- Pneumatic conveying and bulk dry material transport
- Municipal and industrial wastewater aeration systems
- Process gas boosting and chemical manufacturing lines
- Centralized vacuum cleaning and industrial dust collection
- High-volume combustion air supply and product drying applications
Manufacturer Note
All equipment installations must operate within specific thermal, speed, and pressure limits to safeguard internal running clearances. Please refer to the official Roots Installation, Operation, and Maintenance Manual for exact operational parameters, torque values, and service intervals.
Warranty Information
Models 409 – 621
24 months from the date of original unit start-up or 30 months from the date of original shipment, whichever occurs first.
Models 722 – 832
12 months from the date of original unit start-up or 18 months from the date of original shipment, whichever occurs first.
Industrial Heavy-duty Rotary Blower Solutions by ACFM
ACFM distributes high-performance Roots industrial products that commercial enterprises trust for their business-critical air processes. Our premium Roots Whispair blower solutions, including the Tri-RAM series, are custom-engineered to deliver maximum volumetric efficiency with reduced acoustic output and minimal maintenance downtime.
Whether you need to replace an existing rotary blower unit or require technical assistance in sizing a complete blower package layout, our engineering team provides reliable support tailored exactly to your manufacturing specifications.