Product Description

ROOTS™ RAM™ Frame 409 Rotary Positive Blower
ROOTS™ RAM™ Frame 409
Flow Range: to 900 CFM
Max Δ Pressure: 18 psi
Max Δ Vacuum: 16″ Hg
Maximum RPM: 4000
Minimum RPM: 850
Max ΔT: 240˚F
Connection: 4″ FPT
Shaft Dia.: 1.5″
Drive End Lubrication: Oil
Gear End Lubrication: Oil
Required Oil for Horizontal Unit: 55 ounces
Required Oil for Vertical Unit: 27 ounces
Unit Weight: 270 pounds (122.7 kg)
Shipping Container: Skid

ROOTS BOM# 82149020 LHBD

Plugged Impellers
In certain applications, such as pneumatic conveying, plugged impellers may be needed to keep material from building up in the rotor and creating an imbalance. RAM, RCS, and RAS units can be supplied with plugged impellers with additional cost and lead time. Contact us to discuss your application with one of our professional application engineers.

ROOTS™ RAM™ Frame 409 Rotary Positive Blower

SKU: N/A Category:


Weight: 340 lbs
Dimensions: 42 × 29 × 23 in
Max Flow:

900 CFM

Max Pressure:

18 psi

Max Vacuum:

16" Hg

Max Speed:

4000 RPM


Howden Roots