Model HP-II: High Pressure Blower

Cincinnati Fan manufactures the Model HP-II High Pressure Blowers in 12 models, each available with multiple wheel sizes. The Model HP-II include continuously welded heavy gauge steel housings with removable inlet plates and housings, Teflon shaft seals, and flanged inlets and outlets.

Two different wheel designs are available, including one with a continuously rising pressure characteristic for assured stable operation to complete shut off. The Model HP-II is also available in all aluminum or all stainless steel construction.

This blower is available in AMCA A, B, or C spark resistant construction.


• Capacities up to 7,000 CFM and 78″ SPWG
• Standard construction, airstream temperatures up to 200°F (93°C)
• Optional high-temperature construction, temperatures up to 750°F (398°C)


Pressure: See Model RBE




  • Each radial blower model is available with four to six wheel sizes for more airflow selections with a direct drive arrangement.
  • Continuous welded housings and teflon shaft seal to prevent air leakage.
  • Inlet and discharge flanges drilled per ASA, 150-pound and ANSI, 125-pound standard pipe sizes, are standard.
  • Blower housings are reversible and rotatable in 45° increments.
  • Removable inlet & drive side plates allow wheel or motor, or shaft & bearings on belt driven models, to be removed without disconnecting inlet or discharge connections.
  • All fans receive a mechanical run test to ensure proper balance and alignment before shipping.
  • Arrangement 8 units come standard with shaft/coupling guards.
  • Arrangement 9 and 9CB units come standard with belt guards.
  • Also available in aluminum or stainless steel construction.


  • Multiple Wheel Selections: With each model being available with four to six different wheel sizes, you are almost assured that a direct drive model will be available for your performance selection. Decreases the need for larger, more expensive belt driven models.
  • Rugged Construction: Housings are 7 and 10-gauge steel and are continuously welded to prevent leakage. Fan bases are 7 and 10-gauge steel to prevent pulsation at all conditions. Less field problems.
  • Standard Features: All units include a teflon shaft seal to minimize leakage and discharge flanges drilled to ASA, 150-pound, and ANSI, 125-pound standard pipe sizes. No additional cost.
  • Rotatable Housings: All models have housings that can be reversed and/or rotated in 45° increments in the field. Allows for field conversion without replacing the blower.
  • Ease of Maintenance: Replacing a wheel, motor, or shaft and bearings on belt driven models, is easily accomplished without disturbing the inlet or discharge pipe connections. It minimizes extended downtime.
  • Quality Components: All belt driven models have self-aligning, cast iron, re-lubricatable, pillow block bearings sized for a minimum 150,000 hours average life. All fan shafts are turned, ground, and polished and are coated with a high quality rust preventative before shipment. Long dependable service.

Arrangement 1 – Belt Drive

Arrangement 4& 4HM – Direct Drive

Arrangement 8 – Direct Drive

Arrangement 9 – Belt Drive
(Shown with shaft guard option)

Arrangement 9 – Belt Drive
(Shown with belt guard removed)

Drain Connection

Inspection Door

Inlet Bell

OSHA Type Outlet Guard

Shaft and/or Heat Slinger Guard
  • Combustion air
  • Blow-off
  • System pressurization
  • Pneumatic conveying
  • Material conveying


Exceptional local support with over 170 experienced sales engineers in 56 offices strategically located across the U.S. and Canada to assist you.