Positive Displacement Blowers with Power & Flexibility
Our versatile lineup of high-pressure PD blowers can be used in a variety of industrial applications.
Outstanding Performance & Quality for Industrial Applications
M-D Pneumatics has been recognized industry-wide for our reliable positive displacement blower solutions. Positive displacement (PD) rotary blowers are an ideal choice where high-pressure, heavy-duty blower systems are required. We offer a flexible portfolio of positive displacement blower packages, each suited to boost performance for your specific applications.
From Pneumatic Conveying to Process Gas Boosting to Dairy Milking, M-D Pneumatics has a blower solution for your application. PD Plus blowers are a heavy-duty, high-pressure industrial blowers and are renowned for their quality, dependability, and outstanding performance. CP Series blowers are rated up to 18 PSIG and offer standard features that save hundreds in maintenance costs. Equalizer blowers offer distinct advantages such as reduced noise, drop-in replacement, and field convertible flow configuration to provide ultimate installation flexibility.
Click on the blower options below to select the perfect solution for your application or contact M-D Pneumatics for advice from our blower experts.
PD Plus Blower Series
The PD Plus Series is a long-established line of premium, high-pressure industrial rotary blowers with heavy-duty models ranging from 3.25" to 12" gear diameter and 2.5" to 48" rotor length. The PD Plus Series is renowned for its quality, dependability, and outstanding performance.
PD Plus Blowers 1200
Up to 15 PSIG (1.03 bar g) pressure boost or 15” Hg (-500 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
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PD Plus Blowers 3200
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
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PD Plus Blowers 4000
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
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PD Plus Blowers 5500
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
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PD Plus Blowers 7000
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
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PD Plus Blowers 9000
Up to 15 PSIG (1.03 bar g) pressure boost or 15” Hg (-500 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
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CP Blower Series
The CP Series include rotary positive displacement blowers that combine rugged performance with flexibility as drop-in replacements to fit a variety of applications. CP Series blowers can be field converted from horizontal to vertical flow, or vice versa, without any special tools or components.
CP Series
Air blower, rated up to 15 PSI / 16" Hg vac. Designed to be interchangeable with equivalent sizes of competitive models.
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Equalizer RM & DF Blower Series
The Equalizer Series of positive displacement rotary blowers offers many distinct advantages, such as a one-piece housing in a compact design, helical gearing to reduce noise, 4.5" & 6" gear diameters, bi-rotational rotors with integrally cast shafts, and field convertible flow configuration.
Equalizer RM Blowers
Equalizer RM rotary positive blowers are designed to be interchangeable with equivalent sizes of competitive models.
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Equalizer DF Blowers
Equalizer DF rotary positive blowers are designed to be interchangeable with equivalent sizes of competitive models.
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QX Blower Series
The QX Series of PD blowers is a high-pressure, low-noise industrial blower that provides high efficiency at high pressure and vacuum. Its bi-direction, tri-lobe rotor design offers reduced pulsation and lower noise levels while its large integral shaft rotors prevent loosening over time.
Qx Blowers
Air blower, rated up to 18 PSI / 17" Hg vac. High performance, energy efficient, low-noise line designed for long operating life at maximum operating conditions.
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PD Plus
PD Plus Blower Series
The PD Plus Series is a long-established line of premium, high-pressure industrial rotary blowers with heavy-duty models ranging from 3.25" to 12" gear diameter and 2.5" to 48" rotor length. The PD Plus Series is renowned for its quality, dependability, and outstanding performance.
PD Plus Blowers 1200
Up to 15 PSIG (1.03 bar g) pressure boost or 15” Hg (-500 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
Learn More
PD Plus Blowers 3200
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
Learn More
PD Plus Blowers 4000
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
Learn More
PD Plus Blowers 5500
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
Learn More
PD Plus Blowers 7000
Up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
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PD Plus Blowers 9000
Up to 15 PSIG (1.03 bar g) pressure boost or 15” Hg (-500 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
Learn More
CP Series
CP Blower Series
The CP Series include rotary positive displacement blowers that combine rugged performance with flexibility as drop-in replacements to fit a variety of applications. CP Series blowers can be field converted from horizontal to vertical flow, or vice versa, without any special tools or components.
CP Series
Air blower, rated up to 15 PSI / 16" Hg vac. Designed to be interchangeable with equivalent sizes of competitive models.
Learn More
Equalizer
Equalizer RM & DF Blower Series
The Equalizer Series of positive displacement rotary blowers offers many distinct advantages, such as a one-piece housing in a compact design, helical gearing to reduce noise, 4.5" & 6" gear diameters, bi-rotational rotors with integrally cast shafts, and field convertible flow configuration.
Equalizer RM Blowers
Equalizer RM rotary positive blowers are designed to be interchangeable with equivalent sizes of competitive models.
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Equalizer DF Blowers
Equalizer DF rotary positive blowers are designed to be interchangeable with equivalent sizes of competitive models.
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QX Series
QX Blower Series
The QX Series of PD blowers is a high-pressure, low-noise industrial blower that provides high efficiency at high pressure and vacuum. Its bi-direction, tri-lobe rotor design offers reduced pulsation and lower noise levels while its large integral shaft rotors prevent loosening over time.
Qx Blowers
Air blower, rated up to 18 PSI / 17" Hg vac. High performance, energy efficient, low-noise line designed for long operating life at maximum operating conditions.
Learn More
What Are Positive Displacement (PD) Blowers?
A positive displacement blower moves gas or air from the upper inlet port into the stage using two parallel rotary pistons mounted within the conveying chamber, or blower housing. The pistons rotate in opposite directions to facilitate the conveyance of gas or air from the top to the bottom. Positive displacement blowers are commonly called PD Blowers or Rotary Blowers and are typically categorized as a lobe type or a screw type.