Rotary PD Blowers

close

Overview

M-D Pneumatics™ blowers, vacuum boosters and blower packages are known for reliability and quality.

The product series offer a range of models and a mix of standard and optional features to fit a variety of applications. Custom blower packages to 9,000 CFM are available.

Your single-source solution for

  • Rotary positive displacement blowers
  • Vacuum boosters
  • Engineered systems

Product Information

Overview CP Series Equaliser DF Equaliser RM PD Plus Qx Series

Tuthill positive displacement (PD) blowers cover a huge range of applications - see what each series are typically used for below.

CP SeriesEqualiser PD PlusQx Series

Typical Applications

  • Pneumatic conveying
  • Vacuum excavation
  • Dust collection
  • Carpet cleaning
  • Air sparging
  • Dairy milking
  • Wastewater aeration

Typical applications

  • Pneumatic conveying
  • Dust collection
  • Carpet cleaning
  • Air sparging
  • Dairy milking
  • Compost aeration

Typical applications

  • Pneumatic conveying
  • Steam compression
  • Vapour recovery
  • Soil vapour extraction
  • Process gas boosting

Typical applications

  • Pneumatic conveying
  • Bulk loading/unloading
  • Dust collection
  • Wastewater aeration
  • Compost aeration
Overview CP Series Equaliser DF Equaliser RM PD Plus Qx Series

Our M-D Pneumatics™ rotary positive displacement blowers combine rugged Tuthill CP Series Displayperformance 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 additional components. CP Series rotary blowers are designed to be interchangeable with equivalent sizes of Roots Universal RAI® and many Sutorbilt® Legend® blowers.

Continuous Power: Delivering up to 20% more power, CP Series offers models now rated up to 18 PSIG discharge pressure or 16” Hg dry vacuum.

Constant Protection: Standard on all models, triple lip seals extend the life of the seal and have been shown to provide longer bearing life. Magnetic drain plugs keep particles from moving through bearings and seals.

Stronger Bearings: All CP Series blowers include double-row ball bearings at the gear end, stronger than single-row ball bearings offered by other manufacturers. Drive shaft bearing is cylindrical roller type for additional strength against side loading from V-belt drives. CP Series bearing life is as much as 50% greater than models offered by other manufacturers.Tuthill CP Series Cut away Display

Helical Gearing: CP Series blowers are timed with precision helical gears keyed to the rotor shafts, not taper-fit spur gears as offered by other manufacturers which have greater backlash, can slip and lose timing. Helical gears are also quieter, reducing mechanical noise.

Metric Availability: CP Series blowers are available with metric drive shaft and process connections.

Lubrication: Many CP Series models include dual oil splash lubrication at both the gear end and drive end of the blower. Splash lubrication provides for longer bearing and seal life through improved heat dissipation versus grease lubrication.

Reduced Noise Versions Available: CP Series standard models feature a bi-lobe design with integral shafts. Many models are available with tri-lobe rotors and a specially tuned housing to reduce blower noise.

*Models also available with splash lubrication

ModelCapacity (m³/hr)Power Required (kW)
200217-1091-4
200441-2331-4
3002*37-2313-9
3003*51-3089-11
3006*102-5274-22
4002*31-3139-11
4005*68-6342-24
4007*92-8363-32
5003*70-5502-22
5006*116-9233-37
5009*221-14004-37
6005*115-8444-35
6008*248-13565-35
6015*464-253810-40
7006291-12475-41
7011547-230410-50
7018951-380616-48
Overview CP Series Equaliser DF Equaliser RM PD Plus Qx Series

Bi-directional Rotation
17 Series - Horizontal Air Flow
46 Series - Vertical Air Flow
Designed to be interchangeable with equivalent Gardner Denver Duroflow® models, EQUALIZER DF rotary positive blowers offer many distinct advantages.

Higher Pressure Capability:
Due to the high degree of precision to which EQUALIZER DF blowers are manufactured, most models are rated to 18 PSIG discharge pressure. This provides you with an increased level of security since your EQUALIZER DF blower has more safety factor already built in.


Designed for True, Drop-in Replacement
The last thing you need is an “interchangeable” blower that really isn’t. EQUALIZER DF blowers are designed to be dimensionally interchangeable with competing models, even to the point of matching the port connector bolt patterns.

Helical Gearing
EQUALIZER DF blowers are timed with precision helical gears that are keyed to the rotor shafts. Helical gearing reduces backlash and mechanical noise as compared to spur gears offered by other manufacturers. Keyed interference fit reduces the risk of slippage of the gear on the shaft and loss of timing, one of the leading causes of blower failure.

One Piece Housing
Every EQUALIZER DF blower includes a housing constructed of a single piece of precision machined cast iron, rather than a two piece housing which is subject to misalignment and loss of operating clearances.

Rotors with Integral Shafts
EQUALIZER DF blowers include precision machined ductile iron rotors with large, integrally cast shafts to provide single, unitized rotors to prevent clash as a result of the impeller moving on its shaft.

Versatility
Flow configuration is completely field convertible from horizontal to vertical flow, or vice versa simply by rearranging oil breathers, drains and changing the mounting feet.

ModelCapacity (m³/hr)Power Required (kW)
450466-7071-29
4506139-10521-42
4509212-15622-59
4512287-20832-66
Overview CP Series Equaliser DF Equaliser RM PD Plus Qx Series

Bi-directional Rotation
17 Series - Horizontal Air Flow
46 Series - Vertical Air Flow

Designed to be interchangeable with equivalent Roots™ RAM™ models, EQUALIZER RM rotary positive blowers offer many distinct advantages when compared to other brands.

Helical Gearing
EQUALIZER RM blowers are timed with precision helical gears, keyed to the rotor shafts. Helical gearing reduces backlash and mechanical noise as compared to spur gears offered by other manufacturers. Keyed interference fit reduces the risk of slippage of the gear on the shaft and loss of timing, one of the leading causes of blower failure.

One Piece Housing
Every EQUALIZER RM blower includes a housing constructed of a single piece of precision machined cast iron, rather than a two piece housing which is subject to misalignment and loss of operating clearances.

Rotors with Integral Shafts
EQUALIZER RM blowers include precision machined and dynamically balanced ductile iron rotors with large, integrally cast shafts to provide a single unitized rotor to prevent clash as a result of the impeller moving on its shaft.

Metric Availability
All EQUALIZER RM blowers are available with metric drive shaft and process connections.

ModelCapacity (m³/hr)Power Required (kW)
4606145-10972-43
4609219-16082-61
4612294-21302-67
6012595-28343-89
6016840-37944-117
60241411-57095-117
Overview CP Series Equaliser DF Equaliser RM PD Plus Qx Series

The Tuthill PD Plus is a long-established line of premium, high-pressure industrial blowers with heavy-duty models ranging from 3.25” to 12” gear diameter and 2.5” to 48” rotor length. These blowers are renowned for their quality, dependability, and outstanding performance. They are offered in air and gas configurations rated up to 18 PSI / 17“ Hg vac.

Vertical & Horizontal Air Flow: This series has wide applications in pneumatic conveying, wastewater treatment, and the general process industry where high pressure, high volume air is required. Seal areas are vented to atmosphere to relieve process pressure against the internal lip seals, and to provide oil-free air.TUTHILL PD Display image

Vertical & Horizontal Single-Envelope Gas Service: This series is utilized in such applications as closed loop pneumatic conveying, process gas handling, or elevated pressure applications up to 100 PSIG discharge. Vent openings are tapped and plugged to prevent gas leakage. These fittings can also accept an inert gas purge for positive containment of the process gas.

Vertical & Horizontal Double-Envelope Gas Service: This series is built to laboratory standards where virtually complete sealing is required. In addition to the features shown on the above series, the drive shaft is mechanically sealed and the oil sumps are plugged to provide an even higher degree of leakage protection.

Special Materials: Standard construction materials include cast iron housing, end plates, end covers with port fittings, and ductile iron rotors and shafts, while special materials available include stainless steel, carbon steel, or ductile iron models.

Special Testing: ASME PTC-9 (1 PSIG slip method), hydrostatic testing to 150 PSIG (10.35 bar g), pressure gas testing to 100 PSIG (6.9 bar g), and seal leakage testing. Bi-Protec® is available as a Nickel/Armoloy® special coating.

Optional Cooling Coils: All vertical flow 5500 PD PLUS models are available with cooling coils to provide cooling of lubricating oil with less than 0.5 GPM cooling water for high performance applications.

ModelCapacity (m³/hr)Power Required (kW)
320214-1531-6
320420-2481-10
320636-3741-3
321063-6261-21
400983-8451-34
4012148-11592-38
5507168-13502-52
5511258-19912-62
5514833-25873-71
5518596-33353-70
7010593-28733-107
7013757-36525-136
70171022-47725-169
70211331-59136-182
70261788-73341-180
9016602-51484-160
9020791-67765-209
90271054-90366-276
1215483-63995-202
1224804-102616-318
12301051-128288-370
12361311-154119-287
12482217-1576411-199
Overview CP Series Equaliser DF Equaliser RM PD Plus Qx Series

The Tuthill Qx 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.

Helical Gearing: Qx blowers utilize precision helical gears, keyed to the rotor shafts. Helical gears are quieter reducing mechanical noise.

Stronger Bearings: QX has larger bearings than any other blower in same gear sizes which can lead to longer life, offering L10 bearing life of up to 200,000 hours. They include double-ball bearings on the timing gear end. For additional strength, single roller bearings are used on the drive shaft end of the machine.

Lubrication: Qx blowers have oil lubrication on both ends with easy to view sight glasses allowing quick maintenance.

Seals: Qx blowers are fitted as standard with piston ring labyrinth process/oil seals. Piston ring seals provide high efficiency, long life and reliability. The oil chamber is vented to atmosphere providing oil-free air.

 

ModelCapacity (m³/hr)Power Required (kW)
320329-2792-14
320536-4332-20
320854-7022-31
4606166-9183-31
4610268-15245-50
6009486-18008-67
6015782-300212-131