QMX: Mixed-Flow Blowers

  • QMX
  • QMXE / QMXS / QMXE-HP / QMXS-HP
  • QMXU / QMXU-HP
  • Standard Construction Features
  • Standard Construction Features
  • Standard Construction Features
  • Certifications Logo
QMX

QMX

QMXE / QMXS / QMXE-HP / QMXS-HP

QMXE / QMXS / QMXE-HP / QMXS-HP

QMXU / QMXU-HP

QMXU / QMXU-HP

Standard Construction Features

Standard Construction Features

Standard Construction Features

Standard Construction Features

Standard Construction Features

Standard Construction Features

Certification logo

Certifications, vary by model

The QMX and QMX-HP are designed for supply, exhaust, or return air applications. Performance ranges from 500 to 119,500 CFM with static pressures to 9” w.g. The QMX is offered in 18 sizes from 90 to 600. With the Cook Contour® axial-centrifugal hybrid impeller, these mixed-flow fans are more efficient than traditional centrifugal units. This provides you the opportunity to reduce motor horsepower and fan sound levels while using a smaller unit. The QMX will replace traditional tubular centrifugal and vane axial fans in most applications. The QMX is an ideal solution for critical applications where low sound, high efficiency, or compact size are requirements.

  • The Cook Contour® mixed flow wheel combines the high airflow features of an axial fan with the pressure capabilities and static efficiency of a centrifugal blower.
  • The QMX utilizes a relatively large diameter wheel in a small housing which results in slower wheel speeds and quieter operation.
  • The QMX can be as many as two to three fan sizes smaller than an equivalent performing tubular inline blower resulting in significant space and cost savings.

The QMX was designed using the latest Computational Fluid Dynamics (CFD) software. This allowed our engineers to fully optimize the inlet, wheel and straightening vanes through over 200 design iterations. Once the design was optimized, physical prototypes verified the performance and durability of the design. The result is one of the quietest and most efficient fans in the industry.

Related Documents

See the Downloads tab for specifications, submittals and FanDrafter files

See also TCN
See also Lab Exhausts

  • QMX

  • QMX-HP

  • QMXE / QMXS

  • QMXE-HP / QMXS-HP

  • QMXU

  • QMXU-HP

  • Downloads

AC

LOREN COOK COMPANY certifies that the QMX shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program

Type QMX is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

Type QMX is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

Type QMX is available with UL listing for “Power Ventilator for Smoke Control Systems.”

QMX

Mixed-Flow
Inline Blower
Low Pressure

  • Slip fit duct connections are standard on both the inlet and outlet providing easy attachment of flexible connections.
  • Adjustable mounting feet on all horizontal units allows the motor position and floor/ceiling orientation to be easily adjusted in the field without additional parts or welding.
  • Universal mounting brackets are included on both the inlet and discharge of vertical units to allow for ceiling or floor mounting in either an upblast or downblast configuration.
  • Lifting lugs are provided at 120o locations around the perimeter of the fan to assist in handling, positioning and rotation of the fan in the field.
  • Also available in reduced length, Arrangement 3, where space is limited.
  • Access door is standard on Arrangement 3.

Description: Fan shall be a belt driven, tubular mixed-flow inline blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 705) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL 762) for US and Canada. For smoke control applications, fan shall be listed by Underwriters Laboratories (Power Ventilator for Smoke Control Systems) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance. Performance shall be licensed for both inlet and outlet sound.

Construction: The fan shall be of welded and bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 14 gauge Lorenized® steel with integral inlet and outlet collars for slip fit duct connections. Straightening vanes shall be included to assure maximum efficiency and low noise levels. Adjustable motor plate shall utilize threaded studs for positive belt tensioning. Copper extended lube lines shall be furnished for lubrication of fan bearings. Lifting lugs shall be provided for ease of installation. Adjustable mounting feet shall allow field adjustment of motor position. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Coating: Steel fan components shall be Lorenized® with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, high efficiency mixed-flow type. Contoured single thickness blades shall incorporate 3-D curvature for maximum efficiency across the entire surface of the blade. Blades shall be continuously welded to the backplate and inlet shroud. Hubs shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be Nema design B with class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure.

Blower Shaft: Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125% of maximum RPM.

Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower.

Product: Fan shall be model QMX as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Dimension-drawing

Size A B C D E F G H Shaft Dia. Max. Mtr. Frame Ship Wt
90 12-13/16 19-7/8 15-15/16 8-1/2 30 12-3/8 18-3/8 1/2 1 184T 127
120 17-1/16 24 20-1/16 10-1/2 36-1/2 15-1/2 22-1/2 1/2 1-3/16 213T 186
135 19-1/4 27 22-1/4 12 39-7/16 17-1/2 25-1/2 1/2 1-3/16 213T 253
150 21-3/8 30 24-3/8 13-3/16 42-1/16 18-3/4 28-5/8 1/2 1-3/16 215T 313
165 23-1/2 33 26-1/2 14-5/16 43-3/4 20-13/16 31-5/8 1/2 1-3/16 254T 367
180 25-5/8 35 28-5/8 15-1/2 46-1/4 22-13/16 33-5/8 9/16 1-3/16 254T 416
202 28-3/4 37-1/2 31-3/4 17-1/4 49-15/16 24-1/4 36-1/8 9/16 1-7/16 256T 513
225 31-15/16 41 34-15/16 19 55-13/16 26-15/16 39-5/8 9/16 1-7/16 284T 632
245 34-3/4 44-1/2 37-3/4 20-1/2 59 28-15/16 43-1/8 11/16 1-11/16 286T 744
270 38-5/16 47 41-5/16 22-7/16 62-7/8 31 45-5/8 11/16 1-15/16 286T 873
300 42-1/2 54 45-1/2 24-3/4 68-1/16 33-3/4 52-5/8 11/16 1-15/16 286T 1090
330 46-3/4 58-1/2 49-3/4 27 74-13/16 36-3/4 57-1/8 11/16 2-3/16 324T 1340
365 51-3/4 64 54-3/4 29-13/16 80-1/4 40-1/2 63-3/8 13/16 2-7/16 326T 1770
402 56-15/16 68-1/2 59-15/16 32-11/16 88-5/16 44 67-7/8 13/16 2-15/16 364T 2220
445 63-1/16 74 66-1/16 36 94-7/8 48-1/4 73-3/8 13/16 2-15/16 365T 2730
490 69-3/8 80-1/2 72-3/8 39-7/16 103-3/8 52-3/4 79-7/8 13/16 3-7/16 404T 3330
540 76-7/16 87 79-7/16 43-5/16 110-15/16 58 86-3/8 13/16 3-7/16 404T 3860
600 84-7/8 95-1/2 87-7/8 50 122-1/16 64 94-7/8 13/16 3-7/16 404T 4780
Weight, less motor, in a horizontal configuration .
AC

LOREN COOK COMPANY certifies that the QMX-HP shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and AMCA Publication 311 and comply with the requirements of the AMCA Certified Ratings Program

Type QMX-HP is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

Type QMX-HP is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

Type QMX-HP is available with UL listing for “Power Ventilator for Smoke Control Systems.”

QMX-HP

Mixed-Flow
Inline Blower
High Pressure

  • Slip fit duct connections are standard on both the inlet and outlet providing easy attachment of flexible connections.
  • Adjustable mounting feet on all horizontal units allows the motor position and floor/ceiling orientation to be easily adjusted in the field without additional parts or welding.
  • Universal mounting brackets are included on both the inlet and discharge of vertical units to allow for ceiling or floor mounting in either an upblast or downblast configuration.
  • Lifting lugs are provided at 120o locations around the perimeter of the fan to assist in handling, positioning and rotation of the fan in the field.
  • Also available in reduced length, Arrangement 3, where space is limited.
  • Access door is standard on Arrangement 3.

Description: Fan shall be a belt driven, tubular mixed-flow inline blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 705) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL 762) for US and Canada. For smoke control applications, fan shall be listed by Underwriters Laboratories (Power Ventilator for Smoke Control Systems) for US and Canada. Fan shall bear the AMCA Certified Ratings Seal for Sound and Air Performance. Performance shall be licensed for both inlet and outlet sound.

Construction: The fan shall be of welded and bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 14 gauge Lorenized® steel with integral inlet and outlet collars for slip fit duct connections. Straightening vanes shall be included to assure maximum efficiency and low noise levels. Adjustable motor plate shall utilize threaded studs for positive belt tensioning. Copper extended lube lines shall be furnished for lubrication of fan bearings. Lifting lugs shall be provided for ease of installation. Adjustable mounting feet shall allow field adjustment of motor position. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure, and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Coating: Steel fan components shall be Lorenized® with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, high efficiency mixed-flow type. Airfoil blades shall be continuously welded to the backplate and inlet shroud. Hubs shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans

Motor: Motor shall be Nema design B with class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure

Blower Shaft: Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125% of maximum RPM.

Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower.

Product: Fan shall be model QMX-HP as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Size A B C D E F G H Shaft Dia. Max. Mtr. Frame Ship Wt
90 12-13/16 19-7/8 15-15/16 8-1/2 30 12-3/8 18-3/8 1/2 1-3/16 184T 132
120 17-1/16 24 20-1/16 10-1/2 36-1/2 15-1/2 22-1/2 1/2 1-3/16 213T 189
135 19-1/4 27 22-1/4 12 39-7/16 17-1/2 25-1/2 1/2 1-3/16 213T 251
150 21-3/8 30 24-3/8 13-3/16 42-1/16 18-3/4 28-5/8 1/2 1-3/16 215T 324
165 23-1/2 33 26-1/2 14-5/16 43-3/4 20-13/16 31-5/8 1/2 1-7/16 254T 392
180 25-5/8 35 28-5/8 15-1/2 46-1/4 22-13/16 33-5/8 9/16 1-7/16 254T 436
202 28-3/4 37-1/2 31-3/4 17-1/4 49-15/16 24-1/4 36-1/8 9/16 1-11/16 256T 535
225 31-15/16 41 34-15/16 19 55-13/16 26-15/16 39-5/8 9/16 1-15/16 284T 678
245 34-3/4 44-1/2 37-3/4 20-1/2 59 28-15/16 43-1/8 11/16 1-15/16 286T 785
270 38-5/16 47 41-5/16 22-3/8 62-7/8 31 45-5/8 11/16 2-3/16 286T 909
300 42-1/2 54 45-1/2 24-11/16 66-5/8 33-3/4 52-5/8 11/16 2-3/16 286T 1130
330 46-3/4 58-1/2 49-3/4 27-1/16 73-5/16 36-3/4 57-1/8 11/16 2-7/16 324T 1400
365 51-3/4 64 54-3/4 29-13/16 78-3/4 40-1/2 63-3/8 13/16 2-15/16 326T 1950
402 56-15/16 68-1/2 59-15/16 32-11/16 87-9/16 44 67-7/8 13/16 3-7/16 364T 2320
445 63-1/16 74 66-1/16 36 94-7/8 48-1/4 73-3/8 13/16 3-7/16 365T 2830
490 69-3/8 80-1/2 72-3/8 39-3/16 103-3/8 52-3/4 79-7/8 13/16 3-15/16 404T 3460
540 76-7/16 87 79-7/16 43-3/16 110-15/16 58 86-3/8 13/16 3-15/16 404T 4000
Weight, less motor, in a horizontal configuration.
AC

Type QMXE & QMXS are furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

QMXE / QMXS

Mixed-Flow
Exhaust/Supply Blower
Low Pressure

  • QMXE is designed for roof top exhaust applications. QMXS is designed for roof top supply applications.
  • Slip fit duct connection is standard on the inlet providing easy duct connections.
  • Universal mounting brackets are included on both the inlet and discharge of vertical units to allow for ceiling or floor mounting in either an upblast or downblast configuration.
  • QMXE and QMXS include a motor cover for weather protection; Access door and belt tunnel are also standard.

Description: Fan shall be a belt driven, tubular mixed-flow exhaust (or supply) blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 705) for US and Canada.

Construction: The fan shall be of welded and bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 14 gauge Lorenized® steel with integral inlet collar for slip fit duct connections. Straightening vanes shall be included to assure maximum efficiency and low noise levels. Adjustable motor plate shall utilize threaded studs for positive belt tensioning. Copper extended lube lines shall be furnished for lubrication of fan bearings. Lifting lugs shall be provided for ease of installation. Fan shall have spun aluminum top cap(s) constructed of minimum .064 thick marine alloy aluminum to prevent rain infiltration. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Coating: Steel fan components shall be Lorenized® with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, high efficiency mixed-flow type. Contoured single thickness blades shall incorporate 3-D curvature for maximum efficiency across the entire surface of the blade. Blades shall be continuously welded to the backplate and inlet shroud. Hubs shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be Nema design B with class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure.

Blower Shaft: Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125% of maximum RPM.

Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower.

Product: Fans shall be model QMXE or QMXS as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Size A B C D E F G Duct Collar Max. Mtr. Frame  Ship. Wt.
QMXE QMXS QMXE QMXS
90 39-3/16 45-3/4 20 3 37-3/8 22-1/2 21-1/4 28-9/16 12-13/16 184T 230 251
120 39-5/8 46-11/16 24 3 53-5/8 25-3/8 24-3/8 32-13/16 17-1/16 213T 300 327
135 43-15/16 53-3/4 26 3 46-1/2 27-1/4 25-3/8 43-9/16 19-1/4 213T 376 418
150 46-15/16 56-3/4 30 3 51 28 26-1/8 43-9/16 21-3/8 215T 448 486
165 51-1/8 62-1/2 35 3 55 29-13/16 27-1/8 47-5/8 23-1/2 254T 531 587
180 57-3/4 71-13/16 37 3 57-3/4 30-3/4 28-1/8 52-5/8 25-5/8 254T 598 662
202 60-1/2 76-1/16 40 3 61-13/16 32-1/8 29-1/2 62-5/8 28-3/4 256T 721 805
225 64 79-9/16 43 3 68-1/8 35-1/2 33 62-5/8 31-15/16 284T 821 902
245 64-7/16 75-7/16 46 3 71-13/16 36-5/8 34-1/8 73-5/8 34-3/4 286T 994 1088
270 67-3/16 78-3/16 50 3 76-5/16 38 35-9/16 73-5/8 38-5/16 286T 1153 1238
300 74-1/2 85-9/16 54 3 82 40 37-5/8 73-5/8 42-1/2 286T 1349 1433

Weight, less motor.

AC

Type QMXE-HP & QMXS-HP are furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

QMXE-HP / QMXS-HP

Mixed-Flow
Exhaust/Supply Blower
High Pressure

  • QMXE is designed for roof top exhaust applications. QMXS is designed for roof top supply applications.
  • Slip fit duct connection is standard on the inlet providing easy duct connections.
  • Universal mounting brackets are included on both the inlet and discharge of vertical units to allow for ceiling or floor mounting in either an upblast or downblast configuration.
  • QMXE and QMXS include a motor cover for weather protection; Access door and belt tunnel are also standard.

Description: Fan shall be a belt driven, tubular mixed-flow exhaust (or supply) blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 705) for US and Canada.

Construction: The fan shall be of welded and bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 14 gauge Lorenized® steel with integral inlet collar for slip fit duct connections. Straightening vanes shall be included to assure maximum efficiency and low noise levels. Adjustable motor plate shall utilize threaded studs for positive belt tensioning. Copper extended lube lines shall be furnished for lubrication of fan bearings. Lifting lugs shall be provided for ease of installation. Fan shall have spun aluminum top cap(s) constructed of minimum .064 thick marine alloy aluminum to prevent rain infiltration. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Coating: Steel fan components shall be Lorenized® with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, high efficiency mixed-flow type. Airfoil blades shall be continuously welded to the backplate and inlet shroud. Hubs shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be Nema design B with class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure.

Blower Shaft: Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125% of maximum RPM.

Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower.

Product: Fans shall be model QMXE-HP or QMXS-HP as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Size A B C D E F G Duct Collar Max. Mtr. Frame  Ship. Wt.
QMXE QMXS QMXE QMXS
90 39-3/16 45-3/4 20 3 37-3/8 22-1/2 21-1/4 28-9/16 12-13/16 184T 235 256
120 39-5/8 46-11/16 24 3 53-5/8 25-3/8 24-3/8 32-13/16 17-1/16 213T 303 330
135 43-15/16 53-3/4 26 3 46-1/2 27-1/4 25-3/8 43-9/16 19-1/4 213T 374 416
150 46-15/16 56-3/4 30 3 51 28 26-1/8 43-9/16 21-3/8 215T 459 497
165 51-1/8 62-1/2 35 3 55 29-13/16 27-1/8 47-5/8 23-1/2 254T 556 612
180 57-3/4 71-13/16 37 3 57-3/4 30-3/4 28-1/8 52-5/8 25-5/8 254T 618 682
202 60-1/2 76-1/16 40 3 61-13/16 32-1/8 29-1/2 62-5/8 28-3/4 256T 743 827
225 64 79-9/16 43 3 68-1/8 35-1/2 33 62-5/8 31-15/16 284T 867 948
245 64-7/16 75-7/16 46 3 71-13/16 36-5/8 34-1/8 73-5/8 34-3/4 286T 1035 1129
270 67-3/16 78-3/16 50 3 76-5/16 38 35-9/16 73-5/8 38-5/16 286T 1189 1274
300 74-1/2 85-9/16 54 3 82 40 37-5/8 73-5/8 42-1/2 286T 1389 1473

Weight, less motor.

AC

Type QMXU is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

Type QMXU is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

QMXU

Mixed-Flow
Upblast Blower
Low Pressure

  • QMXU is designed for roof top exhaust applications.
  • Slip fit duct connection is standard on the inlet providing easy duct connections.
  • QMXU includes motor cover for weather protection. Belt tunnel, access door and drain are also standard.
  • Integral butterfly dampers are provided to prevent backflow into the building.

Description: Fan shall be a belt driven, tubular mixed-flow upblast blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 705) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL 762) for US and Canada.

Construction: The fan shall be of welded and bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 14 gauge Lorenized® steel with integral inlet collar for slip fit duct connections. Straightening vanes shall be included to assure maximum efficiency and low noise levels. Adjustable motor plate shall utilize threaded studs for positive belt tensioning. Copper extended lube lines shall be furnished for lubrication of fan bearings. Lifting lugs shall be provided for ease of installation. Fan shall have hinged butterfly discharge dampers of aluminum or steel construction with a rain gutter to prevent rain infiltration. The damper assembly shall be protected by a continuously welded steel windband of minimum 18 gauge steel with flanges for maximum strength and rigidity. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Coating: Steel fan components shall be Lorenized® with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, high efficiency mixed-flow type. Contoured single thickness blades shall incorporate 3-D curvature for maximum efficiency across the entire surface of the blade. Blades shall be continuously welded to the backplate and inlet shroud. Hubs shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be Nema design B with class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure.

Blower Shaft: Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125% of maximum RPM.

Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower.

Product: Fan shall be model QMXU as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Size A B C D E F G Shaft Dia. Max. Mtr. Frame Ship Wt
90 40-9/16 20 3 37-3/8 22-1/2 21-1/4 15 12-13/16 184T 263
120 45-11/16 24 3 43-5/8 25-3/8 24-3/8 17 17-1/16 213T 346
135 49-11/16 26 3 46-1/2 27-1/4 25-3/8 18 19-1/4 213T 421
150 54-11/16 30 3 51 28 26-1/8 20 21-3/8 215T 503
165 58-11/16 35 3 55 29-13/16 27-1/8 21 23-1/2 254T 589
180 61-11/16 37 3 57-3/4 30-3/4 28-1/8 22 25-5/8 254T 652
202 65-11/16 40 3 61-13/16 32-1/8 29-1/2 23-1/2 28-3/4 256T 773
225 70-11/16 43 3 68-1/8 35-1/2 33 25 31-15/16 284T 890
245 76-5/8 46 3 71-13/16 36-5/8 34-1/8 27 34-3/4 286T 1074
270 80-7/8 50 3 76-5/16 38 35-9/16 28-1/2 38-5/16 286T 1251
300 90-1/4 54 3 82 40 37-5/8 30-1/2 42-1/2 286T 1468
330 86-3/4 58 3 89-1/4 44-5/8 41-11/16 32-1/2 46-3/4 324T 1757
365 104-7/8 64 3 96-1/4 46-5/8 43-5/8 35 51-3/4 326T 2349
402 112-3/8 69 3 105 52 48-3/8 38 56-15/16 364T 2960
445 120-7/8 75 3 112-7/16 54-3/8 50-11/16 41 63-1/16 365T 3514
490 131-3/8 82 4 122-1/2 59-5/8 55-1/16 44 69-3/8 404T 4274
540 141-7/8 90 4 131-7/8 62-1/4 57-3/4 48 76-7/16 404T 4908
600 154-3/8 98 4 142 65-1/2 61 52 84-7/8 404T 5920
Weight, less motor, in a horizontal configuration.

Type QMXU-HP is furnished standard with UL 705 & cUL 705 listing (Power Ventilator/ZACT) when furnished with factory supplied motor.

Type QMXU-HP is available with UL 762 and cUL 762 listing (Power Ventilator for Restaurant Exhaust Appliances/Y2HW).

QMXU-HP

Mixed-Flow
Upblast Blower
High Pressure

  • QMXU-HP is designed for roof top exhaust applications.
  • Slip fit duct connection is standard on the inlet providing easy duct connections.
  • QMXU-HP includes motor cover for weather protection. Belt tunnel, access door and drain are also standard.
  • Integral butterfly dampers are provided to prevent backflow into the building.

Description: Fan shall be a belt driven, tubular mixed-flow upblast blower.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be listed by Underwriters Laboratories (UL/cUL 705) for US and Canada. For restaurant applications, fan shall be listed by Underwriters Laboratories (UL/cUL 762) for US and Canada.

Construction: The fan shall be of welded and bolted construction utilizing corrosion resistant fasteners. Housing shall be minimum 14 gauge Lorenized® steel with integral inlet collar for slip fit duct connections. Straightening vanes shall be included to assure maximum efficiency and low noise levels. Adjustable motor plate shall utilize threaded studs for positive belt tensioning. Copper extended lube lines shall be furnished for lubrication of fan bearings. Lifting lugs shall be provided for ease of installation. Fan shall have hinged butterfly discharge dampers of aluminum or steel construction with a rain gutter to prevent rain infiltration. The damper assembly shall be protected by a continuously welded steel windband of minimum 18 gauge steel with flanges for maximum strength and rigidity. Unit shall bear an engraved aluminum nameplate. Nameplate shall indicate design CFM, static pressure and maximum fan RPM. Unit shall be shipped in ISTA Certified Transit Tested Packaging.

Coating: Steel fan components shall be Lorenized® with an electrostatically applied, baked polyester powder coating. Each component shall be subject to a five stage environmentally friendly wash system, followed by a minimum 2 mil thick baked powder finish. Paint must exceed 1,000 hour salt spray under ASTM B117 test method.

Wheel: Wheel shall be steel, non-overloading, high efficiency mixed-flow type. Airfoil blades shall be continuously welded to the backplate and inlet shroud. Hubs shall be keyed and securely attached to the fan shaft. Wheel shall overlap an aerodynamic aluminum inlet cone to provide maximum performance and efficiency. Wheel shall be balanced in accordance with AMCA Standard 204-05, Balance Quality and Vibration Levels for Fans.

Motor: Motor shall be Nema design B with class B insulation rated for continuous duty and furnished at the specified voltage, phase and enclosure.

Blower Shaft: Blower shaft shall be AISI C-1045 hot rolled and accurately turned, ground and polished. Shafting shall be sized for a critical speed of at least 125% of maximum RPM.

Bearings: Bearings shall be designed and tested specifically for use in air handling applications. Construction shall be heavy duty regreasable ball or roller type in a cast iron pillow block housing selected for a minimum L50 life in excess of 200,000 hours at maximum cataloged operating speed.

Belts and Drives: Belts shall be oil and heat resistant, static conducting. Drives shall be precision machined cast iron type, keyed and securely attached to the wheel and motor shafts. Drives shall be sized for 150% of the installed motor horsepower.

Product: Fan shall be model QMXU-HP as manufactured by LOREN COOK COMPANY of Springfield, Missouri.

Dimensions (Inches)

Size A B C D E F G Shaft Dia. Max. Mtr. Frame Ship Wt
90 40-9/16 20 3 37-3/8 22-1/2 21-1/4 15 12-13/16 184T 268
120 45-11/16 24 3 43-5/8 25-3/8 24-3/8 17 17-1/16 213T 349
135 49-11/16 26 3 46-1/2 27-1/4 25-3/8 18 19-1/4 213T 419
150 54-11/16 30 3 51 28 26-1/8 20 21-3/8 215T 514
165 58-11/16 35 3 55 29-13/16 27-1/8 21 23-1/2 254T 614
180 61-11/16 37 3 57-3/4 30-3/4 28-1/8 22 25-5/8 254T 672
202 65-11/16 40 3 61-13/16 32-1/8 29-1/2 23-1/2 28-3/4 256T 795
225 70-11/16 43 3 68-1/8 35-1/2 33 25 31-15/16 284T 936
245 76-5/8 46 3 71-13/16 36-5/8 34-1/8 27 34-3/4 286T 1115
270 80-7/8 50 3 76-5/16 38 35-9/16 28-1/2 38-5/16 286T 1287
300 90-1/4 54 3 82 40 37-5/8 30-1/2 42-1/2 286T 1508
330 86-3/4 58 3 89-1/4 44-5/8 41-11/16 32-1/2 46-3/4 324T 1817
365 104-7/8 64 3 96-1/4 46-5/8 43-5/8 35 51-3/4 326T 2529
402 112-3/8 69 3 105 52 48-3/8 38 56-15/16 364T 3060
445 120-7/8 75 3 112-7/16 54-3/8 50-11/16 41 63-1/16 365T 3614
490 131-3/8 82 4 122-1/2 59-5/8 55-1/16 44 69-3/8 404T 4404
540 141-7/8 90 4 131-7/8 62-1/4 57-3/4 48 76-7/16 404T 5048
Weight, less motor, in a horizontal configuration.