IMH: Industrial Material Handler

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IMH

IMH

IMH

IMH

AMCA-Sound & Air Cert. logo

ISO 9001, US-Green, AMCA, CSA, US-C-UL, and logos

Cook industrial material handler provides for continuous movement of material-laden air. It is well suited for installations involving exhaust, material conveying, pollution control, air circulation and a variety of other uses. Type IMH fans are available in standard arrangements 1, 4, 8, 9, and 10 and in special designs by consultation with the factory. Standard duty construction allows for operation up to 12,000 FPM tip speed. Heavy duty designs include tip speeds to 20,000 FPM. Type IMH is available with a full range of accessories allowing it to be adapted to many different applications.

  • All sizes and arrangements can be field rotated to any of the standard discharge positions. In addition, models MH and MHR can be reversed in the field to obtain clockwise or counter-clockwise rotation. Models MHA and MHB cannot be reversed.
  • All units have continuously welded housings for leak-free operation.
  • All sizes are provided with lifting lugs for ease of handling.
  • The bearing pedestal is securely bolted to the scroll to allow field rotation and reversing if required.
  • Standard bearings are grease lubricated and self-aligning ball or spherical roller type selected for a minimum of 200,000 hours average life.
  • Standard shafting is minimum AISI-C-1045 turned, ground and polished steel sized for critical speed or at least 125 percent of cataloged maximum speed.
Related Documents

See the Downloads tab for specifications, submittals and FanDrafter files

See also CP
See also CA CF

  • MH

  • MHR

  • MHB

  • MHA

  • Downloads

DB

Loren Cook Company certifies that the MH shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.

Type MH is furnished standard Classified by UL (as to electrical shock and mechanical hazards only) when furnished with factory supplied motor.

MH

Industrial Material Handler
Radial Blade Belt Driven
Single Width, Single Inlet

  • The MH wheel is used for light material conveying applications when the airstreams contain small granular material, heavy or tacky dust, or small abrasive particulate matter. It is available in standard and heavy duty designs.

Description: Fan shall be a single width, single inlet radial blade, belt driven industrial material handler.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be Underwriters Laboratories Classified (as to electrical shock and mechanical hazards only) and CSA Certified (Standard 113-M1984). Fan shall bear the AMCA certified ratings seal for air performance.

Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper and scroll side panels shall be a minimum 10 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall be field rotatable to any one of eight discharge positions. Housing side panels shall be rigidly reinforced using structural steel to prevent flexing and vibration at high pressures. Bearing support shall be minimum 1/4" welded steel. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate and shall be shipped in ISTA certified transit tested packaging.

Coating: All 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 radial blade open type. Blades shall be minimum 7 gauge steel continuously welded to the hub and aerodynamic gusset. Hub shall be keyed and securely attached to the fan shaft utilizing four setscrews. 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 percent 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 and 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 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model MH as manufactured by Loren Cook Company of Springfield, Missouri.

TDB

Type MHR is furnished standard Classified by UL (as to electrical shock and mechanical hazards only) when furnished with factory supplied motor.

MHR 

Industrial Material Handler Reinforced Radial Blade
Belt Driven
Single Width, Single Inlet

  • The MHR wheel is used for heavier material conveying applications when larger/heavier particles are to be conveyed (similar to MH with heavier material and reinforcing rims for additional strength). Available in standard and heavy duty designs.

Description: Fan shall be a single width, single inlet reinforced radial blade, belt driven industrial material handler.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be Underwriters Laboratories Classified (as to electrical shock and mechanical hazards only) and CSA Certified (Standard 113-M1984).

Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper and scroll side panels shall be a minimum 10 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall be field rotatable to any one of eight discharge positions. Housing side panels shall be rigidly reinforced using structural steel to prevent flexing and vibration at high pressures. Bearing support shall be minimum 1/4" welded steel. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate and shall be shipped in ISTA certified transit tested packaging.

Coating: All 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, reinforced rim radial blade type. Blades shall be minimum 7 gauge steel continuously welded to the hub, aerodynamic gusset and minimum 10 gauge reinforcing rims. Hubs shall be keyed and securely attached to the fan shaft utilizing four setscrews. 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 percent 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 and 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 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model MHR as manufactured by Loren Cook Company of Springfield, Missouri.

DBX

Loren Cook Company certifies that the MHB shown herein are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 211 and comply with the requirements of the AMCA Certified Ratings Program.

Type MHB is furnished standard Classified by UL (as to electrical shock and mechanical hazards only) when furnished with factory supplied motor.

MHB 

Industrial Material Handler Backplated Radial Blade
Belt Driven
Single Width, Single Inlet

  • The MHB is used for conveying long, stringy, or fibrous materials. This impeller construction will not allow paper shreddings, threads, etc. to wrap around the hub and blades. Available in standard and heavy duty designs.

Description: Fan shall be a single width, single inlet backplated radial blade, belt driven industrial material handler.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be Underwriters Laboratories Classified (as to electrical shock and mechanical hazards only) and CSA Certified (Standard 113-M1984). Fan shall bear the AMCA certified ratings seal for air performance.

Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper and scroll side panels shall be a minimum 10 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall be field rotatable to any one of eight discharge positions. Housing side panels shall be rigidly reinforced using structural steel to prevent flexing and vibration at high pressures. Bearing support shall be minimum 1/4" welded steel. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate and shall be shipped in ISTA certified transit tested packaging.

Coating: All 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, backplated radial blade type. Blades shall be minimum 7 gauge steel continuously welded to the hub, aerodynamic gusset and minimum 1/4” backplate. Hubs shall be keyed and securely attached to the fan shaft utilizing four setscrews. 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 percent 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 and 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 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be type MHB as manufactured by Loren Cook Company of Springfield, Missouri.

TDBX

Loren Cook Company certifies that the MHA shown herein are 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 MHA is furnished standard Classified by UL (as to electrical shock and mechanical hazards only) when furnished with factory supplied motor.

MHA 

Industrial Material Handler
Backward Inclined Flat Blade Belt Driven
Single Width, Single Inlet

  • The MHA wheel is used for clean air, fumes, high temperature or light dust applications. This design delivers higher efficiencies and lower operating costs than radial bladed wheels due to its flat backward inlclined blades. Continuously welded, heavy guage construction provides a long service life over a broad operating range.

Description: Fan shall be a single width, single inlet radial blade, belt driven industrial material handler.

Certifications: Fan shall be manufactured at an ISO 9001 certified facility. Fan shall be Underwriters Laboratories Classified (as to electrical shock and mechanical hazards only) and CSA Certified (Standard 113-M1984). Fan shall bear the AMCA certified ratings seal for air and sound performance.

Construction: The fan shall be of bolted and welded construction utilizing corrosion resistant fasteners. The scroll wrapper and scroll side panels shall be a minimum 10 gauge steel. The entire fan housing shall have continuously welded seams for leakproof operation and shall be field rotatable to any one of eight discharge positions. Housing side panels shall be rigidly reinforced using structural steel to prevent flexing and vibration at high pressures. Bearing support shall be minimum 1/4" welded steel. Lifting lugs shall be provided for ease of installation. Unit shall bear an engraved aluminum nameplate and shall be shipped in ISTA certified transit tested packaging.

Coating: All 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 centrifugal backward inclined, flat blade type. Blades shall be continuously welded to the backplate and inlet shroud. Wheel hub shall be keyed and securely attached to the fan shaft. 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 percent 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 and 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 percent of the installed motor horsepower. The variable pitch motor drive must be factory set to the specified fan RPM.

Product: Fan shall be model MHA as manufactured by Loren Cook Company of Springfield, Missouri.

Dimensions (Inches) THE SAME FOR EACH IMH MODEL

Arrangement 10 and 9

(Arrangement 9 shown)IMH dimension drawingdimension drawing
Size A  B C D E F G H J K L M N P Q R
70 6-5/8 5-7/8 7 14-1/4 9-11/16 21-1/16 26-1/4 24-13/16 4 9-3/16 9-11/16 8-5/16 10-9/16 9/16 - 14-7/8
90 8-7/16 7-1/2 9 15-1/4 9-11/16 21-7/8 27-7/8 28-3/4 4 9-3/16 12-5/16 10-5/8 13-1/2 9/16 - 14-7/8
110 10-3/8 9-1/8 11 18-3/4 9-11/16 25 32-7/8 35-3/16 4 9-3/16 15-1/16 13 16-7/16 9/16 8-1/4 16-1/2
130 12-3/16 10-7/8 13 21-3/4 11-3/4 26-3/16 34-7/8 41-3/16 5 11 17-13/16 15-3/8 19-7/16 11/16 8-3/8 16-3/4
150 14-1/16 12-9/16 15 25-1/4 13 31-3/4 41-5/16 47-5/8 5 12-1/4 20-5/8 17-3/4 22-3/8 11/16 10-3/4 21-1/2
170 16 14-1/4 17 28-1/4 13-7/8 32-9/16 43 53-5/8 6 13-1/8 23-3/4 20-1/8 25–3/8 11/16 10-3/4 21-1/2
190 17-13/16 15-7/8 19 31-1/4 15-5/16 34-11/16 46 59-1/2 6 14-9/16 25-15/116 22-7/16 28-1/4 11/16 11-3/8 22-3/4
210 19-3/4 17-9/16 21 34-1/2 16-9/16 38-1/4 50-3/8 65-3/4 6 15-13/16 28-1/2 23 31-1/4 11/16 12-3/4 25-1/2
230 21-5/8 19-1/4 23 37-1/2 18-13/16 41-1/8 55-1/4 71-13/16 7 17-9/16 31-1/4 26 34-5/16 13/16 13-7/16 26-7/8
260 24–7/16 21-3/4 26 41-3/4 20-5/8 43-15/16 58-11/16 82-15/16 7 19-3/8 35-1/8 29 41-3/16 13/16 13-7/8 27-3/4
290 27-5/16 24-1/4 29 46-1/2 22-1/2 45-9/16 62-3/16 92-1/2 8 21-1/4 39-1/2 31-3/4 45-7/8 13/16 14-3/8 28-3/4
Size S T U W X Y Z AA BB Max.Motor Frame* Approx. Ship Wt. Lbs. less mtr.**
Standard Heavy Duty Standard Heavy Duty
70 4-1/4 1-3/16 1-7/16 6-3/16 6 10-1/8 9-1/4 13-3/8 8-13/16 8-3/8 184T 239 275
90 5-1/16 1-7/16 1-11/16 7 6 12-15/18 11-3/4 17-1/16 11-3/16 10-5/8 184T 318 366
110 6-1/2 1-7/16 1-15/16 8-13/16 8 15-3/4 14-7/16 20-13/16 13-3/4 13-1/16 215T 424 488
130 7-3/8 1-11/16 2-3/16 9-13/16 8 18-5/8 17 24-5/8 16-3/16 15-3/8 215T 558 642
150 8-7/32 1-15/16 2-7/16 10-11/16 8 21-1/2 19-3/4 28-3/8 18-7/8 18 256T 720 828
170 9-1/16 2-3/16 2-7/16 11-1/12 8 24-9/16 22-1/2 32-3/16 21-1/4 20-1/4 256T 910 1046
190 9-15/16 2-7/16 2-15/16 12-5/16 8 27-1/8 24-7/8 35-13/16 23-3/4 22-5/8 256T 1127 1296
210 10-21/23 2-7/16 2-15/16 13-3/16 8 29-7/8 27-1/8 38-3/8 25-3/4 24-3/8 326T 1372 1578
230 12-5/16 2-11/16 3-7/16 15-1/8 8 32-13/16 29-13/16 42-5/8 28-5/16 26-13/16 326T 1645 1892
260 13-9/16 2-11/16 3-7/16 16-3/8 8 38-3/16 33-1/2 49-5/8 31-7/8 30-1/4 326T 2107 2423
290 14-13/16 2-15/16 3-7/16 17-5/8 8 42-11/16 37-5/8 54-7/8 35-3/4 33-7/8 326T 2630 3025
*Applies to Arrangement 9 only based on single speed ODP motor. **Shipping weights for Arrangement 1 MH model given.

Arrangement 8

 dimension drawing
Size A  B C D E F * G * H J K L M N P Q R
70 6-5/8 5-7/8 7 14-1/4 9-11/16 49-15/16 55-1/8 24-13/16 4 9-3/16 9-11/16 8-5/16 10-9/16 9/16 - 4-1/4
90 8-7/16 7-1/2 9 15-1/4 9-11/16 53-9/16 59-9/16 28-3/4 4 9-3/16 12-5/16 10-5/8 13-1/2 9/16 - 5-1/16
110 10-3/8 9-1/8 11 18-3/4 9-11/16 57-3/4 65-5/8 35-3/16 4 9-3/16 15-1/16 13 16-7/16 9/16 8-1/4 6-1/2
130 12-3/16 10-7/8 13 21-3/4 11-3/4 61-7/16 70-1/8 41-3/16 5 11 17-13/16 15-3/8 19-7/16 11/16 8-3/8 7-3/8
150 14-1/16 12-9/16 15 25-1/4 13 69-1/4 78-13/16 47-5/8 5 12-1/2 20-5/8 17-3/4 22-3/8 11/16 10-3/4 8-7/32
170 16 14-1/4 17 28-1/4 13-7/8 74-3/16 84-5/8 53-5/8 6 13-1/8 23-3/4 20-1/8 25-3/8 11/16 10-3/4 9-1/16
190 17-13/16 15-7/8 19 31-1/4 15-5/16 77-13/16 89-1/8 59-1/2 6 14-9/16 25-15/16 22-7/16 28-1/4 11/16 11/38 9-15/16
210 19-3/4 17-9/16 21 34-1/2 16-9/16 85-1/2 97-5/8 65-3/4 6 15-13/16 28-1/2 23 31-1/4 11/16 12-3/4 10-21/32
230 21-5/8 19-1/4 23 37-1/2 18-13/16 89-3/8 103-1/2 71-13/16 7 17-9-16 31-1/4 26 34-5/16 13/16 13-7/16 12-5/16
260 24-7/16 21-3/4 26 41-3/4 20-5/8 94-3/16 108-15/16 82-15/16 7 19-3/8 35-1/8 29 41-3/16 13/16 13-7/8 13-9/16
290 27-5/16 24-1/4 29 46-1/2 22-1/2 96-13/16 113-7/16 92-1/2 8 21-1/4 39-1/2 31-3/4 45-7/8 13/16 14-3/8 14-13/16
Size S * T U * W X Y Z AA BB CC Max.Motor Frame* Approx. Ship Wt. Lbs. less mtr.**
Standard Heavy Duty Standard Heavy Duty Standard Heavy Duty
70 - 14-7/8 24-7/8 6-3/16 6 10-1/8 9-1/4 1-3/16 1-7/16 8-13/16 8-3/8 13-3/8 184T 287 330
90 - 14-7/8 27-11/16 7 6 12-15/16 11-3/4 1-7/16 1-11/16 11-3/16 10-5/8 17-1/16 215T 382 439
110 14-3/8 16-1/2 28-3/4 8-13/16 8 15-3/4 14-7/16 1-7/16 1-15/16 13-3/4 13-1/16 20-13/16 256T 509 585
130 15-5/8 16-3/4 31-1/4 9-13/16 8 18-5/8 17 1-11/16 2-3/16 16-3/16 15-3/8 24-5/8 284T 670 770
150 16-3/4 21-1/2 33-1/2 10-11/16 8 21-1/2 19-3/4 1-15/16 2-7/16 18-7/8 18 28-3/8 286T 864 994
170 18-13/16 21-1/2 37-5/8 11-1/2 8 24-9/16 22-1/2 2-3/16 2-7/16 21-1/4 20-1/4 32-3/16 324T 1092 1255
190 19-9/16 22-3/4 39-1/8 12-5/16 8 27-1/8 24-7/8 2-7/16 2-15/16 23-3/4 22-5/8 35-13/16 364T 1353 1555
210 21-5/8 25-1/2 43-1/4 13-3/16 8 29-7/8 27-1/8 2-7/16 2-15/16 25-3/4 24-3/8 38-3/8 404T 1647 1894
230 22-1/8 26-7/8 44-1/4 15-1/8 8 32-13/16 29-13/16 2-11/16 3-7/16 28-5/16 26-13/16 42-5/8 405T 1974 2270
260 23-1/8 27-3/4 46-1/4 16-3/8 8 38-3/16 33-1/2 2-11/16 3-7/16 31-7/8 30-1/4 49-5/8 444T 2528 2907
290 23-5/8 28-3/4 47-1/4 17-5/8 8 42-11/16 37-5/8 2-15/16 3-7/16 35-3/4 33-7/8 54-7/8 444T 3157 3630
* F, G S and U vary with motor size. Consult factory for exact dimensions. **Shipping weights for MH model given