EF-985UB Exhaust Fan Automatic Wall-Mounted

Specifications

The parameters above cover what buyers compare when searching oem exhaust fan.

Will it fit my vehicle?

How to identify the correct unit: locate the reference number stamped on your original component or in the vehicle parts catalogue, then cross-check it against the number below before ordering. Trim and market variants exist for many applications, so the short check is worth the minute before checkout.

How to identify & confirm fitment in 4 steps

1. Locate the OE / reference number on your old part or in the vehicle parts catalogue.
2. Match it to EF-985UB shown on this page.
3. Send your VIN and engine code plate so our team runs an exact-fit check.
4. Receive fitment confirmation before we dispatch your order.

Cross-reference coverage for exhaust fan fitment is listed above; confirm your VIN before ordering.

Product overview

A direct-fit compatible replacement referenced by EF-985UB for the applications listed in the fitment block.

Why this unit sells

Buyers searching heavy hammer exhaust fan and swung drop hammer fan look for the strengths listed here: direct fit, verified reference and wholesale packing.

Application & fitment

The fitment block above lists the markets and model families this reference is stocked for, so buyers can match demand without re-checking every listing.

Engineering notes

Technical background. Dairy barn duty stresses fans differently from poultry duty. Humid, manure-laden air corrodes housings and fouls motors first, so an overheated motor or a tripped thermal protector is often corroded cooling fins plus dust rather than a winding fault. Bearing noise develops earlier where wash-down water reaches the seals; slanted, self-draining housings exist specifically to deny water and debris a place to pool. Airflow decay in greenhouses usually traces to dirt films on impellers fed by evaporative pad drift. Fan systems without drainage holes trap condensate, freeze in winter, and can shear blades on restart.

Application context. Installation in dairy and greenhouse buildings starts with structure: 48-55 inch units need framed openings and firm attachment because vibration is continuous. Mount with the housing slanted and drainage holes at the low point so wash water and condensate exit instead of pooling. Inside shutters or cones belong on the intake side, which published tests show gains 5-10 percent airflow over exterior shutters. In cross-ventilated barns, distribute fans along one wall for uniform air exchange; in tunnel mode, place them at the end wall and verify the closed position blocks wind-driven backdrafts between milkings.

Deep dive. Maintenance in dairy buildings follows the wash-down calendar. Rinse housings and impellers on the schedule the parlor is washed, using materials that tolerate it – corrosion-resistant SMC fiberglass housings and poly propellers are documented for exactly this reason. Check that drainage holes stay open; a blocked drain turns a housing into a bath. Sealed maintenance-free bearings still deserve a monthly listen for roughness. Where direct-drive motors are fitted, the absence of belts removes greasing and tensioning entirely, leaving cleaning, fastener checks, and an annual electrical inspection with attention to IP66 gland seals.

Technical background. Specification differences between dairy-class fans are concrete. Drive: belt-driven 55 inch units deliver about 28,900 CFM at 0.10 in. H2O, while 4.0 kW permanent-magnet direct-drive units reach higher outputs with no belts, pulleys, or bearings to service – a real labor saving across the fan count of a 200-cow barn. Motor enclosure: IP66 totally enclosed designs are documented for wash-down agriculture. Propeller: poly resists corrosion while galvanized steel carries a lower first cost. Efficiency: high-efficiency models exceed 23 CFM/watt, and FEI values near 2.0 are published for the class.

Deep dive. Dairy ventilation numbers come from the same livestock engineering base as poultry, with different targets. Ontario guidance places tunnel air speed at 1.0-2.5 m/s over the animals, and dairy operators use circulation and tunnel fans to hold barn temperature near 15-22 C, the band documented to protect milk yield. Fans are rated at operating static pressure rather than free air, and independent laboratory curves remain the comparable basis. Greenhouse applications borrow industrial practice instead, using the same frame sizes to purge heat and humidity; both uses reward published performance data over nominal blade diameter.

Technical background. The buyer profile splits between two channels. Dairy integrators and barn builders buy 48-55 inch units in multiples for cross-ventilated freestall barns and holding areas, sizing for summer heat relief and specifying wash-down-compatible materials; herd size, the milk-yield sensitivity of breeds to heat stress, and service reach drive the decision. Greenhouse turnkey contractors buy the same frame sizes to purge humidity and heat, often requesting variable-speed control matched to climate computers. Both groups favor suppliers who document airflow at static pressure, offer drainage and corrosion options, and support export voltages.

Technical background. Dairy and greenhouse fans accumulate hours fast, so track the wear chain: motor bearings announce themselves with grinding or vibration years before failure, a weak run capacitor shows up as slow starting in humid weather, and any shutter or guard mesh clogged with feed dust steals airflow silently. Barn maintenance guides suggest bearings every 2 to 4 years and motors far longer when kept clean and dry. Replace matched items together, such as a capacitor whenever a motor is swapped, and guards when blades are changed, so an old part does not undermine the new one.

Field note. Dairy barns and greenhouses are usually reached through mixed logistics, so plan handling: keep the crate upright, pad the impeller so blades cannot press against foam or strapping, and never stack crates on the guard side. Long trips through humid climates can put moisture into windings; store motors off concrete floors and add desiccant inside pallet wrap. After arrival, spin the impeller by hand and check that blade tips clear the ring evenly. Give a fan that traveled from a cold container a night at ambient temperature before the first start, so condensation evaporates.

Application context. Hanging and wall-mounted agricultural fans need tools for height work as much as for the fan itself: ladders or a lift, chain or cable hangers rated for the unit's weight, spring hooks or shackles, and a level so airflow aims where cattle or crops stand. Electrically, bring a multimeter to confirm the supply and a torque driver for terminal screws, since vibration turns loose connections into heat. For greenhouse installs, keep sealing tape for duct or sleeve joints. Add safety cable as a second support wherever a fan hangs over animals, walkways, or benches.

Deep dive. Barn air is aggressive: ammonia and hydrogen sulfide from manure plus constant humidity rust standard sheet metal, strip zinc coatings, and pit motor shafts, while washdown chemicals and high-pressure hoses find any weak gasket. Greenhouse air adds fertilizer vapor and constant moisture. Favor sealed motors with good ingress protection and non-metallic or stainless components, wipe rather than blast the motor, and re-check fasteners after each washdown cycle because vibration plus soap works them loose. Dust from feed and bedding collects on blades and cooling fins; clean it weekly to keep airflow and motor temperature stable.

Deep dive. A barn or greenhouse rarely needs one fan, it needs matched rows, so buying becomes a batch problem. Before accepting a production lot, review factory test sheets covering run current, insulation resistance, vibration, and impeller balance for sampled units, and confirm nameplate consistency across the shipment. Keep your own receiving log: sample one unit per pallet for noise, hand-spin, and guard fit, and record motor and capacitor batch codes. Buy spares against the same lot, including capacitors, hanger hardware, and guard meshes, so every unit in a row shares one maintenance schedule and one set of traceable documents.

Technical background. Adaptation errors in this category are geometric and electrical. Geometrically, check whether the published dimension is the blade circle, the housing, or the required opening; hanging fans also need clearance below the ceiling and above the target zone, which changes the model you can use per bay. Electrically, dairy sites often run three-phase 380-480 V while greenhouses use single-phase 220-240 V, and speed controllers must match the motor type, since a simple voltage dimmer on the wrong motor hums and overheats. Confirm mounting orientation too: some units are rated for wall duty only, not ceiling suspension.

Application note. Dairy tunnel ventilation targets 1.0-2.5 m/s air speed over the animals, with barn temperatures of 15-22 C documented as the band that protects milk yield.

Supply note. Belt-driven 55 inch dairy-class fans deliver about 28,900 CFM at 0.10 in. H2O static pressure, driven by 2 HP totally enclosed torque-drive motors.

Workshop note. IP66 totally enclosed permanent-magnet direct-drive motors with integrated variable-speed drivers are documented for dairy barn duty, eliminating belts, pulleys, bearings, and tensioners.

Workshop note. Slanted self-draining housings with drainage holes are documented dairy fan features that prevent water and ice buildup in wash-down and cold environments.

Workshop note. SMC fiberglass housings and poly propellers resist corrosion from manure gases and wash water; interior shutters and discharge cones each add 5-10 percent airflow versus exterior shutters.

The engineering notes above compile verified reference, material and application data for aftermarket exhaust fan and compatible exhaust fan.

Warranty & support

12 Months limited warranty against manufacturing defects. Coverage applies to correctly installed units; keep the batch date code so any claim is processed against its inspection record. Shutter, motor and mounting questions are answered by our team before dispatch.

Why buyers pick Vidishi Auto

Exhaust Fan — Exhaust Fan. Supplied under Vidishi Auto with batch traceability and trade-grade packing; volume pricing and private-label options are available on request. Exhaust and cooling fans are supplied for poultry-house, greenhouse and workshop ventilation programs.

Cross-reference numbers

Catalog numbering for this Exhaust Fan: the primary reference is EF-985UB. When a supplier catalog lists superseded or regional formats, match on the numeric core of the code rather than the prefix, then confirm the physical fit.

Catalog cross-references for exhaust fan catalog and exhaust fan guide resolve to EF-985UB.

Frequently asked questions

Compliance disclaimer

Vidishi Auto is an independent supplier. This is an aftermarket compatible replacement, not a genuine OEM part. Brand names are trademarks of their respective owners and are used only to identify fitment.

Wholesale & support

Wholesale terms are quoted per market: volume breaks, mixed-SKU containers and private-label options are all handled by the trade desk. Airflow, mounting-frame and shutter documentation is available on request.

Enquiries about wholesale exhaust fan, exhaust fan supplier and exhaust fan price receive quotations within one business day.

Trade desk replies with quotation, MOQ and lead time in one business day.

Wholesale teams answer exhaust fan bulk order enquiries within one business day.

Airflow & mounting notes

Ventilation fans are matched to the building opening; the mounting scope below is confirmed before dispatch.

• Pre-dispatch checks: Steel construction is verified against the reference sample before packing.

Installation and service notes for exhaust fan replacement, exhaust fan with light and exhaust fan home depot are confirmed by our technical team before dispatch.

• Frame size and opening dimensions are confirmed against your building before dispatch.
• Shutter or louvre inclusion is confirmed with the quotation.

Workshop teams comparing exhaust fan cross reference, how to confirm exhaust fan fitment and 50hz receive the pre-dispatch checklist with the quotation.

• Motors are sealed and blades guarded for export packing.

Installation and service notes for 380v poultry fan, drop hammer fan and negative pressure fan are confirmed by our technical team before dispatch.

Shutter & frame options

Frame and shutter variants are matched to the building opening; the options below are confirmed before dispatch.

• Reference checks: the OE / reference number is matched against your old part before packing.

Application data for over the range microwave with exhaust fan and light, exhaust fan motor replacement and what is a exhaust fan is confirmed against your specification before dispatch.

• Shutter, louvre and cone options follow the published listing.
• Frame material and thickness are confirmed with the quotation.

Engineering checks behind the 380v, oem ventilation fan and fiberglass cone fan supply are completed before packing.

• Guarding and safety covers are quoted where the listing offers them.

Application data for poultry farm exhaust fan is confirmed against your specification before dispatch.