| Brand Name: | ElectroCraft |
| Model Number: | E39AFG-3C |
| MOQ: | 1 Piece |
| Price: | Negotiable |
| Delivery Time: | 3–7 Working Days |
| Payment Terms: | T/T |
ElectroCraft E39AFG-3C 5209822 BTU Reflow Oven Hot Air Motor
The ElectroCraft E39AFG-3C 5209822 BTU Reflow Oven Hot Air Motor is an industrial induction motor used to drive the hot-air circulation blower inside compatible BTU reflow soldering ovens. It is designed for 208/240V AC, three-phase, 50/60Hz operation, with approximately 1/8 HP output and high rotational speed suitable for continuous circulation applications.
During SMT reflow soldering, controlled airflow is essential for transferring heat evenly through each processing zone. The E39AFG-3C motor provides the mechanical rotation required by the blower assembly, helping maintain continuous convection inside the oven. It is suitable for maintenance replacement, preventive spare-part inventory, and repair applications where model E39AFG-3C or part number 5209822 matches the existing installation.
For accurate replacement, buyers should confirm the motor nameplate, voltage, shaft dimensions, mounting position, wiring configuration and original oven model before ordering.
Reflow ovens frequently operate for long production cycles under elevated-temperature conditions. The circulation motor can therefore experience gradual mechanical and electrical wear.
Common causes include:
| Cause | Possible Effect |
|---|---|
| Bearing Wear | Increasing noise, vibration or unstable rotation |
| Long Operating Hours | Gradual mechanical and insulation aging |
| High Temperature | Increased stress on bearings and windings |
| Blower Contamination | Higher mechanical load on the motor |
| Shaft Misalignment | Vibration and premature bearing wear |
| Electrical Imbalance | Motor heating or unstable operation |
| Loose Mounting | Excessive vibration during operation |
| Damaged Blower Wheel | Reduced airflow and additional motor load |
Typical maintenance symptoms may include abnormal noise, excessive vibration, reduced airflow, unstable motor speed, overheating, slow startup or complete failure to rotate.
These symptoms should be checked carefully because airflow problems may also originate from the blower wheel, heater, filter, air duct, electrical supply or control system.
The ElectroCraft E39AFG-3C 5209822 provides a practical replacement solution when the original reflow oven motor has reached the end of its service life or no longer provides reliable circulation.
Correct motor replacement helps restore the blower system's mechanical drive and supports normal oven airflow.
The replacement should always match the original electrical and mechanical configuration.
| Specification | Details |
|---|---|
| Brand | ElectroCraft |
| Model | E39AFG-3C |
| Part Number | 5209822 |
| Product Type | Hot Air Circulation Motor |
| Motor Type | AC Induction Motor |
| Application | BTU Reflow Oven |
| Rated Voltage | 208/240V AC |
| Frequency | 50/60Hz |
| Phase | Three Phase |
| Rated Output | 1/8 HP |
| Rated Current | Approx. 0.6/0.5A |
| Rated Speed | Approx. 2800/3400 RPM |
| Main Function | Reflow Oven Blower Drive |
| Industry | SMT PCB Assembly |
| Replacement Method | Match Original Motor Specification |
| Check Item | Recommended Verification |
|---|---|
| Motor Model | E39AFG-3C |
| Part Number | 5209822 |
| Voltage | 208/240V |
| Frequency | 50/60Hz |
| Phase | Three Phase |
| Output | 1/8 HP |
| Shaft | Compare with original |
| Mounting | Compare hole positions |
| Wiring | Confirm original connection |
| Oven Model | Provide before ordering |
A motor with similar external dimensions should not automatically be considered interchangeable. Electrical rating, shaft structure and mounting configuration must also match.
The E39AFG-3C hot air motor is mainly intended for the circulation system of compatible BTU reflow soldering ovens.
Typical applications include:
Used in reflow ovens installed after pick-and-place equipment for solder paste reflow.
Suitable for production environments manufacturing:
It can be kept as a maintenance spare for factories operating compatible BTU reflow ovens.
Suitable for replacement when the existing motor has bearing damage, electrical failure, unstable speed or mechanical deterioration.
The E39AFG-3C operates using a three-phase AC power supply. When electrical power is applied, the motor generates rotational force.
The rotating motor shaft is mechanically connected to the associated circulation blower or fan assembly.
The blower pushes process air through the internal circulation path of the reflow oven.
Heating elements raise the air temperature according to the settings of each reflow zone.
The circulating air transfers thermal energy to the PCB, components and solder paste as the board passes through the oven.
Stable blower rotation contributes to repeatable convection and predictable thermal transfer.
The motor itself does not regulate temperature. It works together with the oven heaters, sensors, controllers, blowers and air ducts.
| Component | Main Function |
|---|---|
| Hot Air Motor | Provides rotational drive |
| Blower Wheel | Produces airflow |
| Heater | Generates thermal energy |
| Air Duct | Directs circulation |
| Temperature Sensor | Detects oven temperature |
| Controller | Regulates thermal conditions |
| Conveyor | Transfers PCB assemblies |
| Exhaust System | Removes process gases |
This is why motor diagnosis should be combined with inspection of the complete circulation system.
Check whether the original motor nameplate shows:
E39AFG-3C
Model identification should be the first comparison point.
Verify whether the machine documentation or existing spare part references:
5209822
The required reference is:
208/240V AC
A different voltage rating should not be installed without engineering confirmation.
Confirm:
50/60Hz
Frequency directly affects induction motor operating speed.
The motor is intended for a three-phase electrical configuration.
Reference speed is approximately:
2800/3400 RPM
A major speed difference can affect blower airflow and oven performance.
Check:
Verify:
For more efficient confirmation, provide:
| Information | Recommended |
|---|---|
| Motor Model | Required |
| Part Number | Required |
| Oven Model | Recommended |
| Machine Serial Number | Recommended |
| Nameplate Photo | Highly Recommended |
| Shaft Photo | Recommended |
| Mounting Photo | Recommended |
| Quantity | Required |
Providing these details can reduce the risk of ordering an incorrect motor.
Grinding or metallic noise may indicate bearing deterioration.
Check the motor, shaft, mounting and blower balance.
A motor with unstable or reduced speed may affect circulation.
Possible causes include mechanical resistance, incorrect voltage, bearing wear or electrical problems.
Inspect the electrical supply, phase condition, wiring, motor winding and mechanical load before replacement.
Regular inspection can help identify motor deterioration before a production interruption occurs.
| Maintenance Item | Suggested Check |
|---|---|
| Motor Noise | Check for abnormal sound |
| Bearing Condition | Check smoothness and movement |
| Vibration | Inspect for excessive vibration |
| Motor Temperature | Check abnormal overheating |
| Shaft | Check wear and alignment |
| Blower | Remove contamination if required |
| Wiring | Inspect connections |
| Mounting Screws | Confirm tightness |
| Airflow | Compare with normal operation |
Maintenance and electrical work should be performed by qualified technicians following applicable equipment safety procedures.
Selecting a reflow oven motor only according to appearance can lead to incorrect purchasing.
Two similar motors may differ in:
For this reason, the combination of ElectroCraft E39AFG-3C and 5209822 should be checked together with the physical motor configuration.
It is used to drive the hot-air circulation blower in compatible BTU reflow ovens, helping maintain continuous airflow through the thermal processing zones during SMT PCB soldering production.
Verify 208/240V AC, 50/60Hz, three-phase operation, approximately 1/8 HP output and the original motor nameplate specifications before purchasing the replacement.
No. BTU ovens may use different motor configurations depending on machine model and revision. Always confirm model, part number, shaft, mounting dimensions, electrical specification and machine information.
Please provide E39AFG-3C, part number 5209822, required quantity, oven model, machine serial number, motor nameplate photo, shaft photo and installation photos whenever possible.
Replacement may be necessary when inspection confirms bearing noise, excessive vibration, overheating, unstable rotation, low blower speed, electrical failure or inability to start during normal oven operation.
For price, stock availability, delivery schedule or compatibility confirmation, please send the product model, part number, required quantity and original motor photos.
For BTU reflow oven maintenance projects, providing the oven model and machine serial number can help improve replacement-part identification accuracy. Bulk quantities and maintenance spare requirements can also be quoted according to your purchasing plan.