1. Important Safety Instructions
READ ALL INSTRUCTIONS BEFORE USING THIS APPLIANCE. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always ensure the mixer is plugged into a properly grounded 120V electrical outlet.
- Do not operate the mixer with a damaged cord or plug. If the cord or plug is damaged, contact qualified service personnel.
- Keep hands, hair, clothing, and utensils away from moving parts during operation to prevent injury.
- Never operate the mixer without the protective guard properly installed.
- Always turn off the mixer and unplug it from the power outlet before cleaning, assembling, disassembling, or changing attachments.
- Do not immerse the motor housing in water or other liquids.
- This appliance is intended for commercial use only.
- Ensure the mixer is placed on a stable, level, and dry surface during operation.
- Do not use attachments not recommended or sold by the manufacturer.
2. Product Overview
The Avantco MX20H Planetary Stand Mixer is a robust commercial appliance designed for high-volume food preparation. It features a powerful 1.5 HP motor and a 20-quart capacity stainless steel bowl, making it suitable for various mixing tasks in professional kitchens. The planetary mixing action ensures thorough ingredient incorporation by reaching all areas of the bowl. This model operates on 120V and includes a protective guard for enhanced safety during use, along with standard mixing accessories.

Image 2.1: The Avantco MX20H Planetary Stand Mixer, showcasing its main components including the motor head, mixing bowl, and protective guard.
Key Features:
- Powerful 1.5 HP Motor: Provides consistent performance for demanding mixing tasks.
- 20-Quart Capacity: Ideal for large batches in commercial settings.
- Planetary Mixing Action: Ensures uniform mixing of ingredients.
- Protective Guard: Enhances operator safety during use.
- Three Speed Settings: Offers versatility for different recipes and ingredients.
- 30-Minute Timer: Allows for precise control over mixing duration.
- #12 Hub: For optional attachments (sold separately).
3. Setup and Assembly
3.1 Unpacking
- Carefully remove the mixer and all accessories from the packaging.
- Inspect the mixer for any signs of shipping damage. If damage is found, contact your supplier immediately.
- Retain packaging materials for future transport or storage.
3.2 Placement
- Place the mixer on a sturdy, level, and dry countertop or stand capable of supporting its weight (approximately 190 lbs).
- Ensure adequate clearance around the mixer for ventilation and safe operation.
3.3 Initial Cleaning
Before first use, thoroughly wash the mixing bowl, wire whip, dough hook, and flat beater with warm, soapy water. Rinse well and dry completely. Wipe down the exterior of the mixer with a damp cloth.
3.4 Attaching the Bowl and Accessories

Image 3.1: Standard mixing attachments including the wire whip, dough hook, and flat beater.
- Ensure the mixer is unplugged and the speed control is set to 'OFF'.
- Lower the bowl lift handle to its lowest position.
- Place the mixing bowl onto the bowl support pins and rotate it clockwise until it locks securely into place.
- Select the appropriate attachment (wire whip for light mixtures, flat beater for general mixing, dough hook for heavy doughs).
- Slide the attachment shaft into the planetary shaft and rotate until the pin on the planetary shaft engages with the notch on the attachment.
- Raise the bowl lift handle to its highest position until it locks.
4. Operating Instructions
4.1 Adding Ingredients
With the mixer off and the bowl and attachment securely in place, add your ingredients to the mixing bowl. Ensure ingredients do not exceed the maximum capacity of the 20-quart bowl.

Image 4.1: A hand pouring ingredients into the mixer bowl, demonstrating the process of adding contents for mixing.
4.2 Using the Protective Guard
The mixer is equipped with a wire bowl guard for safety. Ensure the guard is properly closed before starting the mixer. The mixer will not operate if the guard is open or improperly positioned.
4.3 Powering On and Speed Control
- Plug the mixer into a 120V grounded outlet.
- Ensure the protective guard is closed and the bowl is in the raised position.
- Press the 'ON' button to start the mixer.
- Use the speed control lever or buttons (if applicable) to select the desired mixing speed (Low, Medium, High). Always start at a lower speed and gradually increase as needed.
- To stop the mixer, press the 'OFF' button.
4.4 Using the Timer
The mixer features a 30-minute timer. To use, rotate the timer dial to the desired mixing duration. The mixer will automatically stop once the set time has elapsed. The timer can be overridden by manually pressing the 'OFF' button.
5. Maintenance and Cleaning
Regular cleaning and maintenance will ensure the longevity and optimal performance of your Avantco MX20H mixer.
5.1 Daily Cleaning
- ALWAYS UNPLUG THE MIXER BEFORE CLEANING.
- Remove the mixing bowl and attachments. Wash them thoroughly with warm, soapy water, rinse, and dry completely.
- Wipe down the exterior surfaces of the mixer, including the motor housing and stand, with a damp cloth. Use a mild detergent if necessary.
- Do not use abrasive cleaners or scouring pads, as they can damage the finish.
- Ensure no water enters the motor housing or electrical components.
5.2 Periodic Maintenance
- Regularly inspect the power cord for any signs of damage.
- Check that all bolts and fasteners are secure.
- If the mixer exhibits unusual noises or performance issues, discontinue use and contact qualified service personnel.
6. Troubleshooting
Before contacting service, review the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Mixer does not start | Not plugged in; Power switch off; Protective guard open; Circuit breaker tripped; RESET button needs pressing. | Check power connection; Ensure power switch is ON; Close protective guard; Check building circuit breaker; Press the RESET button located on the side of the mixer. |
| Attachments not mixing properly | Attachment not securely installed; Incorrect attachment for task; Bowl not properly seated. | Ensure attachment is locked into planetary shaft; Use appropriate attachment for ingredients; Verify bowl is locked into place. |
| Unusual noise or vibration | Overloaded mixer; Loose components; Foreign object in bowl. | Reduce batch size; Check for loose attachments or bowl; Turn off and inspect bowl for foreign objects. If problem persists, contact service. |
If the problem persists after attempting these solutions, discontinue use and contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Model Name | MX20H |
| Brand | Glownary (Avantco) |
| Capacity | 20 Quarts |
| Motor | 1.5 HP |
| Voltage | 120 Volts |
| Wattage | 1100 W |
| Product Dimensions (D x W x H) | 21" x 18" x 31" |
| Item Weight | 190 pounds |
| Material | Steel (304 stainless steel bowl) |
| Controls Type | Push Button |
| Special Features | Durable 20 qt. 304 stainless steel bowl, wire bowl guard, easy-to-use controls, #12 hub, 30-minute timer, 3-speed gear-driven transmission. |
8. Warranty and Support
For warranty information and customer support, please refer to the documentation provided at the time of purchase or contact the manufacturer, Glownary, directly. Keep your purchase receipt as proof of purchase for any warranty claims.
For technical assistance or replacement parts, please contact the Glownary customer service department. Contact details can typically be found on the product packaging or the official Glownary website.