MMXR-3221 Multi-Use Mixer
Product Information
The MudMixer MMXR-3221 is a machine designed for mixing and
distributing bagged concrete and/or mortar products. It is suitable
for use by contractors, landscapers, fence builders, and
residential homeowners for professional and DIY projects. The
machine is made of high-strength 14-gauge steel body construction
and 1-inch steel pipe frame construction. It has a hopper capacity
of 120 lbs and comes with a grounded power cable with GFCI, and
water-tight electrical boxes and connections. The machine has a
motor protection rating of IP55 and runs on 120 volts with a
running amp of 1.6. The overall dimensions of the machine are 66.5
inches in length, 28.5 inches in width, and 35 inches in height. It
weighs 145 lbs and comes with flat-free tires.
Product Usage Instructions
Before operating the MudMixer MMXR-3221, read the owner’s manual
and assembly instructions carefully to understand how to operate
and maintain the machine properly to avoid injury and product
damage. For product safety and operation training materials,
accessory information, help finding a dealer, or to register your
product, contact MudMixer directly at www.MudMixer.com.
Whenever you need service, genuine MudMixer parts, or additional
information, contact an Authorized Service Dealer or MudMixer
Customer Service and have the model and serial numbers of your
machine ready. Use your mobile device to scan the QR code on the
rear electrical box to access warranty, parts, and other product
information.
The MudMixer MMXR-3221 comes with a concrete bag cutter, water
control dial, power switch, hopper auger guard (inside hopper),
chute auger guard (inside chute), T-valve secondary hose, and
chute. To use the machine, follow these steps:
- Open the QR Code reader on your smartphone.
- Hold your device over the QR Code so it’s clearly visible
within your smartphone’s screen. Your phone will automatically scan
the code and prompt you to open a browser window. (It may take a
few seconds on some devices. Some QR Code readers may require you
to press the button to take a picture of the code.) After your
smartphone reads the code, it will navigate to the online
video. - Press play on the video.
- Fill the hopper with bagged concrete or mortar products.
- Adjust the water control dial to add the desired amount of
water. - Turn on the power switch.
- Use the concrete bag cutter to cut open the bag and pour the
contents into the hopper. - The auger inside the hopper will mix the contents with water,
which will be pushed through the chute and out of the machine.
Always use the hopper auger guard and chute auger guard to
prevent injury. The machine comes with a hardware package list that
includes bolts, washers, nuts, axle washer pin, axle washer, base
plate small washers, base plate spring, base plate nut, base plate
M14 x 65 bolt, and base plate big washer.
Remember to turn off the power switch and unplug the machine
when not in use. Follow proper cleaning and maintenance procedures
to keep the machine in good working condition.
MIXING MUD HAS NEVER BEEN THIS EASY… OR THIS CLEAN!
OWNERS MANUAL & ASSEMBLY INSTRUCTIONS
MudMixer · Model MMXR-3221
This machine is designed primarily for mixing and distributing bagged concrete and/or mortar products, and is intended for use by contractors, landscapers, fence builders, and residential homeowners in completing professional and DIY projects.
Read this information carefully to learn how to operate and maintain your product properly and to avoid injury and product damage.
You are responsible for operating the product properly and safely. You may contact MudMixer directly at www.MudMixer.com for
product safety and operation training materials, accessory information, help finding a dealer, or to register your product.
Whenever you need service, genuine MudMixer parts, or additional information, contact an Authorized Service Dealer or MudMixer Customer Service and have the model and serial numbers of your machine ready.
IMPORTANT: With your mobile device, you can scan the QR code on the rear electrical box to access warranty, parts, and other product information.
TABLE OF CONTENTS
Safety & Specs…………………………………………………………………………………………………….. 1 Parts & Hardware List …………………………………………………………………………………………… 1 Assembly Instructions…………………………………………………………………………………………… 2 Assembly Video (via QR code) ………………………………………………………………………………… 3 Operating Instructions ………………………………………………………………………………………….. 5 Maintenance Schedule …………………………………………………………………………………………. 6 Maintenance Warranty………………………………………………………………………………………….. 7
This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.
Figure 2
Safety-alert symbol
Publication Date: 05/2023
Model MMXR-3221 (05/2023)
MudMixer MMXR-3221
Machine Overview
1
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View 1
View 2
1. Open the QR Code reader on your smartphone.
2. Hold your device over the QR Code so it’s clearly visible within your smartphone’s screen. Your phone will automatically scan the code and prompt you to open a browser window. (It may take a few seconds on some devices. Some QR Code readers may require you to press the button to take a picture of the code.) After your smartphone reads the code, it will navigate to the online video.
3. PRESS PLAY on the video.
Hopper
Hopper Auger Guard (inside Hopper) see View 3 below
Concrete Bag Cutter Water Control Dial Power Switch
View 3 T-Valve Secondary Hose
Chute
Grounded Power Cable
Flat Free Tire Chute Auger Guard Auger (inside chute)
2
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E A
B
MudMixer MMXR-3221
Manual Part Number: MMXR-P316
(05/2023) Model MMXR-3221
L
M
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D
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I
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DETAILS
Overall Length
66.5 in.
Overall Width
28.5 in.
Overall Height
35 in.
Chute Height
16 in.
Weight
145 lbs.
Hopper Capacity
120 lbs.
Body Construction
14 Gauge High-Strength Steel
Frame Construction
1 in. Steel Pipe
Tires
Marathon Flat-Free
ELECTRICAL
Electrical Requirements 120-volt
Cord Length
36 in.
Running Amps
1.6
MOTOR
Motor HP
½ HP
Motor Protection Rating IP55
SAFETY FEATURES
Hopper Auger Guard
Chute Auger Guard
Grounded Power Cable with GFCI
Water-tight electrical boxes and connections
Hardware magnified and labeled in inset above
PARTS LIST – MUDMIXER MODEL MMXR-3221 A MudMixer – Body B MudMixer – Frame C MudMixer – Frame Handle D Auger Guard – Chute E Auger Guard – Hopper F Base Plate G Circular Pivot Bushing H Wheel Axle I Flat-Free Wheels HARDWARE PACKAGE LIST J M10 x 50 Bolts, Washers & Nuts (6) K Axle Washer Pin (2) L Axle Washer (2) M Base Plate Small Washers (2) N Base Plate Spring (1) O Base Plate Nut (1) P Base Plate M14 x 65 Bolt (1) Q Base Plate Big Washer (1)
Model MMXR-3221 (05/2023)
MudMixer MMXR-3221
Assembly Instructions · Steps 1 – 3a
Tools Needed: 1.) Channel Locks 2.) 5/8″ Wrench 3.) 7/8″ Wrench
STEP 1
STEP 2
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Lay (A) MudMixer upside down on provided cardboard cover
STEP 3a
Lay (G) bushing on mixer base, webbing up
STEP 3b
STEP 4 & 5
Secure (F) base plate to mixer via (Q) large washer, (M) small washer (2), (N) spring, and (O) nut
Visit: mudmixer.com/videos to learn more about your MudMixer!
Secure (B) frame to base plate via (J) bolts, nuts, and washers (4) Attach (C) frame handle to frame via (J) bolts, nuts, and washers (2)
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STEP 6a
MudMixer MMXR-3221
Assembly Instructions · Steps 3b – 4
STEP 7
(05/2023) Model MMXR-3221
STEP 6b
Attach MudMixer (I) tires to frame via (H) axle, (K) pins, and (L) washers
PAGE 2 HARDWARE (BASE PLATE PARTS M-Q)
M10 x 50 Bolts,
M Small Washers (2)
J Washers &
N Spring (1)
Nuts (6)
O Nut (1)
K Axle Washer Pin (2) P M14 x 65 Bolt (1)
L Axle Washer (2)
Q Big Washer (1)
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Pivot the mixer 90 degrees and use the handle to flip the mixer into the upright position
STEP 8
Pivot mixer 90 degrees to secure pivot latch
Model MMXR-3221 (05/2023)
MudMixer MMXR-3221
Operating Instructions
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1. Ensure installation of both Safety Auger Guards (Hopper and Chute). 2. Connect garden hose (Min 40PSI recommended) to T-Valve. 3. Connect the Grounded Power Cable to power. 4. Set the Water Control Dial to desired starting point (35 – 50 recommended for concrete). 5. Flip the Power Switch to “Forward” for 5 seconds to test the water and Auger. 6. Pre-wet the Chute using the Secondary Hose. 7. Using the Concrete Bag Cutter, place the first bag of powder into the Hopper. 8. Flip the Power Switch to “Forward” to begin mixing concrete. 9. Adjust Water Control Dial to achieve desired slump. 10. Continue to add bags as necessary, keeping the Hopper 3/4 or more full. 11. Utilize the Secondary Hose to:
· Increase water delivery when necessary · Thoroughly clean the unit when finished 12. THOROUGHLY CLEAN THE HOPPER, CHUTE, and AUGER WITH PROVIDED SPRAY NOZZLE WITHIN 20 MINUTES OF COMPLETING MIXING PROCESS
DO NOT SPRAY WATER DIRECTLY ONTO OR INTO THE MOTOR
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MudMixer MMXR-3221
Maintenance Schedule
(05/2023) Model MMXR-3221
WARNING – DO NOT CLEAN THE MIXER WHILE IT IS
HOOKED TO ELECTRICITY
DO NOT SPRAY WATER DIRECTLY ONTO OR INTO
THE MOTOR
General Cleaning
· After using the MudMixer, it is absolutely necessary to clean the unit thoroughly. · We recommend using the MudMixer Secondary Hose and a rag to ensure the unit is free of
concrete residue of any kind after the end of each project.
Motor Cleaning
· Use a rag to wipe the motor clean if necessary. · DO NOT SPRAY WATER DIRECTLY ONTO OR INTO THE MOTOR.
Wheel Maintenance
· Use the grease ports on the wheels to grease the wheels when necessary.
Solenoid Maintenance
· If unused for more than 6 months, disassemble solenoid for cleaning to prevent internal rust. · COLD WEATHER WARNING: To prevent bursting components, ensure all water is removed from
plumbing system if temperature will drop below 32°F.
Model MMXR-3221 (05/2023)
MudMixer MMXR-3221
Warranty Information
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The MudMixer® Company promises to repair the MudMixer® product if it is defective in materials or workmanship for the period listed below.
One Year for any unit used for any purpose including personal, family, or household use, rental, or commercial.
This warranty extends to the original retail purchaser only and commences on the date of the original retail purchase.
Any part of this product manufactured or supplied by MudMixer® and found in the reasonable judgment of the MudMixer® Company to be defective in material or workmanship will be repaired or replaced without charge for parts and labor by the MudMixer® company or an authorized dealer.
The product, including any defective part, must be returned to the MudMixer® company or an authorized MudMixer® dealer within the warranty period. The expense of delivering the product to the dealer for warranty work and the expense of returning it back to the owner after repair or replacement will be paid by the owner. The MudMixer® company’s responsibility with respect to claims is limited to making the required repairs or replacements and no claim of breach of warranty should be cause for cancellation or rescission of the contract of any MudMixer® brand product. Proof of purchase will be required by the dealer to substantiate any warranty claim before warranty work must be performed by the MudMixer® company.
This warranty is limited to 365 days from the date of original retail purchase for any MudMixer® brand product that is used for rental or commercial purposes, or any other income producing purpose.
This warranty does not cover any MudMixer® brand product that has been subject to misuse, neglect, negligence, or accident, or that has been operated in any way contrary to the operating instructions as specified in the operator’s manual. This warranty does not apply to any damage to the product that is the result of improper maintenance or to any product that has been altered or modified. The warranty does not extend to repairs made necessary by normal wear or by the use of parts or accessories which are either incompatible with the MudMixer® product or adversely affect its operation, performance, or durability.
The MudMixer® company reserves the right to change or improve the design of any MudMixer® brand product without assuming any obligation to modify any product previously manufactured.
The warranty applies only if you perform the routine maintenance specified in the Operator’s Manual. MudMixer® makes no other express warranty.
ALL IMPLIED WARRANTIES ARE LIMITED IN DURATION TO THE STATED WARRANTY PERIOD. ACCORDINGLY, ANY SUCH IMPLIED WARRANTIES INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR OTHERWISE, ARE DISCLAIMED IN THEIR ENTIRETY AFTER THE EXPIRATION OF THE APPROPRIATE ONE YEAR OR NINETY DAY WARRANTY PERIOD. MUDMIXER’S OBLIGATION UNDER THIS WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO THE REPAIR OR REPLACEMENT OF DEFECTIVE PARTS AND MUDMIXER DOES NOT ASSUME OR AUTHORIZE ANYONE TO ASSUME FOR THEM ANY OTHER OBLIGATION. SOME STATES DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATION MAY NOT APPLY TO YOU. MUDMIXER ASSUMES NO RESPONSIBILITY FOR INCIDENTAL, CONSEQUENTIAL, OR OTHER DAMAGES INCLUDING BUT NOT LIMITED TO, EXPENSE OF RETURNING THE PRODUCT TO THE MUDMIXER COMPANY OR AN AUTHORIZED MUDMIXER SERVICE CENTER OR EXPENSE OF DELIVERING IT BACK TO THE OWNER, MECHANICS TRAVEL TIME, TELEPHONE CHARGES, RENTAL OF A PRODUCT DURING THE TIME WARRANTY SERVICE HAS BEEN PERFORMED, TRAVEL, LOSS OR DAMAGE TO PERSONAL PROPERTY LOSS OF REVENUE, LOSS OF USE OF THE PRODUCT, LOSS OF TIME, OR INCONVENIENCE. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
For additional questions regarding warranty terms and conditions, you may contact the MudMixer® Company at: MudMixer®
www.mudmixer.com | (806) 515-4683
REGISTER YOUR MUDMIXER
Within 30 days of your purchase, register your product to activate your warranty! Go to mudmixer.com/warranty or scan the QR code below to get started.
mudmixer.com | 1-806-515-4MUD
MudMixer
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