Description
Nine cubic feet of wet mortar capacity and nine-gauge steel drums define the jobsite output on the MBW MM90 Commercial Mortar Mixer. Masonry contractors run this gas-powered rig to supply three bricklayers on high-rise scaffolds. The cast-iron trunnion bearings absorb extreme paddle torque. Hand dump wheels require firm muscle during thick mud discharges.
Heavy nine-gauge steel plate forms the main mixing drum to resist sand erosion. Power comes from an industrial Honda GX240 engine producing 7.9 net horsepower with cast-iron cylinder sleeve construction. The drive system runs a B-section belt reduction jackshaft to heavy roller chain sprockets. Solid cast-iron trunnions house grease-purged shaft seals to protect paddle bearings. Net unit weight totals 785 lbs with dimensions measuring 50 inches wide by 82 inches long by 55 inches high.
Key Features of MBW MM90
Professional masonry contractors buy MBW MM90 mixers when commercial mortar mixer pricing requires lifetime drum durability. This machine churns brick mortar, stone grout, structural block mud, and exterior stucco batches.
- Nine-cubic-foot drum capacity mixes three full eighty-pound bags of mortar per batch cycle.
- Honda GX240 engine provides reliable high-torque rotation through stiff low-slump mud.
- Cast-iron paddle shaft trunnions eliminate drum deflection under maximum material weight.
- Grease-purged bearing seals force abrasive cement paste out of the shaft journals.
- End-to-end center-discharge paddle design mixes dry cement pockets into uniform paste.
- Heavy-duty steel bag splitter on the safety grill opens paper sacks without knives.
- Leaf-spring axle suspension cushions drive components during highway transit behind work trucks.
Shaft Torque Bench Stress Metrics
Dynamometer bench tests record paddle shaft speeds at 38 RPM under a full 900-pound wet batch load. The Honda engine experiences a 120 RPM drop when mixing stiff brick mortar at minimum water slump. Paddle shaft deflection remains below 0.012 inches under full rotational resistance. Main drive chain elongation measures less than 0.050 inches after fifty hours of severe slurry testing. Bearing housing temperatures remain cool at 140 degrees Fahrenheit during non-stop hot weather mixing cycles.
Jobsite Usability Paddle Maintenance Procedures
The balanced manual tilt wheel lets mixer tenders dump mortar with precision right into narrow wheelbarrow tubs. The heavy tow frame tracks straight on highway roads behind utility trucks. Do not buy this machine for structural concrete mixes containing coarse aggregate gravel or river rock.
- Pump water-resistant lithium grease into the trunnion seals at the end of each shift.
- Wash drum walls and wiper blades with hose water before mortar sets up.
- Check drive belt and roller chain tension every fifty field hours.
Factory Warranty Tow Package Inclusions
MBW covers this mortar mixer with a 1-Year limited manufacturer warranty, while Honda backs the GX240 engine with a 3-Year commercial warranty. The towable factory crate includes the assembled mixer, highway tow pole, safety chains, DOT lighting harness, engine spark plug tool, and operator maintenance manuals.