The WM70S Whiteman Steel-Drum Plaster/Mortar Mixer is Multiquip’s gold standard for high-capacity, professional mixing of plaster, mortar, grout, and similar materials. Available in several engine configurations, the WM70S is celebrated across the construction, masonry, and rental industries for its robust build, balanced mixing action, easy transportation, and unmatched reliability—even in the toughest site conditions.

Product Overview: Built for Professionals

The WM70S mixer series boasts a 7 cubic foot (198 liters) capacity 10-gauge steel drum, capable of blending 1.5 to 2.5+ bags of dry mix per batch. Its heavy-duty frame, double V-belt drive, precision-cast iron paddles, and oversized bull gear are engineered to endure constant jobsite punishment—making it an ideal investment for crews seeking quality results with every use. A manual dump handle, powder-coated finish, and OSHA-compliant safety grate with integrated bag breaker further reflect Multiquip’s attention to safety and operational workflow.

All Engine Variants: Power for Every Application

The WM70S series is offered with several top-tier engine options tailored to contractor, rental, and specialty needs. Configuration options include:

• WM70SE: 1.5 HP Baldor Single-Phase Electric Motor (115/230V)—whisper-quiet and emission-free, ideal for enclosed sites or working near new construction.

• WM70SH5: 4.8 HP Honda GX160 Gas—industry-standard for reliability, fast starts, and field longevity.

• WM70SH8: 7.9 HP Honda GX240 Gas—a high-torque upgrade for stiffer mixes and heavy, high-volume workloads.

• WM70SLF (and similar): 9.0 HP MPower 177F-BH Gas—offers heavy-duty alternative power and outstanding value.

Regardless of engine selection, each model includes:

• Industrial grade 14-gauge steel engine housing

• Double-sealed, greasable bearings, and a precision-cast iron paddle system with rubber wipers for efficient, clump-free mixes

• Schedule 80 steel removable hitch/tongue for jobsite transport and towing

• Forklift pockets and highway-rated tires for site or road mobility

WM70S Technical Specifications (All Engine Variants)

Rugged Engineering & Premium Features

• Aggressive Paddle Design: Cast iron paddle arms and rubber blades guarantee uniform, thorough mixing—minimizing dead spots for reliable mortar/plaster every batch.

• Heavy-Duty Drivetrain: Double V-belt drive, cast pulleys, and a heat-treated pinion reduce downtime, noise, and vibration while maximizing part life.

• Seep Hole and Seal System: Unique lubrication/seep hole design alerts users to seal wear before bearing contamination—maximizing life and minimizing unplanned repairs.

• Designed for Mobility: Schedule 80 hitch, baked powder-coat frame, and forklift pockets provide fast, safe, and flexible jobsite handling and highway towing.

Performance Benefits

• Batch Consistency: Every variant is tuned to deliver a smooth, fully blended mortar, grout, or stucco—boosting productivity and structural reliability in masonry and plaster jobs.

• Operator Safety: OSHA-compliant grates, drum locking positions, and intuitive dump handles make the WM70S among the safest mixers on the market.

• Long-Term Value: Rugged parts, redundant seals, and known engine brands keep units running season after season, especially suited to busy rental fleets.

• Easy Maintenance: Belts, seals, and paddles are simple to access/replace, supporting high utilization and low downtime.

Applications

• Commercial & Residential Masonry: Perfect for concrete block, brick, stone, and decorative masonry work.

• Stucco, Lath & Plaster: Delivers lump-free, spread-ready mixes for walls, ceilings, and EIFS base coats.

• Tilebed & Paver Installations: Ideal for mudset, mortar beds, screed, and grout, both indoors and out.

• Pool & Hardscape: Powerful enough for plaster, shell coatings, shotcrete prep, and paving jobs.

• Rental & Fleet Operations: Provides reliability, ease of service, and high ROI in the rental market.

Reviews & User Experience

• “Mixers That Outlast the Project”: Contractors cite unmatched endurance, “handles concrete, mud, and masonry mixes all day, every day.”

• “Reliable Power For Every Need”: Electric variants favored for indoor jobs or where emission/proximity restrictions exist; Honda and MPower gas models preferred for mobility, jobsite changes, and power in remote areas.

• “Minimal Downtime”: Well-liked for quick maintenance, greaseable bearings, and rugged bull gears that stand up to years of abuse.

Maintenance & Best Practices

• Rinse drum thoroughly every shift, especially with colored or sticky mixes.

• Check V belt and paddle fixings weekly for optimal drive/transmission.

• Regularly inspect and lube bearings/seals; watch seep hole for early wear signals.

• Always keep safety grates in place and follow engine maintenance schedules.

Frequently Asked Questions

Q: Can I use the WM70S for both mortar and plaster?
A: Yes, the aggressive paddle and optimized drum design cater to all standard masonry and plaster mixes.

Q: How long does it last in rental fleets?
A: Many rental centers report 5+ years of constant use—sometimes decades—when basic care and lubrication schedules are followed.

Q: Is it easy to tow and move onsite?
A: Yes, thanks to a removable tongue, wide tires, and forklift pockets for fast unloading and staging.

Q: Does the drum lock securely?
A: The positive lock ensures the drum stays put in both mixing and towing modes, improving crew safety.

Conclusion

The WM70S Whiteman Steel-Drum Plaster/Mortar Mixer—in all its robust engine variants—is the ultimate, professional-grade solution for big-batch, tough-duty mixing in the construction and masonry world. Rugged steel, flexible engine choices, and the industry’s best mixing action make it a wise investment for crews demanding top performance and long-term value—job after job, season after season.