The MBW ScreeDemon is a vibratory wet screed for striking off and consolidating fresh concrete, a power unit that runs on either a Honda GX35 gas engine or an M18 RedLithium battery pack. The battery version is available with or without the battery and charger included, for crews that already run M18 tools on site. It drives a magnesium or aluminum screed bar, from 4 to 18 ft, that does the actual strike-off against the concrete.

Both power options drive the exciter through simple rubber isolators instead of the complex drive linkages that make conventional wet screeds high-maintenance, and a patented mount retention system lets MBW use low-durometer isolators without losing operator control, reducing hand-arm vibration 50 to 90 percent below competing screeds. Both run a variable throttle for instant response to changing concrete; the gas version pairs that with a 4-stroke Honda GX35 engine, while the battery version swaps the engine for an M18 RedLithium pack, eliminating motor maintenance and component failures and adding LED lights for low-light pours. The screed bar solves a separate problem: conventional screed-and-bar combinations often vibrate unevenly along the bar's length, leaving inconsistent consolidation and uneven cream levels, where the ScreeDemon's magnesium bar uses a back-to-back triangular design that is exceptionally rigid, so vibration from the exciter transmits consistently across the full length. Rather than bolting to the power unit, where hardware threads wear from concrete exposure and crews stop disassembling for cleaning or transport, the bar simply clamps on and can sit offset from the power unit's centerline for working under protrusions. This is built for concrete flatwork crews who need the whole system, engine or battery, exciter, and bar, to keep running through a full day of pours instead of back in the shop.

Common Applications

• Striking off and consolidating fresh concrete flatwork
• Slab and driveway finishing ahead of floating and troweling
• Low-light or indoor pours (battery version, LED lights)
• Screeding under protrusions and along walls or columns (offset bar mount)

Selection Notes

• Choose gas for sites without reliable charging or for crews already running Honda small engines; choose the M18 RedLithium battery version to cut motor maintenance entirely and add LED lights for low-light pours.
• On the battery version, choose Without Battery if the crew already runs M18 RedLithium tools and batteries on site; choose With Battery for a complete, ready-to-run unit.
• Choose a magnesium bar for the widest length range (4 to 18 ft) and the lightest weight per foot, or aluminum for 6 to 12 ft. The 18 ft magnesium bar requires two ScreeDemon power units; confirm this configuration and lead time with the supplier before ordering.