Marshalltown Shockwave 9 Inch Hole Spacing Blade 16 Ft. Power Screed Board

Description

Freezing morning winds and fast-setting accelerants turn wide warehouse pours into frantic races against slab hydration. The Marshalltown Shockwave 16 Foot Screed board consolidates wide commercial bays before concrete stiffens. Extruded magnesium transfers vibration across sixteen feet. Low-slump mixes require two finishers on pull ropes working in tandem to maintain strike-off pace.

High-strength extruded magnesium alloy forms the wide profile, delivering structural rigidity without the massive dead weight of aluminum straightedges. The blade incorporates standard nine-inch bolt hole spacing to fit popular commercial powerheads. Net blade weight registers 23 lbs, spanning 192 inches with a 4.75 by 4.25 inch cross section engineered to resist mid-span sagging under heavy paste head.

Key Features of Marshalltown 32410

Commercial concrete paving contractors and industrial flatwork teams mount powerheads to this sixteen-foot blade for warehouse slabs, airport aprons, and parking decks. Review commercial pricing to buy Marshalltown 32410 screed bars for wide-span high-flatness concrete placement.

• Standard nine-inch bolt pattern mounts to Marshalltown, Magic Screed, and MBW drive heads.
• Extruded magnesium alloy provides superior strength-to-weight ratios across sixteen-foot spans.
• Contoured front edge rolls excess concrete forward to eliminate manual raking labor.
• Flat rear float surface seals the slab face and brings rich cement paste to top.
• Lightweight twenty-three-pound magnesium extrusion eases transport and setup across forms.
• Chemical-resistant metal profile resists pitting from harsh admixtures and calcium chloride.
• Rigid internal ribbing prevents blade twist and curl under heavy low-slump paste head.
• Heavy-duty end plugs seal hollow interior chambers against concrete slurry intrusion.

Extrusion Sag Vibration Amplitude Metrics

Center-span deflection measures under 0.065 inches across the sixteen-foot unsupported length when suspended between end forms. When coupled to a powerhead operating at 7,000 VPM, vibration amplitude measures 0.038 inches at the center mount and 0.030 inches at the blade tips. The magnesium extrusion transfers vibratory energy four inches deep into low-slump concrete mixes. Bottom edge straightness holds within 0.030 inches total indicator reading along the 192-inch length. Torsional twist remains under 0.45 degrees under full aggregate head.

Wide Bay Strike Operator Service Realities

At sixteen feet wide, this screed requires two finishers operating pull ropes in steady tandem along perimeter form rails. The lightweight magnesium construction lets two workers lift and reposition the blade after each pass. Do not buy this sixteen-foot blade for small residential patios or narrow sidewalk pours. Commercial flatwork contractors striking off wide industrial warehouse bays gain massive labor savings from this blade.

• Wash concrete paste from the extrusion profile with clean water after each pour.
• Inspect the bottom float edge for stone gouges and file burrs smooth.
• Check mounting bracket bolt torque on powerheads before starting motors.

Factory Package US Warranty Details

Marshalltown backs the Shockwave sixteen-foot screed bar with a 1-Year commercial warranty covering material and extrusion defects. The factory shipping bundle contains the sixteen-foot extruded magnesium screed bar fitted with end plugs. Vibratory power units, clamp mounts, and pull ropes ship under separate order.