Description
Manual floor scraping tools curl vinyl tiles without shearing dried adhesive mastic underneath. The Makita SDS-PLUS Power Scraper strips stubborn floor coverings and thinset mortar using rapid linear scraper impacts. Driven by a 5-amp electric motor, this specialized surface tool delivers 2.3 ft-lbs of impact energy. Forcing the wide scraper blade into concrete knots without angling causes blade bowing and retaining bolt shear.
A precision-machined steel gear case houses an electro-pneumatic drive piston engineered to deliver high kinetic impact energy. The SDS-Plus tool chuck features hardened alloy steel locking pawls ground to resist severe axial hammering wear. Double-sealed armature bearings block conductive masonry dust from scoring internal electrical windings. An integrated angle adjustment mechanism rotates scraper blades through twelve separate positions to match floor surfaces. Hardened grease breakdown inside the piston chamber causes loss of impact force and piston seizure during cold weather.
Floor Scraping Mechanical Hardware Array
Tile restoration crews require continuous linear impact without tool rotation to peel mortar beds and floor coatings. The internal mechanical layout pairs high-velocity piston drive with a wide scraper blade.
- 5-amp electric motor delivers reliable kinetic impact power under continuous floor tile scraping loads
- SDS-Plus tool holder accepts specialized floor scrapers, tile chisels, and wide mortar blades firmly
- Twelve-position bit angle settings lock scrapers at the optimum attack angle for floor and wall work
- Constant speed electronics maintain impact velocity under heavy forward mechanical scraper loads
- Factory sealed grease lubrication system eliminates frequent oil additions in dusty field environments
- Slender inline body profile allows comfortable floor-level operation with reduced back bend
- Variable speed trigger regulates impact frequency from delicate tile taps up to full strike velocity
Kinetic Piston Telemetry Load Analysis
Current draw pulls a steady 5 amps across 120-volt AC power sources under continuous mechanical scraper loading. The electro-pneumatic piston cycles between 0 and 3,200 blows per minute. Striking force measures 2.3 ft-lbs of linear kinetic energy per stroke. Compressive air cycling inside the striking chamber elevates front barrel temperatures to 128°F during continuous scraping passes. The SDS-Plus drive spline withstands up to 25 ft-lbs of torsional side pry force. Sound pressure registers 88 dBA at operator ear level.
Surface Preparation Field Care Directives
Electric power scrapers demand sharp blade edges to avoid motor overload on hardened thinset mortar. Heavy highway demolition crews should not buy this 7-lb scraper because light SDS-Plus blades lack the mass to fracture thick highway asphalt. Prying heavy slabs with the scraper blade while running the hammer will snap the tool steel inside the chuck.
- Apply high-temperature grease to scraper bit shanks before sliding them into the SDS-Plus chuck collar
- Blow fine mortar dust from motor air vents using dry compressed air to maintain field coil cooling
- Check scraper blade retaining bolts for tightness before starting adhesive removal passes
Commercial Warranty Terms Kit Inventory
Makita supports this power scraper with a 1-Year commercial warranty against defects in materials and factory workmanship. The unboxing package contains the HK1820 power scraper, one 2-inch scaling chisel, a tube of grease, a heavy-duty carrying case, and the instruction manual.
