Description
High floor tile demolition and brick wall tear-out require hard linear blows without heavy chassis drag. The Bosch Demolition Hammer smashes through masonry walls and concrete mortar beds with high-velocity kinetic strokes. Driven by an 11-amp motor, this factory-reconditioned chipping hammer delivers 5.6 ft-lbs of impact energy. Pulling the trigger with the chisel unsupported allows destructive internal piston impacts against the front barrel stops.
A cast magnesium gear housing shields an electro-pneumatic drive piston engineered to deliver high kinetic impact energy. The SDS-Max 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 Vario-Lock mechanism rotates chisels through twelve separate angular positions to match wall seams. Hardened grease breakdown inside the piston chamber causes loss of impact force and piston seizure during cold weather.
Concrete Chipping Mechanical Hardware Array
Masonry restoration crews require continuous linear impact without tool rotation to bust mortar beds and wall plaster. The internal mechanical layout pairs high-velocity piston drive with simple bit retention.
- 11-amp electric motor delivers reliable kinetic impact power under continuous concrete demolition loads
- SDS-Max tool holder accepts heavy demolition bull points, cold chisels, and bushing tools firmly
- Twelve-position bit angle settings lock chisels at the optimum attack angle for floor and wall work
- Constant speed electronics maintain impact velocity under heavy downward mechanical chisel loads
- Service reminder light indicates carbon brush wear approximately eight hours before tool shut-off
- Impact-resistant polymer motor housing protects internal drive components from flying concrete chunks
- Ergonomic rubberized grip handle dampens continuous vibration transfer into the operator hand axis
Kinetic Piston Telemetry Load Analysis
Electrical draw stabilizes at 11 amps under continuous concrete breaking at maximum load. Impact frequency cycles at 2,650 blows per minute driven by the air-cushioned piston assembly. Mechanical kinetic energy outputs 5.6 ft-lbs per blow into structural concrete slabs. Continuous internal air compression raises gear casing surface temperatures to 140°F during extended demolition runs. The SDS-Max drive spline withstands up to 65 ft-lbs of off-axis pry torque. Sound pressure measures 95 dBA at operator ear level.
Masonry Demolition Field Care Directives
Heavy chipping hammers require regular bit shank lubrication to preserve internal retainer splines. Plumbers drilling round holes in foundation walls must not purchase this tool because it lacks a rotary drilling mode. Prying heavy slabs with the chisel shank while running the hammer will snap the tool bit inside the SDS-Max chuck.
- Coat the shank of every SDS-Max chisel with high-temperature hammer grease before chuck insertion
- Blow concrete dust out of the rear motor ventilation slots using dry compressed air weekly
- Inspect the SDS-Max chuck retainer sleeve for axial play to prevent loose bit retention failures
Commercial Warranty Terms Kit Inventory
Bosch backs this factory-reconditioned demolition hammer with a 1-Year limited warranty covering manufacturing and material defects. The complete packaged kit contains the 11335K-RT demolition hammer, an auxiliary D-handle, an SDS-Max chisel, a durable carrying case, and the instruction manual.