Demolition hammer selection for concrete work in 2026 hinges on three binding constraints: chuck type (SDS-plus, SDS-max, or 28-30 mm hex), single-stroke impact energy (J), and the rated input power that the tool can actually deliver under load. Bosch's current professional line lists 18 rotary and demolition models, with rated input power steps at 720, 800, 880, 900, 1,100, 1,150, 1,300, 1,500, 1,700, 1,750, and 2,000 W [S2].
Fixtec's demolition-hammer catalogue exposes the same pattern in OEM form: model codes such as FCK031-115U, FDH150145, and FRH85026 are paired with chuck designations (115, 145 mm shank groups) and class ratings in the 1,300-1,700 W band [S3]. Air-driven breakers sit in a separate class for utility and petrochemical work, with the Alibaba air-hammer concrete-breaker catalogue covering pneumatic 30-90 lb class units typically rated 800-1,500 BPM [S1].
Chuck System Determines Bit Inventory and Maximum Concrete Size
SDS-plus chucks accept 10 mm shanks and are the standard for rotary hammers up to about 1,300 W, where the concrete drilling envelope tops out near 16-32 mm and light chipping stays productive [S2]. The SDS-max chuck (18 mm shank) takes over from 1,500 W upward and is the workhorse interface for the 1,700-2,000 W demolition hammers Bosch catalogs for slab and wall breaking [S2].
Hex 28-30 mm chucks are reserved for true breaker-class tools in the 1,500-2,000 W, 30-65 Joule range, and for pneumatic breakers where the bit shank is straight hex rather than slotted [S1][S2]. The Made-in-China OEM catalog lists demolition hammers in the 1,500 W, 1,500-1,700 W, and 1,700-2,000 W tiers, with reference price points at US$74-85 FOB for 500-piece MOQs on 3,125-class units [S4].
Impact Energy in Joules Is the Real Concrete-Performance Number
For 150-200 mm reinforced concrete slab demolition, the practical floor is 15-20 J per stroke; below that, productivity collapses and bit wear accelerates. Rotary hammers in the Bosch 1,100-1,300 W EXPERT band sit around 2-8 J, which is fine for drilling anchor holes but borderline for sustained chipping on 100 mm+ slabs [S2].
Demolition hammers in the 1,500-1,700 W class typically deliver 16-25 J per stroke, the band that covers wall chasing, tile removal, and floor demolition on 80-150 mm concrete. The 1,700-2,000 W class adds 25-65 J single-stroke energy, which is where the SDS-max GBH 8-45 D and similar breakers operate, and is also the range pneumatic breakers target with sustained 800-1,500 BPM at 80-120 psi shop-air supply [S1][S2][S3].
Power Source: Mains, Cordless, or Compressed Air
Corded mains remains the default for demolition hammers above 1,300 W because continuous 1,500-2,000 W draw is hard on battery packs. The Bosch catalogue indexes 18 corded pro-class units in the 720-2,000 W input range, with no cordless entries above 1,300 W in the demolition-hammer family as listed [S2].
Compressed-air breakers dominate plant shutdown, oil-and-gas, and confined-space work because they eliminate electric-spark ignition risk. Reference air-hammer units run 30-90 lb class at 80-120 psi and 800-1,500 BPM, with hex 1-1/8 in x 6 in shank as the dominant industrial pattern [S1]. For construction sites without compressor access, electric 1,700-2,000 W SDS-max breakers remain the most common path, and they are the same class linked from our marble cutter selection for demolition spec map for slab-cutting adjacency.
Side-by-Side Comparison: Three Chuck/Power Tiers
The decision matrix below lines up the three working tiers against concrete thickness, bit inventory, and the right operator weight. Vibration, mass, and dust control drive the trade-off, not headline wattage [S2][S3][S4].
SDS-plus 720-1,300 W: 2-8 J, drilling 6-32 mm, light chipping up to 50 mm screed, 2.5-5 kg tool mass. Best for anchor and rebar dowel work. SDS-max 1,500-1,700 W: 16-25 J, drilling 40-80 mm, wall and floor demolition 80-150 mm, 6-12 kg mass. The general-purpose concrete demolition class. Hex / pneumatic 1,700-2,000 W: 25-65 J electric, 30-90 lb pneumatic, slabs 150-300 mm, foundation breaking, road patch work, 10-30 kg mass [S1][S2][S3].
Where the Demolition Hammer Is the Wrong Tool
Demolition hammers are percussion-only or rotary-only machines, not the right pick for clean steel cutting, rebar separation, or wall-saw-grade straight cuts. For thin-section clean cuts, a wall saw or a marble cutter spec map for masonry work typically beats a hammer on tolerance and on operator hours. Likewise, for non-structural interior stripping, an aerial work platform plus hand breaker is often faster than a heavy hammer in a lift basket. [S2]
Continuous 1,500-2,000 W run time also means a 16 A supply, not a 10 A site outlet, and that rules out many interior fitout jobs. The 1,500 W class is the practical mains ceiling on most European site breakers, which is why Bosch's heaviest 1,750-2,000 W class lists 16 A plugs and is generally site-generator fed [S2].
Operator Safety, Vibration, and Dust Constraints
Three-axis vibration for sustained chipping commonly reads 8-15 m/s² on 1,500-2,000 W breakers, which limits trigger time to roughly 2-4 hours per shift under ISO 5349 guidance (treat the 8-hour A(8) exposure action and limit values as the binding reference). This is why most OEM catalogues pair the demolition hammer with an external dust extractor and an active vibration side handle [S2][S3].
Eye protection, FFP2/FFP3 respiratory protection for silica dust, and hearing protection above 100 dB(A) are non-negotiable on 1,500-2,000 W class work. Pneumatic breakers add a 90-100 dB(A) exhaust note on top of the impact noise, so dual hearing protection (earplugs plus muffs) is the site norm for the 30-90 lb class [S1].
Standards, Service, and Sourcing Signals
Demolition hammers sold in the EU carry CE-EN 60745 (hand-held motor tools) and IEC 62841-2-6 for hammer-specific requirements, with vibration and noise declared in the technical file. Dust extraction follows EN 60335-2-69 class M or H on OEM-matched extractors, which is the only way to keep the silica load under threshold on indoor work [S2][S3].
For 2026 procurement, two signals are worth tracking: Bosch continues to push EXPERT-grade SDS-max bits priced roughly 20-40% above standard SDS-max, and Fixtec's OEM line has expanded the FDH-class (150 mm and 145 mm shank groups) to cover 1,500-1,700 W demolition hammer bodies at sub-US$100 FOB reference points [S2][S3][S4]. Expect the cordless demolition-hammer ceiling to push from 1,300 W toward 1,500 W equivalent over the next two cycles as 2,000+ Wh backpack and slide-on packs reach the field. For related cross-tool selection, our marble cutter spec map for bridge construction covers the adjacent cutting class.
Spec-level background on the components involved: demolition hammer, and rotary hammer.