Rotary hammer HITACHI DH45MEY WSZ — 1500 W, SDS‑Max, 12.2 J impact, 45 mm concrete drill

HITACHI DH45MEY WSZ — 1500 W, SDS‑Max, 12.2 J impact, 45 mm concrete drill is a corded rotary hammer intended for heavy-duty drilling and chiselling in construction and renovation. The tool is powered by a 1500 W AC motor that delivers up to 12.2 J impact energy and over 1,200 impacts per minute. With an SDS‑Max bit holder it accepts large-diameter bits for concrete work and is rated to drill concrete up to 45 mm. The unit weighs 9.5 kg and features a grey and black housing built for jobsite durability.

Advantages

The brushless motor design provides maintenance-free operation by eliminating armature burnout and commutator wear, removing the need for carbon brush replacement. This efficient motor maintains high drilling speed and demolition performance even under voltage drop or when using an extension cord. The tool is designed to operate with engine generators thanks to a compact high-efficiency inverter circuit. Internal double-insulation construction combined with a sturdy aluminium die-cast body and plastic internal stator holder improves rigidity and motor durability. A vibration-absorbing handle reduces operator fatigue during prolonged use.

Suitable for

• Drilling holes in reinforced concrete and masonry up to 45 mm
• Chiselling and demolition work on floors, walls and concrete structures
• Heavy-duty renovation and construction site tasks requiring SDS‑Max tooling
• Use with portable generators or temporary power supplies on site

Key specifications

• Input power: 1500 W (AC)
• Maximum impact energy: 12.2 J
• Concrete drilling capacity: up to 45 mm
• Bit holder type: SDS‑Max
• Impacts per minute: over 1,200 bpm
• Weight: 9.5 kg
• Housing colour: grey and black
• Electrical supply: 230 V AC

How to use

Select an SDS‑Max bit suitable for the concrete diameter required and secure it in the chuck following the tool’s locking procedure. Ensure the workpiece is firmly supported and wear appropriate personal protective equipment including eye, ear and hand protection. Set the operating mode to drilling, hammer drilling or chiselling as needed and start the tool at idle before engaging the work surface. Apply steady pressure without forcing the machine; allow the brushless motor and hammer mechanism to perform the work. If using an extension cord or generator, confirm the power supply matches the tool’s 230 V AC requirement and avoid excessive voltage drop.

Usage recommendations

For extended life and consistent performance, use SDS‑Max bits that match the stated 45 mm capacity and keep the ventilations clear of dust. When performing long chiselling operations, take regular breaks to reduce heat build-up and allow the vibration-absorbing handle to reduce transmitted vibration. If operating from a generator, use one with sufficient rated output and stable voltage to avoid performance loss.