ROTARY HAMMER 40 MM Brushless

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Product Code : DH40MEY

Brand Name : HITACHI

Product Description

HITACHI DH40MEY

40mm (1-9/16") Rotary Hammer SDS MAX

Specifications

Capacity		Drill bit: 40mm (1-9/16") Core bit: 105mm (4-1/8")
Power Input		1,150W
Bit Shank		SDS max
No Load Speed		250 - 500 / min
Full Load Impact Rate		1,430 - 2,850 / min
Overall Length		477mm (18-4/5")
Weight (including side-handle)		7.5kg (16.5 lbs.)
Vibration Total Values (triax vector sum)*	Hammer drilling into concrete	Vibration emission value : ah, HD = 8.0m/s2 Uncertainty K = 1.5 m/s2
	Equivalent chiselling value	Vibration emission value : ah, CHeq = 7.3m/s2 Uncertainty K = 1.5m/s2
Standard Accessories		Side Handle, Stopper, Rotary Hammer Grease A, Carrying Case

* As of November 2014. Among rotary hammers made by leading power tool manufacturers, surveyed by Hitachi Koki.

Maintenance-free

The product life cycle is significantly extended by eliminating troubles with armature burnout, layer short and commutator wear. Besides, no carbon brush replacement is required.

Fastest drilling speed in its class * even at voltage drops

Efficient brushless motor offers higher drilling performance even with an extension cord.
* As of November 2014. Among 40mm class rotary hammers made by leading power tool manufacturers, surveyed by Hitachi Koki.

Compatible with engine generators

Designed to be powered by engine generators as well, thanks to Hitachi's original compact and high efficiency inverter circuit.

Highest *1 Demolition Performance and Fastest *1 Drilling Speed in its class

Acheived by high efficiency brushless motor and optimised hammering mechanism.

*1: As of November 2014. Among 40mm class rotary hammers made by leading power tool manufacturers, surveyed by Hitachi Koki.
*2: A comparison of the model DH40MEY and the previous model DH40MRY. The results may vary depending on operating conditions.
*3: A comparison of the model DH40MEY and the previous model DH40MRY. Mean value for drilling into concrete with drill bits between 16mm and 40mm diameters. The results may vary depending on operating conditions.

* A comparison of the model DH40MEY and the previous model DH40MRY. The results may vary depending on operating conditions.

Hitachi's original, spring-type dynamic vibration absorber

Hitachi's original, spring-type dynamic vibration absorver with a weight and two springs moves in the opposite direction to the vibration direction of the main body. This results in reduced vibration and improved operating efficiency.

Vibration-absorbing handle

Vibration-absorbing mechanism with the transatory unit and the Neidhardt spring provides high vibration-absorbing effect.

The internal double-insulation construction with a very sturdy aluminium die-cast body and a plastic internal stator holder, is incorporated.

This makes the housing more rigid, significantly enhancing durability of the motor unit.

Push-button, constant speed control with variable speed

Equipped with a built-in electronic control circuit that can adjust the impact rate according to applications. Four-step impact rates can be selected by the rotation speed selector switch.