52mm (2-1/16″) Rotary HammersDH52ME DH52ME 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 and highest demolition performance in its class even at voltage drop The efficient brushless motor offers higher drilling performance even with an extension cord used. Compatible with engine generators Designed to be powered by engine generators as well, thanks to Our original compact and high efficiency inverter circuit. Fastest*1 drilling speed and highest*1 demolition performance in its class The high efficiency brushless motor and the optimized hammering mechanism achieve the fastest drilling speed*1 and the highest demolition performance*1 in its class. As of March 2015. Among 52mm class rotary hammers made by leading power tool manufacturers, surveyed by Koki Holdings. A comparison of the model DH52MEY and the previous model DH50MRY. Mean value for drilling into concrete with drill bits between 16mm and 52mm diameters. The results may vary depending on operating conditions. A comparison of the model DH52MEY and the previous model DH50MRY. The results may vary depending on operating conditions. Our original, pendulum dynamic vibration absorber (Only for DH52MEY) reduces the vibration from concrete drilling or chiseling by moving a weight and a leaf spring in the opposite direction to the movement of the hammer. A comparison of the model DH52MEY and the previous model DH50MRY. The results may vary depending on operating conditions. Vibration-absorbing handle provides high vibration-absorbing effect by employing both transatory and hinge units. The internal double-insulation construction with a very sturdy aluminium die-cast body and a plastic internal stator holder makes the housing more rigid, significantly enhancing durability of the motor unit. Control panel 1. Push-button, constant speed control with variable speed Due to the 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. Display Lamp No Load Speed 110V 120V 127V 110/min 160/min 210/min 260/min 220V 230V 240V 110/min 160/min 220/min 280/min Full Load Impact Rate 110V 120V 127V 1,000/min 1,400/min 1,800/min 2,200/min 220V 230V 240V 1,000/min 1,400/min 1,900/min 2,400/min 2. Power Lamp lights up when the plug is inserted into an outlet. One push action for quick bit mounting A bit can be mounted by simply inserting it into the tool holder. Large change lever An up-sized mode change lever is located on the top of the tool body for easier handling. Large trigger switch Upsized, easy-to-grip trigger switch for more control. Continuous operation function (available for the Hammering Mode) keeps the tools running even after the trigger switch is released, making chiseling easier. Specifications Model DH52ME Capacity Drill bit: 52mm (2-1/16″) Core bit: 160mm (6-1/4″) Power Input 1,500W Bit Shank SDS max No Load Speed 110V, 120V, 127V: 110 – 260/min 220V, 230V, 240V: 110 – 280/min Full Load Impact Rate 110V, 120V, 127V: 1,000 – 2,200/min 220V, 230V, 240V: 1,000 – 2,400/min Overall Length 585mm (23-1/32″) Weight (including side-handle) 11.0kg (24.2lbs.) Vibration Total Values (triax vector sum)* Hammer drilling into concrete Vibration emission value : ah, HD = 14.0m/s2 Uncertainty K = 1.5 m/s2 Equivalent chiselling value Vibration emission value : ah, CHeq = 15.5m/s2 Uncertainty K = 1.5m/s2 Standard Accessories Side Handle, Stopper, Rotary Hammer Grease A, Carrying Case The tri-axial vibration values were measured according to EN60745-2-6.
