28mm Rotary Hammer with Brushless Motor DH28PEC

AC BRUSHLESS MOTOR Feature

DH28PEC

  • Brushless Motor
  • RFC
  • UVP
  • SDS-plus
  • Double Insulation

Highest Drilling Speed in its Class*1

  • Provided by stable rotation and hammering with constant speed control.

    Drilling Speed Comparison *2

    Drilling speed is approx 5% higher than DH28PCY (Existing model)

    Operating condition: Mean values for drilling into concrete in the downward direction with drill bits between 8mm and 28mm in diameter.

    1. As of July 2019. Among 28mm rotary hammers made by leading power tool manufacturers. (Survey by Koki Holdings)
    2. Vs. the existing model DH28PCY. The value is shown for reference purposes and may vary according to materials and conditions.

Lowest Vibration in its Class*1

  • Vibration to the handle from the mounted bit is reduced using dampers and a spring that absorb the shock due to hammering.

    Product internal structure image

    Vibration Value Comparison (approx.)*2

    Vibration Value is approx 27% reduced than DH28PB (Existing model without UVP)
    1. As of July 2019. Among 28mm rotary hammers made by leading power tool manufacturers. (Survey by Koki Holdings)
    2. Vs. the existing model DH26PC/PB. The values are shown for reference purposes and may vary according to materials and conditions.

Compact Body

  • The shortened overall length results in better handling.

    • Vs. the existing model DH28PCY/PBY.
    Compared to the existing models DH28PCY/PBY, the total length is 12mm shorter.

Built-in Auto Stop Function Supporting stable drilling / Improving efficiency during continuous operation

  • Effective when drilling continuously. Once one drilling time is stored on the tool, the motor automatically stops as the stored time passes.

    e.g., If it is 10 sec between switching on and off, that 10 sec is stored, and when it is drilled next, The motor automatically stops at 10 sec.
Caution
Auto Stop Function is to record the drilling time but not to ensure the drilling depth. It may not provide the same drilling depth owing to operator position, pushing force and variation among the work pieces. Please use the tool with a depth gauge to avoid inconsistent drilling depth.

HiKOKI Original Brushless Motor Technology

  • No wearing parts (carbon brushes, commutator, rotor coil)
  • HiKOKI original compact controller
  • Long Lifetime, Maintenance-free

    Long Lifetime, Maintenance-free

    Stable Performance during Voltage Drops

    Stable Performance during Voltage Drops

    Compact, Lightweight

    Compact, Lightweight

    Compatible with Engine Generators

    Compatible with Engine Generators

Changeable according to applications 2-step Rotation Speed

  • Makes it easy to drill a fragile material by pressing the changeover switch to reduce the rotation speed and impact rate.

    Display lamp & Changeover switch

Against sudden overburdening Reactive Force Control

  • Reactive Force Control logo

    When the tool bit is suddenly overburdened during operation, the slip clutch works or the built-in controller stops the motor output before the entire tool jerks.

Caution
Depending on operating conditions, the Reactive Force Control function may not work or may not provide the specified performance. Please make sure that the workpiece is placed and supported properly, and that the main unit is held firmly during operation.

New Construction for Motor Protection Labyrinth Ventilation Windows for reducing the ingress of dust and debris into the tool

  • Double ventilation windows (inlets) in labyrinth construction does less harm to the motor by reducing the ingress of dust and debris into the tool.

    Labyrinth ventilation windows
    A section of the labyrinth ventilation windows

Located on the side of the tool body for easy operation Large Change Lever

  • Large Change Lever
    Rotation only icon Rotation only
    For drilling in steel and wood etc.
    (with optional drill chuck and chuck adapter)
    Rotation & Hammering icon Rotation & Hammering
    For drilling into concrete etc.
    Hammering only icon Hammering only
    For chiselling of concrete and groove digging etc.
    Angle adjustment function lever position

    Angle Adjustment Function

    When using a cold chisel or cutter, the angle of the tool tip can be adjusted by setting the change lever as shown on the left.

Soft and easy to grip Elastomer-covered Side Handle

Easy to insert a bit One-push Bit Mounting

Easy to insert a bit

Specifications

Capacity Concrete 28mm
Steel 13mm
Wood 32mm
Core Bit 50mm
Power Input 900W
Bit Shank SDS-plus
No Load Speed 0 - 950/min
Full Load Impact Rate 0 - 4,300/min
Overall Length 355mm
Weight*1 3.0kg
Vibration Total Values (triax vector sum) *2 Hammer drilling into concrete Vibration emission value ah, HD = 10.7m/s2
Uncertainty K = 1.5m/s2
Equivalent chiselling value Vibration emission value ah, CHeq = 9.8m/s2
Uncertainty K = 1.5m/s2
Standard Accessories*3 Side Handle, Depth Gauge, Carrying Case
  1. Weight according to EPTA-Procedure 01/2003 (incl. the side handle but excl. a cord).
  2. The vibration total values were determined according to EN60745.
  3. Standard accessories vary by country or area.
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