Specifications - Hitachi WH 14DMR Technical Data And Service Manual

6. SPECIFICATIONS

6-1. Specifications
Models WH 14DMR/WR 14DMR
Model
Item
Capacity
Tightening torque
Tip condition
Type of motor
Enclosure
Type of switch
Handle configuration
No-load rotational speed
Impact rate
Main body
Weight
Battery
Overall length x height
Center height
Battery
(Type EB 14B)
Battery
(Type EB 1426H/
EB 1430H)
Charger
(Model UC 14YFA)
Cordless impact driver
WH 14DMR
Small screw M4 --- M10 (5/32" --- 3/8")*
Ordinary bolt M6 --- M14 (1/4" --- 9/16")
High-strength bolt M6 --- M12 (1/4" --- 15/32")
140 N m (1430 kgf cm, 1240 in-lbs.)*
• •
6.35 mm (1/4") Bit holder
Fan cooled rare-earth magnet motor
Main body: Polyamide resin + elastomer
Aluminum alloy die casting
Elastomer
• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •
Storage battery: Polyamide resin (black)
Charger: ABS resin (black)
Trigger switch with forward/reverse changeover pushing button (with brake)
T-type
0 --- 2,600 /min
0 --- 3,200 /min
1.8 kg (3.9 lbs.) (Includes battery)*
0.86 kg (1.9 lbs.)
162 mm (6-3/8") x 236 mm (9-19/64")
27 mm (1-1/16")
Sealed cylindrical nickel-cadmium batteries
Nominal voltage: DC 14.4 V
Nominal life: Charging/discharging approximately 300 cycles
(in the case of the Model UC 18YG)
Nominal capacity: 2.0 Ah
Sealed cylindrical nickel-metal hydride batteries
Nominal voltage: DC 14.4 V
Nominal life: Charging/discharging approximately 500 cycles
(in the case of the Model UC 14YFA)
Nominal capacity: 2.6 Ah/3.0 Ah
Charger power source: single-phase AC, 50/60 Hz
Voltage: Depending on the order specification
Power input: 56 W
Charging system: Constant current charge with feedback control
Overcharge protection system: (1) Battery voltage detection (
Output voltage: 7.2 V --- 14.4 V
Output current: 2.6 A
Charging time: Approx. 50 minutes (for BL-type EB 14B battery at 20 ûC)
Approx. 60 minutes (for type EB 1426H battery at 20 ûC)
Approx. 70 minutes (for HL-type EB 1430H battery at 20 ûC)
Product weight: 0.6 kg
Operable ambient temperature range: 0 ûC --- 40 ûC
The maximum allowable temperature of the EB 14B type battery is 55 ûC and the
EB 1426H or EB 1430H type battery is 45 ûC.
1 Ordinary bolt M10 --- M16 (3/8" --- 5/8")
High-strength bolt M8 --- M14 (5/16" --- 9/16")
2
200 N
12.7 mm (1/2") Square drive
Housing
• • • • • •
Hammer case
• • • • • • • • •
Protector
4
167 mm (6-37/64") x 236 mm (9-19/64")
Battery temperature detection (dT/dt system) for
Ni-MH battery
(2) Battery surface temperature detection
(thermistor)
(3) 120-minute timer
--- 6 ---
Cordless impact wrench
WR 14DMR
m (2040 kgf cm, 1770 in-lbs.)*
• •
2 V system)
3