The use of a high performance brushless motor gives unsurpassed durability. No maintenance needed.
No carbon brushes to produce impurities that can affecct delicate electronic parts.
Precision motor insures highly stable screw tightening operations.
External location of the torque adjustor eliminates the danger of the setting being accidentally changed.
Both lever start or push-to-start systems are available for the brushless model BL-5000 and BL-7000. Use the system that is most convenient to the job at hand.
Motor heat-up is nominal, even when the tool is operated continuously.
Required maintenance for BL-Series compared with CL-Series
The elimination of brushes and use of non-contact switches and parts of superior durability means there is no need to replace the expendable parts.
Parts replacement is necessary after expiration of warranty. Replacement of carbon brushes, rotors, reducers, bearings and switches (direction, start and limit switches), grease-up, removal of carbon build-up and inspections.
Durability test of replacement parts (an example)
Durability of torque control clutch-gear mechanism
Durability of bearings
20 million screw tightening operations conducted
Assuming 7,200 screws are tightened in one day,
20,000,000 operations / 7,200 screws = 2,777 days
200 work days/year = 14 years
40,000 hours (guaranteed by manufacturer)
Assuming 7,200 screws are tightened
with 2 hours of continuous operation
(1 second per screw) in one day,
40,000 hours / 2 hours = 20,000 days
200 work days/year = a lifetime of 100 years
Used in assembling Cell phones, digital cameras, optical pickups
BL-5000 & BL-7000
Used in assembling Computers, copiers, telephones, scanners, car navigation monitors, Automobile parts, TVs, air conditioners, fan heaters, video recorder