KILEWS brushless electric screw technology

[SL:kilews-en]



Founded in 1984, KILEWS INDUSTRIAL is now the world's largest manufacturer of hand-held electric screwdrivers. With KILEWS Electric Tools, the company stands for the most advanced products with the highest quality, which make productions all over the world more efficient and safer.

Our range includes KILEWS low-voltage screwdrivers, control units and torque measuring devices as well as the matching power supplies and chargers. The KILEWS brushless low-voltage screwdrivers for ESD-protected work areas and cleanrooms have a durable, maintenance-free and powerful electric motor and do not emit any coal dust.

Wired Corded screwdriver      Corded EC screwdriver      Cordless screwdriver      Screwing systems in comparison


Electric screwdrivers vs. pneumatic screwdrivers - energy efficiency and sustainable installation
 
With an electric screwdriver, you can sustainably save over 3,000 m3 of air consumption per year. With an average consumption of approx. 6.5 kWh/year, you reduce your costs with the same screwdriving performance.

Example calculation:

 

 Screws per day

 Pure screwdriving time per day

 Working days per year

 Air consumption m3 / year

 Electricity consumption kWh / year

 Costs € / kWh

Costs € / year

 Pneumatic screwdrivers

 4,800

 2 hours

 225

 3,240

 356.40

 0.15 €

 53.46 €

 Electric screwdrivers

 4,800

 2 hours

 225

 --

 6.5

 0.15 €

 0.98 €

When and why does a brushless electric screwdriver make sense?
 
A brushless motor is an electric motor without carbon brushes, that is, without sliding contacts. In brushless motors, there is no electrical contact between the moving rotor and the stationary stator.

A brushless electric screwdriver is necessary:

  • When used in cleanrooms
  • When assembling sensitive or electrical components
  • In ESD environments
  • For > 500,000 screwings per year

Other arguments in favor of brushless technology:

  • Brushed technology is no longer being further developed in screwdriving technology
  • Less downtime due to time-consuming maintenance work
  • Almost no price difference between brushed and brushless technology


 Maintenance costs brushed

 Maintenance costs brushless

 Screwings

 Explanation

 1st year

 --

 --

 500,000

 First pair of carbon brushes included with each screwdriver

 2nd year

 approx. 375.00 €

 --

 1,000.000

 New motor with new coals required

 3rd year

 approx. 18.75 €

 --

 1,500,000

 New carbon brushes required

 4th year

 approx. 375.00 €

 --

 2,000,000

 Next motor change necessary

Difference between lever start and push start system
 
Lever start system:
The electric screwdriver is started by pressing the start button by hand.


Push start system:
The electric screwdriver starts by pressing the screw on the screw head.


Our wide range of screwdriving systems


Corded electric screwdrivers (brushless)

Corded screwdrivers for universal use in your production. With mechanical shutdown coupling.


Specifications:

  • Maximum torque is 50 Nm
  • Can be used in ESD zones
  • High repeatability for screw fastening
  • Quick-release drill chuck for quick and easy change
  • No coal dust emissions, making it suitable for cleanroom workplaces
  • Process reliability through optional tightening time monitoring and screw counting
  • Speed control and adjustable soft start with optional soft start module
  • Plastic case
  • Connection cable max. 15 meters


You will find matching accessories for all electric screwdrivers.


Choose your electric screwdriver now 


Corded EC screwdrivers (brushless)

Specially designed for precise torque and angle monitoring.


Specifications:

  • High process reliability due to built-in torque sensor with an accuracy of 0.1%
  • Torque and angle of rotation monitoring
  • Data archiving
  • Almost infinite possibilities for tightening strategies, monitoring and integration into customer systems
  • Long cable lengths can be realized
  • High repeatability for screw fastening
  • Quick-release drill chuck for quick and easy change
  • No coal dust emissions, making it suitable for cleanroom workplaces


You will find matching accessories for all EC screwdrivers.


Our EC screwdrivers in the shop 


Cordless screwdriver straight or with pistol grip (brushless)

Can be used flexibly in your production thanks to battery operation with rechargeable batteries and two different handle shapes.


Specifications:

  • Cordless
  • ESD version (dissipative screwdriver housing)
  • Battery cell monitoring, to avoid overcharging or undercharging the batteries
  • Built-in LED lighting
  • High repeatability for screw fastening
  • Quick-release drill chuck for quick and easy change
  • No coal dust emissions, making it suitable for cleanroom workplaces


You will find matching accessories for all cordless screwdrivers.


To the cordless screwdrivers


Comparison of screwdriving systems at a glance


 Shutdown method

 Advantages

 Disadvantages

Cordless screwdriver

  • Mechanical shut-off clutch
  • via preload of the compression spring in the shut-off clutch
  • Inexpensive
  • High repeatability
  • High speeds possible
  • No need for slow braking
  • IO/NIO statement about current value possible

The torque to be adjusted must be determined with a measuring device.

Electric screwdriver with power cut-off

Specification of a current value proportional to the torque.

Shutdown when current in the motor has reached a set value.

  • A torque value can be entered
  • IO/NIO statement about current value possible
  • Multiple torques can be stored in one device
  • Inaccurate (deviations > 8% - 15%)
  • Very expensive in terms of accuracy

EC screwdriving systems (TCG series)

 Via built-in torque sensor.

  • Very high repeatability
  • Direct torque input possible
  • Torque and angle of rotation display
  • IO/NIO statement
  • Documentable
  • Very long service life
  • Easily controllable
  •  Training of employees necessary

Do you have any questions or need personalised advice?

Please feel free to contact us by phone or email using our contact form.


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