Powerful 12.0 AMP motor gives more power and variable (2,800 – 11,000) RPM speed.
SJSII has a leaf spring and cam gear drive mechanism that is designed to keep vibrations down.
SJSII has a mechanical gear drive that can help protect the motor and gears from damage. When the wheel is forced to stop, the drive dampens the force on the gear so that it doesn’t break.
A speed control dial lets the user change the speed to match the application.
The Electronic Controller is a three-part electronic feature that is designed to provide the power needed in high torque applications for longer tool life. It is made up of three parts.
Powerful 12.0 AMP motor gives more power and variable (2,800 – 11,000) RPM speed.
SJSII has a leaf spring and cam gear drive mechanism that is designed to keep vibrations down.
The Makita 4-1/2″ SJSII High Power Angle Grinder (GA4542C) has a lot of power, but it also has a lot of convenience, comfort, and safety features that make it last longer in the workplace. In addition, it can be used to cut or grind ferrous metal; remove paint and rust; clean up shipyards; polish metal; cut steel; cut brick and masonry; and more. Gear drive system SJSII is built into the GA4542C. It helps protect the motor and gears from damage by dampening the force on the gear when a wheel has to stop. Besides that, the SJSII also has a leaf spring and cam gear drive mechanism that is designed to reduce vibration for more comfortable use over a long time. The 12 AMP motor has a range of 2,800-11,000 RPM so it can be used for a wide range of tasks. Labyrinth construction protects the motor with a complex set of channels that keep dust and other things from getting inside. Add-ons include epoxy on both sides of the armature coil and a powder-coating on the field, which protects it from damage. Part of this makes a barrier as it turns. It’s designed to keep dust and debris from getting into the tool, which will make it last longer.
The most positive thing about this grinder is that it doesn’t make a lot of noise. It’s even quieter than some Metabo grinders, which are usually thought to be the best in the world by tradesmen.
There are air inlets on the side of this Makita tool, right where a hand would be. This is the most bad thing about this tool.
These side inlets make it easy for dirt and grime from hands and gloves to get into the grinder.
They have very strong suction at these inlets, which is why they are so important.
Obviously, this grime intake could cause the motor to break down before it should.
When you weld, your hands or gloves pick up a lot of oily grime from the metals you are welding.
A tool’s motor can’t have this dirt and grime sucked right into it.
OK, but not as powerful as Metabo’s other power tools.
The Makita’s gearbox moves farther from the gear to the motor than a comparable Metabo’s. This means that the gearbox on the Makita could wear out faster than on a Metabo.
With all that grease in it, it runs even hotter.
This extra grease is usually used to make up for gears that don’t fit together very well.
Overall, most people might think that these negatives aren’t that bad.
In fact, if I hadn’t used Metabo grinders, I would have given this Makita a 5 and called it the best grinder I’ve used.
4 stars because I have used Metabo grinders, so that’s why.
kd
