Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C

Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C Highlights

POWER: : Powerful 12.0 AMP motor delivers more output and variable (2,800 – 11,000) RPM
DURABILITY: : Electronic Controller is a three-part electronic feature designed to provide power and durability
COMFORT: : SJSII technology is a leaf spring and cam gear drive mechanism engineered to reduce vibration
VERSATILITY: : Variable speed control dial enables user to match the speed to the application
INCLUDES: : Grinding wheel, wheel guard, side handle, inner flange, lock-nut and wrench

About Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C…

The Makita 4-1/2″ SJSII High Power Angle Grinder (GA4542C) combines power, convenience, comfort and motor-protection features for longer-lasting industrial performance. It is ideal for cutting, grinding ferrous metal, paint and rust removal, shipyard maintenance, metal polishing, general steel grinding, auto repair work, cutting brick and masonry, restoration work, and more.

The GA4542C is equipped with SJSII, a mechanical gear drive system to help prevent motor and gear damage by dampening the force on the gear when the wheel is forced to stop. SJSII is also features a leaf spring and cam gear drive mechanism that is engineered to reduce vibration for increased operator comfort during extended use.

The 12 AMP motor delivers 2,800-11,000 RPM for versatility and maximum productivity. Labyrinth construction protects the motor with a complex set of channels, prohibiting dust and contamination from entering the motor. Additional protection features include a zig-zag epoxy applied to both sides of the armature coil, and a powder-coating to the field. This forms a barrier under rotation and is engineered to protect from dust and debris penetration for longer tool life.

Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C Features

• Powerful 12.0 AMP motor delivers more output and variable (2,800 – 11,000) RPM
• SJSII provides a leaf spring and cam gear drive mechanism that is engineered to reduce vibration for increased operator comfort during extended use
• Vibration absorbing side handle provides increased comfort on the job
• Electronic controller provides constant speed control which automatically applies additional power to the motor to maintain speed under load
• Electronic controller provides soft start which suppresses start-up reaction for smooth start-ups and longer gear life
• Electronic controller provides an electronic current limiter which helps protect the motor from overload in high torque applications
• Variable speed control dial enables user to match the speed to the application
• Labyrinth construction seals and protects the drive gear and bearings from dust and debris for increased durability
• Motor fan is designed with enlarged fins for increased air flow and a cooler running motor
• Complete zig-zag epoxy is applied to both sides of the armature coil and a powder coating to the field for protection from debris and longer tool life
• Spiral bevel gears for smoother rotations and a more efficient transfer of energy
• Fully aluminum constructed gear housing provides superior gear alignment and smooth transmission for increased durability and comfort
• “Tool-less” wheel guard for easy adjustment
• Slide switch with lock-on for continuous use

Watch Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C in Action

Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C includes:

(1) Inner Flange (224399-1)
(1) Lock Nut Wrench (782412-6)
(1) 4-1/2″ Grinding Wheel (A-95956)
(1) 4-1/2″ Wheel Guard (123144-0)
(1) Side Handle (162258-0)
(1) Lock Nut (224568-4)

Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C Specifications

Makita 4-1/2″ SJSII High-Power Angle Grinder GA4542C Resources

GA4542C/GA5042C Instruction Manual
GA4542C/GA5042C Parts Breakdown
Makita GA4542C/GA5042C New Tool Flyer (English)