Makita HR3000C User Manual download pdf (Page 3)

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INDUSTRIAL QUALITY POWER TOOLS

[email protected]

www.makita.co.za

Edition 6 March 2006

HR3000C

Rotary

Hammer

The right-size tool for the job

HR4011C

Rotary

Hammer

Overall features of the HR4011C such as externally accessible brushes, for quick and simple job-site servicing,

and the one-touch sliding chuck, for easy bit changes, make this tool more efficient to use and easier to operate

and service. The Makita HR3000C is well designed and it's in a class of its own when it comes to drilling speed.

Drilling Concrete? Get A

Rotary Hammer

Putting the rotary hammers to work

Rotary hammers fall into two general size classes: The smaller ones accept bits

with SDS or SDS-plus shanks, and the larger hammers use either SDS-max (looks

similar to a larger SDS bit) or spline drive (looks like the spline on a drive shaft or

truck axle). Within these classes, the tools are categorized by their nominal drilling

capacity, or the largest hole that the tool is designed to drill efficiently. The HR3000C

falls into the SDS-plus category and has a maximum bit diameter of 30mm with a

maximum core bit diameter of 90mm. The overall length of this tool is 391mm with a

net weight of 4.6kg. The HR4011C is part of the SDS-max group and has a

maximum bit diameter of 40mm and a maximum core bit diameter of 105mm.

Overall length of the HR4011C spans a whole 468mm and it weighs 3.6kg.

Concrete is a versatile but unforgiving material. The same qualities that make it so

useful also make concrete tough to work after it has cured. The most common way

that builders, remodelers, and carpenters encounter cured concrete is when they

need to put holes into it, such as for anchor bolts, pins, dowels, and plumbing or

electrical chases. You could make holes the old-fashioned way, with a hammer and

a star drill - a piece of hardened-steel that's struck, then rotated struck, then rotated

- to get a hole, eventually. Or you could use a hammer drill for a few small holes. But

for quickly drilling a lot of holes in concrete or in a masonry wall, nothing beats a

rotary hammer. Look out, though: with competition fierce and manufacturers

making a broad range of rotary hammers to fill subtle niches, the number of choices

available can be overwhelming. We recommend you look no further than the

Makita HR3000C and HR4011C Rotary Hammers. The HR3000C was rated

number one by the overseas magazine “Fine Homebuilding” in 2004 and is very

popular with various demolition and excavation contractors all around the world.

They all conclude that the HR3000C is in a class of its own due to a number of

reasons, such as its heavier weight and slightly larger capacity which proves to be

advantages. The controls are easy for gloved hands to use, and the variable-speed

switch is accurate, steady, and predictable. This tool features a clutch, which

disengages the motor from the output shaft in case the bit binds during drilling. The

long cord with strain relief and the easy-to-use chuck for speedy bit changing are

great user-friendly features. The HR4011C was introduced to you in the first edition

of the MaktimesSA and explained the concept of AVT (anti vibration technology)

which is an exclusive counterbalance system engineered internally to reduce

vibration up to twice that of competitor hammers. This model is a versatile, high-

powered rotary hammer for heavy-duty applications. It too, features a built-in

torque limiter that ensures stable torque control and disengages the motor should

the bit bind or hit reinforcements. The HR4011C also has precision machined, all

metal gears with more surface contact for more power.

To get a better picture of how well these tools perform, it is important to note their day-to-day performance as

well as to create a more objective hands-off drilling test. The way a tool feels in your hands is subjective, but

anyone familiar with power tools knows that often the feel of a tool is a reliable indicator of quality. Better tools

look solid, feel solid, and operate powerfully and smoothly. And when it comes to rotary hammers, lower

vibration translates to less user fatigue. Not only is the HR4011C powerful with a 1,050W motor and 6.7 joules

of impact energy, but it also has synchronized RPM (230 - 450) and BPM (1,350 - 2,750) to prevent overlapping

impacts for up to 50% more efficient drilling. A variable speed dial with 5 different preset speeds and electronic

speed control minimizes speed loss for 28% faster drilling. The HR3000C has a continuous rating input of

850W with a no load speed of 360-720 revs per minute. Its blows per minute is 1,650-3,300.

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Makita HR3000C User Manual Page 3

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