BIG STONE KOREA

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ABOUT
COMPANY

ADVANTAGE

ORGANIZATION

Mar. 1986.

Established with a name 'YungPoong Co., Ltd.
(parent company of Big Stone)'.
322D model developed.
OEM business started with Furukawa, Japan.
Become official supplier of Korea Coal Organization : 322D


Feb. 1993.

324D(TY24LD) model developed.
OEM business started with TOYO, Japan.
Become the exclusive supplier of pneumatic rock drill
in entire South Korea.


Jan. 1996.

Become a supplier of rock drill parts for Yamamoto, Japan.


Jan. 2001.

Company name changed Big Stone Rock Drill Co., Ltd.

Jan. 2005.

SANDVIK Sweden took over TOYO, Japan.
Countinue OEM business with SANDVIK-TOYO.


Dec. 2010.

OEM contract with SANDVIK-TOYO finished.


June. 2011.

Developing Big Stone's own overseas sales and
distributor over the world.

Jackleg(Horizontal)

BRD24LD (TY24LD, RD245)

MODEL
TOYO and SANDVIK OEM Model
TOYO : TY24
SANDVIK : RD245


Explanation

Unlike conventional leg drills designed primarily for maximum drilling speed,
the BRD24LD features a sound balance between the pusher leg and the drill.
This ensures stabilized operation through a wide range of drilling angles.
Moreover, the pusher leg absorbs the drilling vibrations very effectively that the operator can use it
for many hours of speedy drilling operation without excessive fatigue.
Another feature is the concentration of all controls on the back head of the drill.
This enables the operator to control the drill quickly and easily.
The pusher leg is as light-weight as it can be.

Advantage

Perfect Balance of Drill and Pusher Leg / Performance Equal to Air Flushing /
Adaptable to Long-hole Drilling / Automatic Water-feed Device

Jackleg(Horizontal)

BRD280LD Rock Drill

MODEL
TOYO and SANDVIK OEM Model
TOYO : TY280L or TOYO280
SANDVIK : RD2850


Explanation

BRD280LD with its high drilling performance is most suited for quick drilling operations.
Its powerful percussion and torque ensure a fast drilling speed in any rock formation.
All internal parts are wear protected and highly durable which in turn results in low spare parts cost and
enables the drill to maintain its high performance for a long period of time.
The drill and the pusher leg are well balanced which gives a stable operation with a minimum of recoil.
BRD280LD operates with a high drilling speed and minimizes the operator´s fatigue and the cost of drilling.

Advantage

High Drilling Speed / Ease of Operation / Durability and Continuous High Performance /
Light Pusher Leg Providing Stable Feed Pressure

Jackleg(Horizontal)

BRD85LD (TY85LD, RD855)

MODEL
TOYO and SANDVIK OEM Model
TOYO : TY285L
SANDVIK : RD855


Explanation

BRD85LD is a middle-weight leg drill.
It has many outstanding features not available on similar sized leg drills of other companies.

Advantage

Outstanding Penetration Rate / Easy Handling / Long Service Life

Jackleg(Horizontal)

BRD322D (322D)

MODEL
Furukawa OEM Model


Explanation

Unlike conventional leg drills designed primarily for maximum drilling speed,
the BRD322D features a sound balance between the pusher leg and the drill.
This ensures stabilized operation through a wide range of drilling angles.
Moreover, the pusher leg absorbs the drilling vibrations very effectively
that the operator can use it for many hours of speedy drilling operation without excessive fatigue.
Another feature is the concentration of all controls on the back head of the drill.
This enables the operator to control the drill quickly and easily.
The pusher leg is as light-weight as it can be.

Advantage

Release Valve and Stop Plunger / Air-Compressed Pawl / Perfect Balance of Drill and Pusher Leg
Performance Equal to Air Flushing / Adaptable to Long-hole Drilling / Automatic Water-feed Device

Jackleg(Horizontal)

BRD90L (PD90L)

MODEL
Furukawa OEM Model


Explanation

BRD90L is the most powerful leg drill among our drills with
90mm of piston diameter and 3,130mm of extended pusher leg.


Advantage

Exhaust Direction Conversion Silencer / Optimal Hitting Force /
Replaceable Cylinder Bush and Driver Nut /
Performance Equal to Air Flushing / Automatic Pusher Leg Adjustment

Sinker(Vertical)

BRD16C (TY16C, RD160)

MODEL
TOYO and SANDVIK OEM Model.
TOYO : TY16C
SANDVIK : RD160


Explanation

BRD16C is light-weight and easy to handle.
It is a very effectiveunit for drilling of narrow faces, in poor footing ground,
or for secondary drilling and other light jobs.
Although a portable machine, its drilling speed is high and
the drill excels in durability and stability.

Advantage

Operator friendly / High efficiency / Excellent durability

Sinker(Vertical)

BRD24C (TY24C, RD240)

MODEL
TOYO and SANDVIK OEM Model.
TOYO : TY24C
SANDVIK : RD240


Explanation

BRD24C is an economical rock drill with powerful torque and percussive forces,
and it is designed for long hole drilling.
Its powerful torque and percussion, generated by the long stroke mechanism and
the high efficiency tubular valve,
enable a superb performance for drilling down to about 6 m and
is making the drill efficient in hard rock.
The design of BRD24C makes it drill fast and efficient and
the machine is also durable and easy to handle.

Advantage

Powerful drilling / High durability / Easy operation

Sinker(Vertical)

BRD22D (22D)

MODEL
Furukawa OEM Model


Explanation

BRD22D is an economical rock drill with powerful torque and percussive forces,
and it is stably designed for long hole drilling.
Its powerful torque and percussion,
generated by the long stroke mechanism and the high efficiency tubular valve,
enable a superb performance for drilling down to about 6~8m
and is making the drill efficient in hard rock.
The design of BRD22D makes it drill fast and efficient and
the machine is also durable and easy to handle.

Advantage

Powerful drilling / High durability / Ultra Durable Piston /
Rifle Nut / Easy operation

Small Drill

6D Rotary Hammer(Palm Drill)

MODEL
6D Rotary Hammer(Palm Drill)


Explanation

Light and powerful mini drill
By improving the material of existing parts,
the performance and durability are improved to the best.
It is suitable for anchor bolting, rock cutting,
and splitting work at the rock mountain, construction, and mining site.

6D Rotary Hammer(Palm Drill)

Small Drill

CA7 Pick Hammer

MODEL
CA7 Pick Hammer


Explanation

It is a self-acting compact breaker that is used for various purposes and easy to handle.
Lightweight and widely used as a useful tool in civil engineering,
digging, concrete/asphalt grinding, etc.
Particularly used with one-body wedge for rock splitting in marble quarrie.
Simple structure, easy maintenance, and long service life.
When the subject is pressed with rod, it starts automatically and when released, it stops.

CA7 Pick Hammer

Small Drill

CA7 Pick Hammer

MODEL
AA-1 Auger Drill


Explanation

AA1 air auger drill is mainly used for drilling soft rocks.
In particular, it can be used in the coal or granitic mining tunnel.
It is used for drilling and inserting rock bolts at civil construction sites,
tunnel construction sites, etc.

AA-1 Auger Drill

DISTRIBUTORSHIP

Advantages of distributor

Requirment to be Distributor