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Products
&
Applications
Anchoring Construction
Rockbolt Construction
Water Draining Boring
Grouting Construction
Investigation Boring
Water Well Drilling
KOKEN Products & Application
COMPANY INFORMATION
Suwa Factory
Atsugi Factory
KOKEN Earth Science Museum
Company name :
Data of foundation :
Capital :
President :
Number of employees :
Head office:
Telephone :
Facsimile :
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Head office
KOKEN BORING MACHINE CO.,LTD.
October 16,1947
Japanese ¥1,165,415,000
Sachihiro Suenaga
Approx. 230
1F Mejiro Nakano Bldg.,2-17-22, Takada, Toshima-ku, Tokyo, Japan #171-8572
+81-(0)3-6907 7515
+81-(0)3-6907 7525
http://www.koken-boring.co.jp
Atsugi factory,Atsugi city,Kanagawa pref., Japan / Suwa factory, Suwa-Gum,Nagano pref., Japan
Sapporo,Sendai,Niigata,Kanazawa,Tokyo,Nagano,Osaka,Takamatsu,Yamaguchi,Fukuoka,Kumamoto
KOZO CONSTRUCTION CO.,LTD.
KOKEN Earth Science Museum
Anchoring construction
We offer you suitable drilling machine for various drilling constructions.
Rotary Percussion Drill(Arrow Drill)
Talus, Loam, Silt, Gravel, Mudstone, Slate,
Granite, Weathered schist etc.
Construction specifications
Purpose Drilling dia. (m/m)
Earth anchoring 101~225
Rock anchoring 101~225
KOKEN'sRotary Percussion Drill RPD Series is equipped with a hydraulic-driven percussion unit developed by our original technics, and is capable of very rapid drilling.
Crawler mounted
RPD-180C-LF
RPD-40C
Model RPD-180C-LF RPD-40C(2)
Drilling dia. mm 101~225 60~137
Bit rotation rpm 138 33/66
Torque kN-m 8.7 4.0/2.0
Percussion blow bpm 2,200 2,000
Percussion energy J 750 350
Thrust kN 54 25
Length stroke mm 4,100 2,200
Powerunit kW/rpm 135/2,100 40 (54PS)/1,800
Demensions(L×W×H) mm
Weight kg 17,000 5,500
Skid based
RPD-75SL-H RPD-30LK
Model RPD-75SL-H2(2) RPD-30LK(2)
Drilling dia. mm 101~157 65~125
Bit rotation rpm High Low
51 80 40
Torque kN-m 3.0 6.0 2.5
Percussion blow bpm 3,000 2,200 1,200
Percussion energy J 350 500 250
Thrust kN 60 16
Length stroke mm Full stroke Liner plate
1,630 2,060 1,940
Power unig kW-P 55-4 30-4
Demeinsions(L×W×H) mm 3,250×1,700×1,440
Weight Drill unit kg 2,550 620
Power unit kg 1,500 1,020
The anchoring construction is conducted as one of the important construction methods for counter measuring landslide around the tunnel excavating entrance, protecting steep slope. Eternal anchoring is basically used for preventing landslide, toppling the protective walls, constructing steel pipes, deep piling, concrete protective walls and crib grating in parallel. For anchoring construction, it is common to adopt the double-rod rapid drilling with Rotary Per-cussion Drilling machines. The drilling diameters are usually φ101-135, with the drilling length of 10 to 30m.
Geological conditions
Purpose Drilling length (m) Drilling dia. (m/m)
Civil engineering 20~30 56~86
Landslide countermeasure 30~120 65~150
Tunnels for railroad and highway 50~200 86~120
Water draining boring
Rock bolt construction
KOKEN Products & Application
Rotary Percussion Drill Skid based
RPD-30LK
This construction method is effective for both preventing the
slope weathering and protecting the slope itself which is likely
to be unstable due to permeating water as well as weathering
even if it is stable right after cutting if off. Aside from the slope,
it is effective for rocks that are likely to be weathered or al-
ready weathered and highly likely to collapse, hardpan as well.
Loam, Gravel, Silt, Sandstone, Mudston, Tuff, Slate, Andesite
Crawler mounted
RPD-180C-LF
Tunnel water draining boring
Rotary Percussion Drill(Arrow Drill)
RPD-75SL-H
Landslide prevention drainage boring
Skid based
Rotary Percussion Drill(Arrow Drill)
Spring water during tunnel drilling causes unstableness of the
tunnel working face, and furthermore, when it comes to the spring
water with the strong water pressure on can cause the soil
collapse or the inundation of the whole tunnel path. Especially, for
the undersea tunnel or mountain tunnel, countermeasures for
spring water caused by the water level reduction comes important.
Likewise for landslide-prone areas, groundwater is one of the key
Geological conditions Construction specifications
Model RPD-30LK(2)
Drilling dia. mm 65~125
Bit rotation rpm 51
Torque kN-m 2.5
Percussion blow bpm 1,200
Percussion energy J 250
Thrust kN 16
Length stroke mm 1,630
Power unig kW-P 30-4
Demeinsions(L×W×H) mm
Weight Drill unit kg 620
Power unit kg 1,020
factors for the slope collapse, and thus draining the groundwater
is effective for stabilizing the slope. asdgg;lkjadflkjads;lfkjasd;flkja
For water drainage boring, it is important to chose the most
effective method based on the soil conditions, geographical
conditions etc. Generally, drilling is done horizontally or in 3-10
degrees upper directions with the diameters of 56-150m/m and
the length of 50-200m.
Specifications
Geological conditions
Grouting constructions
Purpose Drilling length (m) Drilling dia. (m/m)
Dam grouting dia. 20~100 46~66
We offer you suitable drilling machine for various drilling constructions.
Grouting work for the dam rock bed cracks is conducted
for the purpose of preventing spring water and water leak,
as well as the integration, strengthening, reinforcement of
the rock bed, as opposed to the secondary causes such
as the cracks caused by the fault, joints, beddings and
some secondary cracks caused by blasting. Grouting ma-
terials are commonly cement paste or cement bentonite
paste.
Grouting methods
● Curtain grouting: retaining permeated flow in the foun-dation rock bed, reducing uplift presure,preventing water leak.
● Consolidation grouting: Integrating the foundation rock bed, improving deformity.
● Contact grouting: Close connecting concrete dam major structure and its foundation rock bed.
● Blanket grouting: Restraining permeating flow in the sur-face layer portion of the dam water shutting zone.
● Joint grout: Integration of block joints for concrete dam.
Sand stone, Mud stone, Tuff breccia, Slate, Schist, An-
desite, Granite etc.
RPD-180C-LF
Rotary Percussion Drill(Arrow Drill)
Model RPD-180C-LF
Drilling dia. mm 101~225
Bit rotation rpm 138
Torque kN-m 8.7
Percussion blow bpm 2,200
Percussion energy J 750
Thrust kN 54
Length stroke mm 4,100
Powerunit kW/rpm 135/2,100
Demensions(L×W×H) mm
Weight kg 17,000
KOKEN'sRotary Percussion Drill RPD Series is equipped with a hydraulic-driven percussion unit developed by our original technics, and is capable of very rapid drilling.
Investigation boring
Clay, Loam, Gravel, Silt, Sand, Sandstone, Mudston,
Tuff, Slate, Andesite
Resource investigating boring
Purpose Drilling dia. (m/m)
Soil condition investigation 46~101 Investigation for railroad, roads, dams 56~101
Limestone deposits 76~101
Metal deposits 76~101
KOKEN Products & Application
Boring work with the purposes of investigation varies,
ranging from the underground resource investigation
for coal mine, metal deposits, geothermal energy, hot
spring, ground water to investigation for architectural
structure foundation as well as civil engineering such
as railroads, roads, bridges, ports, dams etc. along with
the investigation for land subsidence, landslide disas-
ters to deep depth boring for burring seismic observing
devices.
Targeted geological conditions vary ranging from soft
soils such as sand, silt, hardpan to hard rock such as
sandstone, mudstone, slate, andesite, granite. Also,
geographical locations vary from flatland, mountainous
terrains to above-sea and undersea conditions. There-
fore, machines to be used should be chosen appropri-
ately fitting purposes.dfjkasdl;fk
Boring depth is generally up to 100m for foundation
investigation, up to 200m for the civil engineering arias
such as railroad, roads and dams. When it comes to
underground resource investigation for coal mine ex-
ploration, mining, geothermal and hot spring, the depth
is approximately up to 2,000m.
Construction specifications
Undersea geological investigating boring
Geological conditions
RPD-75SL-H
Rotary percussion drill(Arrow Drill)
Model RPD-75SL-H2(2)
Drilling dia. mm 101~157
Bit rotation rpm High Low
80 40
Torque kN-m 3.0 6.0
Percussion blow bpm 3,000 2,200
Percussion energy J 350 500
Thrust kN 60
Length stroke mm Full stroke Liner plate
2,060 1,940
Power unig kW-P 55-4
Demeinsions(L×W×H) mm 3,250×1,700×1,440
Weight Drill unit kg 2,550
Power unit kg 1,500
Boring rod
We offer you suitable drilling machine for various drilling constructions.
3cone bit Rods for "Arrow Drill"
Bits for "Arrow Drill"
Type O.D. Thickness Lenght Weight Rod coupling
Remarks D(mm) t(mm) L(m) kg/3m Inside dia.(mm)
F14H 10
6.0/3.0/1.5/1.0
116.0 83 4 IF.API 139.8
F14L 7 92.0 139.8 83 4 IF.API
F12 127.0 8 82.0 80 KOKEN taper thread
F10 101.6 7 58.0 55 KOKEN taper thread
F10B 60.0 50 2-7/8 IF .API 101.6 7 F9B 88.9 7.25 50.0 44 2-3/8 IF.API
F7B 73.1 7.55 39.2 35 2-1/8 IF.DCDMA
Bit size inch 2-7/8~26
Hardness soft mid hard harder
Cutter types Chisel Conical
Weight kg 2~589
Outer bit Inner bit
Water well drilling (left : RPD / right : Truck mount type)
Roof type Spike type
Outer bit Inner bit
High speed type Button type Chisel type
Outer bit Inner bit
Outer bit Inner bit
Outer bit Inner bit
Inner rod
Outer rod
Water well drilling
Rotary Percussion Drill Seperate type
RPD-50
Model RPD-50
Drilling dia. mm 80~170
Bit rotation rpm 30
Torque kN-m 6.0
Percussion blow bpm 2,200
Percussion energy J 500
Thrust(push/pull) kN 20/60
Length stroke mm 1,700
Power unit ps/rpm 60/2,500
mm
Weight (total) kg 2,300
Drilling tools
A drilling well is a facility in which a hole is dug to collect the ground water
by drilling the ground. If dug to the water conduit, the abundant ground
water can be utilized half-permanently.
Dig a hole in the well ground with a boring machine and insert casing pipes
into the ground. Since it is less likely to be affected the above-ground
environment, a well with high precision can be expected to be made. With
a technology to drill a drilling well, it is possible to keep drilling further
down to the deep water conduit, which makes it possible to drill to the
depth ranging from a shallow 10m to deep 100m.
Geological conditions
Loam, Sand, Gravel, Silt, Hard pan, Tuff, Tuff breccia
Model FSW-7T
Truck mounted type boring machine
MMP-10A250S
Automatic mortar batcher plant
Transportable large capacity automatic batcher plant
Automatic batcher plant VM Series that make it possible to
cement with high accuracy with easy machine operation. This
VM 1800 is one of the high-end machines equipped with larg-
Automatic compact plant MMP series
Application
Retaining wall by multi axis auger, Continuous wall method Large diameter
Automatic compact plant
Koken’s automatic mixer series that integrates necessary functions,
with the components such as mixer, agitator, silo parts all integrated.
Its precise mixing functions which maintain the high-end machine’s
capability make it possible can be used depending on constructions
High measuring accuracy and stable mixing; no contem-
porary mixer can exist without these two factors. Our
automatic batcher plant “Captain Series” have made
KMP(A)-VM1500W-16
KMP(A)-VM300
Model MMP-10A(2) MMP-10A TypeC MMP-10A250S
Capability ㎥/h 3.6 5.0 5.5
Mixer Capacity L 160 160 250
Agitator Capacity L 320 320 700
Tube pump
L/min 100 ― ―
Mpa 1 ― ―
Dia. mm(in) 50(2) ― 50(2)
Dimensions mm
Weight kg 1,750 1,300 1,670
MMP Series is an automatic plant composed of cement hopper, meas-
uring mixer, agitator and tube pump. It has a system of draining while
confirming the residual amount for agitator after mixing with a mixer.
The measuring result can be printed out with
a bu i l t - i n p r i n t e r .
KOKEN Leading products
MMP-10A
MMP-10A-C
these two factors possible with high level dimension and
easy operation. Their capabilities of operating material
mixture procedure, drive mode to washing mode full-
Application
Housing ground improvement, Special injection works, Other various injec-
Application
Retaining wall by multi axis auger, Continuous wall method Large diameter
KMP(A)-VM750
Model KMP(A)-VM1800W-39 KMP(A)-VM1500W-16
Capability ㎥/h 40 24
Mixer Model VM-1800W-LC9 VM-1500W-LC
Capacity L 1,000 1,000
Agitator Model A-2400 A-2400
Capacity L 2,000 2,000
Cement silo Model t/h Option (40t/h) Option(30h/h)
Bentnite silo Capacity t/h 5(Option) 5(Option)
Dimensions L×W×H mm 3,450×2,200×2,450 3,200×2,000×2,450
Weight kg 3,750 3,750
Model KMP(A)-VM750 KMP(A)-VM300
㎥/h 6.5 6.5(Cement milk) Capability
Mixer Model VM-750-LC VM-300-LC
Capacity L 500 200
Agitator Model A-1500 A-400
Capacity L 1000 300
Silo
Model Horizontal Cement silo Horizontal Bentnite silo
Capacity m3 3.2 2
Capability t/h 35 13
Dimensions Mixing unit mm 4,500×2,300×2,500 1,250×1,800×1,700
Weight Mixing unit kg 4,000 870
KMP(A)-VM1800W-39
Grouting and drilling pumps MG series MG-standard series
MG-40 MG-30 MG-25
Duplex cylinder double-acting piston pump
mm 80 100 120 130 140 80 100 120 130 80 100 120 130
L/min 220 350 520 610 720 160 270 390 460 140 230 340 400
Mpa 6.0 3.8 2.5 2.2 1.9 6.0 3.5 2.5 2.1 6.0 3.5 2.5 2.1
mm 120 120 100
Number of stroke spm 100 75 78
mm (in) 100A(4B) 100A(4B) 100A4B)
mm (in) 65A(2 1/2B) 65A(2 1/2B) 65A(2 1/2B)
Dimensions(L×W×H) mm 3,380×900×1,450 3,380×900×1,450 3,580×840×1,520
Weight(excluding power unit) kg 1,410 1,410 1,100
kW-P 30-4 22-4 18.5-4 Power unit
PS 40~50 30~40 25~30
MG-20A MG-10 MG-5A
Duplex cylinder double-acting piston pump Duplex cylinder double-acting piston pump
mm 100 45 52 68 45 52 68
L/min 330~80 50 70 120 28 40 75
Mpa 2.2 7.0 5.0 3.0 6.0 4.0 2.5
mm 75 60 60
Number of stroke spm 145 150 165
mm (in) 65A(2 1/2B) 50A(2B) 38A(1 1/2B)
mm (in) 50A(2B ) 32A(1 1/4B) 32A(1 1/4B)
Dimensions(L×W×H) mm 2,565×695×1,100 2,040×600×980 1,650×470×680
kg 645 280 200
Power unit kW-P 15-4 7.5-4 3.7-4
PS 15~20 10~15 5~7
MG-40 MG-25
MG Series pumps are highly efficient multi-purpose pumps,
MG-variable discharge type series
MG-20A
Note : Discharge shows a volumetric efficiency of 100%.
KOKEN Leading products
manufactured with thorough consideration of working site
MG-5A MG-10
Note : Discharge shows a volumetric efficiency of 100%.
Note : Discharge shows a volumetric efficiency of 100%.
MG-40FV MG-30FV MG-20AFV MG-10FV
Duplex cylinder double-acting piston pump
mm 80 100 120 130 140 80 100 120 130 100 45 52 68
L/min 220~75 350~120 520~170 610~200 720~240 160~50 270~90 390~130 460~150 330~80 50~12 70~17 120~30
Mpa 6.0 3.8 2.5 2.2 1.9 6.0 3.5 2.5 2.1 2.2 7.0 5.0 3.0
mm 120 120 75 60
Number of stroke spm 100~30 75~25 145~35 150~37
mm (in) 100(4) 100(4) 65(2 1/2) 50(2)
mm (in) 65(2 1/2) 65(2 1/2) 50 (2) 32(1 1/4)
Dimensions(L×W×H) mm 3,630×890×1,535 3,630×890×1,535 2,565×695×1,100 2,100×580×980
Weight(excluding power unit) kg 1,600 1,500 680 400
Power unit kW-P 30-4 22-4 15-4 7.5-4
MG-20AFV MG-40AFV MG-10FV
Model PG-150NEW-H PG-150NEW-L PG-120NEW-H PG-120NEW-L
Type Super high pressure triplex plunger
Stroke length mm 75 75
Number of stroke spm 215~100 190~85 200~85
Plunger diameter mm 60 80 60 80
Discharge capacity L/min 135~65 240~110 120~70 220~95
Working pressure Mpa 43 20 40 20
Inlet dia. mm 50(2in) 80(3in) 50(2in) 75(3in)
Outlet dia. mm 25(1in) 50(2in) 25(1in) 38(1-1/2in)
Power unit kW-P 110-6 (400V/50/60Hz) 90-6 (400V/50/60Hz)
Type Moter(inverter control)
Dimensions (L×W×H) mm 2,930×1,600×1,700 2,930×1,600×1,700 2,960×1,600×1,700
Weight kg 4,200 4,000
Various pumps depending on construction method The PG series pump is a high quality super high pressure pump
having maximum pressure capability of 630 kg/cm2 The PG series
PG-NEW series
Koken’s plunger pump PG-NEW Series are used for solidifying
the ground with high-pressure spray.
MG-3Ren series
Its smooth feeding quality with less pulsation and triple plunger system
makes it possible to high-pressure grout without damaging soil or rock. It is
structured for various grouting constructions with easy
operation and maintenance.
Double chemical grouting pump with long-life ceramic plunger adopted and its
pumping rooms featured with anti-acid and anti-alkaloid. Its elaborate built-up
makes it possible to change the standard consumable parts in 30 minutes.
Compact chemical grouting pump
PG-120NEW
Applications
Jet grouting, high-pressure grouting, water-powered drilling, water-
MG-3Ren50
KGP-3
Applications
Jet grouting, high-pressure grouting, water-powered drilling, water
Model MG-3Ren50 MG-3Ren30 MG-3Ren10H MG-3Ren10L
Type Triplex plunger pump
Stroke length mm 85 100 60 60
Number of stroke spm 195~65 95~32 *190~64 370~80 370~125
Plunger diameter mm 125 100 50 65
Discharge capacity L/min 610~200 220~73 *440~150 130~30 220~75
Working pressure Mpa 3.5 5.0 *2.5 4.5 1.5
Inlet dia. mm (in) 125(5) 80A(3B) 50(2) 75(3)
Outlet dia. mm (in) 80A(3B) 50(2) 32(1-1/4) 50(2)
Power unit kW-P 45-4 22-4 7.5-6 7.5-4
Type Variable speed motor Variable speed motor (Inverter control)
Dimensions (L×W×H) mm 2,650×1,090×2,220 2,115×1300×1,050 1,775×735×930 1,745×735×1,155
Weight kg 2,200 1,700 600 570
Applications
Jet grouting, high-pressure grouting, water-powered drilling, water-
PG-150NEW
Model KGP-3
Stroke length mm 45
Number of stroke spm 30~150
Plunger diameter mm 40
Discharge capacity L/min (3~15)x2
Working pressure Mpa 3.5(Max5.0)
Inlet dia. mm(in) 19(3/4)
Outlet dia. mm(in) 12(1/2)
kW-P 3.7-4 Geared motor (i=1/20) Power unit
Type Variable speed motor
Dimensions (L×W×H) mm 940×650×755
Weight kg Approx.330
Remarks Discarge capacity are adjusted for inverter control.
KOKEN Leading products
MG-3Ren50 MG-3Ren30
uses a highly efficient triplex plunger pump which has completely
solved conventional problems such as bad influence of injecting
pulse especially problematic under high pressure. Furthermore, it
* When changing pully Note : Discharge shows a volumetric efficiency of 100%.
High Speed Mortar Grouting Mixer HM-250 , HM-500S Model HM-500S HM-250
Tank cage L 500×2tanks 250
Mixing capacity L 400×2tanks 200
Mixing revolution rpm 450 600
Outlet dia. mm(in) 100 (4) 80(3)
mm 1,900×1,405×1,725 1,365×910×1,115
Weight kg ― 320
Power unit kW-P 11—6 5.5-4(7.5~9PS)
2-Stage Grout Mixer LAM-250 ・ LAM-140 Model LAM-250 LAM-140
Tank cage L 250 140
250 140
Mixing capacity L 200 100
200 100
Mixing revolution rpm 154(50Hz)/184(60Hz) 70
Outlet dia. mm(in) 50 (2) 50 (2)
mm
Weight kg 360 190
kW-P Motor 2.2-4 Motor 1.5-4 Power unit
PS Engine 3.5 Engine 2.5~3.5
*Note : Instead of standard slide valve, for dam grouting works is also available.
HM-1200S
LAM-250
HM-250
Grouting mixers and Agitators KOKEN grouting mixers actively agitate mixture and cause a
convection in the tank so that materials will be uniformly com-
Large capacity grouting mixers
Applications
Mortar mixing, Cement milk mixing.
Large Capacity Grouting Mixers PM-1200, PM-900 Model PM-900
Tank cage L 900
Mixing capacity L 700~800
Mixing revolution rpm 210/250
Outlet dia. mm(in) 100(4)
mm
Weight kg 600
Power unit kW-P Motor 7.5—4
*Note : PM-90W, PM-1200W, PM-200W with 2-axis is available for mixing mortar and cement milk.
*Note : HM-500S with 1 motor and 1 tank is also available.
KOKEN Leading products
bined. They are highly efficient mixers capable of producing
high quality mortar and cement milk of high fluidity, uniformity
Large Capacity High Speed Mortar Grouting Mixer
Model HM-1200S HM-900S
Tank cage L 1200×2tanks 900
Mixing capacity L 900×2tanks 600
Mixing revolution rpm 350 450
Outlet dia. mm(in) 100 (4) 100(4)
mm 2,200×2,150×1,625 1,650×1,130×1,585
Weight Kg 1,100 435
Power unit kW-P 7.5—4×2 7.5-6
HM-500S
HM-900S
Global network Domestic bases
■Chinese agent
北京阜泓兴业贸易有限公司
(Beijing FHXY Trading Co., Ltd.)
#10004, RoomB1601, Tianyuangang Center Bldg. No.2
Dongsanhuan North Road, Chaoyang,
Beijing, China
TEL : +86-(0)10-6477-5503
FAX : +86-(0)10-6477-5499
■Myanmar agent
HTUN NAY WUN THITSAR CO., LTD.
Block No.246, Q-1, Corner of min gyi mahar khaung St. and U
aung thura St. Hlaing thar tar industry(2), Yangon, Myanma
TEL : +95-9-428-222-333
■Head office:
1F Mejiro Nakano Bldg.,2-17-22, Takada, Toshima-ku
Tokyo, Japan #171-8572
TEL : +81-(0)3-6907-7515 FAX : +81-(0)3-6907-7525
URL : http://www.koken-boring.co.jp/
E-mail : [email protected]
■Branches in Japan
Sapporo,Sendai,Niigata,Kanazawa,Tokyo,Nagano,
Osaka,Nagoya,Takamatsu,Yamaguchi,Fukuoka,
Kumamoto
■Factories
Atsugi Factory
3012-2, Uenohara, Kamiechi, Atsugi-shi, Kanagawa
#243-0801
TEL : +81-(0)46-285-1331 FAX : +81-(0)46-285-1368
Suwa Factory:
10801-3, Shimoharayama, Hara-mura, Suwa-gun,Nagano
#391-0100
TEL : +81-(0)266-79-6011 FAX : +81-(0)266-79-6413
■Other facilities KOKEN earth science musum
4668, Oazakitaono, Shiojiri-shi, Nagano, 399-0651,Japan
TEL : +81-(0)263-51-8111 FAX : +81-(0)263-51-8113
T.O 20180305