NLC Company Limited
For Better Drilling Business
LONG TIME ACCUMULATED
TECHNOLOGY FROM JAPAN
TO THE WORLD
NLC Co., LTD.
We, as a drilling equipment maker, have devoted ourselves to the
development of the industry mainly in the areas of deep hole drilling and geological
survey since we established our company in 1983. We got independent from
Longyear Company after a long time experience since 1956, holding great ambition
with the inherited technology.
With the rapid spread of industrialization on a global scale, we have witnessed in many
areas rising problems threatening human existence. Among them, "Greenhouse
Warming" is becoming a major human concern, whose solution requires ultimate
culmination of human wisdom with global human efforts. Our mission is to be part of
those efforts with our long accumulated expertise and experiences in the coring
technologies ecological surveys.
"Where a hole is dug, there is our job.”
We manufacture and market high quality products: Drilling Machines, Drill Rods and
Tools around the world. We have established firm status with Wireline Coring System
mainly in the field of Mining Exploration, Soil Investigation, Water Well Drilling and
Grouting.
AFRICA
OCEANIA
SOUTH
South Africa
Australia
EAST ASIA
Eritrea
New Zealand
Philippines
Ethiopia
Papua
Singapore
Mali
Guinea
Niger
New
Vietnam
Myanmar
EAST/CENTRAL
CENTRAL/
ASIA
SOUTH
China
AMERICA
Hong Kong
Nicaragua
Mongolia
Chile
Korea
Brazil
Kyrgyz
Uzbekistan
Our longtime accumulated expertise with advanced technology is developed at
our Mito Factory by capable engineers, incorporating customer needs brought from the head office in
Tokyo and other branches.
1st Factory
2nd Factory
Highlighted is such academic governmental projects as earth observation well and joint R&D (Research
and Development), supplying drilling tools with a technology of control drilling in the optional direction.
Such technical research and tests are conducted at our technical laboratory.
Our contribution is also to be focused on giving high quality support to
customers in the process of a selection to an introduction of appropriate items. This is what we seek
most to be always helpful to our customers.
Company Profile
Trade Name
NLC Company Limited
Head Office
Happy Mishin Bldg. 6th Floor 9-5, 2-chome,Taito,Taito-ku,Tokyo
110-0016 Japan
Fukuoka Branch
4-1,2-chome, Nakahata, Ohnojo Shi, Fukuoka Prefecture
816-0921 Japan
Osaka Branch
23-9,1-chome,Minamimukonoso,Amagasaki Shi,Hyogo Prefecture
661-0033 Japan
Mito Factory
645-1,Kogyo Danchi, Hitachi Ohmiya Shi, Ibaraki Prefecture
319-2134 Japan
Establishment
History
Nippon Longyear Co., Ltd., which was 100% owned by Longyear
Company at Minneapolis, U.S.A., was established in Japan in 1956.
Since then Nippon Longyear had been manufacturing and
marketing Drilling equipment, Wireline system, civil engineering
equipment under Longyear patents and licence.
As of June 1, 1983, Nippon Longyear transferred all the rights of
manufacturing and marketing on Longyear products to NLC Co.,
Ltd. that was authorized by Longyear Co. NLC commenced
manufacturing and marketing as the successor of Nippon Longyear
effective from June 1, 1983.
Established in Shibuya-ku, Tokyo with the paid-up Capital of
¥50,000,000.
On June 1, 1994, Geo Engineering Co., Ltd. was established, being
independent from Contract division of NLC Co., Ltd with
accumulated Wireline system technology of the company, targeting
the development/introduction of advanced technology.
Geo Engineering is 100% owned by NLC with paid-up Capital of
¥20,000,000.
Main Handling Items
Mining, civil engineering, civil engineering works equipment, tools
and accessories, Drilling Machines, Pumps, Core Tubes, Wire-Line
Corebarrels, Drill Rods, Casings, Packers for Grouting, Metal Bits,
Tri-cone Bits, Diamond Bits, Air-Hammers, Mast, Wire-Line Hoist,
Conical Bits, TC Inserts, TC Knife, TC Rods, Fiberglass Casings &
Tubings
NLC Company Limited NLC Co., Ltd.
Product
Infor mation
Remarks: Each Drilling Capacity is calculated from
hoisting capacity.
All Hydraulically Driven Core Drill
NL-500T/700B
NL-500T
NL-700B
All Hydraulically Driven Core Drill
Features
1. Versatility
Both High speed and low speed rotary works.
PQ Head is available (NL-700B)
2. Function-oriented
Central Control system
Sliding Head, Mast Slide and Rod Connection
Support are equipped with NL-700B
3. High Productivity
4. Mobility
5. Option : Skid Base , Operation Seat, Outrigger
NL-500T
Drilling Capacity
m
NL-700B
HQ-WL-300m/NQ-WL -500m
PQ-WL-350m/HQ-WL-500m/
NQ-WL -700m
Spindle I.D
mm
95
95/120(PQ)
Spindle
rpm
70-210, 150-300, 250-500, 470-1,200
70-210, 150-300, 250-500, 470,1,200
Torque
N・m
5390, 3820, 2310, 954
6140, 4350, 2633, 1080
Thrust
KN
50.0
50.0
Pull
KN
43.6
43,6
m
1.85
RPM
Feed Stroke
Hyd. Pump
Max. Output
Dimensions
Weight
L/min-Mpa
PS
mm(LxWxH)
kg
1.85
1st:175-20.0, 2nd:58-17.5, 3nd:58-14.0
150(112kw)/2300rpm
17(65kw)/2200 rpm
5350 x 2200 x 2400
4500 x 2450 x 2050
5000
3800
NL-G80
Shallow coring and Geotechnical Drill
with Hydraulic Top Head Drive
Features
1) Portability
2) Versatility
・Coring
・SPT Application
3) Cost Efficiency
Drill Rod
Drilling Capacity
N size
m
80 (max.)
Spindle rpm
rpm
50 ～ 800
｛0 - 78｝
Torque
N・m
125 (12.8 kgf・m)
｛1,200 (124) ｝
Thrust Capacity
Pull Capacity
Hyd. Pump
N
29,700
N
43,600
L/min-Mpa
Max. Output
KW/PS
Dimensions
mm(LxWxH)
Weight
kg
1st:175-25.0,2nd:120-17.5
45(at 1200 rpm) / (at 1200 rpm)-14.0Mpa
11/17
2100ｘ1100ｘ2700（virtical）
929
Mechanical Spindle Type Drill
NL-55
Prestigious drill designed to have
greater depth capacity
with larger
diameter.
Features
1) Versatility
High speed, high torque and 145mm
spindle I.D. realizes several types of
drilling operations.
2) Efficiency
High fuel efficiency
3) Robustness
4) Easy maintenance
Drill Rod
Drilling Capacity
N size
m
80
(max.)
Spindle rpm
rpm
50 ～ 800
｛0 - 78｝
Torque
N・m
125
｛1,200 (124) ｝
Thrust Capacity
Pull Capacity
Hyd. Pump
N
29,700
N
43,600
L/min-Mpa
Max. Output
KW/PS
Dimensions
mm(LxWxH)
Weight
(12.8 kgf・m)
kg
45(at 1200 rpm) / (at 1200 rpm)-14.0Mpa
11/17
2100ｘ1100ｘ2700（virtical）
929
L-38-98
High Speed Diamond Core Drill
L-38 is well known model in the
world.
Features
1) 8 Bit Speed
2) High Speed
Maximum: 1,105 rpm
3) Built-in Mast/Wireline
Hoist are optional.
Drilling Capacity
Spindle I.D
m
HQ-WL-375m/NQ-WL -565m
mm
98mm(94mm : when Hyd.Chuck used)
Spindle RPM
rpm
Low:33, 69, 126, 213
High:140, 288, 526, 889
Torque(11KW motor)
N・m
Low:3180, 1520, 830, 490
High:750, 360, 200, 118
Thrust
KN
58.4
Pull
KN
85.3
Feed Stroke
mm
600
Oil Pump
Max. Output
Dimensions
Weight
L/min-Mpa
KW/PS
mm(LxWxH)
kg
45-6.86
11-4P/14.9 / 18.5-4P/25.1 1450/1750rpm
2250 x 1160 x 1750
1880 Less Power
Mechanical Spindle Type Drill
L-38-150 “Megalo”
Spindle Type of Drill for Larger Diameter
Has enjoyed high prestige in
Japanese market over long years.
Features
4) Effective and Safe handlings
5) Large diameter with 145 mm I.D.
6) Versatility
Ordinary drilling, Water-well drilling,
Anchor drilling can do satisfactory.
Drilling Capacity
m
HQ-WL-375m/NQ-WL -565m
Spindle I.D
mm
145mm(142mm when Hyd.Chuck used)
Spindle
rpm
Low:28, 58, 106,179
High:118, 241, 442, 746
N・m
Low:6310, 3040, 1660, 980
High:1500, 730, 400, 230
RPM
Torque(18.5KW motor)
Thrust
KN
58.4
Pull
KN
85.3
Feed Stroke
mm
600
Oil Pump
L/min-Mpa
Max. Output
Dimensions
KW/PS
mm(LxWxH)
Weight
kg
45-6.86
11-4P/14.9 / 18.5-4P/25.1
1450/1750rpm
2250 x 1160 x 1900
1910
Less Power
NL-26
Small-sized and portable drill
equipped with Hydraulic Chuck.
F
Feeaattuurreess
Certified as a rescue
1) Light weight
tool at coal mine by
Some parts are made
Chinese government
from aluminum.
2) 6-steps gearing
3) No oil leakage
4) Maximum disassembling
weight is under 60 kgs
(except power unit)
5) Safety Guards
Drilling Capacity
m
NQ-WL-100～120
, BQ-WL-120～150 ,
AQ-WL-150～200m
Spindle I.D
mm
47mm
Spindle RPM
rpm
Low:72, 110, 144
High:220,292,448
Torque(5.5KW motor)
N・m
Low:730, 480, 360
High:240, 180, 120
Thrust
KN
30.87
Pull
KN
38.48
Feed Stroke
mm
515
Oil Pump
Max. Output
Dimensions
Weight
L/min-Mpa
20L/min
KW/PS
5.5-4P/8
mm(LxWxH)
kg
1360 x 750 x 1405
450 Less Power
Q SERIES CORE BARRELS
Latch Retracting Case
Spring
Pin
Latch
Spear Head
Latch Spring
Latch
Support
Spring Pin
F
Feeaattuurreess
1) The maximum core diameter and
the highest rate of core recovery
Spring Pin
Q Series can output the 19 to 32% larger core
than conventional core barrels, which is
Latch Body
Spindle
Lock Nut
matchless highest rate.
Valve
2) Increased efficiency in
working process
Core is produced quickly by retrieving the core-
Shut Off Valve
Adjusting
Washer
Thrust Ball Bearing
Spindle Bearing
laded inner tube through a drill string.
The rods remain in the hole until the bit needs
Compression
to be replaced.
Spring
Drillers can spend more time coring and less time
Self Locking Nut
pulling and lowering the drill string.
3) Long Bit life
Inner Tube Cap
Stainless Steel Ball
Grease
Breakdown and reaming of the wall as the
descent and ascent of drill rods can be eliminated.
Hydraulic
Check Valve Body
Fitting
Q SERIES WIRELINE RODS
Thrust Ball Bearing
Manufactured under strict quality control and are processed with high technology.
Here we supply orthodox “Q” series Wireline Rods.
Q Series Rod
F
Feeaattuurreess
1) Fast stabbing, quick make-up and break-up
2) The heat-threaded rod surface of box thread
3) Seal joint formed by full wedge fit between mating
threads
4) Built-in high torque capacity
5) Tapered threads form rigid joints
6) Straightness Tolerance
“HD” Series Rod
“Epoch-making Wireline Heavy Duty Rod for Greater Depth”
F
Feeaattuurreess
1) “2 steps -Inside Upset”. This
A
B
C
D
E
HQ-HD
83.2
80.8
73.4
88.9
77.4
NQ-HD
63.8
54.9
54.9
69.9
57.9
realizes seamless rod.
2) The “2 steps– Inside Upset”
enables
to
lighten
the
rod
weight.
3) Transformed Buttress Threads
are focused on strength.
NT-40.5 Rod
F
Feeaattuurreess
1) Inside-upset
structure
eliminates couplings.
2) Taper thread provides
easy make-up/break-up.
3) High sealing capability
DRILL RODS
Thrust Ball Bearing
W-SERIES CASING
Thrust Ball Bearing
We manufacture any size of Casings currently
used in drilling field meeting to the DCDMA Standard.
F
Feeaattuurreess
1)
2)
3)
4)
Reduces wear
Easier joint make-up and break-out
Extended service life
Interchangeable with DCDMA
Casing Bushing
Casing Metal Shoe
Drilling Tools for diamond core drilling based on
Wireline System are manufactured at our
factory through strict quality control.
We have enough experience to meet customer
needs, supplying a quality package of the tools:
Wireline Hoist, Hoisting Plugs, Holding Tools,
Fishing Tools, etc.
WATER SWIVEL
Thrust Ball Bearing
This is an important tool to
equip at the top of drill rod
string to send water or drilling
mud through the rod string.
Several types are available for
your selection dependent on
drilling situation of pressure
and Volume of water or drilling
mud to send.
Subs are available to adapt to
all current rods.
HOISTING PLUG
Hoisting capacity of S and L type are 2 tons and 5
Thrust Ball Bearing
tons respectively.
LD type of 15 tons capacity is recommended for
greater depth and large diameter hole drilling.
HOLDING TOOLS
Thrust Ball Bearing
ROD HOLDER
Designed to securely hold the rod and casing of larger OD to use
for water-well and civil engineering work drillings.
Jaws included in the clamp body can be changed to meet the
sizes of rods or casing to handle.
ROD & CASING CLAMP with JAWS
This is to hold the rod & casing. By changing the jaws to include
inside the clamp, driller can handle various sizes of tubings.
CASING CLAMP
This is to hold the rod & casing string in the hole at the opening
of hole on ground surface.
ROD/CASING CUTTER
Used for cutting rod/casing at any point in a drill hole
when the entire string cannot be drawn out. The cutter
expands when water pressure is applied.
WIRELINE TOOLS
WIRELINE HOIST
Thrust Ball Bearing
Designed to retrieve and lower
wireline core barrel inner tube
assembly.
This assures reliable handling
of inner tube
Built-in on the drill type or
separate unit type available.
Skid mounted type
Model
Built-in type
WLH-S
WLH-M
WLH-L
L-38 Drill
NL-55 Drill
Drum Dia.
114
114
114
184
184 mm
Drum Length
244
244
381
432
432 mm
Hoisting Cap.(5mm wire rope)
350
800
1300
800
1300 M
57
57
57
70
70 m/min
3.5-4.0
5.0
9.5
-
-
Line Speed
Power Req’d (PS)
TIGHT GRIP WRENCH
This is to use for making and breaking drill rods,
casings and inner and outer tubes of double
tube corebarrel.
This wrench provides an uniform gripping of
tubing without distortion on OD of tubing.
Two wrenches are usually employed as one pair.
FISHING TOOLS
ROD RECOVERING TAPS
Thrust Ball Bearing
CASING RECOVERING TAPS
BELL TAPS
BITS
DIAMOND BIT
Thrust Ball Bearing
We offer suitable set diamond bits, impregnated bits, reamer shells,
casing shoes, casing bits, non-core bits, etc. in all sizes currently
used. We also offer custom-designed articles of any sizes.
ROCK BITS
We offer bits suitable for Exploration, Mining, Construction, Water-well
drillings in wide range of sizes to meet your drilling needs.
PERFORATOR
The perforator effectively perforates the wall of installed
steel and PVC well casing when the volume of pumped water
Thrust Ball Bearing
has decreased in water-well or hot
spring.
This tool screws to the end of drill pipe and will puncture
rows of approximately 1"x 1/10" slots in steel casing having a
thick wall up to .450". The PVC blade cuts
approximately .400"x .050" slots in plastic pipe and are easily
interchangeable with the steel cutter blade.
T.T. PACKER
T.T. Packers use steel-reinforced glands for durability
and resistance to cutting and abrasion. Steel-reinforced natural
Thrust Ball Bearing
rubber assures positive sealing in rough, irregular boreholes and
excellent memory in returning to at-rest diameters.
Size:4” to 16”
NLC Company Limited
Head Office
Happy Sewing Bldg. 6th Floor 9-5,2-chome,Taito,Taito-ku,Tokyo
110-0016 Japan
Tel:81-3-3837-3381
Fax:81-3-3837-3383
URL: http://www.nlc-japan.com/english.html.new
Fukuoka Branch
4-1,2-chome,Nakahata,Ohnojo Shi,Fukuoka Prefecture Japan
Osaka Branch
23-9,1-chome,Minamimukonoso,Amagasaki Shi,Hyogo Prefecture
Japan
Mito Factory
645-1,Kogyo Danchi,Hitachi Ohmiya Shi,Ibaraki Prefecture Japan