Free spinning nut
doesn’t require
prevailing torque
DOUBLE NUT
No need to hold
the bottom nut
HARDLOCK NUT
with a wrench
DOUBLE NUT
No need to hold
the bottom nut
HARDLOCK NUT
with a wrench
Doesn’t require any
special tooling and
fits the bolts you
have now.
Doesn’t require any
special tooling and
fits the bolts you
have now.
Bolt threads after several times tightening
Can be re-used
even after removal
No problem
without any loss in The Concave Nut after several times tightening
self-locking.
Burr occurred but no significant damage was found.
Bolt threads after several times tightening
Can be re-used
even after removal
No problem
without any loss in The Concave Nut after several times tightening
self-locking.
Burr occurred but no significant damage was found.
Locking is still
enabled even with
no tension on bolt.
Locking is still
enabled even with
no tension on bolt.
HARDLOCK Nut
locks by increasing
friction to the Bolt.
Convex Nut Concave Nut
Left Side Right Side
HARDLOCK Nut
locks by increasing
friction to the Bolt.
Convex Nut Concave Nut
Left Side Right Side
HARDLOCK Nut
always comes in pairs
HARDLOCK Nut
always comes in pairs
RIM Type to prevent
faulty installations
RIM Type to prevent
faulty installations
You can fasten
both nuts to the
same torque.
Depends on your clamp force setting
You can fasten
both nuts to the
same torque.
Depends on your clamp force setting
a
HARDLOCK Nut
Convex Nut is
where the magic Off centered
starts. Cut Section
(Eccentricity)
a
HARDLOCK Nut
Convex Nut is
where the magic Off centered
starts. Cut Section
(Eccentricity)
HARDLOCK Nut is of
less height than 2
regular nuts.
HARDLOCK Nut is of
less height than 2
regular nuts.
Vibration Screens
Exciter
Exciter Drive Mechanism
Exciter Screen Tie Rods
Butyl – Spring Bolt
Motovibrator
Vibration Screens
Exciter
Exciter Drive Mechanism
Exciter Screen Tie Rods
Butyl – Spring Bolt
Motovibrator
Flywheel fastening for VIBRATING SCREEN
(Mining company in Brazil)
Vibrating screens are used in mining industry to separate feeds containing solids and
crushed rocks/ores by force of vibration generated from an exciter, consequently always
being exposed to severe vibration.
Reduction of yearly maintenance cost (per 1 machine)
M24 x 3.0 C8 Maintenance Cost
48 pcs /
machine (a) (b) (c) (d)=(a)x(b)x(c) (e) (f) = (d)x(e)
Initial Cost
(Rough estimate) Maintenance Maintenance Man-Hour Labor Cost Maintenance
Engineers hours per year per year (/hour) Cost per year
US$ 57.6 5 4 12
Ordinary Nut US$1.2 x 48pcs (Engineers) (hours) (times) 240 (MHRS) AUD $ 50 AUD $ 12,000
1
1
5
HARDLOCK Nut US$ 240 (Engineers) (hour) (time) 5 (MHRS) AUD $ 50 AUD $ 250
US$5 x 48 pcs
Cost - AUD $ 11,750
Difference +US$ 182.4
Maintenance cost reduced by up
Assuming 100 machines. to 98% .
Maintenance for 3 ~4 Machines per day. → 14 hours per day!
Reduce required maintenance from once a month to once a year!
For 100 machines, reduction of 1.2 Million AUD dollars.
( And that’s not taking into account the reduction in down time.)
Flywheel fastening for VIBRATING SCREEN
(Mining company in Brazil)
Vibrating screens are used in mining industry to separate feeds containing solids and
crushed rocks/ores by force of vibration generated from an exciter, consequently always
being exposed to severe vibration.
Reduction of yearly maintenance cost (per 1 machine)
M24 x 3.0 C8 Maintenance Cost
48 pcs /
machine (a) (b) (c) (d)=(a)x(b)x(c) (e) (f) = (d)x(e)
Initial Cost
(Rough estimate) Maintenance Maintenance Man-Hour Labor Cost Maintenance
Engineers hours per year per year (/hour) Cost per year
US$ 57.6 5 4 12
Ordinary Nut US$1.2 x 48pcs (Engineers) (hours) (times) 240 (MHRS) AUD $ 50 AUD $ 12,000
1
1
5
HARDLOCK Nut US$ 240 (Engineers) (hour) (time) 5 (MHRS) AUD $ 50 AUD $ 250
US$5 x 48 pcs
Cost - AUD $ 11,750
Difference +US$ 182.4
Maintenance cost reduced by up
Assuming 100 machines. to 98% .
Maintenance for 3 ~4 Machines per day. → 14 hours per day!
Reduce required maintenance from once a month to once a year!
For 100 machines, reduction of 1.2 Million AUD dollars.
( And that’s not taking into account the reduction in down time.)
Grinding Mills
Liner Bolts
Kurimoto Ltd.
KINKI INDUSTRIAL CO., LTD.
TAIHEIYO CEMENT CORPORATION
OSAKA CEMENT
SUMITOMO CEMENT
NIPPON STEEL CEMENT
DC CO.,LTD
IHI Corporation
Mitsubishi Material
Grinding Mills
Liner Bolts
Kurimoto Ltd.
KINKI INDUSTRIAL CO., LTD.
TAIHEIYO CEMENT CORPORATION
OSAKA CEMENT
SUMITOMO CEMENT
NIPPON STEEL CEMENT
DC CO.,LTD
IHI Corporation
Mitsubishi Material
ArcelorMittal Crusher – Brazil Mine
ArcelorMittal Crusher – Brazil Mine
Vale – Itabira Mine
Trucks
Vale – Itabira Mine
Trucks
Vale – Ferroport
Wagon Rotator
Vale – Ferroport
Wagon Rotator
Vale – Ferroport
Reclaimers
Vale – Ferroport
Reclaimers
Vale Carajas Kubota Crusher KE-100 Takuma Crusher HC-G-1315
Exciter joints joining to Crusher Used in Feeder Parts Primary Gyratory Crusher
Recycle Center
Vale Carajas Kubota Crusher KE-100 Takuma Crusher HC-G-1315
Exciter joints joining to Crusher Used in Feeder Parts Primary Gyratory Crusher
Recycle Center
Anchor Drill
Used to drill holes in the ground to prevent landsliding.
KOKEN BORING MACHINE CO.,LTD
RPD-75SL-H Series
Piston Nut
HLN-3/4UNC
Anchor Drill
Used to drill holes in the ground to prevent landsliding.
KOKEN BORING MACHINE CO.,LTD
RPD-75SL-H Series
Piston Nut
HLN-3/4UNC
Hopper
Liners
Hopper
Liners
Hopper relay knocker
Company: Exen
Help prevent clogged up pipes and hoppers.
Hopper relay knocker
Company: Exen
Help prevent clogged up pipes and hoppers.
Hopper Vibrators
Prevention of clogging
Hopper Vibrators
Prevention of clogging
Conveyor
Conveyor
Anchor Bolts
ANZEX
Anchor Bolts
ANZEX
Mixing Tank - Mitsubishi Kakoki Kaisha, Ltd.
- Saudi Aramco
Impeller Thrust and Impeller Fixing
Saudi Aramco – Pump SPX Flow