COP 1838 and System Features

 

COP 1838 - Advanced Drilling System 

20 kW controlled impact power 

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Slim piston design

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New hydraulic double dampening system

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Large pressurised and lubricated mating surfaces and side bolts

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Separate front bushing lubrication

High drilling speed, faster drilling of the round 

Long drill steel life

 Longer interval between overhauls Straighter holes

 Higher productivity 

Lower drilling costs 1

 

Rock Drill COP 1838

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Powerful impact mechanism - 20 kW of  controlled power 

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Compared to COP 1238

Up to 80% higher net penetration rates 50 to 60% higher net drilling capacity 2

 

Rock Drill COP 1838

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Long slender piston matched to the drill steel

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The piston shape and diameter is very similar to the shank adapter 

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Favourable shape of the shock wave

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Higher impact energy transmitted through the drill string without overstressing it

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High performance and low drill steel costs 3

 

Rock Drill COP 1838 • •

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Patented double dampener   Effectively absorbs the reflected shock wave energy Keeps the bit pressed against the hole bottom with correct pressure

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Long service life of drill steel and rig components

Effective crushing of rock in the hole

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Rock Drill and Drill String Safeguard System 

Collaring Automatics

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Ramping of pressures

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Rotation Pressure Controlled Feeding

RPCF

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Feed Pressure Controlled Impact

FPCI

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Superb anti-jamming function

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Double dampener 

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Water flow guard Drill bit loosening automatics

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Rock Drill lubrication failsafe kit (optional)

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Rock Drill and Drill String Safeguard System Collaring automatics and ramping of pressure When the automatic collaring is complete the collaring percussion pressure is ramped up to full pressure 

For straighter holes and better drilling accuracy

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Low bending stresses in the drill steel during

collaring

 Straighter holes

Lower drill steel costs

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Rock Drill and Drill String Safeguard System 

Collaring automatics •

Collaring sequence with adjustable settings

-  two seconds for bracing -

two seconds for ramping up of the pressures pressures  

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smooth collaring

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minimum hole deviation 

straight holes

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longer drill steel life

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Rock Drill and Drill String Safeguard System Advanced control functions RPCF & FPCI for superb anti-jamming 

Virtually eliminates jammed drill steel, even in fissured rock

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Maintains tight threads during drilling and reduces pitting damages - increasing drill steel life

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Maximises the penetration rates for actual rock conditions

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Rock Drill and Drill String Safeguard System RPCF

Rotation Pressure Controlled Feeding Feeding  

Continuously monitors and adjusts the feed pressure according to the rotation pressure If the rotation pressure continues to increase beyond a pre-defined upper limit, the rock drill is pulled back and starts a new collaring in the hole

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Rock Drill and Drill String Safeguard System Anti - Jamming automatics

FPCI

Feed Pressure Controlled Impact 

The percussion pressure is only allowed to ramp up full impact level when the feed pressure is above a certain ”contact” level and the drill bit is properly pressed against the rock.

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Reduces the impact pressure when the feed pressure goes under a certain ”contact” level  10

 

Rock Drill and Drill String Safeguard System Double Dampener  

absorbs the reflected shock wave energy before it reaches the rockdrill

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continuously presses the drill bit against the hole bottom and keeps the drill steel joints tightened

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