Atlas Copco Hydraulic Rock Drills

COP 2100/2500-Series

Rock drills for superior productivityCOP 2160/2160EX, COP 2560/2560EXCOP 2150-CR/2550-CR, COP 2150-CRL/2550-CRL21 or 25 kW hydraulic rock drills for the hole range 89-127 mm

21 or 25 kW percussion power designed for heavy, continuous production

21 or 25 kW percussion power designed for heavy, continuous production

Robust dimensionsCOP 2160 and COP 2560 are among the most powerful rock drills on the market. The main differences from the earlier COP 2150/2550 series are a 10 mm bigger adapter, increased bearing surface, larger driver and an impact piston with a greater diameter at the striking end. The reason for the changes is to give even better impact tolerance for really heavy production work.

But theres another important point: COP 2560 can be used not only with the T51 drill steel but also with the ThunderRod T60 for hole diameters of 102 mm and above. This drill steel has a 40 percent larger cross sectional area than the T51 and is therefore considerably more rigid. The resulting reduced hole deviation allows less dense hole planning and gives rise to significant savings in drilling time.

Both models can be delivered with inbuilt extractors, identified by the suffix EX.

As well as the above there is the COP 2150/2550 CR series, which consists of COPROD versions with separately transmitted impact energy and rotational torque for straighter holes in all types of rock conditions.

A full 21 or 25 kW thanks to Atlas Copco's renowned dual dampingThe efficient dual damping system makes it possible to use even higher impact power without compromising the service life of the drill steel. Dual damping has two functions: to prevent the harmful shock waves returned by the rock from reflecting back and forth through the drill steel; and to push the drill bit up against the rock so that the extension rods are re-tightened after every blow.

The central part of the system is the damping piston which, like the shank adapter, is in floating suspension. The reflex energy generated by each blow is collected in the form of increased oil pressure in the chamber behind the piston. Excess pressure is released via a vent into the hydraulic system and converted at the same time into heat. The pressure in the damping chamber also presses the drill bit back up tight against the rock. The whole cycle occurs between successive blows. No drill string feed is as fast as that!

Rock drills without the double damping system cannot carry out satisfactory retightening of the extension rods. This means increased wear, which generates heat. The problem can therefore easily be detected with an ordinary thermometer.

More available power, less and easier maintenance

Impact piston-adapted shank adapter

Damping chamber Drill steel-adapted impact pistonStainless steel flushing head

Continuous hydraulic oil lubrication of gear housing

Reversible variable-speed rotation motor with a drill steel

torque of 1810 Nm

Driver Stroke length selectorDamping piston

More available power, less and easier maintenance

Separate lubrication of the shank adapter and front bushing (fig 1) ensures adequate lubrication/cooling during heavy use and prevents contaminants from penetrating the drill at the front.

Pressurized mating surfaces (with lubricating air, fig 2) prevent the ingress of dirt and damp into the drill. This facility can be disconnected if you so wish.

3-stage protectionThe COP 2160/2160EX and COP 2560/2560EX have three easily replac-eable diaphragm accumulators. The inlet accumulator smoothes out pressure variations from the percussion mechanism to ensure continuous high efficiency. The damping accumulator is connected to the damping chamber and effectively smoothes out the pressure variations caused by the reflex shock wave. The return accumulator smoothes out pressure variations in the return oil and halts any harmful hose vibrations.

Together the three accumulators contribute to the smooth running of the equipment, thus protecting the rock drill, the feed, the boom and the rig's hydraulic system. The resultant high operational availability leads to lower maintenance costs and higher production.

Smart and reliable constructionThe COP 2160/2160EX and COP 2560/2560EX are designed and con-structed for maximum production with minimum maintenance:

In a matter of minutes you can select the one of two (COP 2560/2560EX) or three (COP 2160/2160EX) stroke positions that provides the best piston frequency and penetration for the rock in question.

The exceptionally strong rotation motor develops a drill steel torque of 1810 Nm, which minimizes the risk of jamming. The rock drills can also be supplied with a powerful hydraulic extractor to save time and drill steel.

The flushing chamber is sealed very effectively against the stainless-steel flushing head and withstands air pressures of up to 12 bars. There is thus no problem keeping the bottom of the hole clean.

Hydraulic-oil lubrication of the gear mechanism now replaces manual lubri-cation. As well as reducing maintenance, this also improves cooling, which enables higher power utilization and helps to decrease wear under prolonged loading.

Fig 2. Mating surfaces and side rods are pressurized with lubricating air to prevent impurities from penetrating the drill and causing corrosion.

Fig.1. Separate compressed-air or hydraulic-oil lubrication of specially designed parts increases service life and operational availability.

Fig 3. COP 2160EX and 2560EX. The hydraulic extractor is incorporated in front of the flushing head.

Compressive strength, limestone = 160 MPaCompressive strength, granite = 200 MPaHole length = 30 mDrill bit = (semi) ballistic button bit

Proposed drill strings

Guide tube T51 SPEEDROD Adapter

T51 SPEEDROD T51 SPEEDROD Adapter

Guide tube T51 SPEEDROD Adapter

T51 SPEEDROD T51 SPEEDROD Adapter

Bench drilling with COP 2160EX and COP 2560EX

Bench drilling with COP 2160 and COP 2560

89 102 115 127 Holediameter,mm

m/min

2.0

1.5

1.0

0.5

Penetration rate

Softrock

Hardrock

Assumptions:

COP 2560 COP 2160

T60 THUNDERROD* T60 THUNDERROD* Adapter*

T60 THUNDERROD* T60 THUNDERROD* Adapter*

* for use only with COP 2560 or 2560EX

CIAA AB

COP 2150-CR and COP 2550-CR for faster and straighter holes in any rock formation

Impact piston-adapted anvil

Damping chamber Reversible variable-speed rotation motors with a total drill tube torque

of 3960 Nm

COUPLINGTUBE ADAPTER

Drill steel-adapted impact pistonDamping piston

Stainless steel flushing headThreads are only present in

joints that transmit rotation

COP 2150-CR and COP 2550-CR for faster and straighter holes in any rock formation

COPROD section

COPROD 89For hole 105 -127 mmLength 3.66/6.1 mDrill tube 88.9 mmDrill tube thread API 2 3/8-IFImpact rod 45 mm

COPROD head

COPROD 89

Length 870 mmThread T-73

A choice of rock drillsBesides the COP 2150-CR and COP 2550-CR, there is a further variant the CRL. In the CRL, the rock drills have an extended anvil and drill-tube adapter in order to accommodate an extractor.

TED a flushing air-powered extractor designed specially for COPRODThe whole idea behind COPROD is to achieve an even high production rate with the highest possible quality. An extractor contributes to interruption-free and efficient production and at the same time ensures that you are able to retain the drill string.

TED is mounted at the top of the drill string and is activated automatically when the return force exceeds a certain level.

COPROD-section COPROD-head

Drill tubeImpact rod

COPROD the best of both worldsDown-the-hole drilling with drill tubes gives significantly straighter holes in difficult rock than tophammer drilling with drill steel.

Tophammer drilling with drill steel, on the other hand, gives significantly faster penetration and lower diesel consumption.

It is possible of course to use drill tubes with tophammer drilling. But even for larger hole sizes in medium-hard rock, the stress and wear in the tube threads is so great that the drill steel costs cannot be justified.

So in reality there have only been two alternatives: hole straightness or speed. With COPROD, however, you get both.

Obviouswhen you think about itCOPROD combines a threaded drill tube with an impact rod (unthreaded drill steel) such that the drill tube only needs to transmit rotation while the impact rod only transmits impact energy.

The drill tube is responsible for hole straightness and the superior flushing properties compared to a drill steel (less space between drill tube and drill hole gives a higher flushing rate). Moreover, because the impact rod is inside the drill tube, a COPROD section is more rigid than an equivalent regular drill tube.

The impact rod is in floating suspension inside the drill tube. When the sections are joined, the impact rods stand on top of each other. The impact energy is therefore transmitted to the rock without passing through a single thread. As a result, a COPROD section can withstand higher impact energy than an equivalent regular drill steel.

TED

Compressive strength, limestone = 160 MPaCompressive strength, granite = 200 MPaHole length = 30 mDrill bit = (semi) ballistic button bit

105 115 127 Holediameter,mm

m/min

2.0

1.5

1.0

0.5

Penetration rate

Softrock

Hardrock

Assumptions:

COP 2550 COP 2150

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TOTAL ROCK DRILLING TECHNOLOGY

Knowledge that enriches

Make use of DIAROT at no charge

With the help of the computer program Diarot, it is possible to predict with great accuracy the results of using any rock drill in your particular operation. This is really effective and it is something we strongly recommend that you take

advantage of to avoid making a wrong investment. We don't want to sell the wrong equipment to the right customer either, so we make no charge for Diarot runs!

COP 2160/ COP 2560/ COP 2150-CR/ COP 2550-CR/ COP 2160EX COP 2560EX COP 2150-CRL COP 2550-CRLImpact power, max. 21 kW 25 kW 21 kW 25 kW

Hydraulic pressure, max. 210 bar 230 bar 210 bar 230 bar

Impact rate, max. 36 Hz 44 Hz 36 Hz 44 Hz

Lubricating air (at the rock drill), min. 2-3 bar 2-3 bar 2-3 bar 2-3 bar

Flushing air, max. 12 bar 12 bar 12 bar 12 bar

Weight, without adapter 187/249 kg 187/249 kg

Weight, with coupling and tube adapter 242/247 kg 242/247 kg

Length, without adapter 1138/1336 mm 1138/1336 mm

Length, with coupling and tube adapter 1661/2118 mm 1661/2118 mm

Width, without connectors 316 mm 316 mm 316 mm 316 mm

Height above cradle 223/257 mm 223/257 mm 325 mm 325 mm

Height above drill center 88/122 mm 88/122 mm 190 mm 190 mm

Shank adaptersMale adapter thread type T45, length 770 mm for COP 2160, best.nr. 436-17301-05,00

Male adapter thread type T51, length 770 mm for COP 2160/2560, best.nr. 437-17301-05,00

Male adapter thread type T60, length 770 mm for COP 2560, best.nr. 457-17301-05,00

Male adapter thread type T45, length 770 mm for COP 2160EX, best.nr. 436-17201-05,00

Male adapter thread type T51, length 770 mm for COP 2160EX/2560EX, best.nr. 437-17201-05,00

Male adapter thread type T60, length 770 mm for COP 2560EX, best.nr. 457-17201-05,00

Rotation motor(s)Rockdrill Rotationmotor Drillsteelspeed Drillsteeltorque Output Workingpresuretype type rpm max. max. max.

COP 2160/2560 and COP 2160EX/2560EX OMS 315 0-110 rpm 1810 Nm 15 kW 200 bar

COP 2150CR/2550CR and COP 2150CRL/2550CRL 2 x OMS 315 0-100 rpm 3960 Nm 15 kW 200 bar

Possible combinations: application rock drill drill stringHole Rock Thread Extension Guidedimension drill type rod tube (89-102 COP 2160, COP 2160EX T45 SPEEDROD) (On special request only)

89-102 COP 2160/2560, COP 2160EX/2560EX T51 SPEEDROD

89-102 COP 2160/2560, COP 2160EX/2560EX T51 SPEEDROD TDS 76

102-127 COP 2160/2560, COP 2160EX/2560EX T51 SPEEDROD TDS 87

102-127 COP 2560, COP 2560EX T60 THUNDERROD

102-127 COP 2560, COP 2560EX T60 THUNDERROD TDS 87

105-127 COP 2150CR/2550CR, COP 2150CRL/2550CRL COPROD 89

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