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ShangHai Exthin Machinery co.,ltd

City:Shanghai

Province/State:Shanghai

Contact Person:Mr. michael

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Drilling Rig ROC® L825 & ROC® L830

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High drilling capacity and superior hole quality

AtlasCopco's range of surface crawlers continues to raise the bar.the popular multipurpose ROC L8 drill rig has been refined to increase its performance and versatility-with an even higher capacity and greater flexibility than previous models.

You can now drill production holes,improve stripping ratio with double benching and pre-splitting ,and control your dilution with reverse circulation(RC)with a single drill rig.the ROCL8 is ideal for most applications in surface mining and quarrying,such as the drilling of production blast holes,pre-split and buffer blast holes as well as lifters. Its flexibility also makes it well suited for drilling de-watering holes for pit-wall depressurisation.

Its low weight and limited dimensions makes the ROCL8 easy to move from site to site,from bench to bench. The versatility of the ROCL8 gives you unique benefits.

The ROC L8 offers you the following benefits:

n Straight,accurate blast holes for controlled fragmentation

n Improved stripping ratio through double benching and pre-splitting

n Reduction of waste extraction by increasing the spit slope angle

n Controlled dilution with reverse circulation(RC)sampling(Optional module)

n Flexibility beyond conventional mining and quarry rigs

Long life aluminium box profile hydraulic cylinder feed system with exchangeable snap on stainless steel wear protections

A selection of rotary heads for optimum use of 4-6" down-the-hole hammers

Carousel tube handling system with deep hole capacity and free selection of drill tubes.

Full-view ROPS and FOPS cabin,silenced and vibration damped

The flexibility of the ROC L8 feed swing permits inclinations of up to 30 degree forward

Full-length,spring operated canopy doors offers full access to service points.

A smart investment in power and precision

The new ROCL8 operates at up to 30bar pressure and comes with a choice of two different drill tube lengths;with long feed for 6 meter drill tubes or with short feed for 5 meter drill tubes and toe hole drilling capacity.The penetration rate of the new ROC L8 is faster than its predecessors'.Drilling capacity has been increased by higher operating pressure and a unique cylinder feeding system. The new aluminium profile and tube-handling system accommodates drill tubes of up to 140mm(5 1/2") in diameter.

DTH hammers-strikingly efficient

The ROC L8 can be equipped with a range of AtlasCopco down-the hole(DTH)hammers well known for their high performance in terms of speed,reliability and longevity. With higher penetration rates and lower fuel consumption per metre drilled,our DTH hammers make a positive impact on your bottom line.

Flexibility and mobility in focus

The ROC L8 has excellent tramming ability for quick,safe transportation between work site. For a rig its size,the ROC L8 has outstanding terrain manoeuvrability with its ideal weight distribution and low centre of gravity,generous clearance and heavy-duty tracks with 20 degrees of oscillation.

Designed to keep you up and running

Like all our crawlers,the ROCL8 is designed for easy maintenance with ready access to service points. All hoses and cables are marked at each end to coincide with the schematic drawing in spare parts lists for better trouble-shooting. The Optional fast fuel-filling system adds additional efficiency.

Steeper slopes mean better economy

Pre-split DTH drilling using the ROC L8 creates higher and narrower benches. This contributes to steeper pit slopes and less waste rock to be extracted. The advantage is a low waste-to-ore ratio,which means higher productivity and better overall pit economy. The method had been successfully used at a number of mines throughout the world.

Technical specification

Recommended hole range ROC L8²⁵
COP 44, COP 54GE, COP 64 Gold		110-178 mm	4 ⁵/₁₆''-7''
Recommended hole range ROC L8³⁰
COP 44, COP 54GE, COP 64 Gold		110-203 mm	4 ⁵/₁₆''-8''

Hole depth		25-54 m	82-178'
Atlas Copco XRX 10, two stage screw type compressor
ROC L8²⁵
Working pressure, max.		25 bar	363 psi
FAD		405 l/s	858 cfm
ROC L8³⁰
Working pressure, max.		30 bar	435 psi
FAD		470 l/s	995 cfm
Engine
ROC L8²⁵
Caterpillar turbo charged, diesel engine, CAT C13, Tier lll/Stage 3
Rating at 1,800 rpm		328 kW	440 hp
ROC L8³⁰
Caterpillar turbo charged, diesel engine, CAT C15, Tier lll/Stage 3
Rating at 1,800 rpm		402 kW	539 hp
Fuel tank
Capacity	760 /1050 l		201 US gal. /277 US gal
Feed
Long feed (LF)
Feed length, total	11,560 mm		38'
Travel length	7,540 mm		25'
Feed extention	1,150 mm		3'9''
Short feed (SF)
Feed length, total	9,266 mm		30'4''
Travel length	5,400 mm		17'7''
Feed extention	1,900 mm		6'3''
Feed rate max.	0.9 m/s		177 ft/min
Feed force, max.	40 kN		8,992 lbf
Tramming
Tramming speed, max.	3.5 km/h		2.2 mph
Traction force	166 kN		37,310 lbf
Track oscillation	+10^º
Ground clearance	405 mm		16''
Transport dimensions
Weight, excl. options (LF)	22,600 kg		49,800 lb
Weight, excl. options (SF)	22,200 kg		49,950 lb
Width	2,500 mm		8' 2 ¹/_2''
Length (LF)	11,700 mm		38'5''
Length (SF)	10,700 mm		35'1''
Height (LF)	3,500 mm		11'6''
Height (SF)	3,350 mm		11'

A selection of options on ROC L8²⁵& ROC^® L8³⁰

For a more comprehensive option list,please contact your local AtlasCopco customer center.

Lifting aid

The feed-mounted service winch offers lifting capacity when loading drill tubes into the rod handling system for extended hole depth or for lifting components for service.the control is conveniently located at the break out table

Smooth bench floors

Mounted on the rotary head,a laser receiver signals the hole depth to the cab-mounted monitoring system and automatically stops the drill at a pre-set hole depth. The function ensures smooth bench bottoms irrespective of terrain and drill set up.

Accurate sampling

ROC L8 is designed to handle in-pi grade control for accurate geological sampling. A selection of Reverse circulation options is available for samples of varying size and quality. The pictured cone sampler is controlled from the cabin.

Increased safety

With a reverse camera,the rear terrain can be viewed on a cab-mounted monitor for increased safety while reverse tramming. The same monitor may also be connected to the optional DVD for viewing DVD discs.

Noise and vibration levels

ROC L8(25) / ROC L8(30)
A-weighted sound power level in decibel (ref. 1pW) Single value declaration	127
A-weighted sound pressure level at work station in decibel (ref. 20 mPa) Double value declaration	80
Accurancy, KpA, in decibel	3
A-weighted sound pressure level at 1m distance in decibel (ref. 20 mPa) Double value declaration	NA
Accurancy, KpA, in decibel	NA
Weighted whole body vibration level (m/s²) (Double value declaration)	0.3
Inaccuracy (m/s²)	0.2

Coverage area

The Hole World - ROC L-series

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