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Technical Specification 04230-1 2004-06-21

RANGER K7

APPLICATION

Ranger K7 is a hydraulic, self-propelled, selfcontained, crawler based surface drilling rig equipped with a cabin (F.O.P.S. and R.O.P.S.) and rod handling system. It drills vertical, inclined or horizontal holes with a diameter of 51 - 102 mm (2 " ­ 4 ") utilizing 38 or 45 mm (1½" or 1 3/4") extension rods. Ranger K7 is equipped with HLX 5, hydraulic top hammer rock drill. With high rotation torque, sufficient flushing and sophisticated ergonomic drilling control system the rig is well suited in varying rock conditions. The rock drill and articulated boom are mounted on the turnable superstructure giving a drilling coverage of 17.6 m2 The powerpack of Ranger K7 consists of a Komatsu diesel engine (Stage II & Tier II) and a gearbox, which divides the power for hydraulic pumps and flushing air compressor. The powerpack is mounted crosswise at the rear end of the superstructure to keep counterweight on the opposite side of the boom and feed regardless of the drilling direction. Ranger K7 has an ergonomic cabin to increase operator's safety and visibility. The cabin is certified for R.O.P.S. (ISO-3471 Roll-Over protection Structure) and F.O.P.S. (ISO-3449 Falling Object Protection Structure). Windows are laminated for added safety. The noise level in the cabin is less than 80 dB(A). To keep dust at a minimum, the cabin is fitted with efficient filters for incoming fresh air. Adjustable seat, good visibility, efficient lighting and an optimum working temperature are among the many features ensuring a good operating environment. Drilling functions are proportionally controlled by one hydraulic joy-stick. Several routine functions e.g. antijamming are executed automatically. There are fewer levers to make it easy to use. Driving, rear jack and winch control can be done outside the cabin from the optional remote control box. Typical applications for Ranger K7 are road cutting, pipe-line drilling and foundation drilling, as well as production drilling in medium size quarries. Therefore Ranger K7 is most often used by construction contractors and quarries, and also included in the equipment fleet of rental houses as well. 1/4

Technical Specification 04230-1 2004-06-21

RANGER K7

DRILLING DIMENSIONS

30º

90º

1m 1m

TRANSPORT DIMENSIONS

7000

7700

10700

2270

3200

2/4

3600

Technical Specification 04230-1 2004-06-21

RANGER K7

HYDRAULIC SYSTEM

Driving, boom and drilling Cooling and dust collector Filtration rate Cooling capacity Hydraulic oil tank Shank lubrication device Load sensing system Open center 12 micron abs., return 25 micron, pressure up to +50°C ambient 200 l SLU 14-1 HLX 5 38, 45 mm 80-170 bar 65 Hz 17 kW 680 Nm Air / oil mist Air 210 kg

HYDRAULIC ROCK DRILL

Rock drill type Drill rod diameters Operating pressure Percussion rate Percussion output power Maximum rotation torque Shank lubrication Flushing Weight

CONTROL SYSTEM CHAIN FEED AND ROD HANDLER

Chain feed type Length of feed Rock drill travel Max. length of starter rod Feed/pull out force Travelling hose reel Front jaws Rod handler type Storage capacity with 45 mm MF-rods Steel lengths Max. hole depth with 12 ft 45 mm rods Feed extension travel Feed swing Feed tilt Weight without steels CF 145H 7 700 mm 4 915 mm 4 880 mm (16') 20 kN Standard Centralizing Pito 12H RH 714 6+1 3 050, 3 660 (10', 12') 25 m 1350 mm -56°/+52° (-20°/+94°) 125° 1 400 kg Driving control Boom control Drilling Rod handler Collaring control Percussion control Antijamming system Voltage Pilot operated, hydraulic Direct operated, hydraulic Pilot controlled (el/hydr.) Electric remote Stepless Controlled by feed pressure (THC 700) Hydraulic 24 VDC

DUST COLLECTION SYSTEM

Dust collector type Capacity/vacuum Filter elements/material Total filter surface Hydraulic motor output Weight DC 700H 23 m3/min at 1 000 mm vacuum H2O 10 pcs/fiber 8 m2 12 kW 190 kg

POWERPACK

Engine type Max. tilt angles Number of cylinders Engine output Transmission type Hydraulic pumps Screw compressor type Air flushing capacity Flushing air pressure Air cleaner Fuel tank Average fuel consuption Fuel saving system Weight

KOMATSU SAA6D102E-2

CARRIER

+/- 30° 6

107 kW / 1950 rpm

Gear box 2 variable, displacement piston, one gear pump Enduro 12 5.8 m3/min 4-10 bar 2 pcs, with safety element 290 l 14-19 l/h Standard 1 000 kg

Track type Grouser plate width Ground contact length Ground pressure Ground clearance Turnable superstructure Oscillation angles Tramming force Max. tramming speed

PC 128 size 330 mm 2 269 mm 0.7 kg/cm2 440 mm 120° (+30° / -90°) +/- 10° 80 kN 3.2 km/h

OPERATOR'S CABIN

Cabin type Certificates Noise level in the cabin Controls Heaters Pressurization Seat Vibration dampening Windows Power take-off Ergo F.O.P.S. and R.O.P.S. below 80 dB(A) Drilling, tramming, boom and rod changer Standard Standard Multiposition Standard Safety laminated, tinted, with wipers 12 VDC

ARTICULATED BOOM

Boom type Boom length Drilling coverage on flat Collaring height Horizontal holes DB 500 4,8 m 17.6 m² +2.5 m/-4.5 m To the right

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