S250 ROCK DRILL Rock Drill & Blast Equipment and Technical Overview

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Bernard Holland
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2 Copyright All rights reserved. S250 rock drill continues on its long history of providing premium Rock Drill and Blast Drilling products for the most demanding conditions with the reinvented S250 Pneumatic Rock Drill. The S250 is the global standard for high performance, premium benefits, long lasting reliability, and the highest quality for hand held rock drills. The S250 is offered in three primary configurations, Jackleg, Stoper, and Sinker, to provide maximum versatility. improves on the S250 history through using premium materials and components which are assembled to strict quality standards in Canada. Performance s S250 pneumatic rock drill is a high performance drill ideal for development and stoping applications where high drilling speed is a primary requirement. The S250 s size and versatility allows for drilling in confined spaces and orientations. It is designed with an ideal power/ weight ratio to provide optimum balance between power, mass and vibration for maximum productivity and fast penetration. Premium Benefits The S250 s legendary performance and reliability delivers world class productivity with fast penetration rates and minimal downtime. It provides maximum operator comfort and minimizes fatigue by offering precise leg controls, lightweight design, and an optional muffled version. The rugged design was developed for the most demanding conditions and provides a durable, long lasting machine. The simple construction means easier and less frequent servicing with less opportunity for wear. The S250 s reduced part count and reduced complexity provides a more robust design as compared to competitors drills. Reliability The S250 rock drill has been commonly referred to as the Bonus Drill because of its exceptional reliability and performance. Assembled and tested in Canada from premium materials and exact specifications, every S250 rock drill is measured against strict standards for output and capacity prior to shipment to ensure that each drill delivers on performance, guaranteed.

Copyright 2012. All rights reserved. Premium materials The S250 uses premium materials, machined to exacting specifications to deliver high performance and exceptional durability.

3 Copyright All rights reserved. Premium materials The S250 uses premium materials, machined to exacting specifications to deliver high performance and exceptional durability. proven technology Boart Longyear s S250 rock drill is based on the wellestablished, market-leading S250 design. UTILITY The S250 is available in three primary variations including Jackleg, Stoper and Sinker, providing maximum utility for the specific customer needs. Both muffled and unmuffled versions are available. HEX 22 MM AND 25 MM CHUCK ENDS provides both 22 mm and 25 mm hex chuck ends to accommodate popular steel sizes. services & TRAINING offers on-site services training and complete rebuild and overhaul service to ensure optimal drill performance and extended life.

4 S250 TECHNICAL INFORMATION Jackleg / Sinker Drill Jackleg / Sinker Rock drill Specification: Bore 79.4 mm in Stroke mm in Blows / Minute 6.2 bar 90 psi Air Consumption 4.4 m 3 / 6.2 bar psi Air Connection - 1 in BSP Water Connection - 1/2 in BSP Notes: 1. The figures in these tables have been calculated based on field experience, and may be reasonably expected. 2. Actual drilling capacity will depend on in-hole tools and conditions, drilling techniques and equipment used. Supply Hose ID (required): Air 25 mm 1 in Water 12 mm 1/2 in Steel Size (HEX) - Chuck End: Standard 22 mm HEX x 108 mm long 7/8 in HEX x 4-1/4 in long Optional 25 mm HEX x 108 mm long 1 in HEX x 4-1/4 in long * Drill designed to except collared/tapered HEX steel to ISO standard 723 Standard S250 Airleg (Sold Separately): Bore Diameter 68 mm in Stroke Length 1295 mm 51 in Thrust 230 kg at 6.2 bar psi 3 Copyright All rights reserved.

5 Optional S250 Airleg (Sold Separately): Stroke Length 991 mm 39 in Stroke Length 762 mm 30 in Noise Emissions* Muffled - Noise Pressure db(a) - Power db(a) Unmuffled - Noise Pressure db(a) - Power db(a) Notes: 1. Noise levels are measured in accordance with ISO3744 and SANS1470 (Part 4) 2. * has done extensive research and testing in noise reduction and have found that a proper hearing conservation program is an effective means of dealing with elevated noise levels. Copyright All rights reserved. 4

S250 dimensions and weights Jackleg / Sinker Drill S250 Jackleg

5 kg 34 lb S250 Sinker Drill Sinker Weight Muffled 36.

6 S250 dimensions and weights Jackleg / Sinker Drill S250 Jackleg Drill Jackleg and Optional Airleg Weight (less airleg) Muffled 42.2 kg 93 lb Unmuffled 41.3 kg 91 lb Standard length Airleg Weight 15.5 kg 34 lb S250 Sinker Drill Sinker Weight Muffled 36.8 kg 81 lb Unmuffled 35.9 kg 79 lb 497 mm (19.6 in) mm (5.3 in) mm (27.9 in) 5 Copyright All rights reserved.

7 S250 TECHNICAL INFORMATION Stoper Drill Stoper Rock Drill Specification: Bore 79.4 mm in Stroke mm in Blows / Minute 6.2 bar 90 psi Air Consumption 4.4 m 3 / 6.2 bar psi Air Connection - 1 in BSP Water Connection - 1/2 in BSP Supply Hose ID (required): Air 25 mm 1 in Water 12 mm 1/2 in Steel Size (HEX) - Chuck End Standard 22 mm HEX x 108 mm long 7/8 in HEX x 4-1/4 in long Optional 25 mm HEX x 108 mm long 1 in HEX x 4-1/4 in long * Drill designed to except collared/tapered HEX steel to ISO standard 723 Standard S250 Airleg (Sold Separately) Bore Diameter 68 mm in Stroke Length 1,295 mm 51 in Thrust 230 kg at 6.2 bar psi Optional S250 Airleg (Sold Separately) Stroke Length 991 mm 39 in Stroke Length 762 mm 30 in Copyright All rights reserved. 6

8 S250 dimensions and weights Stoper Drill S250 Stoper Drill Stoper Weight Muffled 42.2 kg 93 lb Unmuffled 41.3 kg 91 lb Standard Airleg Weight 15.5 kg 34 lb 1,727 mm (68 in) 7 Copyright All rights reserved.

S250 TECHNICAL INFORMATION Jackleg, Stoper, Sinker Drill S250 Jackleg /

6 lb Capacity (rock drill oil) 600 ml 36.

9 S250 TECHNICAL INFORMATION Jackleg, Stoper, Sinker Drill S250 Jackleg / Stoper / Sinker Drill Football Style Lubricator Weight 4.8 kg 10.6 lb Capacity (rock drill oil) 600 ml 36.6 in 3 Min / Max Adjustment: 1/4 turn 4 hours drilling capacity with S250 Rock drill Install in line, within 3.5 m (12 ft) of Rock drill * TSSA certified pressure fitting mm (5.6 in) 203 mm (8 in) mm (4.5 in) 1-1/4 in. NPT Both Ends Copyright All rights reserved. 8

10 TECHNICAL SERVICES GROUP Your equipment investment is supported by experienced teams of factory-based service technicians. Inhouse and field-based repair services are available as well as technical advice and support. With fully equipped facilities and professional staff, we provide: OEM-trained staff and genuine parts to optimize your drilling fleet Guaranteed component repair and overhaul Drill rig repair, overhaul and modification Direct access to OEM manufacturing support staff, technical data and engineering TRAINING Being able to operate, maintain and troubleshoot your own drilling equipment starts with understanding how and why all the various components work. Boart Longyear offers training programs that provide the key information needed to properly operate and perform basic repairs on S250 rock drills. This training can help minimize down-time related to equipment maintenance. 9 Copyright All rights reserved.

Global Headquarters 10808 South River Front Parkway Suite 600 South Jordan, Utah 84095 United States of America info@boartlongyear.

com Tel: +56 2 595 3300 Fax: +51 242 671 Canada 2442 South Sheridan Way Mississauga, Ontario Canada L5J 2M7 info@boartlongyear.

com Tel: +41 22 709 0800 Fax: +41 22 709 0801 Asia Pacific 26 Butler Boulevard Adelaide, 5950 Australia infoap@boartlongyear.

12 Global Headquarters South River Front Parkway Suite 600 South Jordan, Utah United States of America Tel: Fax: Latin America Portal Riesco Av. El Salto 4001, Huechuraba Santiago, Chile Tel: Fax: Canada 2442 South Sheridan Way Mississauga, Ontario Canada L5J 2M7 info@boartlongyear.com Tel: Fax: Europe 12 Avenue des Morgines CH1213 Petit-Lancy, Geneva, Switzerland infoeu@boartlongyear.com Tel: Fax: Asia Pacific 26 Butler Boulevard Adelaide, 5950 Australia infoap@boartlongyear.com Tel: Fax: Sub-Saharan Africa Cycad House, Constantia Office Park Cnr 14th Avenue and Hendrik Potgieter Weltevreden Park, 1709 Gauteng, South Africa infosa@boartlongyear.com Tel: Fax: ROCK DRILL AND BLAST DRILLING PRODUCTS Copyright All Rights Reserved. Production Equipment Rock Drill and Blast Tooling Technical Services and Training ASX: BLY Jan 2012

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LM 30SS - UNDERGROUND CORE DRILL Technical Overview Copyright 2011 Boart Longyear. All rights reserved. LM 30SS (SKID STEER) - UNDERGROUND CORE DRILL The LM30SS (Skid Steer) drill is a mobile underground