Sandvik Mining Construction Tomago Pty Ltd ACARP Roadway

Sandvik Mining & Construction (Tomago) Pty Ltd ACARP Roadway Development – Operators’ Workshop Sandvik Development Systems

Sandvik – global leader Three business areas Sandvik Tooling Sandvik Mining and Construction Sandvik Materials Technology Invoiced sales, M SEK 22, 500 (AUD 3989) SEK 25, 000 (AUD 4432) SEK 19, 300 (AUD 3422) Employees 15, 100 12, 200 8, 600 31 Dec. 2006 Sandvik Mining and Construction

Our history Toro Driltech EIMCO Sandvik Mining and Construction EJC Secoma Rammer SDS Roxon Shark Hydramatic Voest-Alpine Tamrock Sandvik Rock Tools UDR Hagby-Asahi Drillmaster Implemin Mission MGT 1998 Sandvik Mining and Construction New strategy Prok Brøyt Beltreco BPI Svedala Toyo Applications & solutions 2006 2007

Sandvik Development Systems l Introduction – Sandvik l Where we have come from l Where we are now (and what has driven the changes) l Where is our future ~ 2012 (5 years) l New Products Sandvik Mining and Construction

Where We Have Come From • 1 st simultaneous cut and bolt machine (commercially available) • Capable of achieving high “one off” performance results, not been sustainable – over longer term Why? • Ergonomics • Complex engineering & maintenance • Not able to measure development system/process constraints (pillar design, matched equipment, service support etc) Sandvik Mining and Construction

Where Are We Now - Ergonomics l Platforms are larger, level, clear and open l Bolter station positions and push button controls l Operator screen locations l Non slip and anti vibration floor mats (reduce fatigue/vibration) l Adjustable height platforms (reduced repetitive strain) l Access / egress (fold up rear steps, 3 point contact) l Machine lighting – (to illuminate walkways, ladders, controls, work areas) l North / South roof rigs (reduces twisting during bolting) Sandvik Mining and Construction

Where Are We Now - Ergonomics • Integrated mesh carrier (reduduces manual handling) • Housekeeping (materials/consumables stored to suit ergonomic & open work area philosophy) • +100% increase in ventilation duct area • “Outrigger” design supports flexible duct and minimises twisting (maintains vent duct area) • Hydraulic driven air fans provide evaporative cooling in a humid environment (prevents safety glasses from fogging up and assists with dust control) • Flexible ducting “connect/reconnect” designed for single man operation (for changing material pods if required) Sandvik Mining and Construction

Where Are We Now – Engineering/Maintenance l l Hose and cable management (manifolds, exterior routing) Recirculating oil filtration (eliminates high pressure filters) 24 V flameproof solenoids Simplified hydraulics/reduced complexity fully load sensing and single in line pumps l 2 speed drill motors – lower pump flow requirements l 6 rig simultaneous operation l Fully load sensed hydraulics (including bolters) = lower operating temperatures (from 60 deg - < 40 deg) Sandvik Mining and Construction

Where Are We Now – Measuring the Process Sandvik Mining and Construction

Uptime versus Downtime But what happens in the ‘uptime’…. Sandvik Mining and Construction

There is the need to compare these results with what can be realistically achieved…. Sandvik Mining and Construction

Theory vs reality, but how is it monitored? . . Sandvik Mining and Construction

ABM 20_010 Cyclereport from 2003/05/07 Shift 3: Cycle Time Cutting Activity Bolter Activity Conveyor Activity [min] Cycles longer than the planned 11 minute cycle time. These cycles require a more detailed investigation from a process control perspective. The remaining cycles have achieved 11 minutes or less. 30 • Manage by exceptions 24 20 16 Average 12 8 4 0 0 h 1 h 2 h Sandvik Mining and Construction 3 h 4 h 5 h 6 h 7 h 8 h

ABM 25_015 Cyclereport from 2004/06/17 Shift 2: [min] Cycle Time Cutting Activity Bolter Activity Conveyor Activity At this point, if it was a 2 shuttle car cycle, the cycle time achieved would have been 10 minutes or less. Due to requirement for 3 rd shuttle car, cycle times of 16 minutes achieved. 30 24 Average 20 16 12 8 4 0 0 h 1 h Sandvik Mining and Construction 2 h 3 h 4 h 5 h • ~ 50% increase in cycle time from a 2 car cycle to a 3 car cycle 6 h 7 h 8 h

Sandvik Mining and Construction

Sequential roof and rib bolting Rib bolting (generally) takes longer Sandvik Mining and Construction

Macro View -Performance expectations should be variable and based on conditions, position in pillar cycle etc, not averaged over an entire gate road - Performance expectations can be based on actual history Sandvik Mining and Construction

Where is our Future ~ 2012 Focus on development system solutions l Ergonomics – improved ergonomics leads to safer and more productive development (continue drive towards zero harm) l Engineering/Maintenance (continue drive towards 100% reliability) l Measuring the development system/process performance l Towards Automation l New Products Sandvik Mining and Construction

Measuring the development system/process performance l Live production reports (on machine & surface) (maintain a consistent “sense of urgency”) l Roof mapping (real time and panel duration) l Longer term trending of operational data (weekly, monthly, pillar etc) l Longer term trending of predictive maintenance data l Playback in 3 D (all functions monitored) l Equipment monitoring /reporting => management tool to improve development performance l It wont change anything by itself – it does enable the right questions to be asked (and provides interested people with a more accurate understanding of the development process) Sandvik Mining and Construction

Towards Automation l l Electronic Push Button Drill Rig Control ü greater control and flexibility over the drilling and bolting process, ü software controlled (not reliant on hydraulic logic) ü Consistent bolt set times and guaranteed minimum bolt torque ü Easily adaptable for any self drilling bolts ü Future technology developments will make units smaller Horizon control /Auto Cut ü possible interface with new & existing (coal seam/rock, in-seam stone bands etc) technologies (gamma, CID, infra red etc) ü l l Auto Cut – simple/easy to use/flexible (get the basics right first) Interface with materials/services systems ü Material pod changeout systems (including continuous haulage systems) ü Monorail systems (ventilation, complete) Integration with other Sandvik product line technologies ü Drilling / bolting / systems ü Cable bolt feed systems etc l Potential interface with other development process management systems l Self drilling bolt (Steve Weaver) Sandvik Mining and Construction

New Products – EBS 120 Punch Mining System Continuous Haulage System • Utlises an ABM 10 with mobile hopper car and LTU system (~200 m punches) • Currently in operation in USA • Designed capacity > 10 metres/operational hour Sandvik Mining and Construction

Su b-M ain Ad van ces as ne ed ed. Panels develop from Return Side Extraction Sequence Sandvik Mining and Construction

New Products – CHS 500 – SICON Conveyor Continuous Haulage System • ~ 220 m length (500 m 3/hr) • Currently being built in USA Sandvik Mining and Construction

Sandvik Mining and Construction