SANDVIK CR320 FEEDER BREAKER TECHNICAL SPECIFICATION The Sandvik feeder breaker CR320 is a robust, modular machine designed for heavy duty underground coal mine operations. The machine is suitable for low-to-high seam applications and its design incorporates features supporting high productivity and reliability at low operating costs. The CR320 is the ideal choice for primary reduction of ROM coal down to a manageable grain size and smooths the flow on to the mine s conveyor belt. Both intake and discharge ends are designed to meet customer preferred haulage means. The attached tail piece and anchoring system allow faster belt moves and advancement of the conveyor system. The integrated spool monitoring fulfills the need in sight of operator safety and meets the highest standards of safety. The CR320 feeder breakers are of FLP flame proof design according to various global regulations KEY FEATURES AND BENEFITS Sturdy and rugged structural components requiring less maintenance, longer components lifetime leading to longer cycles between overhauls Bolted split frame consisting of 4 frame modules enable transport via small mine shaft dimensions Simple electrics and hydraulics improves meantime between failures and repair Integrated spool monitoring system avoids unintended machine movements and increases the safety standard SIL2 (Safety integrity level) rated emergency stops and start-up monitoring adds another high level safety feature Strong service and support competence to ensure short repair times and excellent maintained machines
CR320 BASIC EQUIPMENT Strong breaker/hydraulic pump motor 160 kw Height adjustable breaker with Cat seals Bolted split frame (frame modules) Conveyor width 1420 mm (56 ) Variable conveyor speed control Hydraulic system equipped with variable displacement piston pump/gear pump Heavy duty crawlers with 15 cat pads Crawler tracks with free-wheel capability Special designed 3.5 pitch lug conveyor chain with 2x6 alloy flights Jack suspension system PLC with panel view Water spray system for dust suppression Breaker Heavy duty conveyor chain 3-way dump receiving end Main panel Hydraulic oil tank 15 heavy duty crawlers Dual conveyor drive Valve bank Control panels Hydraulic pumps Breaker motor Breaker gearbox Conveyor reverse pump Oil/air cooler Fire extinguisher 2 SANDVIK CR320
OVERALL DIMENSIONS TECHNICAL DATA POWER AND PERFORMANCE Total installed power 175 kw (240 hp) OVERALL PHYSICAL DIMENSIONS Overall length 11050 mm (435 ) Minimum tram height 1560 mm (61.5 ) Overall width (56 conveyor) 3480 mm (137 ) Maximum tram height 1760 mm (69 ) Overall height (lowest position) 1560 mm (61.5 ) Discharge height Conveyor width 1420 mm (56 ) Receiving height Ground clearance min. 54 mm (2.1 ) Operating height Ground clearance max. 263 mm (10.3 ) 825 mm (32.5 ) 350 mm (13,8") 1730 mm (68 ) CR320 with roof anchoring system, belt tailpiece, hopper flaps, area lights (Longwall application) Overall width (56 conveyor) 4260 mm (167.7 ) Discharge height, min 760 mm (30 ) Overall height (transport) 2000 mm (78.7 ) Discharge height, max 1340 mm (52.7 ) Overall height (operating position) 3900 mm (153,5 ) PROCESSED MATERIAL Processed material ROM coal Max. material input size 1000 x 1000 mm (40 x 40") Max. material strength 120 MPa Nominal output size 160 mm (6,3 ) (Cross section) WEIGHTS, CAPACITY AND GROUND PRESSURE Machine weight *) 40000 kg (88000 lbs) Throughput rate 1000 mtph (1100 stph) Level hopper capacity 14 m³ (495 cft) Hopper capacity with 12" sideboards (Option) 18 m³ (635 cft) Ground pressure 0.28 N/mm² 2.87 kg/cm² 280 kpa 41 PSI Max. operating grade (longitudinal/transversal) 1 in 4 25% 14 / 1 in 14 7% 4 *) Optional equipment will increase the machine weight and ground pressure SANDVIK CR320 3
TECHNICAL DATA CONVEYOR AND CONVEYOR CHAIN Conveyor width 1420 mm (56 ) Number of strands 2 Chain type Ladder style chain Chain pitch 88.9 mm (3.5") Flights 50 x 300 mm solid alloy (2" x 6" solid alloy) Conveyor chain speed (infinitely variable) 0-30 m/min (at 50 Hz) (0-98 fpm) Conveyor reversing 15 kw motor with pump to reverse conveyor when breaker got stuck Conveyor drive Dual hydraulic motor, direct drive CRAWLERS Crawler speed 12 m/min (at 50 Hz) (39 fpm) Drive Hydraulic motors with 2 integrated parking brakes Traction control By valve bank or cable remote control (Option) Pad width 381 mm (15 ) BREAKER UNIT Shaft diameter 200 mm (8") Pick circle diameter 711 mm (28") Number of picks 30 Breaker drum speed 60 rpm Height setting (crushing gap) variable in 50.8 mm steps (variable in 2" steps) HYDRAULIC EQUIPMENT Hydraulic pumps Conveyor motor Tram motors Lift cylinders (track cylinders) Roof anchoring system (2 cylinders) Belt tailpiece (4 cylinders) Reservoir, tank capacity Heat exchanger Oil filling method Variable displacement and gear pump, open loop Dual conveyor drive Axial piston hydraulic motors 4 pc. (Option) (Option) 570 litre (150 gallon) Oil/water, oil/air Manual hand pump WATER EQUIPMENT Spray control system Flow rate Water filter Supply pressure Mechanical paddle valve 19-38 l/m (5-10 gpm) Screen strainer integral pressure reducing valve Max. 27.5 bar (400 PSI) Operating pressure 10 bar (150 PSI) ELECTRICAL EQUIPMENT Breaker/hydraulic pump motor Auxiliary hydraulic pump motor Emergency stops Head lights 160 kw (220 hp) 15 kw (20 hp) 4 E-Stops, 2 on each machine side 4 lights, 2 on each machine end (Option) 4 lights, 2 on each machine end (Option) APPROVALS ATEX, Europe GOST, Russia MSHA, USA DGMS, India Others on request SAFETY EQUIPMENT Audible warning device (start-up horn) Pull cord switch across hopper 4 E-Stops Water dust suppression system Two 6 kg fire extinguishers Rotating beacon 4 SANDVIK CR320
CR320 EQUIPPED WITH OPTIONS Roof anchoring system Stabilize machine against roof to support belt tension forces Conveyor belt tailpiece Belt widths & pulley diameters according to customer spec. Hopper flaps (moveable) For long wall development, incl. cylinders Second start-stop station Mounted on opposite machine side Head lights 4 head lights (2 lights front and rear) 4 area lights (2 lights front and rear) Sideboards Height 300 mm (12 ), steel Heavy duty crawlers 508 mm (continuous miner style) / (20 (miner style)) Proximity detection system Interface can be provided Methane monitoring system Interface can be provided Radio remote control For tramming and operation of lifting jacks Cable remote control For tramming and operation of lifting jacks Tool kit 1-way dump receiving end Roof anchoring system Cable remote control Flashing beacon Hopper flaps Head lights Fire extinguisher Start-stop station Sideboards Belt tail piece OVERALL DIMENSIONS SANDVIK CR320 5
OPERATING POSITIONS INTEGRATED WITH TAIL PIECE, ROOF ANCHORING SYSTEM AND HOPPER FLAPS (LONGWALL DEVELOPMENT) Sandvik Mining reserves the right to make changes to the information on this data sheet without prior notification to users. Please contact a Sandvik representative for clarification on specifications and options. MINING.SANDVIK.COM TS4-004-01/ENG/METRIC Sandvik Mining 2015 SANDVIK is a registered trademark owned by Sandvik Intellectual Property AB in Sweden and other countries. OPERATING POSITIONS (BASIC MACHINE)