Tunneling Excavators R 924 Copact R 944 C Product Inforation R 924 Copact R 944 C Litronic Operating Weight:,000-4,00 kg 4,600-44,200 kg Engine Output: 129 kw / 17 P 190 kw / 28 P Tunnel eight: 4.7-7.0.40-8.00
R 924 Copact R 944 C Operating Weight: Engine Output: Tunnel eight:,000-4,00 kg 129 kw / 17 P 4.7-7.0 Operating Weight: Engine Output: Tunnel eight: 4,600-44,200 kg 190 kw / 28 P.40-8.00 2 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Perforances Tunnel construction is one of the toughest environents for excavator operation that exists. The operation of a tunnel excavator becoes efficient when the achine, despite the harsh conditions, can cut out the tunnel profile required as rapidly as possible but in econoical fashion. This eans that a tunnel excavator ust produce a high hydraulic capacity and, above all, be provided with operational fittings which are tailored to the particular application. The hydraulic syste used with Liebherr tunnel excavators is optiized for illing. Liebherr tunnel excavators eet all the high deands iposed in tunnel construction in every respect, with both the basic achine and the attachent precisely atched to this particular type of work, and consistently designed to achieve real econoical perforance. Reliability Liebherr tunnel excavators are the result of decades of practical experience in the developent of truly reliable special equipent for deanding situations. All the aterials used have undergone intensive, long-ter tests and eet high Liebherr quality standards even under the hardest conditions. In addition to being extreely robust, the attachent on Liebherr tunnel excavators is able to rotate 2 x 4. The echanical quick coupling syste is provided with a reinforced locking unit and a wear protection eleent on the hook side. The sophisticated concept and the tried and trusted quality ake Liebherr tunnel excavators the absolute standard for reliability. Safety The special cab is safeguarded with FOPS and FGPS as standard. To prevent daage fro falling rocks, all the hoses in exposed locations on the equipent fittings are additionally secured by protection plates. The bucket cylinder is also attached in a lower position, and a cover fitted to both the lifting ras protects the hoses running between the. Cofort Characteristic of the special cab on the Liebherr tunnel excavator are the ergonoic design and high standard of operating cofort and convenience. The windows on the right and at the rear are fitted with polycarbonate panes, resistant to scratches and ipacts, and feature extreely good visibility properties. As an option, the cab is also available with polycarbonate window panes all round. R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Equipent Special tunnel boo with 2 x 4 tilting echanis Optial disposition and protection of hoses and pipes Liebherr quick coupler for a sipler tool changing Special position of cylinders to be better protected Dozer blade with cylinder protection Deflector blades Travel drive protection or 4 track guides at each track frae 4 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Tunneling version Operator s cab Adjustable seat with synthetic leather seat cover, easy to clean Good visibility in height Integrated FOPS protection and FGPS in the front Electronic coponents with protection (display and keyboard) Tunneling specificities Uppercarriage with steel structure Back-up warner Working headlights with protection ydraulic syste optiized for the cutting head application R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Technical Data R 924 Copact Engine Rating per ISO 9249 129 kw (17 P) at 1,800 RPM Model Liebherr D 94 S Type 4 cylinder in-line Bore/Stroke 122/16 Displaceent 6.6 l Engine operation 4-stroke diesel unit pup syste turbo-charged after-cooled reduced eissions Cooling water-cooled and integrated otor oil cooler Air cleaner dry-type air cleaner with pre-cleaner, priary and safety eleents Fuel tank 4 l Electrical syste oltage 24 Batteries 2 x 1 Ah/12 Starter 24 /7.8 kw Alternator three phase current 24 /0 A Engine idling sensor controlled ydraulic Syste ydraulic pup Positive Control Classic, regulation with Liebherr variable flow swash plate double pup, proportional controller hydraulically steered Max. flow 2 x 214 l/in. Max. pressure 0 bar Pup regulation electro-hydraulic with electronic engine speed sensing regulation, pressure copensation, flow copensation, autoatic oil flow optiizer, swing circuit with priority and torque control ydraulic tank 147 l ydraulic syste ax. 60 l ydraulic oil filter 1 full flow filter (20 µ) in return line with integrated fine filter area ( µ) and an additional leakage filter ydraulic oil cooler copact cooler, consisting of a water and fuel cooler, sandwiched with hydraulic oil cooler and after-cooler cores and hydrostatically driven fan MODE selection adjustent of achine perforance and the hydraulics via a ode selector to atch application ECO for especially econoical and environentally friendly operation POWER for axiu digging power and heavy duty jobs LIFT for lifting FINE for precision work and lifting through very sensitive oveents Super-Finish adjustable working speed for grading RPM adjustent stepless adjustent of engine output via the rp at each selected ode Tool Control ten preadjustable pup flows and pressures for add on tools ydraulic Controls Power distribution via onoblock control valve with integrated safety valves Servo circuit Attachent and swing proportional via joystick levers Travel proportional via foot pedals or reovable hand levers speed pre-selection Additional functions via foot pedals or joystick toggle switch for illing cutter/haer, 2 x 4 rotator and dozer blade Swing Drive Drive by Liebherr swash plate otor Transission Liebherr copact planetary reduction gear Swing ring Liebherr, sealed single race ball bearing swing ring, internal teeth Swing speed 0 12.7 RPM stepless Swing torque 70.2 kn olding brake wet ulti-disc (spring applied, pressure released) Option pedal controlled positioning brake Operator s Cab Cab according to guidelines for tunnel application: FOPS, FGPS plus Polycarbonate windows on attachent side Operator s seat shock absorbing suspension, adjustable to operator s weight, 6-way adjustable seat Joysticks integrated into adjustable seat consoles Monitoring enu driven query of current operating conditions via the LCD display. Autoatic onitoring, display, warning (acoustical and optical signal) and saving achine alfunction data, for exaple, engine overheating, low engine oil pressure or low hydraulic oil level Noise eission 2000/14/EC L WA (surround noise) = 2 db(a) D-SL heavy duty, wide gauge and longer crawler length Drive Liebherr swash plate otors with integrated brake valves on both sides Transission Liebherr planetary reduction gears Travel speed low range.2 k/h high range. k/h Net drawbar pull on crawler 208 kn Track coponents D 6 C, aintenance-free Track rollers/carrier rollers _ 8/2 Track pads double or triple grouser Tracks sealed and greased Digging locks wet ulti-discs (spring applied, pressure released) Brake valves integrated into travel otor Attachent Type cobination of resistant steel plates and cast steel coponents ydraulic cylinders Liebherr cylinders with special seal-syste, shock absorbed Pivots sealed, low aintenance Lubrication fully autoatic Liebherr central lubrication syste (except bucket tilt linkage) ydraulic connections pipes and hoses equipped with SAE splitflange connections Basic boo.0 or.0 with 2 x 4 rotator Stick.20 or 4.20 with integrated bucket tilt cylinder Bucket D ripper bucket with cutting width 700 6 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Diensions W F E D A C R 924 Copact K P 1 X1 L U N S B G A 2,990 C,20 D 1,690 E 1,690 F 1,41 2,2 K 1,14 L,70 P 1,06 S 2,400 U,070 N 600 B,000 G,160 Boo.0 with 2 x 4 Rotator and Stick.20 8,080 1 8,240 W,860 W1,7 X 8,60 X1 8, Boo.0 with 2 x 4 Rotator and Stick 4.20 9,00 W 4,000 X 9,600 F E D A W C K P X L U N S B G R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator 7
Tunneling Excavator with Boo.0, 2 x 4 Rotator and Stick.20 R 924 Copact ft 0 2 20 9 8 7 6 1 4 2 12 00 6800 1 0 0 940-1 - -2 280 4980 - - -4-1 - 9 8 7 6 4 2 1 0 0 2 20 1 0 ft Digging Envelope Basic boo bolted in position II of upper carriage Tunnel height Advance 4.7 1.20.00 2.0.0 2.2 6.00 2. Operating Weight and Ground Pressure Operating weight includes basic achine with boo.0, 2 x 4 rotator, stick.20, quick coupler 48 and bucket 0.16 (700 kg). D-SL Pad width 600 Weight kg,000 Ground pressure kg/c 2 0.68 Digging Forces without Quick Coupler Max. digging force ISO kn 142 t 14. Max. breakout force ISO kn 14 t 14.8 8 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Tunneling Excavator with Boo.0, 2 x 4 Rotator and Stick 4.20 ft 0 2 9 8 7 R 924 Copact 20 6 1 4 400 00 2 770 1 0 0-1 1 - -2 - - -4-1 - 9 8 7 6 4 2 1 0 0 2 20 1 0 ft Digging Envelope Basic boo bolted in position II of upper carriage Tunnel height Advance.0 2.0 6.00 2.40 6.0 2.20 7.00 2. 7.0 1.90 Operating Weight and Ground Pressure Operating weight includes basic achine with boo.0, 2 x 4 rotator, stick 4.20, quick coupler 48 and bucket 0.16 (700 kg). D-SL Pad width 600 Weight kg 4,00 Ground pressure kg/c 2 0.71 Digging Forces without Quick Coupler Max. digging force ISO kn 116 t 11.8 Max. breakout force ISO kn 144 t 14.7 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator 9
Technical Data R 944 C Engine Rating per ISO 9249 190 kw (28 P) at 1,800 RPM Model Liebherr D 96 L Type 6 cylinder in-line Bore/Stroke 122/ Displaceent. l Engine operation 4-stroke diesel unit pup syste turbo-charged after-cooled reduced eissions Cooling water-cooled and integrated otor oil cooler Air cleaner dry-type air cleaner with pre-cleaner, priary and safety eleents Fuel tank 80 l Electrical syste oltage 24 Batteries 2 x 170 Ah/12 Starter 24 /6.6 kw Alternator three phase current 28 /0 A Engine idling sensor controlled ydraulic Syste ydraulic pup for attachent and travel drive Liebherr variable flow, swash plate double pup Max. flow 2 x 24 l/in. (+ 60 l/in. for illing cutter operation) Max. pressure 0 bar Pup regulation electro-hydraulic with electronic engine speed sensing regulation, pressure copensation, flow copensation, autoatic oil flow optiizer ydraulic pup for swing drive reversible, variable flow, swash plate pup, closed-loop circuit Max. flow 149 l/in. Max. pressure 0 bar ydraulic tank 40 l ydraulic syste 0 l ydraulic oil filter 1 full flow filter in return line with integrated fine filter area ( µ) ydraulic oil cooler copact cooler, consisting of a water cooler, sandwiched with hydraulic oil cooler and fuel and after-cooler cores and hydrostatically driven fan MODE selection adjustent of achine perforance and the hydraulics via a ode selector to atch application ECO for especially econoical and environentally friendly operation POWER for axiu digging power and heavy duty jobs LIFT for lifting FINE for precision work and lifting through very sensi tive oveents RPM adjustent stepless adjustent of engine output via the rp at each selected ode ydraulic Controls Power distribution via onoblock control valve with integrated safety valves Flow suation to boo and stick Closed-loop circuit for uppercarriage swing drive Servo circuit Attachent and swing proportional via joystick levers Travel proportional via foot pedals or reovable hand levers speed pre-selection Additional functions via foot pedals or joystick toggle switch for illing cutter/haer, 2 x 4 rotator and dozer blade Swing Drive Drive by Liebherr swash plate otor with integrated brake valves Transission Liebherr copact planetary reduction gear Swing ring Liebherr, sealed single race ball bearing swing ring, internal teeth. Lubrication via a grease distributor and a grease nipple Swing speed 0 8.2 RPM stepless Swing torque 84 kn olding brake wet ulti-disc (spring applied, pressure released) Option pedal controlled positioning brake Operator s Cab Cab according to guidelines for tunnel application: FOPS, FGPS plus Polycarbonate windows on attachent side Operator s seat shock absorbing suspension, adjustable to operator s weight, 6-way adjustable seat Joysticks integrated into adjustable seat consoles Monitoring enu driven query of current operating conditions via the LCD display. Autoatic onitoring, display, warning (acoustical and optical signal) and saving achine alfunction data, for exa ple, engine overheating, low engine oil pressure or low hydraulic oil level Noise eission 2000/14/EC L WA (surround noise) = db(a) Drive Liebherr swash plate otors with integrated brake valves on both sides Transission Liebherr planetary reduction gears Travel speed low range 2.8 k/h high range.0 k/h Net drawbar pull on crawler 246 kn Track coponents D 7 G, aintenance-free Track rollers/carrier rollers _ 9/2 Track pads double or triple grouser Tracks sealed and greased Digging locks wet ulti-discs (spring applied, pressure released) Brake valves integrated into travel otor Attachent Type cobination of resistant steel plates and cast steel coponents ydraulic cylinders Liebherr cylinders with special seal-syste, shock absorbed Pivots sealed, low aintenance Lubrication fully autoatic Liebherr central lubrication syste (except bucket tilt linkage) ydraulic connections pipes and hoses equipped with SAE splitflange connections Basic boo.07 or.70 with 2 x 4 rotator Stick 4.0 with integrated bucket tilt cylinder Bucket D ripper bucket with cutting width 700 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Diensions F E D A W C X L U Z K N Q S B G P R 944 C A,0 C,40 D,07 E,07 F 1,46 2,81 K 1,240 L 4,000 P 1,170 Q S 2,400 U,00 Z 6,090 N 00 600 B,020,020 G,00,00 Boo.07 with 2 x 4 Rotator and Stick 4.0 9,0 W,900 X,0 Boo.70 with 2 x 4 Rotator and Stick 4.0,000 W 4,200 X 11,000 F E D A W C K Q P X L U Z N S B G R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator 11
Tunneling Excavator with Boo.07, 2 x 4 Rotator and Stick 4.0 ft 11 0 9 2 8 7 R 944 C 20 1 6 4 2 1 200 400 970 0 0-1 - -2 70 - - -1-4 - 11 9 8 7 6 4 400 2 1 0 0 2 20 1 0 ft Digging Envelope Basic boo bolted in position II of upper carriage Tunnel height Advance.40 2. 6.00 1.90 6.0 1.7 7.00 1.60 Operating Weight and Ground Pressure Operating weight includes basic achine with boo.07, 2 x 4 rotator, stick 4.0, quick coupler 48 and bucket 0.16 (700 kg). D-S Pad width 00 600 Weight kg 4,600 44,000 Ground pressure kg/c 2 1.00 0.84 Digging Forces without Quick Coupler Max. digging force ISO kn 164 t 16.7 Max. breakout force ISO kn 191 t 19. 12 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Tunneling Excavator with Boo.70, 2 x 4 Rotator and Stick 4.0 ft 11 0 9 2 8 20 1 7 6 4 R 944 C 900 60 2 1 40 0 0-1 - -2 70 - - -1-4 - 11 9 8 7 6 4 400 2 1 0 0 2 20 1 0 ft Digging Envelope Basic boo bolted in position II of upper carriage Tunnel height Advance 6. 2.70 6.0 2.60 7.00 2.40 7.0 2.20 8.00 2.00 Operating Weight and Ground Pressure Operating weight includes basic achine with boo.70, 2 x 4 rotator, stick 4.0, quick coupler 48 and bucket 0.16 (700 kg). D-S Pad width 00 600 Weight kg 4,800 44,200 Ground pressure kg/c 2 1.01 0.8 Digging Forces without Quick Coupler Max. digging force ISO kn 171 t 17.4 Max. breakout force ISO kn 191 t 19. R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator 1
Equipent R 924 Copact track guide at each track frae Double grouser pads 600 Dozer blade with cylinder protection Idler protection Lifetie lubricated track rollers Mud guards Reinforced base-plate center-piece Tracks sealed and greased Travel gear protection Two-stage travel otors Uppercarriage Alternator 0 A Back-up alar Electrical device shut off Engine hood with lift help and echanical locking Fire extinguisher andrails, non slip surfaces Maintenance-free D-batteries Maintenance-free swing brake lock Protection grid on radiator fan Radiator protection grid Sound insulation Tool kit Upper carriage protection Custoized colors + Electric fuel tank filler pup + Foot pedal swing positioning brake + ydraulics Additional hydraulic circuits Control kit for eergency towing Electronic pup regulation Filter with integrated fine filter area ( μ) Flow copensation ydraulic tank shut-off valve Liebherr Positive Control Pressure copensation Pressure storage for controlled lowering of attachents with engine turned off Pressure test ports Stepless work ode selector Tool Control Bio-degradable hydr. oil + Filter for secondary circuit + ydraulic control for rotary drive + Operator s Cab 6-way adjustable operator seat with synthetic leather seat cover Additional flood lights Additional lights on cab roof (rear) Cab for tunneling application Display cover Eergency exit rear window Fire extinguisher Multi-function display Polycarbonate window at attachent side and rear window Seat belt Structural design according to guidelines: FOPS, FGPS Structural design according to guidelines: ROPS + Totally enclosed cab (additional door and window) with windshield wiper + Attachent 12 t lifting hook with safety link on bucket or on quick coupler Autoatic lubrication syste (except bucket tilt linkage) Cylinders with shock absorber ydraulic lines for additional tools ydraulic lines protection Mechanical quick coupler Piston rod cover for hoist cylinder ReGeneration plus SAE split flanges on all high pressure lines Sealed pivots/shaft seal between bucket and stick Work light on boo and stick Custoized colors + igh pressure circuit + Liebherr line of buckets + Quick disconnect hose couplers for additional tools + Special application buckets + Engine After-cooled Air filter with pre-cleaner ain- and safety eleent Confor with stage IIIA / Tier eission standard Fuel water separator Lainated radiator Sensor controlled engine idling Turbo-charged Unit pup syste Liebherr particle filter + = Standard, + = Option Options and/or special attachents, supplied by vendors other than Liebherr, are only to be installed with the knowledge and approval of Liebherr in order to retain warranty. 14 R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator
Equipent 4 track guide at each track frae Dozer blade with cylinder protection Idler protection Lifetie lubricated track rollers Mud guards Tracks sealed and greased Travel gear protection Two-stage travel otors Uppercarriage Alternator 0 A Back-up alar Electrical device shut off Engine hood with lift help and echanical locking Fire extinguisher andrails, non slip surfaces Maintenance-free D-batteries Maintenance-free swing brake lock Sound insulation Tool kit Upper carriage protection Custoized colors + Electric fuel tank filler pup + Foot pedal swing positioning brake + ydraulics Additional hydraulic circuits Control kit for eergency towing Electronic pup regulation Filter with integrated fine filter area ( μ) Flow copensation ydraulic tank shut-off valve Pressure copensation Pressure storage for controlled lowering of attachents with engine turned off Pressure test ports Stepless work ode selector Bio-degradable hydr. oil + Filter for secondary circuit + ydraulic control for rotary drive + ydraulic safeguard for overhead haer work + Reversible fan + Swing brake torque reducer + Operator s Cab 6-way adjustable operator seat with synthetic leather seat cover Additional flood lights Additional lights on cab roof (rear) Cab for tunneling application Display cover Eergency exit rear window Fire extinguisher Polycarbonate window at attachent side and rear window Storage roo Structural design according to guidelines: FOPS, FGPS Structural design according to guidelines: ROPS + Totally enclosed cab (additional door and window) with windshield wiper + Attachent 12 t lifting hook with safety link on bucket or on quick coupler Autoatic lubrication syste (except bucket tilt linkage) Cylinders with shock absorber ydraulic lines for additional tools ydraulic lines protection Piston rod cover for hoist cylinder ReGeneration plus SAE split flanges on all high pressure lines Sealed pivots/y sealant between bucket and stick Work light on boo and stick Custoized colors + igh pressure circuit + Liebherr line of buckets + Mechanical quick coupler + Quick disconnect hose couplers for additional tools + Special application buckets + R 944 C Engine Air pre-cleaner Confor with stage IIIA / Tier eission standard Direct injection Dry-type air cleaner w/pre-cleaner, ain and safety eleent Sensor controlled engine idling Turbo charger Liebherr particle filter + = Standard, + = Option Options and/or special attachents, supplied by vendors other than Liebherr, are only to be installed with the knowledge and approval of Liebherr in order to retain warranty. R 924 Copact Tunneling Excavator R 944 C Litronic Tunneling Excavator 1
Wide Product Range State-of-the-art Technology The Liebherr Group is one of the largest construction equipent anufacturers in the world. Liebherr s high value products and services enjoy a high reputation in any other fields. The wide range includes doestic appliances, aerospace and transportation systes, achine tools and aritie cranes. To provide consistent, top quality products, Liebherr attaches great iportance to each product area, its coponents and core technologies. Iportant odules and coponents are developed and anufactured in house, for instance the entire drive and control technology for construction equipent. Exceptional Custoer Benefit Worldwide and Independent Every product line provides a coplete range of odels in any different versions. With both their technical excellence and acknowledged quality, Liebherr products offer a axiu of custoer benefits in practical application. ans Liebherr founded the Liebherr faily copany in 1949. Since that tie, the enterprise has steadily grown to a group of ore than 10 copanies with over 8,000 eployees located on all continents. The corporate headquarters of the Group is Liebherr International AG in Bulle, Switzerland. The Liebherr faily is the sole owner of the copany. www.liebherr.co Printed in Gerany by Schirer RG-BK-RP LFR/SP 11491924-2-01.1_enGB All illustrations and data ay differ fro standard equipent. Subject to change without notice. All indicated loads are based in accordance with ISO 9248. The Liebherr Group of Copanies Liebherr-France SAS 2 avenue Joseph Rey, B.P. 90287, FR-6800 Colar Cedex + 89 21 0 0, Fax + 89 21 7 9 www.liebherr.co, E-Mail: info.lfr@liebherr.co www.facebook.co/liebherrconstruction PI_R924Cop_R944C-T_T_enGB_1-01.indd 16 1.01.1 :20