Bobcat Welder/AC Generator 225 And 250 Gas Or LP Engine-Driven

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Issued February 2018 Index No. ED/4.4 Bobcat 225 and irFarm/ranchFabricationStructural steel workUse as a stand-alonegeneratorGas or LP Engine-DrivenWelder/AC GeneratorProcessesOutput Range225250250 EFIStick (SMAW)MIG (GMAW)Flux-cored (FCAW)DC TIG (GTAW)Non-critical AC TIG (GTAW)Air carbon arc (CAC-A) cutting and gouging(250 model only, 3/16 in. carbons)Air plasma cutting and gougingwith optional Spectrum modelsAC stick/TIGDC stick/TIG*MIG/flux-cored60–160 A40–225 A19–28 V40–250 A40–250 A17–28 V40–250 A40–250 A17–28 V*DC TIG available above 80 amps.Generator Power Output Rated at 104 F (40 C)225/250: 11,000 watts peak225/250: 9,500 watts continuous250 EFI: 12,000 watts peak250 EFI: 10,500 watts continuousRugged welder/generators are great for stick and flux-cored welding.Designed for maintenance/repair operations, construction, farm,ranch and generator use.The most popular welder/generatorin the industry, the Bobcat is: Quieter to operate Smaller and lighter More fuel efficient with EFI Easier to maintainSafer, more productivejobsiteEasier mobility and uses lesstruck space and payloadEasier MaintenanceWith its intuitive design, thedaily maintenance of ourBobcat welder/generatorsis faster and easier.Bobcat 250 EFI model shown.Welder/generator is warranted for three years, parts and labor.Engine is warranted separately by the engine manufacturer.Miller Electric Mfg. LLCEquipment Sales US and CanadaAn ITW Welding Company1635 West Spencer StreetP.O. Box 1079Appleton, WI 54912-1079 USAPhone: 866-931-9730FAX: 800-637-2315International Phone: 920-735-4554International FAX: 920-735-4125MillerWelds.com

The Bobcat Advantage Quieter and better sound*Easier maintenance*Significant improvements in soundlevel and quality offer better jobsitecommunication, which provides a safer,more efficient working environmentfor you and your crew. Bobcatwelder/generators have rotated theengine toward the front to create moreS fefficient airflow, resulting in significantly quieter operation.Now youcan start your job earlier in the day and end it later, as well as workaround hospitals, businesses, and residential areas.With its intuitive design, the daily maintenance of our Bobcatwelder/generators is faster and easier. With front panel maintenancedisplays, you know when your equipment needs to be serviced. Andservicing is simple because of: Oil checks that can be performed from the top by the front panel Toolless panels that allow for quick access Single-side fuel fill and oil drain/filterAir filterFuel fillOil filterSmaller and lighter design*Bobcat welder/generators take up lessspace on trucks and trailers — leavingmore room on your truck for otherequipment and tools. Plus, they’reeasier to move safely around jobsites —even with weld cables and runninggear attached.Easier mobilit and*Compared to previous modelDesigned for reliabilityFrom Appleton, Wis. USA, our welder/generatorsare the most rugged, durable and long-lastingin the industry. We manufacture them to exceedrequirements for extreme working conditionsand they are hard-working from the core: Copper windings and iron generatorcomponents for a quality-built machine Lugged — not soldered — heavy internalleads for better field durabilityOil fill Oil level check Superior cooling technologyfor maximum performanceand engine life Super-tough armor toprotect the welder/generator from accidental impact Protective armor doors to cover the weldstuds and receptacles as required by OSHAand CSA for jobsite safety Lift hook integrated into the center frame,which bolts to the machine’s base forgreater durabilityFuel filterOil drainLong runtimesLarge 12-gallon fuel capacity means manyhours of run time before refueling.Versatile AC and DC weld outputProvides quality welds on all types of metals.DC is smooth and easy to run while AC stickis used when arc blow occurs.Bobcat 250 Additional Features Front panel fuel and sight gauges provide convenient fuel levelindication Smoother weld output and better generator power while welding More weld output than 225-amp welder generators — 72 percentmore power for MIG/flux-cored, 67 percent more for AC welding,and 11 percent more for DC stickBobcat 250 recommended optionElectronic fuel injection (EFI)EFI gas engines optimize the air/fuel ratio forall engine speeds and engine loads, resultingin lower operational costs, fewer emissions, longer runtimes andbetter performance when compared to carbureted models. Thepayback from fuel savings alone is a matter of months.EFI advantages (vs. carburetor models) 12,000 watts of generator power Up to 27 percent better fuel efficiency — save up to 1,000 peryear in fuel and extend runtimes by as much as 2.5 hours per tank Fast, easy starts in all climates — no choke required Reliable operation, even with infrequent use — less prone tofuel deterioration Fewer emissions — 27 percent less CO and 33 percent lowerHC NOx levels2

Reversed Generator AirflowExclusive engine and generator packagingdesign operates cooler and more efficientlyThe engine is rotated towards the front to create more efficientairflow. More efficient airflow and exclusive engine location aresignificant contributors to reduced sound level and size reduction.Hot air recirculation is eliminated when machine is mounted in tightspots, and internal parts are kept cool for optimal performance.The Bobcat Generator Power Advantage Accu-Rated — not inflated generator powerTypical equipment power usageOur Accu-Rated 11,000 watts (12,000 with EFI) of usable peak power isdelivered for a minimum of 30 seconds. Accu-Rated means peak power is usablefor maximum generator loads such as plasma cutting, Millermatic MIG weldersand motor starting. Accu-Rated peak power beats the competition’s very shortduration peak or surge power. Use your peak power, it’s more than a number.Bobcat welder/generators will easily start and runthe following Barn Cleaner (5 hp)11,6003,000Silo Unloader (5 hp)12,2004,300Portable Conveyor (1/2 hp)3,4001,000Milker (5 hp)10,5002,800Hand Drill (1/2 inch)600600Circular Saw (8-1/4 inch)1,4001,400Air Compressor (1-1/2 hp)8,2002,200Flood Lights (Vapor)1,2501,000Smooth power — not spike powerRefrigerator/Freezer2,200700Revolutionary ten-degree skewed-rotor designoptimizes generator performance for smootherpower — not spiked power found with other brands.Better power — better performance.Sump Pump1,300800Millermatic 212 Auto-Set MIG Welder (230 V)6,5006,500Spectrum 625 X-TREME (30 A, 230 V, 1/2-inch cut)6,9006,900CompetitorWaveform ComparisonAC Power VoltsGenerator Power Curve300264250216200To select a generator that has enough power outputin watts, add the watts for the items you want tosimultaneously run. Tools and appliances with inductionmotors may require three to seven times the listed wattagewhen starting. All data listed is approximate — checkyour tool/appliance for specific wattage requirements.150132125108100150 75100 5050 25000204060801001201401601802002208090100110AC Power Amps at 120 V010203040506070AC Power Amps at 240 VTools and motors are designed to operate within 10 percent of 120/240 V. The powergenerator of the Bobcat provides strong power while keeping the voltage within 10 percent of120/240 V. This increases tool/motor performance and life.3

Specifications (Subject to change without C/ACStick/TIG1Amp/VoltRangesRated Weld Outputat 104 F (40 C)2Single-PhaseGenerator PowerSound Levels atMax. Load/150 A60 –160 A150 A at 25 V, 100% duty cycle73.5 dB/72 dB225 A at 25 V, 100% duty cycleH: 28 in. (711 mm)H: 32.75 in. (832 mm)(to top of exhaust)W: 20 in. (508 mm)D: 40.5 in. (1,029 mm)485 lb.(220 kg)40 – 225 APeak: 11,000 wattsContinuous: 9,500 watts120/240 V, 88/44 A, 60 HzPeak: 11,000 wattsContinuous: 9,500 watts120/240 V, 88/44 A, 60 Hz72.5 dB/72 dBH: 28 in. (711 mm)H: 32.75 in. (832 mm)(to top of exhaust)W: 20 in. (508 mm)D: 40.5 in. (1,029 mm)501 lb.(227 kg)CC/DCStick/TIGCV/DCMIG/FCAW19 – 28 V200 A at 20 V, 100% duty cycleCC/ACStick/TIG40 –250 A225 A at 25 V, 100% duty cycle250 A at 25 V, 60% duty cycleCC/DCStick/TIG 140 –250 A250 A at 25 V, 100% duty cycleCV/DCMIG/FCAW17– 28 V250 A at 28 V, 100% duty cycle275 A at 25 V, 60% duty cycleEFI ModelPeak: 12,000 wattsContinuous: 10,500 wattsNetWeight 3DimensionsNote: Derate outputs up to five percent when using LP fuel. 1) DC TIG available above 80 amps. 2) Rated at sea level. 3) Net weight without fuel.Certified by Canadian Standards Association to both the Canadian and U.S. Standards.Engine Specifications (Engines warranted separately by the engine manufacturer.)ModelEngine Brandand WarrantyHorsepower (HP)TypeBobcat225 and 250Kohler CH730,3-year warrantyGas: 23.5 hp at 3,600 rpmLP: 21 hp at 3,600 rpmBobcat250 EFIKohler ECH730,3-year warranty23 hp at 3,600 rpmTwin-cylinder, four-cycleoverhead valve, industrialair-cooled, gasoline*(carburetor or EFI) or ardShutdowns3,600rpm2,300rpm12 gal.(45 L)1.5 qt.(1.4 L)Low oilpressure*Fuel stabilizer is recommended for gas engines that are used infrequently.**Hose and LP Tank Mounting Assembly and setup are required.Performance DataMounting SpecificationsFuel Consumption1.75U.S. Gal./hourGGASGAS EFIGenerator Pwr1.50Generator PwrA B1.25Weld1.004 HolesWeldFront Panel2.00C0.750.50Idle 2,200 rpmD0.250.000501001502002503001012EFWeld Amperes at 100% Duty Cycle02468Power KVA at 100% Duty CycleFuel Consumption Data 12-gallon fuel capacity. On a typical job using 1/8-inch 7018electrodes (125 A, 20% duty cycle) expectabout 20 hours (gas) of operation. Welding at 150 A, 40% duty cycle usesapproximately 3/4 gallon per hour —about 16 hours of operation (gas). Under a continuous load of 4,000 watts ofgenerator power, the Bobcat would run forabout 14 hours (gas) of operation.4A. 20 in. (508 mm)B. 16.5 in. (419 mm)C. 1.75 in. (44.5 mm)D. 5.12 in. (130 mm)E. 22.3 in. (566 mm)F. 40.32 in. (1,024 mm)G. .406 in. (10.3 mm) diameter

Choose the Right Bobcat Engine Drive Sound LevelsBobcat 225At Maximum Load / At 150 AmpsSound QualityBobcat 250UPGRADE73.5 dB / 72 dB72.5 dB / 72 dBGoodVery Good13 hours13 hours / 15.5 hours with EFIGoodGood / Very Good with EFIFuel SystemTypical Runtime per 12-Gallon TankEfficiencyTypeDeliveryGasolineGasoline or LPCarburetorCarburetor or EFI available11,000 watts11,000 / 12,000 watts with EFIGeneratorPeak WattsClean Power QualityVery Good/ExcellentVery Good / ExcellentPower While WeldingFair/Good — With voltage controlset near maximumGood — Easier to fine-tune arc withvoltage control near maximumWeld PerformanceStickGood/Very GoodVery GoodFair ( .035 in.)Good ( .035 –1/16 in.)Fair/Good (add WC-115A with contactor)Very Good (add WC-115A with contactor)MIG — Wire (solid/FCAW), SteelMIG — Wire, Aluminum with Spool GunDC TIG (steel)AC WeldCarbon Arc GougingGoodVery Good70–150 amps40 – 250 ampsN/AGood (carbons: rated 3/16 in.)28 x 20 x 40.5 in.28 x 20 x 40.5 in.485 lb.501 lb.Hours/Oil changeHours / Oil change/FuelDimensionsSize (H x W x D)WeightKey FeaturesMaintenance DisplaysNote: See MillerWelds.com or the Full-line Catalog to compare to Trailblazer models.Function and Benefit Guide123456781. Maintenance display provides fuel level (250 models only), enginehours and oil change interval information.2. Weld process selector switch makes choosing between stick, wireand TIG processes easy. Switch also automatically changes polaritywith process selection to make sure the machine is easy to set withlittle effort or knowledge (on 225 model, weld process selectorswitch is combined with coarse range control).3. Coarse range control225 model — Three DC stick/TIG, one AC TIG, and one wire rangeare available for output control. Stick ranges are designed forelectrode diameters (3/32, 1/8 and 5/32 inch) making these modelsvery easy to set.250 model — Four stick/TIG and two wire ranges are available foroutput control. Stick ranges are designed for electrode diameters(3/32, 1/8, 5/32 and 3/16 inch) making these models very easyto set.4. Fine adjust control makes it easy to fine tune amperage within acoarse range. Set control above 7 for best power while welding andto 10 for generator-only use.5. Engine control switch is used to start the engine and then selectbetween auto idle and high speed lock positions.6. Engine choke control is used for easy engine starting.Note: No choke necessary on EFI models.7. 120/240 V receptacle with circuit breaker.(For matching plug, order 119172.)8. 120 V GFCI receptacles with circuit breakers.5

Genuine Miller Options *Available as factory option. See ordering information on back page. LP Gas*Liquid withdrawal LP system with vaporizer andregulator. Does not include tanks, brackets orhose from tank to regulator.Full KVA Plug119172 Field120/240 V, 50 A plug(NEMA 14-50P) to fit fullKVA receptacle.Note: Requires hose and LP tank mounting assembly300917.GFCI Receptacles* 300975 FieldKit contains two GFCI 120 V duplex receptacles.Electric Fuel Pump* 300976 FieldRecommended for gas engine operations ataltitudes above 5,000 feet. Improves enginestarting and high-output performance.Spark Arrestor 300924 FieldMandatory when operating on California grasslands, brush or forest-covered land, and allnational forests. For other areas, check yourstate and local laws.Remote Oil Drain and Filter Kit 300923 FieldFront mount for Kohler. Makes servicing easywhen engine drive is mounted in tight spots.FemaleReceptacleFull KVA Adapter Cord 300517 FieldNEMA 14-50P to NEMA 6-50R. Adapts enginedrive 120/240 V plug to common Millermatic and Spectrum 240 V plug.Order the following from Miller Service Parts.Engine Tune-Up Kits230015 Field. Kohler CH730 (gas)246115 Field. Kohler ECH730 (EFI gas)252838 Field. Kohler CH730 (LP)Includes spark plugs and engine filters.Genuine Miller Accessories Never Flat TiresAvailable on Bobcat andTrailblazer running gear. Eliminate costly jobsitedowntime Maintain constant tire pressure and willnot develop flats Protect against punctures Preserve maneuverability, even whenweighed down with heavy welding cableMulti-TerrainRunning Gear300913 Gas/LP,with inner tubes300914 Gas/LP,with Never Flat tiresIncludes two heavyduty 15-inch tires, two 8-inch rubber swivelcasters and a heavy-duty handle. Recommendedfor all surfaces and applications, and is easy tomove around the jobsite.Off-RoadRunning Gear300909 Gas/LP,with inner tubes300910 Gas/LP,with Never Flat tiresIncludes fourheavy-duty 15-inch tires and a rugged handleto provide maximum maneuverability.Protective Cagewith Cable Holders300921 Gas/LPRugged cage withcable holdersprotects yourinvestment. Can beused with running gear, gas cylinder mountingassembly, LP tank mounting assembly, orwith trailer.Off-Road RunningGear withProtective Cageand Never FlatTires300912 Gas/LPRunning gear andrugged cage withcable holders protects your investment and iseasy to move around the jobsite.Gas CylinderMounting Assembly300918 GasDesigned for use withmulti-terrain runninggear, protective cage,or by itself. Includesbase tray with bottlebracket, vertical support rack and safety chain.6Note: Not for use with LP tank mounting assembly.Not recommended for use with protective cover.Hose and LP TankMounting Assembly300917 LPDesigned for use withmulti-terrain runninggear, protective cage,or by itself. Includesbracket and clamp tomount 33- and 43-pound tanks horizontally, andhose with fittings to converter.Note: Not for use with gas cylinder mounting assembly.Not recommended for use with protective cover.Protective Covers300919 For gasmodels withoutprotective cage orrunning gear (shown)300920 For gasmodels withprotective cageand/or running gearHeavy-duty, water-resistant and mildewresistant covers protect and maintain the finishof the welder.

Genuine Miller Accessories (Continued) MIG/Flux-cored WeldingSGA 100C Control 043857SGA with contactor required to connectSpoolmate 3035 to CV engine drive. Includes10-foot (3 m) 115 V power cable and plug,6-foot (1.8 m) interconnecting cable, and 5-foot(1.5 m) gas hose.Heavy-Duty Barrel for Spoolmate 3035195375Use for demanding applications, rated at 200 A,60 percent duty cycle.Millermatic 141 and 211 shown.Millermatic 141 907612See literature DC/12.42Millermatic 211 907614See literature DC/12.58Millermatic 212 Auto-Set 907405See literature DC/12.46The Millermatic line of MIG welders are completearc welding power source, wire feeder and gunpackages designed for portability and ease of use.Note: The Millermatic machines can be operatedutilizing auxiliary power.Stick (SMAW) WeldingWeld Leads2/0 Stick Cable Set, 50 ft. (15 m) 173851Consists of 50-foot (15 m) 2/0 electrode cablewith holder, and 50-foot (15 m) work cable withclamp. 350 A, 100% duty cycle.2/0 Stick Cable Set, 100/50 ft. (30.5/15 m)043952Consists of 100-foot (30.5 m) 2/0 electrodecable with holder, and 50-foot (15 m) workcable with clamp. 300 A, 100% duty cycle.Plasma CuttingSpectrum 375 X-TREME and 625 X-TREME shown.Spectrum 375 X-TREME 907529See literature PC/9.2.Spectrum 625 X-TREME 907579See literature PC/9.6.Spectrum 875 907583See literature PC/9.8.The Spectrum 375 X-TREME and 625 X-TREMEcome complete with protective X-CASE (not shown).Trailers and HitchesTIG (GTAW) WeldingSuitCase X-TREME 8VS Wire Feeder951582SuitCase X-TREME 12VS Wire Feeder951543Lightweight, voltage-sensing wire feedersinclude secondary contactor, gas valve,drive roll kit and Bernard BTB Gun 300 A.See literature M/6.42.Dynasty 210 SeriesFor portableAC/DC TIG.See literatureAD/4.81.Multiprocess WeldingNote: Trailer is shipped unassembled.Spoolmatic 30ASpool Gun 130831Air-cooled, 200-amp,one-pound spool gunfor aluminum MIG.See literature M/1.73.Requires WC-115A control (137546011).Spoolmate 3035Spool Gun 195016Use with SGA 100Ccontrol and heavyduty barrel. Spool gunfor aluminum andother wires. Four-inch spools; .023–.035 inch(0.6–0.9 mm) aluminum, steel and stainlesssteel. Rated at 150 amps, 60 percent duty cyclewith 20-foot (6 m) cable assembly.HWY-Mid Frame Trailer 3014381,424-pound (646 kg) capacity highway trailerwith welded steel tubing frame, heavy-duty axlewith roller bearing hubs and leaf-springsuspension. Includes jack stand, fenders, lights,and dual hitch with 2-inch (50 mm) ball hitchand 3-inch (76 mm) lunette eye.Cable Tree 043826Provides an area toconveniently wrap weldcables and extension cords.Multimatic 200 907518Portable, all-in-one multiprocess package weighsonly 29 pounds (13.2 kg), and features excellentarc characteristics. Exclusive multi-voltage plug(MVP ) provides flexibility to plug into 120- or240-volt power. Take it anywhere you need toMIG, TIG or stick weld. See literature DC/12.57.2-In-1 Document/Fire Extinguisher Holder301236Stores documents and holds afive-pound fire extinguisher.Note: Holder shown mountedon trailer. Fire extinguisher notincluded.7

Ordering InformationEquipment and OptionsStock No.DescriptionBobcat 225907498001907498Kohler engine, base modelKohler engine with GFCI receptaclesBobcat 250907500001907500907500002Kohler engine, base modelKohler engine with GFCI receptaclesKohler engine with electric fuel pumpBobcat 250 EFI907502Kohler engine, base modelBobcat 250 LP907504Kohler engine with GFCI receptacles Qty.Field Options Options listed below can be added to the above packages. Installation is required.GFCI Receptacles300975Electric Fuel Pump300976Spark Arrestor300924Remote Oil Drain and Filter Kit300923Full KVA Adapter Cord300517Full KVA Plug119172Recommended for gas engine operations at altitudes above 5,000 feetFront mount for KohlerSee page 6. Order from Miller Service PartsEngine Tune-Up KitsAccessoriesOff-Road Running Gear300909300910Gas/LP models, with inner tubesGas/LP models, with Never Flat tiresOff-Road Running Gear with Protective Cage300912Gas/LP models, with Never Flat tires.Multi-Terrain Running Gear

Kohler CH730, 3-year warranty Kohler ECH730, 3-year warranty Horsepower (HP) Gas: 23.5 hp at 3,600 rpm LP: 21 hp at 3,600 rpm 23 hp at 3,600 rpm Weld Speed 3,600 rpm Idle Speed 2,300 rpm Type Twin-cylinder, four-cycle overhead valve, industrial air-cooled, gasoline* (carburetor or EFI) or LP** Fuel Capacity 12 gal. (45 L) Standard Shutdowns Low .

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