r55-7a rev0 (08.02)03pdf (page 1) hyundai models/excavators/r55-7a.pdf · a full view front window...

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www.hyundai-ce.com 2008. 03 Rev 0.

Dimensions

Working Ranges

Optional Equipment

Standard EquipmentISO standard cabin·Cabin ROPS(ISO 3471)

FOPS(ISO 3449)TOPS(ISO 12117)

·All-weather steel cab with all-aroundvisibility·Safety glass windows·Sliding fold-in front window·Sliding side window·Lockable door·Accessory box & Ash-trayHeater & DefrosterCentralized monitoring·Engine speed·Gauges

Fuel level gaugeEngine coolant temperature gauge

·WarningFuel levelEngine oil pressureEngine coolant temperature Hyd. oil temperatureLow batteryAir cleaner closing

·Fuel prefilter

Door and cab locks, one keyAM/FM radio and cassette Two outside rear view mirrorsFully adjustable suspension seat with seat beltConsole box tilting system(LH.)Four front working lightsElectric hornBattery (1 x 12 V x 100 AH)Battery master switch12 volt power supply(DC-DC converter)Removable clean out screen for radiatorAutomatic swing brakeRemovable reservoir tankWater separator, fuel lineCounterweight (210 kg, 460 lb)Mono boom (3.0 m, 9’10”)Arm (1.6 m, 5’ 3”)Track shoes (400 mm, 15.7”)Track rail guard

Air-conditioner(4000 kcal/hr, 16000BTU/hr)Fuel filler pump(35ℓ/min, 9.2 US gpm)Beacon lampPiping kit ( breaker, etc)Double acting piping kit(clamshell, etc)Accumulator, work equipment loweringElectric transducerTravel alarm

Quick couplerRubber crawler (400mm, 16”)Narrow bucket(0.07m3, 0.09yd3)Arm (1.9m)Tool kitOperator suitMechanical suspension seat with heater

Standard and optional equipment may vary. Contact your Hyundai dealer for more information. The machine shown may vary according to International standards.All US measurement are rounded off to nearest pound or inche.

A Max. digging reach A' Max. digging reach

at groundB Max. digging depthB' Max. digging depth

(8ft level)

C Max. vertical walldigging depth

D Max. digging heightE Max. dumping heightF Min. front radius

Boom length 3,000 mm(9' 10")※1,600 mm(5' 3") 1,900 mm(6' 3")

6,400 mm(21' 0")

6,270 mm(20' 7")

4,060 mm(13' 4")

3,700 mm(12' 2")

3,460 mm(11' 4")

5,920 mm(19' 5")4,180 mm(13' 9")2,360 mm( 7' 9")

6,150 mm(20' 2")

6,010 mm(19' 9")

3,820 mm(12' 6")

3,420 mm(11' 3")

3,200 mm(10' 6")

5,780 mm(18' 12")4,050 mm(13' 3")2,350 mm( 7' 9")

Arm length

Unit (mm)

55-7A

Some of the Photo may include optional equipment.

MINI CRAWLER EXCAVATOR Applied Tier 3 Engine

Robex 55-7A

Hyundai Robex 55-7AMaximized Workability

Comfortable Operating Environment

Advanced Hydraulic System

Enhanced Durability & Reliability

Improved Fuel Efficiency

HYUNDAI CONSTRUCTION EQUIPMENT 02 / 03

Hyundai Robex 55-7A


The Highest Engine Power in its Class

Yanmar 4TNV98-EPHYB engine provides 20.5 kgf.m (148 lbf.ft) ofmaximum torque with 57 HP at 2,400rpm of rated power. This means the R55-7A runs with the most power in its class,giving you more power to get the job done.

57 HP / 2,400 rpm

YANMAR 4TNV98-EPHYB

Robex 55-7A


Technology in Cab Design

Wide Comfortable Operating SpaceAll the controls are designed and positioned according to the latest ergonomic research. Reinforced pillars have also been added for greater cab rigidity.


Wide Cab with Excellent VisibilityThe cab is roomy and ergonomicallydesigned with low noise level and goodvisibility.A full view front window and large rear andside windows provide excellent visibility inall directions.

Sliding Side WindowThe sliding side window provides moreconvenience for the operator without havingto opening the door.

High-output Air Conditioner & HeaterLarge capacity air conditioning system isinstalled for operator’s comfort in all climate.For more convenience, the cab is equippedwith defroster for the cold seasons.

Big Sized Sun Visor & Top GlassThe big sun visor and top glass are installedon the top of the front window to block directsunlight and increase operator’s visibility.

Top Glass : Bronze color and laminated glass

Sensitive Joystick and Easy Entrance

755mm

New joystick grips for precise control havebeen equipped with 4 switches.Tilting tower combined with large doorprovides more space for gateway.

Rise-up WiperRise-up wiper gives better front view tooperator.

Smooth Travel Pedals and Foot RestsTravel pedals and levers are equipped withergonomically designed foot rests. Itenables the operator to work easily andquickly.

Easy to Open Front WindowSliding fold-in front window is easily openedand safely maintained in open position toimprove the working condition.

Breaker/DummyRight

Horn/DummyLeft

Reliable Instrument Panel

Reliable Instrument Panel

All information from the devices such as engine RPM,engine water temp., fuel status and the state of all typesof electric switches provide the operator with an exact condition of machine. These features make troubleshooting much easier.

M MODE : High power

Radio & Cassette PlayerDeluxe radio & cassette player arelocated at convenient position.

Dial Type Engine Speed Switch andKey Switch

Unparalleled Technology of R55-7A.It will fulfill your dreamsUnparalleled Technology of R55-7A.It will fulfill your dreams


Robex 55-7A

Strong and Stable Lower FrameReinforced box-section frameis all welded with low-stressand high-strength steel.


Robex 55-7A


Powerful and Dynamic Work


Exceptional Traction &Lifting CapacityThe considerable traction and liftingcapacity enable all work to be done quickly.

Anti Restart SystemThe new system protects the starter from re-starting during engine operation, even if theoperator accidentally turns the start keyagain.

Reinforced BucketThe design includes bucket link durabilityand anti-wear characteristics withadditional reinforcement plates on cuttingedge section. Reinforced bucket is madewith thicker steel and additional lateral plate.

Easy-to-Reach Control PanelsSwitches and other essential controls arelocated near the operator. This helps keep operator move-ment to aminimum, enhancing control with lessoperator fatigue.

Reinforced ArmReinforcements are welded to protect thearm from impacts and wear.

Installation for Breaker OperationOverload relief value and pipes are installedas standard for customer’s convenience.

Gradeability35 degree(70%) of high gradeability and longtumbler distance may be easier to work atslope area.

Offset Boom SwingThe R55-7A is designed for efficient work incongested residential and urban areas. Theboom can be offset within a range of 130degrees.

Robex 55-7A


Performance and Durability


Arrangement Between Bucket andBlade

Attachment is designed to minimize deadspace between bucket and blade forefficient grading work.

Steel Tube Frame CabinStrong cabin structure protects the operatoragainst falling objects, improves operator’ssafety with seat-belt in the event of roll-over.(ROPS, FOPS, TOPS STD.)

Powerful Dozer BladeLarge size blade improves work efficiencyand equipment durability .

Boom Cylinder CoverBoom cylinder cover is installed as standardto prevent cylinder damage.

FEM(Finite Element Method)Durability of structure is proven throughFEM(Finite Element Method) analysis andlong term durability test.

Applied Side ProtectorWhen the machine turns, the side protectorprevents any damage to engine hood.

Tough, Durable UndercarriageThe R55-7A has an undercarriageconstructed with tough, durable, robotically-welded steel. Tapered, upper roller sidesupports were installed to keep tracksproperly aligned at all times.

Large Capacity RadiatorTo improve the performance in oveload orcontinual work, large capacity radiator wasinstalled.

Robex 55-7A


Reliability and Serviceability


Full open doors and master key systemprovide easy access for servicing.

Easy Change of Air CleanerThe R55-7A is fitted with durable plastic aircleaner for easy maintenance and quickservice.

Centralized Fuse BoxFuse box is arranged on the rear of seat foreasy service.

Easy to Fill up with Fuel (Option)The Fuel filler pump provide easy filling offuel tank from other tanks by electric device.

Large Capacity Fuel TankThe large capacity of fuel tank provideslonger working time.

High Capacity Prefilter & Fuel FilterTo protect the injection system and minimizethe risk of fuel breakdown, high capacity fuelfilter and prefilter are applied for durability.

Battery Master SwitchThe battery master switch enables checkingand maintaining the battery while minimizingthe discharge of battery.

Centralized Grease FittingsGrease fittings are highlighted andcentralized for fast access when doing yourservice checks. Save time and money duringroutine maintenance.

Smooth and precise swing controlShock absorbing design is more improved tostop and start swing precisely and smoothly.

Easy to Maintain Engine Components

Long Life Hydraulic Filter

The R55-7A is designed with accessibility in mind. All doors,covers and hoods are built for complete open access. You’ll findthat the R55-7A offers plenty of space to complete your regularmaintenance and service hassle-free.

Uses high-performance filteringmaterials are applied for extending thefilter replacement interval.


Specifications

Engine Buckets

Lifting Capacities R55-7A

Controls

Coolant & Lubricant Capacity

Operating Weight (approximate)

Hydraulic System

Drives & Brakes

Swing System

Model

Type

SAEJ1995 (gross)J1349 (net)6271/1 (gross)6271/1 (net)

57 HP (42.5 kW) at 2,400 rpm55.2 HP (41.2 kW) at 2,400 rpm57.8 PS (42.5 kW) at 2,400 rpm56 PS (41.2 kW) at 2,400 rpm20.5 kgf.m (148 lbf.ft) at 1,550 rpm98 mm (38.6") x 110 mm (4.33")3,319 cc (203 cu in)1 x 12 V x 100 AH12V-3.0 kW12V-80 A

DIN

Max. torque

Two variable displacement piston pumps2 x 55.2ℓ/min(14.5 US gpm/12 UK gpm)pumpsGear pump

Two speed axial piston motor with counterbalance valve and parking brake

TypeRated flowSub-pump for pilot circuit

Travel

Axial piston motor with automatic brakeSwing

220 kgf/cm2 (3,130 psi)Implement circuits220 kgf/cm2 (3,130 psi)Travel circuit220 kgf/cm2 (3,060 psi)Swing circuit30 kgf/cm2 ( 430 psi)Pilot circuitInstalledService valve

Boom : 1 - 110 x 65 x 715 mm (4.3" x 2.6" x 28.1")1 - 90 x 55 x 850 mm (3.5" x 2.2" x 33.5")1 - 80 x 50 x 660 mm (3.1" x 2.0" x 26.0")1 - 95 x 50 x 527 mm (3.7" x 2.0" x 20.7")1 - 110 x 60 x 214 mm (4.3" x 2.4" x 8.4")

Arm :Bucket :Boom swing :Dozer blade :

No. of cylinder-bore x rod x stroke

Pilot pressure-operated joysticks and pedals provide almost effortless and fatigueless operation.

* : Standard digging bucket : Applicable for materials with density 1,600 kg/m3 (2,700 lb/yd3) or less ▲ : Applicable for materials with density 1,100 kg/m3 (1,850 lb/yd3) or less

0.07 m3 (0.09 yd3)SAE heaped

Operating weight, including 3,000 mm (9' 10") boom, 1,600 mm (5'3") arm, SAE heaped 0.18 m3 (0.24 yd3) digging bucket, lubricant, coolant, full fuel tank, hydraulic tank and the standard equipment.

Bore x strokeDisplacementBatteryStarter motorAlternator

Rated flywheel horse power

Water cooled, 4 cycle diesel 4 cylinders in line, direct injection, low emission

YANMAR 4TNV98-EPHYB Capacity

SAEheaped

0.07 m3 (0.09 yd3)

* 0.18 m3 (0.24 yd3)0.06 m3 (0.08 yd3)0.15 m3 (0.20 yd3)

LengthWeight

SAE

ISO

SAE

ISO

* 1,600 mm (5' 3") 210 kg (460 lb)

37.7 kN3,850 kgf8,490 lbf42.4 kN

4,330 kgf9,550 lbf28.4 kN

2,900 kgf6,390 lbf31.9 kN

3,260 kgf7,190 lbf

1,900 mm (6' 3") 230 kg (510 lb)

37.7 kN3,850 kgf8,490 lbf42.4 kN

4,330 kgf9,550 lbf25.5 kN

2,600 kgf5,730 lbf28.7 kN

2,930 kgf6,460 lbf

315 mm(12.4")670 mm(26.3")

360 mm(14.2")735 mm(29.0")

84 kg(185 lb)137 kg(300 lb)

CECEheaped

WidthWeight

3.0m (9' 10") Boom

Withoutside cutters

Withside cutters 1.6m (5'3") arm

Pilot controlTwo joysticks with one safety lever(LH): Boom Swing and arm, (RH): Boom and bucket(ISO)

Traveling and steering Two levers with pedalsExternal Lights Two lights mounted on the boom one below the cab

Main pump

Hydraulic motors

Relief valve setting

Hydraulic cylinders

Full hydrostatic typeAxial piston motor, in-shoe designPlanetary reduction gear5,300 kgf (11,700 lbf)4.1 km/hr (2.5 mph) / 2.2 km/hr (1.4 mph)35。(70%)Multi-wet disc

Drive motorReduction systemMax. drawbar pullMax. travel speed(high) / (low)GradeabilityParking brake

Drive method

Axial piston motorPlanetary gear reductionMulti wet disc9.3 rpm

Swing motorSwing reductionSwing brakeSwing speed

(Refilling) liter US gal UK gal Fuel tankEngine coolant Engine oilSwing device-gear oilFinal drive(each)Hydraulic tank Hydraulic system

120.010.011.61.51.270.0120.0

31.72.63.10.40.318.531.7

26.42.22.60.30.215.426.4

Undercarriage

X-leg type center frame is integrally welded with reinforced box-section trackframes. The undercarriage includes lubricate rollers, track adjusters with shockabsorbing springs and sprockets, and track chain with triple grouser shoes.

Center frameTrack frameNo. of shoes on each sideNo. of carrier roller on each sideNo. of track roller on each side

X - leg typePentagonal box type4015

Upper structureCounterweightMono boom(with arm cylinder)

2,650 kg ( 5,840 lb)200 kg ( 440 lb)310 kg ( 680 lb)

Major component weight

Operating weight kg(lb)

·Mono boom with blade

NOTES 1. Lifting capacity is based on SAE J1097, ISO 10567.2. Lifting capacity of the Robex Series does not exceed 75% of tipping load

with the machine on firm, level ground or 87% of full hydraulic capacity.

3. The load point is a hook (standard equipment) located on the back of the bucket.4. (*) indicates load limited by hydraulic capacity.

5,700 (12,570)Operating Weight

Arm

Bucket diggingforce

Arm crowdforce

·Boom : 3.0m (9’ 10”) ·Arm : 1.9 m (6’ 3”) ·Bucket : 0.18m3 (0.24yd3) SAE heaped ·Dozer blade down with 200kg (440 lb) counterweight.

5.0m(16.40ft)

Load radius At max. reach2.0m(5ft) 3.0m(10ft) 4.0m(13.12ft) 5.0m(16.40ft) Capacity Reach

4.0m(13.12ft)

3.0m(10ft)2.0m(5ft)1.0m(5ft)

GroundLine

-1.0m(-5ft)-2.0m(-5ft)-3.0m(-10ft)

kglbkglbkglbkglbkglbkglbkglbkglbkglb

*2090*4610*2320*5110*3260*7190*4150*9150*2770*6110

*2090*4610*2320*51102720600027606080*2770*6110

*1450*3200*2170*4780216047602120467021304700*1650*3640

*1450*32001510333014303150140030901400309014603220

*950*2090*1200*265014303150138030401350298013603000

*950*2090103022709802160930205091020109102010

*1000*2200103022701000220098021609702140

73016107101570680150066014606501430

*870*1920*900*19808101790750165073016107701700860190011202470

*870*19206501430550121050011004901080510112058012807601680

4.56(15.0)

m(ft)

5.89(19.3)6.12

(20.1)6.13

(20.1)5.92

(19.4)5.46

(17.9)4.65

(15.3)

Load pointheightm(ft)

Rating over-side or 360 degreeRating over-front

·Boom : 3.0m (9’ 10”) ·Arm : 1.9 m (6’ 3”) ·Bucket : 0.18m3 (0.24yd3) SAE heaped ·Dozer blade down with 200kg (440 lb) counterweight.

5.0m(16.40ft)

Load radius At max. reach2.0m(5ft) 3.0m(10ft) 4.0m(13.12ft) 5.0m(16.40ft) Capacity Reach

4.0m(13.12ft)

3.0m(10ft)2.0m(5ft)1.0m(5ft)

GroundLine

-1.0m(-5ft)-2.0m(-5ft)-3.0m(-10ft)

kglbkglbkglbkglbkglbkglbkglbkglbkglb

*3060*6750

*2340*5160*3600*7940*3780*8330*2060*4540

*3060*6750

*2340*51602760608028006170*2060*4540

*1690*373022304920216047602140472021604760

1610355014903280143031501410311014303150

*1020*2250*1090*2400*1330*2930142031301380304013603000

*1020*22501070236010202250970214093020509202030

10302270100022009902180

710157068015006701480

*950*2090*980*216088019408101790790174084018509602120*1150*2540

*950*20907301610600132055012105401190560123065014309001980

4.12(13.5)

m(ft)

5.07(16.6)5.59

(18.3)5.83

(19.1)5.84

(19.2)5.62

(18.4)5.13

(16.8)4.22

(13.8)

Load pointheightm(ft)

* 0.18 m3 (0.24 yd3)

r55-7a rev0 (08.02)03pdf (page 1) hyundai models/excavators/r55-7a.pdf · a full view front window...

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