R 55-7 A Hyundai excavator specs & dimensions (2008 - 2010)

Model rating: 9,00 / 10

Hyundai R 55-7 A is a mini excavator manufactured from 2008 to 2010, with a weight of 5.5 tons. It features a track width of 400 m…

Hyundai R 55-7 A is a mini excavator manufactured from 2008 to 2010, with a weight of 5.5 tons. It features a track width of 400 mm, a transport length of 5.9 meters, a transport width of 1.92 meters, and a transport height of 2.55 meters. The bucket width is 0.705 meters, with a bucket capacity ranging from 0.07 to 0.18 cubic meters. Special equipment includes a blade and rubber track.

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R 55-7 A

Years of manufacture: 2008—2010

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Technical specs - R 55-7 A Hyundai

Specification

Notice: Every data listed is verified by LECTURA Specs team experts. However, incomplete data and mistakes might occur. Contact our team with any change suggestion.

Weight: 5.5 t

Transport length: 5.9 m

Transport width: 1.92 m

Transport height: 2.55 m

Bucket capacity min.: 0.07 m³

Bucket capacity max.: 0.18 m³

Bucket width: 0.705 m

Track width: 400 mm

Driver protection: KbR

Max. Reach horizontal: 6.4 m

Dredging depth: 3.5 m

Tear-out force: 28.4 kN

Model series: 7A

Engine manuf.: Yanmar

Engine type: 4TNV98

Engine power: 43 kW

Displacement: 3.3 l

Revolutions at max torque: 2100 rpm

More technical details, like: bucket capacity, standard tyres, dimension lxwxh, max. torque, no. of cylinders, cylinder bore x stroke, emission level are available in the full technical specs.

Basic model with standard bucket

Special equipment

Track adjustment: No
Rubber track: Yes
Blade: Yes
Aircondition: No
Quick hitch hydr.: No
Quick hitch mech.: No

Download datasheets (PDF)

R 55-7 A Hyundai Specification for North America (EN)

Hyundai R 55-7 A FAQ

When was the Hyundai R 55-7 A manufactured?

The Hyundai R 55-7 A was manufactured from 2008 to 2010.

How much does the Hyundai R 55-7 A weigh?

The Hyundai R 55-7 A weighs 5.5 tons.

What are the transport dimensions of the Hyundai R 55-7 A mini excavator?

The Hyundai R 55-7 A has a transport length of 5.9 meters, a transport width of 1.92 meters, and a transport height of 2.55 meters.

What is the track width of the Hyundai R 55-7 A mini excavator?

The Hyundai R 55-7 A mini excavator has a track width of 400 mm.

What are the excavation performance specifications of the Hyundai R 55-7 A mini excavator?

The Hyundai R 55-7 A mini excavator has a dredging depth of 3.5 meters and a maximum horizontal reach of 6.4 meters.

What is the tear-out force of the Hyundai R 55-7 A mini excavator?

The Hyundai R 55-7 A mini excavator has a tear-out force of 28.4 kN.

What are the bucket specifications of the Hyundai R 55-7 A mini excavator?

The Hyundai R 55-7 A mini excavator has a bucket width of 0.705 meters, with a maximum bucket capacity of 0.18 cubic meters and a minimum bucket capacity of 0.07 cubic meters.

What operator safety and support features does the Hyundai R 55-7 A have?

The Hyundai R 55-7 A is equipped with a cabin that includes ROPS for driver protection.

How much is a Hyundai R 55-7 A Mini excavator (2008u20132010) worth?

The residual value of the Hyundai R 55-7 A depends on the machine's individual parameters. Visit the LECTURA Valuation to check it.

Reviews

Model rating: 9,00 / 10

Hyundai R 55-7 A user from Australia

Had no major problems

Hyundai R 55-7 A user from United States

Very good machine for the size

Hyundai R 55-7 A overview

Hyundai R 55-7 A features overview

High-output Air Conditioner & Heater
A large capacity air conditioning system is installed for operator comfort in any climate. To provide more convenience, the cabin is equipped with defrosters for cold seasons.
Smooth Travel Pedals and Foot Rests
The travel pedals and levers are equipped with ergonomically designed foot rests. They enable the operator to work easily and quickly.
Exceptional Traction &Lifting Capacity
The considerable traction and lifting force enables all jobs to be completed quickly.
Anti Restart System
The new system protects the starter from a restart during engine operation, even if the operator accidentally turns the starting button again.
Installation for Breaker Operation
Overload relief value and pipes are installed as standard for customer comfort.
Large Capacity Radiator
To improve performance at Oveload or continuous work, a large-capacity radiator has been installed.

Engine / Driveline and transmission

The Highest Engine Power in its Class YANMAR 4TNV98-EPHYB 57 HP / 2,400 rpm
Yanmar 4TNV98-EPHYB engine offers 20,5 kgf.m (148 lbf.ft) maximum torque with 57 hp at 2,400rpm rated output. This means the R55-7A runs with the greatest performance in its class giving you more power to get the job done.
Reliable Instrument Panel
All information from equipment such as engine rpm, engine water temperature, fuel status and the condition of all types of electrical switches supply the operator with an exact state of machine. These features greatly facilitate troubleshooting. M MODE : High power
Easy to Fill up with Fuel (Option)
The fuel filler pump provides easy filling of the fuel tank from other tanks by electric implement.
High Capacity Prefilter & Fuel Filter
High performance fuel filters and pre-filters are applied for durability to protect the injection system and minimise the risk of a fuel breakout.

Hydraulics

Hyundai Robex 55-7A Hyundai Robex 55-7A
Maximized workability Comfortable operating environment Advanced hydraulic system Improved durability & reliability Improved fuel efficiency Some of the photo may include optional equipment.
Gradeability
35 degree(70%) high grading and long tumbler spacing can be easier to work on the slope area.
Offset Boom Swing
The R55-7A is designed for efficient work in congested residential and urban areas. The boom can be offset within a range of 130 degrees.
Long Life Hydraulic Filter
High performance filter materials are used to extend the filter change interval. Some of the photos may include optional equipment.

Tyres / Tracks

Tough, Durable Undercarriage
The R55-7A features a undercarriage made of robust, durable, robotically welded steel. To keep the tracks properly aligned at all times tapered, top roller side rests have been installed.

Dimensions and weight

Load point	Load radius		At max. reach
2.0m(5ft)	3.0m(10ft)	4.0m(13.12ft)	5.0m(16.40ft)	Capacity	Reach
	height m(ft)											m (ft)
5.0m (16.40ft)	kg lb									950 2090		950 2090	4.12 (13.5)
4.0m	kg					*1020	*1020			*980	730	5.07
(13.12ft)	lb					*2250	*2250			*2160		1610	(16.6)
3.0m	kg					*1090	1070			880		600	5.59
(10ft)	lb					*2400	2360			1940		1320	(18.3)
2.0m	kg	*3060	*3060	*1690	1610	*1330	1020	1030	710	810		550	5.83
(5ft)	lb	*6750	*6750	*3730	3550	*2930	2250	2270	1570	1790		1210	(19.1)
1.0m	kg			2230	1490	1420	970	1000	680	790	540	5.84
(5ft)	lb			4920	3280	3130	2140	2200	1500	1740	1190	(19.2)
Ground	kg	*2340	*2340	2160	1430	1380	930	990	670	840	560	5.62
Line	lb	*5160	*5160	4760	3150	3040	2050	2180	1480	1850	1230	(18.4)
-1.0m	kg	*3600	2760	2140	1410	1360	920			960	650	5.13
(-5ft)	lb	*7940	6080	4720	3110	3000	2030			2120		1430	(16.8)
-2.0m	kg	*3780	2800	2160	1430					*1150		900	4.22
(-5ft)	lb	*8330	6170	4760	3150					*2540		1980	(13.8)
-3.0m	kg	*2060	*2060
(-10ft)	lb	*4540	*4540

Load point	Load radius		At max. reach
2.0m(5ft)	3.0m(10ft)	4.0m(13.12ft)	5.0m(16.40ft)	Capacity	Reach
height m(ft)												m (ft)
5.0m	kg									*870		*870	4.56
(16.40ft)	lb									*1920		*1920	(15.0)
4.0m	kg									*900		650	5.89
(13.12ft)	lb									*1980		1430	(19.3)
3.0m		kg					*950	*950	*1000	730	810		550	6.12
(10ft)		lb					*2090	*2090	*2200	1610	1790		1210	(20.1)
2.0m		kg			*1450	*1450	*1200	1030	1030	710	750		500	6.13
(5ft)		lb			*3200	*3200	*2650	2270	2270	1570	1650		1100	(20.1)
1.0m		kg	*2090	*2090	*2170	1510	1430	980	1000	680	730		490	5.92
(5ft)		lb	*4610	*4610	*4780	3330	3150	2160	2200	1500	1610		1080	(19.4)
Ground		kg	*2320	*2320	2160	1430	1380	930	980	660	770		510	5.46
Line		lb	*5110	*5110	4760	3150	3040	2050	2160	1460	1700		1120	(17.9)
-1.0m		kg	*3260	2720	2120	1400	1350	910	970	650	860		580	4.65
(-5ft)		lb	*7190	6000	4670	3090	2980	2010	2140	1430	1900		1280	(15.3)
-2.0m		kg	*4150	2760	2130	1400	1360	910			1120		760
(-5ft)		lb	*9150	6080	4700	3090	3000	2010			2470		1680
-3.0m		kg	*2770	*2770	*1650	1460
(-10ft)		lb	*6110	*6110	*3640	3220

Major component weight
Upper structure	2	650 kg ( 5	840 lb)"
Counterweight	200 kg ( 440 lb)
Mono boom(with arm cylinder)	310 kg ( 680 lb)

Operating Weight
Operating weight kg(lb)	5	700 (12	570)"

Other features

Wide Comfortable Operating Space
All 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 Visibility
The cab is spacious and ergonomically designed with low noise levels and good visibility. A full-view front window as well as large rear and side windows provide excellent visibility in all directions.
Sliding Side Window
The sliding side window provides greater comfort for the operator without having to open the door.
Easy to Open Front Window
The front sliding folding window is opened easily and maintained safely in an open position to improve working condition.

Robex 55-7A Unparallelled Technology of R55-7A. Unparallelled Technology of R55-7A. It fills your dreams you fulfill your dreams
Arrangement Between Bucket and
Attachment is designed to minimise dead space between bucket and blade for efficient grading work.
Easy to Maintain Engine Components
The R55-7A is designed with accessibility. All doors, covers and hoods are built for full open access. You will find out that the R55-7A offers plenty of room to easily complete your regular maintenance and service effort.
Easy Change of Air Cleaner
The R55-7A is equipped with durable plastic air cleaner for easy maintenance and fast service.
Centralized Fuse Box
The fuse box is arranged on the back of the seat for easy service.

Safety

Steel Tube Frame Cabin
Strong cab structure protects the operator from falling objects, improves operator safety with seat belt in case of roll over. (ROPS, FOPS, TOPS STD.)

Tables

Boom length	3	000 mm(9' 10"")"
Arm length,"※1,600 mm(5' 3"")	1,900 mm(6' 3"")"
A Max. digging reach,"6,150 mm(20' 2"")	6,400 mm(21' 0"")"
A' Max. digging reach at ground,"6,010 mm(19' 9"")	6,270 mm(20' 7"")"
B Max. digging depth,"3,820 mm(12' 6"")	4,060 mm(13' 4"")"
B' Max. digging depth (8ft level),"3,420 mm(11' 3"")	3,700 mm(12' 2"")"
C Max. vertical wall digging depth,"3,200 mm(10' 6"")	3,460 mm(11' 4"")"
D Max. digging height,"5,780 mm(18' 12"")	5,920 mm(19' 5"")"
E Max. dumping height,"4,050 mm(13' 3"")	4,180 mm(13' 9"")"
F Min. front radius,"2,350 mm( 7' 9"")	2,360 mm( 7' 9"")"

(Refilling)	liter	US gal	UK gal
Fuel tank	120.0	31.7	26.4
Engine coolant	10.0	2.6	2.2
Engine oil	11.6	3.1	2.6
Swing device-gear oil	1.5	0.4	0.3
Final drive(each)	1.2	0.3	0.2
Hydraulic tank	70.0	18.5	15.4
Hydraulic system	120.0	31.7	26.4

Drive method	Full hydrostatic type
Drive motor	Axial piston motor	in-shoe design"
Reduction system	Planetary reduction gear
Max. drawbar pull	5	300 kgf (11	700 lbf)"
Max. travel speed(high) / (low)	4.1 km/hr (2.5 mph) / 2.2 km/hr (1.4 mph)
Gradeability	35。(70%)
Parking brake	Multi-wet disc

Pilot control	Two joysticks with one safety lever (LH): Boom Swing and arm	(RH): Boom and bucket(ISO)"
Traveling and steering	Two levers with pedals
External Lights	Two lights mounted on the boom one below the cab

Arm,Length,"* 1,600 mm (5' 3"")	1,900 mm (6' 3"")"
Weight	210 kg (460 lb)	230 kg (510 lb)
Bucket digging force		37.7 kN	37.7 kN
SAE,"3,850 kgf	3,850 kgf"
8,490 lbf	8,490 lbf"
	42.4 kN	42.4 kN
ISO,"4,330 kgf	4,330 kgf"
9,550 lbf	9,550 lbf"
Arm crowd force	SAE	28.4 kN	25.5 kN
2,900 kgf	2,600 kgf"
6,390 lbf	5,730 lbf"
	31.9 kN	28.7 kN
ISO,"3,260 kgf	2,930 kgf"
7,190 lbf	6,460 lbf"

Center frame	X - leg type
Track frame	Pentagonal box type
No. of shoes on each side	40
No. of carrier roller on each side	1
No. of track roller on each side	5

Swing motor	Axial piston motor
Swing reduction	Planetary gear reduction
Swing brake	Multi wet disc
Swing speed	9.3 rpm

Capacity	Width	Weight	3.0m (9' 10"") Boom"
SAE heaped	CECE heaped	Without side cutters	With side cutters	1.6m (5'3"") arm"
0.07 m3 (0.09 yd3 ),0.06 m3 (0.08 yd3 ),"315 mm(12.4"")	360 mm(14.2"")",84 kg(185 lb),
* 0.18 m3 (0.24 yd3 ),0.15 m3 (0.20 yd3 ),"670 mm(26.3"")	735 mm(29.0"")",137 kg(300 lb),

Service valve	Installed
Hydraulic cylinders
No. of cylinder- bore x rod x stroke	Boom :	1 - 110 x 65 x 715 mm (4.3"" x 2.6"" x 28.1"")"
Arm :	1 - 90 x 55 x 850 mm (3.5"" x 2.2"" x 33.5"")"
Bucket :	1 - 80 x 50 x 660 mm (3.1"" x 2.0"" x 26.0"")"
Boom swing :	1 - 95 x 50 x 527 mm (3.7"" x 2.0"" x 20.7"")"
Dozer blade :	1 - 110 x 60 x 214 mm (4.3"" x 2.4"" x 8.4"")"

Model		YANMAR 4TNV98-EPHYB
Type		Water cooled	4 cycle diesel 4 cylinders in line	direct injection	low emission"
Rated flywheel horse power
SAE	J1995 (gross)	57 HP (42.5 kW) at 2	400 rpm"
J1349 (net)	55.2 HP (41.2 kW) at 2	400 rpm"
DIN	6271/1 (gross)	57.8 PS (42.5 kW) at 2	400 rpm"
6271/1 (net)	56 PS (41.2 kW) at 2	400 rpm"
Max. torque		20.5 kgf. m (148 lbf. ft) at 1	550 rpm"
Bore x stroke		98 mm (38.6"") x 110 mm (4.33"")"
Displacement		3	319 cc (203 cu in)"
Battery		1 x 12 V x 100 AH
Starter motor		12V-3.0 kW
Alternator		12V-80 A

Events

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SteinExpo 2026

Homberg/Nieder-Ofleiden, Germany

September 2 — 5

NordBau 2026

Holstenhallen Neumünster, Germany

September 9 — 13

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Transport length:: 5.9 m

Transport width:: 1.92 m

Transport height:: 2.55 m

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News

Construction News by LECTURA 15.07.2026