Kobelco SK 50 SRX 7 is a mini excavator manufactured since 2021, with a weight of 4.8 tons. It features a track width of 400 mm, a…
Kobelco SK 50 SRX 7 is a mini excavator manufactured since 2021, with a weight of 4.8 tons. It features a track width of 400 mm, a transport length of 5.28 meters, a transport width of 1.96 meters, and a transport height of 2.56 meters. The machine has a tear-out force of 20.9 kN, a dredging depth of 3.6 meters, and a maximum horizontal reach of 6 meters. The bucket capacity is 0.14 cubic meters. Special equipment includes air conditioning, a blade, a quick hitch hydraulic system, and rubber tracks.
More technical details, like: bucket capacity min., bucket capacity max., bucket width, standard tyres, model series, dimension lxwxh, cylinder bore x stroke are available in the full technical specs.
The Kobelco SK 50 SRX 7 was first produced in 2021.
How much does the Kobelco SK 50 SRX 7 weigh?
The Kobelco SK 50 SRX 7 weighs 4.81 tons.
What are the transport dimensions of the Kobelco SK 50 SRX 7 mini excavator?
The Kobelco SK 50 SRX 7 has a transport length of 5.28 meters, a transport width of 1.96 meters, and a transport height of 2.56 meters.
What is the track width of the Kobelco SK 50 SRX 7 mini excavator?
The Kobelco SK 50 SRX 7 mini excavator has a track width of 400 mm.
What are the excavation performance specifications of the Kobelco SK 50 SRX 7 mini excavator?
The Kobelco SK 50 SRX 7 mini excavator has a dredging depth of 3.6 meters and a maximum horizontal reach of 6 meters.
What power ratings are available for the Kobelco SK 50 SRX 7 mini excavator?
The source data does not provide power ratings for the Kobelco SK 50 SRX 7 mini excavator.
What is the bucket capacity of the Kobelco SK 50 SRX 7 mini excavator?
The Kobelco SK 50 SRX 7 mini excavator has a bucket capacity of 0.14 cubic meters.
What operator safety and support features does the Kobelco SK 50 SRX 7 have?
The Kobelco SK 50 SRX 7 is equipped with a cabin that includes ROPS for driver protection.
How much is a Kobelco SK 50 SRX 7 Mini excavator (2021u20132025) worth?
The residual value of the Kobelco SK 50 SRX 7 depends on the machine's individual parameters. Visit the LECTURA Valuation to check it.
Kobelco SK 50 SRX 7 overview
Kobelco SK 50 SRX 7 features overview
Air conditioner Additional ventilation vents provide smooth air flow in front of and behind the operator, directing Airflow to the window, improving dehumidification function of the defroster. Energy Conservation Mode The SK50SRX/SK58SRX adjusts the S mode, which allows less fuel consumption compared to H mode 26% (the SK58SRX only). Smoother operation The new hydraulic system improves levelling performance and makes it easier to level than on conventional machines when heavier attachments are installed. Integrated-Flow Pump System As soon as the machine starts digging, additional power is routed from the third pump (which otherwise drives the oscillating and dozer circuit) to the armshift and boom shift (raise) for multi-power. This ensures a quick and smooth arm and boom rise even under heavy loads. Only SK58SRX. SK50SRX does not guide any output of No.3 pump into the bucket. Left Travel Right Travel Digging Bucket Boom Swing Engine No.1 Pump No.2 Pump No.3 Pump EXPERIENCE A COMPETENT PERFORMANCE The new hydraulic system Compared to previous models, the new hydraulic system is significantly improved, making digging cycle time remarkably shorter. It achieves high performances without reducing speed even on heavy load or driving on an incline. By replacing travel motor and swing joint, travel speed is increased. Hill-climbing speed Faster by 10% (SK58SRX) (Compared to previous models) By replacing the spool, power loss is reduced resulting in higher digging and swing speeds.
Nonstop operation by indr EASY MAINTENANCE Easy daily maintenance that saves effort for inspection and cleaning. Indr+e The indr+e system of the sk50srx/sk58srx features an air intake at the front of the machine and below it has a air extraction. It works just like the Indr system on the machines of the sr series, but also directs the muffler exhaust gas underneath itself. Exhaust is further decelerated and cooled through the offset channel and then unloaded into the atmosphere. Easy access to component Inside the Cab Hour Meter Easy Access to Cooling Unit Air Conditioning Filter for External Air Capture Air conditioning filter for internal air circulation Manual Storage Box Easy Access to Engine Compartment The Indr filter has a high density mesh of 30 lines per inch designed to collect dust. OTHERS Auto deceleration Accelerator dial Energy conserver mode Engine start password N&B piping Rotation & N&B piping QH line Foot control (for N&B piping) PHC (for N&B piping) with hydraulic flow adjustment PHC (for rotation & N&B piping) with hydraulic flow adjustment Cab (ROPS/TOPS/OPG Level, Canopy (ROPS/TOPS/OPG Level, Front guard Top Guard Suspension seat (canoe: PVC / cab: fabric) Retractable seatbelt Air conditioning DAB+ Radio (FM/AM & AUX & USB & Bluetooth), and hands free phone) Multi-function colour display Cup holder Smartphone Holder LED Door light USB/AUX Port 12V socket Coat hook Emergency exit Hammer 400 mm Rubber shoe 400 mm Steel shoe Standard boom (2.71, standard arm (1.99, standard arm (1.69, long arm (1.92, standard dozer VZeiger suction studs on top of the ISO loader bracket + 20 mtachometer for gastrobethic pressure
Engine / Driveline and transmission
Slide-open window The window on the right side of the cab can be opened and closed both forward and reverse to make ventilation easier and making it easy to hear outside noise. Engine start password A password is required when starting the engine for greater safety. The initial password must be set in our workshop. Ultimate low noise The Kobelco exclusive Indr cooling system ensures amazing quiet operation. Sound Power Level The offset channel slows the exhaust from the muffler and engine cooling fan.
Hydraulics
Colour monitor A colour display with good legibility comes as standard, displaying various information such as operating history, maintenance cycle and fuel and water temperature readings. It can also be used to adapt the hydraulic oil flow to attachments. Hydraulic flow adjustment (Option) Rotating or N&B piping flow can be selected from six pre-set types, or adjusted as required.
Dimensions and weight
Model
SK50SRX
SK58SRX
Cab
Canopy
Cab
Canopy
Shaped
Steel shoe
Rubber shoe
Steel shoe
Rubber shoe
Steel shoe
Rubber shoe
Steel shoe
Rubber shoe
Shoe width
mm
400
Overall width of crawler
mm
1
960"
Ground pressure
kPa
29.0
27.1
28.2
26.3
31.8
29.5
30.9
28.6
Operating weight,kg,"4,980
4,810
4,830
4,660
5,440
5,230
5,290
5,080"
Cab
Canopy
Cab
Canopy
Cab
Canopy
Cab Canopy
Arm length
1.55 m
1.69 m
1.69 m
1.92 m
a- Max. digging reach
5.85
5.97
6.24
6.46
b- Max. digging reach at ground level
5.70
5.82
6.10
6.33
c- Max. digging depth
3.44
3.58
3.89
4.12
d- Max. digging height
5.66
5.75
5.74
5.83
5.95
6.10
e- Max. dumping clearance
4.08
4.16
4.16
4.24
4.37
4.52
f- Min. dumping clearance
1.51
1.56
1.37
1.42
1.59
1.36
g- Max. vertical wall digging depth
2.82
2.93
3.12
3.35
h- Min. swing radius at boom straight
2.25
2.21
2.26
2.22
2.25
2.27
h’-Min. swing radius at boom swing
1.85
1.81
1.86
1.82
1.85
1.87
i- Horizontal digging stroke at ground level
2.65
2.87
3.00
3.39
j- Digging depth for 2.4 m ( 8') flat bottom
3.02
3.17
3.47
3.73
k- Dozer blade (height/depth) (mm)
465/335
*Figures in the above tables show the value with 0.14–0.16 m3 bucket. Regarding bucket capacity
0.14 m3 in this catalogue is equivalent to 0.12 m3 in ISO07451 and 0.16 m3 in this catalogue is equivalent to 0.13 m3 in ISO0745."
Digging force (ISO 6015) Unit: kN
SK50SRX Canopy
Arm: 1.55 m
Standard
counterweight Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
4.0 m
kg
*860
850
3.97 m
3.0 m,kg,,,,,"*1,170
*1,170
1,000",840,,,770,650,4.65 m
2.0 m,kg,,,,,"1,530
1,250",960,810,,,680,570,4.98 m
1.0 m,kg,,,,,"1,430
1,160",930,770,660,560,660,550,5.05 m
G.L.,kg,,,"*1,390
*1,390
1,380
1,120",900,750,,,680,570,4.87 m
-1.0 m,kg,"*2,020
*2,020
*2,700
2,170
1,380
1,110",900,740,,,790,660,4.41 m
-2.0 m,kg,,,"2,970
2,230
1,410
1,140",,,,,"1,120",920,3.51 m
SK50SRX Canopy
Arm: 1.69 m Standard counterweight Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
5.0 m,kg,,,,,,,,,,,"*1,020
*1,020",2.84 m
4.0 m
kg
*1
000"
840
*780
*780
4.13 m
3.0 m
kg
1
000"
840
*720
620
4.78 m
2.0 m,kg,,,,,"1,540
1,260",970,810,680,570,660,550,5.10 m
1.0 m,kg,,,,,"1,430
1,160",920,770,660,560,630,530,5.17 m
G.L.,kg,,,"*1,420
*1,420
1,370
1,110",890,740,,,650,550,4.99 m
-1.0 m,kg,"*1,870
*1,870
*2,560
2,140
1,370
1,100",890,730,,,750,620,4.55 m
-2.0 m,kg,"*2,900
*2,900
2,940
2,200
1,400
1,130",,,,,"1,020",840,3.69 m
SK50SRX Cab
Arm: 1.55 m
Additional counterweight (+250 kg) Rubber shoe: 400 mm
B
A
1.0
m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
4.0 m
kg
*860
*860
3.97 m
3.0 m,kg,,,,,"*1,170
*1,170
*1,160",990,,,*790,780,4.65 m
2.0 m,kg,,,,,"*1,710
1,480
1,150",960,,,*790,690,4.98 m
1.0 m,kg,,,,,"1,700
1,390
1,110",930,800,680,790,670,5.05 m
G.L.,kg,,,"*1,390
*1,390
1,660
1,350
1,080",900,,,820,690,4.87 m
-1.0 m,kg,"*2,020
*2,020
*2,700
2,600
1,660
1,340
1,080",900,,,950,790,4.41 m
-2.0 m,kg,,,"*2,990
2,660
1,690
1,370",,,,,"1,340
1,110",3.51 m
SK50SRX Canopy
Arm: 1.55 m Additional counterweight (+250 kg) Rubber shoe: 400 mm
A B
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
4.0 m
kg
*860
*860
3.97 m
3.0 m,kg,,,,,"*1,170
*1,170
1,140",960,,,*790,750,4.65 m
2.0 m,kg,,,,,"*1,710
1,430
1,110",930,,,790,670,4.98 m
1.0 m,kg,,,,,"1,640
1,340
1,070",890,770,650,760,640,5.05 m
G.L.,kg,,,"*1,390
*1,390
1,600
1,300
1,040",870,,,790,670,4.87 m
-1.0 m,kg,"*2,020
*2,020
*2,700
2,510
1,590
1,290
1,040",870,,,910,760,4.41 m
-2.0 m,kg,,,"*2,990
2,570
1,630
1,320",,,,,"1,290
1,070",3.51 m
SK50SRX Canopy
Arm: 1.69 m Additional counterweight (+250 kg) Rubber shoe: 400 mm
A
1.0
m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
B
Radius
5.0 m,kg,,,,,,,,,,,"*1,020
*1,020",2.84 m
4.0 m
kg
*1
000"
970
*780
*780
4.13 m
3.0 m
kg
*1
100"
960
*720
*720
4.78 m
2.0 m,kg,,,,,"*1,610
1,440
1,110",930,780,660,*720,640,5.10 m
1.0 m,kg,,,,,"1,640
1,340
1,070",890,770,650,730,620,5.17 m
G.L.,kg,,,"*1,420
*1,420
1,590
1,290
1,040",860,,,760,640,4.99 m
-1.0 m,kg,"*1,870
*1,870
*2,560
2,480
1,580
1,280
1,030",860,,,870,730,4.55 m
-2.0 m,kg,"*2,900
*2,900
*3,240
2,540
1,610
1,310",,,,,"1,180",980,3.69 m
SK50SRX Cab
Arm: 1.69 m
Additional counterweight (+250 kg) Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
4.0 m,kg,,,,,,,"*1,000
*1,000",,,*780,*780,4.13 m
3.0 m,kg,,,,,,,"*1,100
1,000",,,*720,*720,4.78 m
2.0 m,kg,,,,,"*1,610
1,490
1,150",960,810,690,*720,670,5.10 m
1.0 m,kg,,,,,"*1,710
1,390
1,110",920,800,670,760,640,5.17 m
G.L.,kg,,,"*1,420
*1,420
1,650
1,340
1,080",900,,,790,670,4.99 m
-1.0 m,kg,"*1,870
*1,870
*2,560
*2,560
1,640
1,330
1,070",890,,,900,750,4.55 m
-2.0 m,kg,"*2,900
*2,900
*3,240
2,630
1,670
1,360",,,,,"1,230
1,020",3.69 m
SK58SRX Cab
Arm: 1.69 m Standard counterweight Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
5.0 m,kg,,,,,,,,,,,"*1,040
*1,040",3.38 m
4.0 m
kg
*930
*930
*1
000"
850
4.48 m
3.0 m,kg,,,,,,,"*1,000
*1,000",840,710,820,690,5.07 m
2.0 m,kg,,,,,"*1,620
1,480
1,160",970,830,690,740,620,5.37 m
1.0 m,kg,,,,,"1,700
1,370
1,110",920,800,670,710,600,5.44 m
G.L.,kg,,,"*1,260
*1,260
1,650
1,320
1,080",890,790,660,730,610,5.27 m
-1.0 m,kg,"*2,080
*2,080
*2,590
2,570
1,640
1,320
1,070",880,,,820,680,4.86 m
-2.0 m,kg,"*3,210
*3,210
*3,350
2,620
1,670
1,340
1,090",900,,,"1,060",870,4.09 m
-3.0 m,kg,,,"*1,580
*1,580",,,,,,,"*1,190
*1,190",2.52 m
SK58SRX Canopy
Arm: 1.69 m
Standard counterweight Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
5.0 m,kg,,,,,,,,,,,"*1,040
*1,040",3.38 m
4.0 m
kg
*930
*930
970
820
4.48 m
3.0 m
kg
*1
000"
970
810
680
790
660
5.07 m
2.0 m,kg,,,,,"*1,620
1,430
1,120",930,790,670,710,590,5.37 m
1.0 m,kg,,,,,"1,630
1,320
1,070",880,770,640,680,570,5.44 m
G.L.,kg,,,"*1,260
*1,260
1,580
1,270
1,030",850,760,630,700,590,5.27 m
-1.0 m,kg,"*2,080
*2,080
*2,590
2,470
1,580
1,270
1,020",840,,,790,660,4.86 m
-2.0 m,kg,"*3,210
*3,210
*3,350
2,520
1,600
1,290
1,050",860,,,"1,020",840,4.09 m
-3.0 m,kg,,,"*1,580
*1,580",,,,,,,"*1,190
*1,190",2.52 m
SK58SRX Canopy
Arm: 1.69 m Additional counterweight (+250 kg)
Rubber shoe: 400 mm
A B
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
5.0 m,kg,,,,,,,,,,,"*1,040
*1,040",3.38 m
4.0 m
kg
*930
*930
*1
000"
920
4.48 m
3.0 m,kg,,,,,,,"*1,000
*1,000",910,770,890,750,5.07 m
2.0 m,kg,,,,,"*1,620
1,610
*1,220
1,050",900,760,800,680,5.37 m
1.0 m,kg,,,,,"1,850
1,500
1,210
1,010",880,740,780,660,5.44 m
G.L.,kg,,,"*1,260
*1,260
1,790
1,450
1,170",970,860,720,800,680,5.27 m
-1.0 m,kg,"*2,080
*2,080
*2,590
*2,590
1,790
1,450
1,170",970,,,900,750,4.86 m
-2.0 m,kg,"*3,210
*3,210
*3,350
2,860
1,820
1,470
1,190",990,,,"1,150",960,4.09 m
-3.0 m,kg,,,"*1,580
*1,580",,,,,,,"*1,190
*1,190",2.52 m
SK58SRX Canopy
Arm: 1.92 m Additional counterweight (+250 kg)
Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
5.0 m
kg
*940
*940
3.77 m
4.0 m
kg
*820
*820
*930
840
4.75 m
3.0 m
kg
*900
*900
910
770
830
700
5.31 m
2.0 m,kg,,,,,"*1,430
*1,430
*1,130
1,050",890,750,750,630,5.60 m
1.0 m,kg,,,,,"1,850
1,500
1,200
1,000",870,730,730,610,5.66 m
G.L.,kg,,,"*1,300
*1,300
1,780
1,440
1,160",960,850,710,750,630,5.50 m
-1.0 m,kg,"*1,820
*1,820
*2,360
*2,360
1,770
1,420
1,150",950,850,710,820,690,5.11 m
-2.0 m,kg,"*2,790
*2,790
*3,650
2,810
1,790
1,440
1,160",960,,,"1,020",850,4.40 m
-3.0 m,kg,,,"*2,180
*2,180
*1,280
*1,280",,,,,"*1,220
*1,220",3.07 m
SK58SRX Cab
Arm: 1.69 m Additional counterweight (+250 kg) Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
5.0 m,kg,,,,,,,,,,,"*1,040
*1,040",3.38 m
4.0 m
kg
*930
*930
*1
000"
950
4.48 m
3.0 m,kg,,,,,,,"*1,000
*1,000",950,800,920,780,5.07 m
2.0 m,kg,,,,,"*1,620
*1,620
*1,220
1,090",930,780,830,700,5.37 m
1.0 m,kg,,,,,"1,910
1,550
1,250
1,040",910,760,810,680,5.44 m
G.L.,kg,,,"*1,260
*1,260
1,860
1,500
1,220
1,010",890,750,830,700,5.27 m
-1.0 m,kg,"*2,080
*2,080
*2,590
*2,590
1,850
1,500
1,210
1,000",,,930,780,4.86 m
-2.0 m,kg,"*3,210
*3,210
*3,350
2,960
1,880
1,520
1,230
1,020",,,"1,200",990,4.09 m
-3.0 m,kg,,,"*1,580
*1,580",,,,,,,"*1,190
*1,190",2.52 m
SK58SRX Cab
Arm: 1.92 m Additional counterweight (+250 kg) Rubber shoe: 400 mm
B
A
1.0 m
2.0 m
3.0 m
4.0 m
5.0 m
At Max. Reach
Radius
5.0 m
kg
*940
*940
3.77 m
4.0 m
kg
*820
*820
*930
870
4.75 m
3.0 m
kg
*900
*900
*930
800
860
720
5.31 m
2.0 m,kg,,,,,"*1,430
*1,430
*1,130
1,090",930,780,780,660,5.60 m
1.0 m,kg,,,,,"1,920
1,550
1,250
1,040",900,760,750,630,5.66 m
G.L.,kg,,,"*1,300
*1,300
1,850
1,490
1,210
1,000",880,740,770,650,5.50 m
-1.0 m,kg,"*1,820
*1,820
*2,360
*2,360
1,830
1,480
1,190",990,880,740,860,720,5.11 m
-2.0 m,kg,"*2,790
*2,790
*3,650
2,910
1,850
1,490
1,210
1,000",,,"1,060",880,4.40 m
-3.0 m,kg,,,"*2,180
*2,180
*1,280
*1,280",,,,,"*1,220
*1,220",3.07 m
Other features
Suspension seat A well-proven Grammer suspension seat unit is fitted as standard, offering a reclining mechanism, shock absorber and excellent seating comfort. Switches with LED backlights The switches and dials feature LED background lights that provide a bright, clear view in the dark setting a luxurious mood.
Tables
Model
YANMAR 4TNV88C-PYBD
Type
Four-stroke
water-cooled
direct injection diesel engine
complies with EU Stage V exhaust emission regulation"
No. of cylinders
4
Bore and stroke
88 mm x 90 mm
Displacement
2.189 L
Rated power output
27.7 kW/2
400 min-1 (ISO 9249: with fan)"
29.1 kW/2
400 min-1 (ISO 14396: without fan)"
Max. torque
136.8 N. m/1
560 min-1 (ISO 9249: with fan)"
139.1 N. m/1
560 min-1 (ISO 14396: without fan)"
Swing motor
One fixed displacement piston motor
Brake
Hydraulic; locking automatically when the swing control lever is in the neutral position
Parking brake
Wet multiple plate
Swing speed
8.5 min-1
Tail swing radius
1
170 mm"
Swing torque
12.4 kN. m
Pump
Type
Two variable displacement axial piston pumps + one gear pump + pilot pump
Max. discharge flow
SK50SRX
2 x 49.9 L/min 1 x 33.8 L/min 1 x 10.8 L/min
SK58SRX
2 x 53 L/min 1 x 33.8 L/min 1 x 10.8 L/min
Relief valve setting
Boom
arm and bucket"
23.0 MPa
Travel circuit
23.0 MPa
Swing circuit
20.1 MPa
Blade circuit
22.0 MPa
Control circuit
3.5 MPa
Pilot control circuit
Gear type
Main control valves
11-spool
Oil cooler
Air cooled type
Travel motors
Two variable displacement piston motors
Travel brakes
Hydraulic brake
Parking brakes
Wet multiple plate
Travel shoes
38 each side
Travel speed
SK50SRX
4.2/2.2 km/h (rubber shoe) 3.9/2.1 km/h (steel shoe)
Ask for inspection of your Kobelco SK 50 SRX 7 from experts
Mevas is an international operating inspection service for used heavy machinery. Construction machinery inspectors are available in more than 20 countries.
Use this service to minimise the risk when buying used equipment. An inspection by Mevas costs less than repairing a defective hydraulic cylinder.
Mini Excavator Buyers Guide - price ranges of new and used models
At LECTURA we collect price lists since 40 years and using this data, we can support buyers with pricing lists of used mini excavators, such as Kobelco SK 50 SRX 7 .
Check what new and used models of mini excavators you can get in each price range:
Whether you need to get value of your Kobelco SK 50 SRX 7 or valuation of your Mini Excavators fleet, LECTURA Valuation will help. Simply fill the machine details and see the values for Mini Excavators in few clicks.
Get spare parts for Kobelco SK 50 SRX 7 easily from our partners
Do your lookup for high quality parts for Kobelco SK 50 SRX 7 online!
With a few, easy steps, you will find generic and genuine parts and replacements in well-catalogued lists. Wether you are dealer or an owner, LECTURA can lead you to the right direction.
Check the best offers from our partners and order the Mini Excavators spare parts easily today - worldwide.
In case you look into transport options for your machine, take advantage of our services. Seek for the ideal transport quotes for Mini Excavators built on transport dimensions and machine's weight. Our partners provide various services to meet your demands.
Check the full list of new heavy machinery models presented by manufacturers during May 2026! Are you particularly interested in any of these highlights? Maybe Bobcat´s skid steer loaders, John Deers´s mowers, or JLG´s trailers?
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