Kobelco Mini Excavator SK28SR-7 | 2.8 ton

Description

Kobelco Mini Excavator SK28SR-7 | 2.8 ton

BELIALAT.COM support, unit, parts, service, rental, maintenance contract, overhaul, rconditioned Kobelco Mini Excavator SK28SR-7 | 2.8 ton

The Kobelco SK28SR-7 is a 2.8-ton class mini excavator built around Kobelco’s “Performance x Design” concept. It features a Zero Tail Swing profile, upgrading the engine output, bucket digging force, and cabin comfort over its predecessor, the dash-6.

The complete technical specifications for the Kobelco SK28SR-7 cover its engine, hydraulics, working ranges, and dimensions:

1. Engine Specs

• Model: Yanmar 3TNV88

• Type: 4-cycle, water-cooled, direct-injection 3-cylinder diesel engine (EU Stage V compliant)

• Displacement: 1.642 liters

• Rated Power Output: 18.9 kW (25.3 hp) at 2,400 rpm (ISO 14396)

• Fuel Tank Capacity: 42.0 liters

2. Operating Weight & Ground Pressure

• Operating Weight: 2,980 kg to 3,270 kg (approx. 3.0–3.2 tons depending on Canopy vs. Cab and counterweight configuration)

• Ground Pressure: ~26.3 kPa (Cab) / ~24.9 kPa (Canopy)

3. Hydraulic System & Travel Force

• Pump Type: Two variable displacement axial piston pumps + one gear pump + pilot pump

• Max. Discharge Flow: 2 x 28.8 L/min, 1 x 16.1 L/min, 1 x 10.8 L/min

• Relief Valve Setting: 23.0 MPa (Boom, Arm, and Bucket)

• Travel Motors: Two variable displacement piston motors

• Travel Speed: 3.8 km/h (High) / 2.1 km/h (Low)

• Drawbar Pulling Force: 34.7 kN (Cab) / 34.8 kN (Canopy)

• Swing Speed: 8.2 rpm

4. Digging Force (Standard 1.18 m Arm)

• Bucket Digging Force: 24.7 kN

• Arm Crowding Force: 16.6 kN

• Standard Bucket Capacity: 0.08 m³

5. Working Ranges (Standard Configuration)

• Max. Digging Reach: 4,840 mm

• Max. Digging Reach at Ground Level: 4,680 mm

• Max. Digging Depth: 2,590 mm

• Max. Digging Height: 4,480 mm

• Max. Dumping Clearance: 3,090 mm

• Max. Vertical Wall Digging Depth: 2,270 mm

• Boom Swing Angle: 60° (Left) / 55° (Right)

6. General Machine Dimensions

• Overall Length: 4,510 mm

• Overall Width: 1,550 mm

• Overall Height: 2,510 mm

• Tail Swing Radius: 775 mm (0 mm tail overhang past the tracks)

• Track Shoe Width: 300 mm (Rubber shoes standard)

• Dozer Blade Dimensions: 1,550 mm (Width) x 345 mm (Height)

• Dozer Working Range: 375 mm (Max. lift above ground) / 300 mm (Max. drop below ground)

7. Core Feature Upgrades in the Series 7

• iNDr Cooling System: Kobelco’s integrated Noise and Dust Reduction system, which pulls air through a high-density mesh filter, drastically lowering decibel levels and keeping dust away from the engine block.

• Upgraded Cab Comfort: Features a fully redesigned cab layout with ergonomic wrist rests, standard suspension seating, backlit LED switches, and a color multi-display monitor.

• ECO-mode: Features an energy conservation mode (S-mode) that cuts fuel consumption by up to 25% compared to legacy running systems.