Sakai Drum Roller SV620D | 7.1 ton

Description

Sakai Drum Roller SV620D | 7.1 ton

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Specification Unit Sakai Drum Roller SV620D | 7.1 ton

The Sakai SV620D is a high-performance, single-drum vibratory roller designed for medium to large soil compaction projects. While you mentioned a 7.1-ton figure, it is important to note that 7.1 tons (7,110 kg) specifically refers to the load on the front axle (drum). The total operating weight of the machine is actually in the 12.5–13 ton class.
Below are the detailed specifications for the Sakai SV620D:

Weights & Ground Pressure

Total Operating Weight: Approx. 12,890 kg (with Awning/ROPS).
Load on Front Axle (Drum): 7,110 kg (This provides the high compaction force).
Load on Rear Axle (Tires): 5,690 kg.
Static Linear Pressure: 334 N/cm (approx. 191 lb/in).

Compaction Performance

Centrifugal Force: 172 kN (Low) / 255 kN (High).
Vibration Frequency: 33.3 Hz (Low) / 28.3 Hz (High).
Nominal Amplitude: 1.02 mm / 2.09 mm.
Compaction Width: 2,130 mm (84 inches).

Engine & Drivetrain

Engine Model: Isuzu 4BG1T (Turbocharged).
Type: 4-cylinder, water-cooled diesel.
Rated Output: 83.3 kW (112 HP) @ 2,100 rpm.
Drive System: Hydrostatic (All-wheel drive: drum and tires).
Travel Speed: 0 – 6 km/h (Low) / 0 – 10 km/h (High).
Gradeability: 52% (27°).

Dimensions

Overall Length: 5,840 mm.
lass=”yoast-text-mark” />>Overall Width: 2,295 mm.
/>>Overall Height: 2,910 mm (to top of Awning/ROPS).
Wheelbase: 2,970 mm.
Drum Diameter: 1,530 mm.
Shell Thickness: 25 mm (Heavy duty).

Key Features

Eco Mode: Sakai’s Eco compaction mode (ECM) reduces fuel consumption by up to 20% while maintaining performance.
Dual Isolation: Uses a dual rubber isolation system between the drum and the operator deck to minimize vibration for the driver.
Traction Control: Excellent climbing ability and traction on loose or steep terrain due to the synchronized drum and tire drive.

Engine

Model : KUBOTA V3300.
Type : Water-cooled, 4-cycle direct injection.

Engine power
at rated engine speed 2800 rpm
ISO 14396 34.3 kW / 46.0 HP
ISO 9249 (net engine power) 33.7 kW / 45.2 HP

No. of cylinders : 4
Bore × stroke : 88 × 90 mm.

Displacement : 2.19 l.
Max. torque / engine speed :140 Nm / 1820 rpm.
Cooling system : Water

Fuel

Diesel fuel, conforming to EN590
Class 2/Grade D. Paraffinic fuel
capability (HVO, GTL, BTL),
conforming to EN 15940:2016

Transmission

Type : Hydrostatic
Pumps : 2 × variable displacement.

Hydraulic motors : 2 × axial pistons.
No. of speeds : 2.

Max. travel speed 16 km/h
Automatic working and parking brakes

Hydraulic system

Type Komatsu CLSS
Hydraulic pump Gear pump.

Max. pump flow 62 l/min
Max. operating pressure 190 bar
Max. pump flow – “Super Flow” (option) 100 l/min

Performance

Rated operating capacity : 345 kg  ( 760.60 in )
Tipping load : 690 kg ( 1521.19 in ).

Maximum travel speed : 10.3 km/h  ( 6.4 mph )
Maximum drawbar pull : 10.1 kN ( 2270.57 lbf ).

Lift arm breakout force : 7.6 kN ( 1708.55 lbf )
Bucket breakout force : 8.7 kN ( 1955.84 lbf )
Gradeability : 25°

Hydraulic System

Maximum flow : 38 L/min ( 10.04 gal/min )
Pressure – Working equipment circuit : 19 MPa ( 2755.72 psi ).

Pressure – Travel circuit : 25 MPa ( 3625.94 psi )
Pressure – Pilot circuit : 2.4 MPa ( 348.09 psi )

Loader

Operating capacity (standard bucket) 680 kg
Tipping load (standard bucket) 1360 kg.

Standard bucket capacity (ISO 7546) 0.35 m³
Bucket breakout force (ISO 14397) 1383 daN (1410 kg).

Operating capacity with pallet forks 490 kg
Max. loading height with forks 2660 mm
Reach with forks 1565 mm

Operating weight (appr.)

Weight, including open cab, operator (75 kg), liquids,
filled tank and standard equipment (without bucket) : 2675 kg.

Standard bucket (1580 mm) + 172 kg
Additional counterweight + 120 kg
Front door + 40 kg

Service refill capacities

Fuel tank 67 l
Cooling system 9.0 l
Engine oil 7.5 l
Hydraulic system 27 l
Final transmission 14.4 l

Environment

Engine emissions Fully complies with EU Stage V
exhaust emission regulations.

Noise levels.
LwA external 85 dB(A) (2000/14/EC Stage II)
LpA operator ear 101 dB(A) (ISO 6396 dynamic test).

Vibration levels (EN 12096:1997)
Hand/arm ≤ 2.5 m/s² (uncertainty K = 1.2 m/s²)
Body ≤ 0.5 m/s² (uncertainty K = 0.2 m/s²)