SDF Series Diesel Forklift — 5.0-8.0 Ton
The Soosung SDF Series is a range of heavy-duty diesel forklifts covering rated capacities from 5.0 to 8.0 tons. Powered by a reliable ISUZU 6BG1 engine and built with hydraulic transmission, the SDF Series is engineered for demanding high-tonnage material handling in outdoor yards, ports, and heavy industrial environments.
Product Overview
The Soosung SDF Series diesel forklift delivers dependable, high-capacity lifting for the most demanding operations. Available in four rated capacities — SDF50 (5.0 t), SDF60 (6.0 t), SDF70 (7.0 t), and SDF80 (8.0 t) — the series combines a proven ISUZU 6BG1 six-cylinder diesel engine with a robust hydraulic transmission for strong, consistent performance.
Each model offers a standard 3,000 mm lift height with a wide selection of mast configurations, including wide-view 2-stage, full-free 2-stage, and full-free 3-stage masts up to 6,000 mm. With a 6°/12° mast tilt, large pneumatic tyres, and substantial service weights from 8,150 kg to 10,350 kg, the SDF Series is purpose-built for heavy outdoor and industrial duty cycles.
Key Features & Benefits
Four rated capacities cover heavy lifting needs from 5.0 t (SDF50) up to 8.0 t (SDF80).
Proven 6-cylinder ISUZU diesel engine delivers 82.3 kW at 2000 rpm with reliable, low-maintenance power.
Wide-view 2-stage, full-free 2-stage, and full-free 3-stage masts available, with lift heights up to 6,000 mm.
Smooth 2/2 forward-reverse hydraulic transmission provides easy, responsive control under heavy loads.
Forward and reverse mast tilt of 6°/12° ensures secure load handling and stable stacking at height.
Service weights up to 10,350 kg and large pneumatic tyres deliver stability for tough outdoor and industrial use.
Technical Specifications
| Specification | SDF50 | SDF60 | SDF70 | SDF80 |
|---|---|---|---|---|
| General | ||||
| Power Type | Diesel | Diesel | Diesel | Diesel |
| Rated Capacity (kg) | 5,000 | 6,000 | 7,000 | 8,000 |
| Load Centre (mm) | 600 | 600 | 600 | 600 |
| Lift Height (mm) | 3,000 | 3,000 | 3,000 | 3,000 |
| Characteristic & Dimension | ||||
| Fork Size L×W×T (mm) | 1220×150×60 | 1220×150×60 | 1220×150×70 | 1220×150×70 |
| Mast Tilt Angle F/R (deg) | 6°/12° | 6°/12° | 6°/12° | 6°/12° |
| Front Overhang — Wheel Center to Fork Face (mm) | 590 | 590 | 595 | 595 |
| Ground Clearance — Bottom of Mast (mm) | 200 | 200 | 200 | 200 |
| Length to Face of Fork — Without Fork (mm) | 3,450 | 3,450 | 3,560 | 3,560 |
| Overall Width (mm) | 2,010 | 2,010 | 2,010 | 2,010 |
| Mast Lowered Height (mm) | 2,500 | 2,500 | 2,500 | 2,500 |
| Mast Extended Height — With Backrest (mm) | 4,415 | 4,415 | 4,415 | 4,415 |
| Overhead Guard Height (mm) | 2,470 | 2,470 | 2,470 | 2,470 |
| Turning Radius — Outside (mm) | 3,250 | 3,250 | 3,350 | 3,350 |
| Min. Intersecting Aisle (mm) | 2,960 | 2,960 | 3,040 | 3,040 |
| Performance | ||||
| Travel Speed — Empty Load (km/h) | 30 | 30 | 30 | 30 |
| Lifting Speed — Full Load (mm/s) | 500 | 500 | 460 | 420 |
| Max. Gradeability (%) | 20 | 20 | 20 | 20 |
| Chassis | ||||
| Front Tire | 8.25-15-14PR | 8.25-15-14PR | 8.25-15-14PR | 8.25-15PR |
| Rear Tire | 8.25-15-14PR | 8.25-15-14PR | 8.25-15-14PR | 8.25-15 PR |
| Wheelbase (mm) | 2,250 | 2,250 | 2,250 | 2,250 |
| Service Weight (kg) | 8,150 | 8,750 | 9,750 | 10,350 |
| Power & Transmission | ||||
| Battery Voltage/Capacity (V/Ah) | (12/800)×2 | (12/800)×2 | (12/800)×2 | (12/800)×2 |
| Engine Model | 6BG1 | |||
| Engine Manufacture | ISUZU | |||
| Rated Output / r.p.m. (kW) | 82.3 / 2000 | |||
| Rated Torque / r.p.m. (N·m) | 416 / 1400-1600 | |||
| No. of Cylinder | 6 | |||
| Bore × Stroke (mm) | 105×125 | |||
| Displacement (cc) | 6494 | |||
| Fuel Tank Capacity (L) | 140 | 140 | 140 | 140 |
| Transmission Type | Hydraulic | Hydraulic | Hydraulic | Hydraulic |
| Transmission Stage — FWD/RVS | 2/2 | 2/2 | 2/2 | 2/2 |
| Operating Pressure For Attachment (MPa) | 19 | 19 | 19 | 19 |
⚠ Specifications are subject to change without prior notice.
Applications
Ports & Yards
High service weight and pneumatic tyres handle heavy container and cargo movement across port and yard surfaces.
Heavy Industry
Lifts steel, machinery, and bulk materials in steelworks, manufacturing plants, and heavy industrial facilities.
Lumber & Building Materials
Strong 5-8 ton capacity suits timber yards, brick and block handling, and building-materials distribution.
Outdoor Logistics
Diesel power and rugged construction make the SDF Series ideal for demanding outdoor logistics operations.
Interested in the Soosung SDF Series?
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