Doosan Industrial Vehicle offers a comprehensive range of forklifts across diesel, LPG, and electric powertrains, with capacities spanning 1.5 to 25.0 tonnes. Specifications vary by model series, power source, and configuration. This guide provides an overview of key specifications for Doosan's major forklift families in 2026.
D Series – Diesel Forklifts
The D Series is Doosan's core diesel lineup, built for heavy-duty outdoor applications including construction, lumber yards, ports, and heavy manufacturing.
Model Capacity Load Center Engine Transmission Tire Type
D20S-5 2,000 kg 500 mm 4-cyl diesel Powershift Pneumatic
D25S-7 2,500 kg 500 mm 4-cyl diesel (Tier 4/Stage V) Powershift Pneumatic
D30S-5 / D30S-7 3,000 kg 500 mm 4-cyl diesel Powershift Pneumatic
D50S-7 5,000 kg 600 mm 6-cyl diesel (Tier 4/Stage V) Powershift Pneumatic
D70S-7 7,000 kg 600 mm 6-cyl diesel Powershift Pneumatic
D100S-7 – D160S-7 10,000–16,000 kg 600–900 mm 6-cyl heavy-duty diesel Powershift Pneumatic (heavy-duty)
Key Features (D Series):
Operator Sensing System (OSS) – prevents movement when operator is not properly seated
Oil-cooled disc brakes – reduced maintenance, exceptional durability
Powershift transmission – smooth, reliable power delivery
High-visibility mast – improved forward visibility
Emission compliance – EPA Tier 4 Final / EU Stage V available
G Series – LPG / Gasoline Forklifts
The G Series offers LPG and gasoline-powered alternatives for mixed indoor/outdoor operations where diesel emissions are a concern.
Model Capacity Load Center Fuel Type Tire Type
G20E-3 2,000 kg 500 mm LPG / Gasoline Cushion or Pneumatic
G25S-7 2,500 kg 500 mm LPG Cushion or Pneumatic
G30E-3 3,000 kg 500 mm LPG / Gasoline Cushion or Pneumatic
Key Features (G Series):
Lower emissions than diesel – suitable for indoor use with ventilation
OSS – Operator Sensing System
Oil-cooled disc brakes
Powershift transmission
B Series – Electric Counterbalance Forklifts
The B Series represents Doosan's established electric lineup, featuring AC motor technology for zero-emission indoor operations.
Model Capacity Load Center Voltage Battery Options Tire Type
B20X-7 2,000 kg 500 mm 48V Lead-acid / Lithium-ion Cushion or Pneumatic
B25X-7 2,500 kg 500 mm 48V Lead-acid / Lithium-ion Cushion or Pneumatic
B30X-7 3,000 kg 500 mm 48V / 80V Lead-acid / Lithium-ion Cushion or Pneumatic
B40X-7 – B50X-7 4,000–5,000 kg 600 mm 80V Lead-acid / Lithium-ion Cushion or Pneumatic
Key Features (B Series):
AC motor technology – high energy efficiency, low maintenance
Regenerative braking – returns energy to battery during deceleration
OSS – Operator Sensing System
GSS – Guardian Stability System (7-Series models)
High-visibility mast
NXE Series – Advanced Electric Forklifts
The NXE Series is Doosan's newer generation electric lineup, featuring full AC control systems and lithium-ion-ready battery compartments.
Model Capacity Voltage Battery Options Key Features
B15NS – B25NS 1,500–2,500 kg 48V Lead-acid / Lithium-ion ready Full AC control, Curtis controller, OSS, GSS
B30NS – B35NS 3,000–3,500 kg 80V Lead-acid / Lithium-ion ready Full AC control, Curtis controller, OSS, GSS
Key Features (NXE Series):
Full AC control system
Curtis controller – intelligent computer control with fault display
Battery side extract system – quick, safe battery changes without overhead lifting
Cold storage hydraulic option – reliable operation down to -20°C (-4°F)
OSS – Operator Sensing System
GSS – Guardian Stability System
Battery Options – Electric Models
Feature Lead-Acid Battery Lithium-Ion Battery
Upfront Cost Lower Higher
Maintenance Regular watering, equalization Zero maintenance – sealed
Charge Time 6–8 hours + cool-down 1–2 hours; opportunity charging
Cycle Life 1,000–1,500 cycles (3–5 years) 2,000–5,000 cycles (8–12 years)
Efficiency 75–80% 95–99%
Cold Storage Reduced performance Maintains performance (with cold storage package)
Common Specifications Across All Series
Specification Details
Mast Types Simplex, Duplex, Triplex (lift heights from 3.0 m to 6.0 m+)
Tire Options Cushion (indoor smooth surfaces) / Pneumatic (outdoor, uneven terrain)
Operator Safety OSS (Operator Sensing System), GSS (Guardian Stability System)
Brakes Oil-cooled disc brakes (standard on most models)
Steering Hydrostatic steering (reduces operator fatigue)
Emission Compliance EPA Tier 4 Final, EU Stage V (diesel models)
How to Find Exact Specifications for Your Model
For precise specifications for a specific Doosan forklift model:
Check the data plate – Located on the forklift frame, listing capacity, load center, weight, and mast type.
Consult the operator's manual – Provides detailed specifications for your specific model and serial number.
Contact an authorized Doosan dealer – Dealers can provide official specification sheets and parts manuals.
Search by model number – Use the full model number (e.g., D30S-7, B25X-7, B25NS) when searching online or contacting dealers.
Summary
Doosan forklifts are available in diesel (D Series) , LPG (G Series) , and electric (B Series / NXE Series) configurations, with capacities from 1.5 to 25.0 tonnes. Diesel models feature Tier 4/Stage V engines, powershift transmissions, and oil-cooled disc brakes. Electric models offer AC motor technology, regenerative braking, and lithium-ion battery options. The NXE Series provides advanced AC control, Curtis controllers, and cold storage capability down to -20°C. Common safety features across all series include the Operator Sensing System (OSS) and Guardian Stability System (GSS). For exact specifications, consult the data plate, operator's manual, or an authorized Doosan dealer.