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FD40‑RT Rough Terrain Forklift
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FD40‑RT Rough Terrain Forklift

4 Ton 4×4 Diesel Forklift for Construction, Lumber Yards & Industrial Sites
HAMAC FD40‑RT rough terrain forklift is a 4 ton 4WD diesel forklift designed for demanding outdoor applications where loads are heavy and ground conditions are uneven. Combining a high‑capacity wide‑view mast with 4,000 kg rating, 4×4 traction, strong 55 kW engine power and increased ground clearance, FD40‑RT enables safe lifting and transport of heavy pallets and bulk materials across construction sites, lumber yards and industrial depots.
Rated load capacity: 4,000 kg
Maximum lift height: 4,500 mm
Engine & power type: 4‑cylinder diesel engine, 55 kW output

HAMAC FD40‑RT rough terrain forklift is a heavy‑duty 4 ton 4×4 diesel forklift built for outdoor sites where materials are dense and ground conditions are rough. Its reinforced chassis, wide‑view mast and deep‑tread pneumatic tyres allow operators to handle steel bundles, concrete products, timber packs and bulk bags up to 4,000 kg on mud, gravel and soft soil without sacrificing stability.sinoliftforklift+3

Compared with smaller 3–3.5T models, the FD40‑RT 4 ton rough terrain forklift offers extra lifting capacity and stronger frames for heavier industrial and construction loads. It is widely used by building contractors, lumber and timber operations, mining sites and industrial plants that require one reliable 4×4 diesel forklift to unload trucks, move materials around large outdoor yards and feed production or construction areas all day.

Product Advantages

Built for challenging ground

01 Built for challenging ground

A rough terrain forklift is engineered specifically for outdoor use on uneven, muddy or soft surfaces, working reliably where standard warehouse trucks cannot operate safely.

High ground clearance and big tyres

02 High ground clearance and big tyres

Large, heavily treaded pneumatic tyres and increased ground clearance allow the machine to climb over ruts, rocks and debris while maintaining traction and stability on gravel, mud and grass.

Powerful diesel performance

03 Powerful diesel performance

Rough terrain forklifts usually feature high‑power diesel engines that deliver strong torque for climbing and pulling on rough surfaces, with long operating hours and no need for frequent charging.

2WD / 4WD traction options

04 2WD / 4WD traction options

Many models offer true 4WD or switchable 2WD/4WD systems, giving operators the flexibility to balance fuel economy and maximum traction depending on whether they are on firm yards or very soft ground.

Enhanced stability and robust frames

05 Enhanced stability and robust frames

Reinforced chassis, wide wheelbases and heavy‑duty suspension systems help rough terrain forklifts stay stable under heavy loads on sloping and uneven terrain, reducing the risk of tipping.

Wide application range outdoors

06 Wide application range outdoors

Thanks to their go‑anywhere design, rough terrain forklifts are indispensable in construction sites, farms, timber and stone yards, mining and even disaster‑relief operations, handling materials efficiently across multiple outdoor environments.

Compatible Attachments

Rallet fork
Rallet fork
Bucket
Bucket
Crane Arm
Crane Arm
Mixed barrel
Mixed barrel
Bale Fork
Bale Fork
Snow Blower
Snow Blower
Grapple Bucket
Grapple Bucket
Mixed Bucket
Mixed Bucket
Road Sweeper
Road Sweeper
Mixed barrel
Mixed barrel
Crass Cutter
Crass Cutter

Application Scenarios

Construction Sites
Construction Sites
Agriculture & Farming
Agriculture & Farming
Industrial Logistics
Industrial Logistics
Municipal Works
Municipal Works
Mining & Energy
Mining & Energy

Technical Specifications

Item Unit FD40-RT Value
Rated load capacity kg 4000
Load center mm 500
Power type - Diesel
Drive type - 4WD rough terrain
Mast type - Wide-view duplex / triplex mast
Max. lift height mm 4500
Collapsed mast height mm approx. 2500–2700
Free lift height mm up to 1500 (triplex mast)
Fork size (L × W × T) mm 1220 × 125 × 50
Tilt angle (forward / back) ° 6 / 12
Overall length (without fork) mm approx. 3300–3500
Overall width mm approx. 1900–2000
Overhead guard height mm approx. 2300–2450
Wheelbase mm approx. 2100–2200
Ground clearance (mast) mm 280–320
Ground clearance (center) mm 300–350
Front tyre size - 18/70-20 or similar off-road tyre
Rear tyre size - 12.00-18 or similar off-road tyre
Travel speed (loaded) km/h 20–25
Travel speed (unloaded) km/h 25–30
Max. gradeability (loaded) % 25–30
Service weight kg approx. 7000–8000
Engine type - 4-cylinder water-cooled diesel
Rated engine power kW 55
Fuel tank capacity L 80–100
Hydraulic oil tank capacity L 70–90
Steering type - Hydraulic power steering
Brake system - Hydraulic / wet disc service
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Common FAQs

What typical applications is the FD40‑RT rough terrain forklift used for?
The FD40‑RT rough terrain forklift is designed for heavy outdoor material handling on construction sites, lumber and timber yards, ports, quarries and industrial depots. It handles pallets of bricks, cement, steel sections, timber packs and bulk bags up to 4,000 kg on unpaved, uneven ground.
Why choose a 4 ton rough terrain forklift instead of a 3 or 3.5 ton model? +
A 4 ton 4×4 rough terrain forklift like the FD40‑RT provides additional capacity and stability for dense loads that exceed 3–3.5 tons, such as heavy steel bundles, large timber packs or concrete products. This margin improves safety, reduces overload risk and extends machine life on demanding sites in regions with heavier materials, such as infrastructure projects and industrial plants in the Middle East, Africa and Latin America.
How does the FD40‑RT perform on mud, gravel and soft soil? +
The FD40‑RT combines 4WD traction, high ground clearance and deep‑tread pneumatic tyres to maintain grip on mud, wet clay, crushed stone and mixed ground. Its robust axles and off‑road geometry allow the truck to travel across site roads, slopes and yard surfaces where conventional warehouse forklifts would lose traction or bottom out.
Is the FD40‑RT suitable for lumber yards and timber operations? +
Yes. The FD40‑RT lumber yard forklift can lift and transport heavy timber packs, log bundles and plywood pallets with its 4,000 kg capacity and wide‑view mast. Its off‑road tyres and 4×4 drive enable safe operation on sawmill yards, outdoor storage areas and uneven timber sites in rainy or snowy climates.
What mast and attachment options are available for the FD40‑RT? +
The FD40‑RT can be specified with 2‑stage or 3‑stage masts up to around 4.5–6.0 m, depending on stacking height requirements. Common attachments include side shifters, fork positioners, clamps, bale or block handlers and buckets, allowing one 4T rough terrain forklift to cover pallet handling, bulk loading and special material handling tasks.
How does the FD40‑RT fit into port, mining and industrial operations? +
In ports, mining and heavy industry, the FD40‑RT serves as a heavy‑duty outdoor forklift for loading and unloading trucks, feeding stockpiles and supplying production lines. Its 4T capacity and approximately 55 kW engine provide the power needed to move dense materials and equipment across large yards with variable ground conditions.
What should buyers consider when specifying the FD40‑RT for their site? +
Key factors include typical load weights, maximum stacking height, ground conditions, climate and available operating space. Buyers should also consider preferred engine brands, mast type, attachments and emissions requirements for their country, so the FD40‑RT configuration matches local regulations and jobsite needs.
Is the FD40‑RT suitable for dealers and rental fleets, and how can they request a quote? +
The FD40‑RT is a strong addition to forklift dealers and rental fleets serving construction, lumber, mining and industrial customers who need heavy‑duty 4×4 forklifts. Dealers can request a quote by providing required quantity, lift height, typical loads, ground conditions, destination port and desired incoterms (EXW, FOB, CFR, CIF, DAP), and HAMAC will respond with pricing, lead time and a recommended FD40‑RT configuration.
Tags : HAMAC rough terrain forklift lumber yard forklift FD40‑RT rough terrain forklift 4 ton rough terrain forklift heavy‑duty rough terrain forklift industrial rough terrain forklift outdoor material handling forklift off‑road forklift for construction 4T 4×4 diesel forklift all‑terrain 4WD forklift

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