Product Background

In small and medium-sized mines, the long-standing pain point has always been the same: "large equipment can't fit, small equipment can't carry enough." This gap in the middle has frustrated mine operators for years. Beijun Group developed its 3.5-ton wheeled mining dump truck specifically to bridge that gap. It is built for narrow roadways, short-haul heavy loads, and complex underground terrain where maneuverability matters as much as payload.

Key Challenges in Small-Mine Haulage

Space is tight: Many small and medium mines have tunnels with limited height and width. Standard mining trucks are too large to maneuver, while smaller equipment lacks the capacity to handle daily production needs.

Terrain is rough: Underground roadways are uneven, with steep gradients and sharp turns. Equipment needs enough traction to climb loaded and enough stability to stay upright on uneven surfaces.

Conditions are harsh: High humidity, dust, and mud are common underground. Standard brake systems can fail in these conditions, creating safety risks for operators.

Maintenance is expensive: Remote mine locations make parts and service difficult to access. Equipment that is hard to service leads to costly downtime.

Beijun Solution: The 3.5-Ton Wheeled Mining Dump Truck

Beijun's 3.5-ton mining truck is engineered to address these challenges directly. It combines compact dimensions with robust construction and safety features designed specifically for underground conditions.

Compact Size for Tight Spaces:
   The truck stands just 1.8 meters tall, allowing it to operate in low-clearance tunnels where larger equipment cannot go. Its overall dimensions are designed to navigate tunnels as narrow as 2.5 meters wide, making it a practical choice for small-scale mining and tunneling projects.

Reliable Powertrain:
   Powered by a Changchai 490 engine delivering 63 horsepower, paired with a Dongfeng 145 front-mounted high-low speed transmission. This combination provides the low-end torque needed for climbing steep underground ramps with a full load. The engine is backed by well-known component brands, ensuring parts availability and reducing maintenance costs.

Wet Braking System – Essential for Underground Safety:
   The truck comes standard with a wet disc braking system. Unlike traditional dry brakes, the enclosed design of wet brakes prevents dust and moisture ingress. In dusty and muddy underground conditions, wet brakes offer faster response and more reliable stopping power, with a braking distance of ≤4.5m at 30km/h and no sliding on 20° slopes. This is a critical safety feature for loaded trucks on downhill hauls.

Durable Construction:
   Built on a reinforced 140×60×8mm steel frame with 1069 heavy-duty axles, the truck is designed to withstand the constant shock of rough tunnel floors. The dump body features an 8mm steel bottom and 6mm sides, with a U-shaped arc structure that reduces ore residue to less than 2% and cuts cleaning time by 30% compared to flat-bottom designs.

Safety Features:
   The operator cabin is equipped with a mining-specific safety lifting canopy, meeting KA mine safety certification standards. The truck also includes a shift cable design that reduces operating effort, lowering driver fatigue by 40% even during extended shifts.

Technical Specifications

• Model: Beijun 3.5T Wheeled Mining Dump Truck

• Engine: Changchai 490, 63 hp

• Transmission: Dongfeng 145 front-mounted high-low speed

• Axles: Front 1069 / Rear 1069

• Frame: 140×60×8mm

• Dump Body Size: 2.8 × 1.6 × 0.55m (2.8m³ capacity)

• Plate Thickness: Bottom 8mm / Side 6mm

• Tires: 700-16 Chaoyang mining tires

• Braking: Wet disc brake system

• Exhaust Treatment: Water-based system

• Vehicle Height: 1.8 meters

• Certification: KA (Mine Safety)

Implementation Results

Fits where others can't: The 1.8-meter height allows operation in low-clearance tunnels that would block standard underground mining trucks. This enables production in mine areas previously considered inaccessible.

Improved uptime: The combination of reliable powertrain components and durable construction has contributed to an average equipment attendance rate increase of 30% in small and medium mines where these trucks have been deployed.

Reduced maintenance costs: The use of widely available components and the accessible service design means faster repairs and lower parts costs compared to more complex equipment.

Safer underground operation: The wet braking system has proven reliable in humid and dusty conditions, reducing the risk of brake failure on steep ramps.

Client Feedback

"The 3.5-ton Beijun truck is exactly what we needed for our narrow tunnels. It fits where other trucks can't go, and the wet brakes give us confidence on the ramps. The maintenance is straightforward — our mechanics can work on it with basic tools. For small mines, this is a practical solution that doesn't overcomplicate things." — Mine Operations Manager, small-scale copper mine

Related Equipment

Looking for other underground solutions? Explore Beijun's full lineup:

• Wet Shotcrete Machines – for ground support and tunnel lining

• Wheeled Rock Drilling Jumbos – for fast, accurate drilling

• Truck Mounted Aerial Platforms – for overhead work and maintenance

• 3.5 Ton Mining Truck – compact haulage for narrow tunnels

Contact Beijun Group

Email: beijun@beijun-group.com
   Phone: +86 17854788133
   Website: www.beijun-group.com
   Address: Beijun Industrial Park, Jining, Shandong, China

For more information about the 3.5-ton mining truck or other equipment, contact our team for specs and pricing.