Dayun 4×2 Dump Truck / Compact Dump Truck

I. Product Overview

The Dayun 4×2 dump truck is a compact, highly maneuverable light-duty tipper specifically engineered for underground parking access with an overall height of 2,080 mm. Built on the reliable Dayun chassis and powered by a Yuchai 160 HP engine, this vehicle is ideal for urban construction support, basement excavation, material transport in confined spaces, and municipal maintenance applications. The 2,720 mm short wheelbase and compact dimensions enable exceptional maneuverability in narrow urban streets, underground parking structures, and tight job sites where standard trucks cannot operate. The vehicle features a 3,180 × 1,800 × 600 mm dump body with center-mounted dual lifting cylinders, three-way opening tailgate, and a 270-degree side-opening door for versatile unloading in confined spaces. With factory air conditioning, power windows, central door lock, and remote key, this vehicle combines practical capability with operator comfort.

II. Core Specifications

III. Dimensions, Materials, and Design Concept

Overall Height: 2,090 mm — specifically engineered for underground parking access, enabling operation in basement construction sites, underground garages, and low-clearance facilities

Overall Dimensions: 4,995 × 1,900 × 2,090 mm — compact footprint for urban maneuverability and tight job site access

Wheelbase: 2,720 mm — short wheelbase for exceptional turning radius in confined spaces

Cargo Body: 3,180 × 1,800 × 600 mm steel dump body with reinforced construction for durability

Frame: 760 × 200 × 6 mm engineering-grade frame for optimal strength-to-weight ratio

Design Concept:

The design philosophy centers on height-restricted access, compact versatility, and operator convenience. The 2,090 mm overall height is specifically calibrated for underground parking clearance, enabling direct access to basement construction sites and underground facilities where standard trucks cannot enter. The shortened front and rear axles reduce overall width and turning radius, enhancing maneuverability in narrow urban environments. The three-way opening tailgate with 270-degree side-opening door provides flexible unloading options in confined spaces where traditional tailgates cannot fully open. The center-mounted dual hydraulic cylinders ensure stable, reliable tipping operation even under heavy loads.

IV. Detailed Structure and Component Advantages

Chassis Platform:

The Dayun 4×2 chassis features a 760 × 200 × 6 mm engineering-grade frame specifically designed for dump truck applications. The 2,720 mm short wheelbase provides exceptional maneuverability for underground parking and narrow urban streets. The shortened front axle (2-ton) and shortened rear axle (6-ton) reduce overall width and turning radius, enabling access to confined job sites where standard trucks cannot operate. The 5.286 rear axle gear ratio provides optimal low-end torque for loaded climbing in underground ramps.

Power Train:

The Yuchai YCF25160 160 HP diesel engine delivers reliable power with excellent low-end torque for underground ramp climbing and job site maneuvering. The Fast Gear small 8-speed aluminum alloy gearbox provides smooth shifting and reduced weight compared to cast iron alternatives, contributing to overall fuel efficiency and vehicle agility. The combination ensures adequate power for full loads even on steep underground grades.

Lifting System:

The Φ90 center-mounted dual hydraulic cylinders provide stable, reliable tipping power for the dump body. The center-mounted design ensures balanced lifting and reduces stress on the frame during unloading operations. The system is engineered for durability in demanding construction applications, handling soil, gravel, construction debris, and landscaping materials with ease.

Tailgate Design:

The three-way opening tailgate with 270-degree side-opening door and two flip brackets provides exceptional unloading flexibility in confined spaces. The side-opening door can swing open to 270 degrees, allowing material discharge even when the vehicle is positioned against walls or other obstacles. This design is particularly valuable for basement construction sites and narrow urban job sites with limited maneuverability.

Cab and Comfort:

The cab features factory air conditioning, power windows, central door lock, and remote key, providing operator comfort and convenience for extended working hours. The compact cab design maintains a low overall height while providing adequate headroom and visibility for safe operation in underground environments.

Suspension and Tires:

The 2+3 / 7+6 leaf spring configuration provides optimal load capacity and ride comfort for urban and underground applications. The 7.00R16LT 8PR steel wire tires deliver reliable load capacity and puncture resistance for diverse working conditions, from paved roads to construction sites.

V. Product Features and Manufacturer Advantages

Product Features

Underground Parking Access: The 2,090 mm overall height enables direct access to basement construction sites, underground parking structures, and low-clearance facilities, eliminating the need for secondary material transfer.

Compact Maneuverability: The 2,720 mm short wheelbase and shortened axles provide exceptional turning radius for operation in narrow urban streets, alleyways, and confined job sites.

Flexible Unloading: The three-way opening tailgate with 270-degree side-opening door enables material discharge in confined spaces where traditional tailgates cannot fully open, significantly enhancing job site efficiency.

Powerful Performance: The Yuchai 160 HP engine and Fast Gear small 8-speed transmission deliver reliable power and low-end torque for underground ramp climbing and heavy load operations.

Durable Construction: The 760 × 200 × 6 mm engineering-grade frame, shortened axles, and Φ90 center-mounted dual hydraulic cylinders provide exceptional durability for demanding construction applications.

Operator Comfort: Factory air conditioning, power windows, central door lock, and remote key provide a comfortable work environment, reducing operator fatigue during extended working hours.

Chengli Group Manufacturer Advantages

As a leading Chinese special vehicle manufacturer, Chengli Special Automobile Co., Ltd. delivers comprehensive quality across all production aspects:

• Complete Vehicle Announcements: The DYQ3041D6AB model is included in the national vehicle announcement directory, ensuring legal registration nationwide

• Underground-Specific Engineering: The 2,090 mm overall height and shortened axles are specifically engineered for underground parking access, reflecting Chengli's expertise in specialized vehicle applications

• Reliable Quality: Utilizes Dayun original chassis with Yuchai engine, Fast Gear transmission, and shortened axles for proven powertrain reliability and compact performance

• Tailgate Innovation: The 270-degree side-opening door design represents Chengli's commitment to job site efficiency and operator convenience

• Factory Direct Sales: Direct factory sales model eliminates intermediaries, offering competitive pricing and comprehensive pre-sales and after-sales service

• Nationwide After-Sales Support: Chassis service provided by Dayun service network and superstructure support provided by Chengli technical support and parts supply

This Dayun 4×2 dump truck combines underground parking access, compact maneuverability, and flexible unloading capability, making it the ideal choice for basement construction projects, urban infrastructure development, landscaping companies, and municipal maintenance teams requiring a compact, powerful, and versatile dump truck for confined space operations.