80-Ton Four-Axle Low Flatbed Semi-Trailer – The Heavy Equipment Transport Specialist

Engineered for 80-ton payloads with four-axle stability, low-profile design, and gooseneck construction

Product Overview

Prime Mover Industries presents its 80-Ton Four-Axle Low Flatbed Semi-Trailer – a heavy-duty transport solution purpose-built for the safe and efficient movement of the world‘s heaviest equipment. From excavators and bulldozers to mining machinery, wind turbine components, and industrial transformers, this four-axle low flatbed is engineered to handle the most demanding heavy haulage operations with confidence and reliability.

Low flatbed semi-trailers are the preferred choice for transporting heavy-duty vehicles and oversized machinery. What sets this 80-ton four-axle model apart is its low-profile deck, which significantly lowers the center of gravity, delivering superior stability and safety during transit. The reduced deck height also enables the transport of tall, oversized cargo through height-restricted bridges, tunnels, and overpasses – a capability that standard flatbed trailers cannot match.

With four axles distributing the massive 80-ton load across 16 heavy-duty tires, this trailer delivers exceptional weight distribution, reduced per-axle stress, and enhanced road stability that inspires confidence on every journey.

Key Specifications

Specification	Details
Model	PMI-4A-80T Heavy-Duty Low Flatbed
Overall Length	13,000 – 15,000 mm (customizable)
Overall Width	3,000 – 3,500 mm
Overall Height	1,650 – 1,800 mm
Loading Platform Height	1,100 – 1,250 mm (low-profile design)
Number of Axles	4
Axle Capacity	4 × 13–16 tons
Max. Payload	80 tons
Tare Weight	Approx. 10,500 – 13,300 kg
Main Beam Material	Q345B / Q355 high-strength steel
Main Beam Specification	Height: 500mm; Top flange: 18–20mm; Web: 10–12mm; Bottom flange: 18–20mm
Floor	3–5mm diamond/checkered plate
King Pin	JOST, 2″ (50mm) or 3.5″ (90mm)
Landing Gear	JOST 28-ton, two-speed
Suspension	Heavy-duty mechanical leaf spring (10 layers, 90×13mm) – Air suspension optional
Axle Brand	FUWA / BPW / Zhengyang (13–16 ton)
Tires	12R22.5 or 11.00R20, 16 units
Brake System	Dual-line pneumatic, WABCO valves
Ramps	Mechanical or hydraulic loading ramps
Electrical System	24V with 7-pin ISO socket
Certifications	ISO 9001, CCC, ECE, GCC, DOT, CE

The Gooseneck Advantage – Purpose-Built for Heavy Equipment

The defining feature of this 80-ton low flatbed is its gooseneck construction – a raised front section that connects to the tractor’s fifth wheel, while the middle section forms the low-profile cargo platform. This stepped frame design with I-section longitudinal beams delivers high rigidity and strength, capable of withstanding the extreme point loads imposed by tracked and wheeled heavy machinery.

Fixed vs. Removable Gooseneck

We offer two gooseneck configurations to match your operational requirements:

• Fixed Gooseneck (Standard) – The gooseneck is permanently welded to the platform, providing maximum structural integrity and durability. The connection between the gooseneck and the working plate is reinforced with a web design, enabling the gooseneck to more stably carry large machinery and heavy goods. Loading is performed from the rear using mechanical or hydraulic ramps.
• Removable Gooseneck (Optional) – The gooseneck can be detached from the platform, allowing front-loading of heavy equipment. When large machinery such as heavy excavators need to be transported, they can drive directly onto the trailer from the detachable front end – ensuring safer loading and unloading with reduced risk. This configuration is ideal for equipment with limited ground clearance or climbing ability.

Low-Profile Platform – The Critical Advantage

The loading platform height of just 1,100–1,250mm delivers several critical benefits:

• Lower center of gravity – significantly improves vehicle stability, reducing rollover risk when transporting tall, heavy machinery.
• Height restriction compliance – enables transport of super-tall loads through bridges and tunnels with limited clearance
• Easier loading and unloading – reduced ramp angles make it safer and faster to drive equipment onto the trailer
• Improved aerodynamics – lower profile reduces drag and improves fuel efficiency

The platform features a 3–5mm thick diamond/checkered plate floor, providing superior grip for heavy equipment tracks and tires while preventing cargo shift during transit.

Four-Axle Configuration – The Heavy-Haul Advantage

Four axles are not an arbitrary choice – they are essential for 80-ton heavy equipment transport. Here‘s why:

Feature	Benefit
Superior Weight Distribution	Four axles distribute the 80-ton payload evenly, reducing stress on individual components and road surfaces
Enhanced Road Stability	Extended wheelbase and four-axle layout deliver exceptional stability for tall, heavy machinery
Superior Braking Performance	Dual-line air brake system with WABCO valves across all four axles delivers confident stopping power
Extended Tire Life	Load spread across 16 tires, significantly reducing per-tire wear and replacement costs
Regulatory Compliance	Four-axle configuration meets weight distribution requirements in most jurisdictions
Reduced Per-Axle Stress	Each axle carries less load, extending component life and reducing maintenance costs

Heavy-Duty Suspension

The mechanical leaf spring suspension features 10 layers of springs (90mm width × 13mm thickness), delivering robust load support for heavy-duty operations. Optional air suspension is available for applications requiring enhanced ride quality and cargo protection.

Premium Axle Options

We offer a choice of premium axle brands to match your reliability and parts availability requirements:

• FUWA – Industry-standard reliability with excellent global parts availability
• BPW – Premium European brand known for durability and performance
• Zhengyang – High-capacity 16-ton axles for extreme heavy-haul applications

Each axle is rated at 13–16 tons, with the four-axle configuration delivering a total rated capacity of up to 64 tons – comfortably supporting the 80-ton payload.

High-Strength Steel Chassis – Built to Last

The backbone of this 80-ton low flatbed is a robust chassis fabricated from Q345B or Q355 high-strength low-alloy steel. The main beams feature a 500mm-deep I-section design with optimized plate thicknesses:

• Top flange: 18–20mm
• Web: 10–12mm
• Bottom flange: 18–20mm

The beams are welded using automatic submerged-arc welding processes, delivering superior weld penetration, consistency, and strength compared to manual welding. The frame is designed with a through-beam structure – cross beams pass through the main beams and are welded integrally, providing exceptional torsional resistance and load-bearing capacity for heavy, concentrated equipment loads.

The entire frame undergoes shot blasting or sandblasting for superior surface preparation, followed by electrophoresis or anti-corrosion primer and two high-durability top coats – ensuring long-lasting protection against rust and corrosion in demanding environments.

Premium Component Integration

We equip every 80-ton four-axle low flatbed with world-class components from trusted global brands:

Component	Specification	Brand
King Pin	2″ or 3.5″, bolted	JOST
Landing Gear	28-ton, two-speed	JOST
Axles	13–16 ton capacity	FUWA / BPW / Zhengyang
Brake Relay Valve	Dual-line pneumatic	WABCO
Tires	12R22.5 / 11.00R20	16 units
Outriggers	28-ton capacity	JOST / Yahua

These premium components ensure reliable performance, easy parts availability, and reduced total cost of ownership over the trailer‘s lifetime.

Loading Ramps – Safe and Efficient Equipment Access

The trailer is equipped with heavy-duty loading ramps at the rear, available in two configurations:

• Mechanical Ramps (Standard) – Manually operated spring-assisted ramps that are robust, cost-effective, and reliable. Spring ramps reduce the effort required for deployment and storage.
• Hydraulic Ramps (Optional) – Powered operation for effortless loading and unloading of heavy equipment. Hydraulic ramps are particularly valuable for frequent loading operations and for equipment with limited ground clearance.

Both ramp options are designed to accommodate the track width and ground clearance of excavators, bulldozers, cranes, and other heavy machinery, ensuring safe and efficient loading operations.

Applications – Where 80 Tons and Four Axles Make the Difference

The 80-Ton Four-Axle Low Flatbed Semi-Trailer serves a wide range of heavy transport applications:

Industry	Typical Cargo
Construction Equipment	Excavators, bulldozers, loaders, pavers, graders, cranes
Mining	Crusher components, mining machinery, conveyor sections
Forestry	Heavy forestry machinery, log loaders
Agriculture	Large tractors, combines, agricultural equipment
Industrial Machinery	Generators, transformers, production line equipment
Power Generation	Wind turbine towers, blades, power station equipment
Rail & Special Vehicles	Rail vehicles, buses, special transport vehicles
Steel & Heavy Materials	Steel coils, heavy plates, large tanks
Infrastructure	Bridge girders, precast concrete, highway construction equipment

Key Advantages

Unmatched 80-Ton Payload Capacity

With a maximum payload of 80 tons, this four-axle low flatbed handles the heaviest equipment in the industry – from 80-ton excavators to massive industrial transformers. The four-axle configuration ensures this capacity is delivered with stability and safety.

Low Center of Gravity – Superior Stability

The reduced deck height lowers the center of gravity, providing greater stability when transporting tall, heavy equipment. This is particularly critical for excavators and bulldozers with high centers of gravity, reducing the risk of rollover during cornering and crosswind conditions.

Height Restriction Compliance

The low-profile design enables transport of super-tall loads through bridges, tunnels, and overpasses with limited clearance – a capability that standard flatbed trailers cannot offer.

Four-Axle Stability

Four axles distribute the 80-ton payload evenly, delivering exceptional road stability and reduced per-axle stress. The extended wheelbase improves tracking and handling, particularly important for long-distance heavy haulage.

Easier Loading & Unloading

The low deck height reduces the loading ramp angle, making it safer and faster to drive equipment onto the trailer. Optional removable gooseneck enables front-loading for equipment with limited climbing ability.

Built for the Toughest Conditions

Constructed with Q345B/Q355 high-strength steel and automatic submerged-arc welding, the trailer withstands the rigors of construction sites, mining operations, and demanding road conditions. Comprehensive corrosion protection ensures long service life.

Premium Components – Lower Total Cost of Ownership

JOST kingpin and landing gear, WABCO brakes, and FUWA/BPW axles deliver reliability, easy parts availability, and reduced maintenance costs.

Customization Options

Prime Mover Industries offers extensive customization to match your specific operational requirements:

• Gooseneck type - Fixed (standard) or removable (optional)
• Platform length - 13,000mm to 15,000mm+
• Platform width - 3,000mm to 3,500mm
• Deck height - Customized for specific clearance requirements
• Axle brands - FUWA (standard), BPW, or Zhengyang
• Axle capacity - 13T or 16T per axle
• Suspension - Mechanical leaf spring (standard) or air suspension
• King pin - 2″ or 3.5″, bolted or welded
• Tire specifications - 12R22.5, 11.00R20, or 315/80R22.5
• Brake system - Standard dual-line or EBS with ABS
• Ramps - Mechanical (standard) or hydraulic
• Color - Any RAL code
• Additional features - Toolboxes, spare tire racks, LED lighting, hydraulic gooseneck, outriggers

Quality Assurance & Certifications

• ISO 9001:2015 - Quality Management System
• CCC - China Compulsory Certification
• ISO/TS16949 - Automotive Industry Quality Management
• ECE - European safety and lighting compliance
• GCC - Gulf Cooperation Council market approval
• DOT - US Department of Transportation compliance
• CE - European conformity marking
• 100% factory inspection - Every unit undergoes load test, brake test, and dimensional verification
• Third-party inspection - Available via SGS, BV, or TÜV at customer request

Why Choose Prime Mover Industries?

Advantage	Benefit
Heavy Equipment Specialists	Purpose-engineered for 80-ton excavators, bulldozers, and mining machinery
Four-Axle Stability	Superior weight distribution, road stability, and regulatory compliance
Low-Profile Design	Lower center of gravity, height restriction compliance, easier loading
High-Strength Engineering	Q345B/Q355 steel with automatic submerged-arc welding and shot blasting
Gooseneck Versatility	Fixed or removable gooseneck options for rear or front loading
Premium Components	JOST, WABCO, FUWA/BPW – lower TCO and readily available spare parts
Proven Durability	Comprehensive corrosion protection for demanding environments
Global Export Track Record	Shipped to customers across 5 continents
Short Lead Times	25–35 days for standard orders
Competitive Pricing	Advanced manufacturing with cost-efficient production

Technical Specifications Summary

Parameter	Value
Overall Length	13,000 – 15,000 mm
Overall Width	3,000 – 3,500 mm
Deck Height	1,100 – 1,250 mm
Tare Weight	~10,500 – 13,300 kg
Max Payload	80 tons
Axles	4 × 13–16T (FUWA/BPW/Zhengyang)
Suspension	Mechanical / Air (optional)
Main Beam	Q345B/Q355 steel, 500mm height
Flooring	3–5mm diamond plate
King Pin	JOST 2″ or 3.5″
Brake System	WABCO dual-line
Ramps	Mechanical / Hydraulic
Tires	12R22.5 / 11.00R20 (16 pcs)
Certifications	ISO 9001, CCC, ISO/TS16949, ECE, GCC, DOT, CE