3-Axle Dropside Trailer – The Versatile Cargo Carrier

Multi-purpose transport solution with drop-side walls for bulk, bagged, and containerized cargo

Product Overview

Prime Mover Industries introduces its 3-Axle Dropside Semi-Trailer – a versatile, multi-purpose transport solution that bridges the gap between flatbed and enclosed trailer capabilities. Unlike standard flatbeds, this dropside trailer features hinged side walls that can be opened or removed, providing the flexibility to transport bulk cargo, bagged goods, construction materials, agricultural products, and ISO containers – all on a single platform.

Designed with a 1,000–1,250mm sidewall height and a 50–60 ton payload capacity, this tri-axle dropside trailer is the preferred choice for logistics companies seeking maximum cargo versatility. The drop-side walls prevent material spillage during transit while enabling rapid loading and unloading from the sides when opened. With the addition of ISO twist locks, the trailer can also transport 2×20ft or 1×40ft containers.

The tri axle dropside trailer has lightweight design, durable. The body is light in weight and has a strong load capacity 50ton.

Key Specifications

Specification	Details
Model	TDS-3A-50T Dropside Trailer
Overall Dimension (L×W×H)	12,500 × 2,500 × 3,260 mm
Sidewall Height	1,000 – 1,250 mm (customizable up to 2,200mm)
Loading Capacity	≤ 50 – 60 tons
Tare Weight	Approx. 7,600 – 8,200 kg
Number of Axles	3
Axle Capacity	3 × 13T / 16T
Axle Brand	FUWA / BPW / TITAN / customer-specified
Main Beam Material	Q345B high-strength steel, 500mm height
Main Beam Plates	Top: 14mm, Middle: 8mm, Bottom: 16mm
Side Beam	16–18mm steel channel, Q235 steel
Bottom Platform	3mm-thick checkered plate
King Pin	JOST, 2″ (50mm) or 3.5″ (90mm), bolted or welded
Landing Gear	JOST D200T 28-ton two-speed
Suspension	Mechanical leaf spring (10–12 layers)
Tires	12 units, 12.00R22.5 or 315/80R22.5
Brake System	Dual-line pneumatic, WABCO RE6 relay valve
Twist Locks	4, 8, or 12 sets (lifting or screw type)
Voltage	24V with 7-pin ISO socket
Lighting	LED lights
ABS	Optional
Surface Treatment	Sandblasted + 1 coat primer + 2 top coats
Certifications	ISO 9001, CCC

What Is a Dropside Trailer?

A dropside trailer features hinged side walls that can be opened, folded down, or completely removed, offering several operational advantages over conventional trailers:

Drop-Side Walls – The Defining Feature

The side walls of a dropside trailer are mounted on heavy-duty hinges, allowing them to be:

• Fully opened – swung down to create a flat loading surface for side-loading operations
• Partially opened – sections can be opened individually for selective access
• Removed entirely – transforming the trailer into a flatbed for oversized cargo

This flexibility makes the dropside trailer one of the most adaptable cargo carriers on the market, capable of handling everything from bulk aggregates to palletized goods and ISO containers.

Checkered Plate Floor – Stability for Bulk Cargo

The 3mm-thick checkered plate floor provides superior grip and stability for bulk cargo – including bagged goods, sand, gravel, and long materials. The textured surface prevents cargo from shifting during transit, reducing the risk of damage and improving load security.

Design & Construction

High-Strength Steel Chassis

The backbone of our dropside trailer is a robust chassis fabricated from Q345B high-strength low-alloy steel. The main beams feature a 500mm-deep I-section design with optimized plate thicknesses:

• Top flange: 14mm
• Web: 8mm
• Bottom flange: 16mm

This engineering delivers exceptional torsional resistance and load-bearing capacity – essential for the heavy, concentrated loads typical of bulk cargo transport.

The side beams are constructed from 16–18mm steel channel (Q235 steel), providing robust support for the side wall panels.

Drop-Side Wall System

Our dropside walls are engineered for durability and ease of operation:

• Heavy-duty hinges – designed for frequent opening and closing cycles
• Positive locking mechanisms – secure side walls during transit
• Quick-release operation – enables rapid loading and unloading
• Reinforced panels – resist bending and damage from bulk cargo

Side wall heights are available from 1,000mm to 1,250mm as standard, with custom heights up to 2,200mm available.

Premium Component Integration

We equip every dropside trailer with world-class components from trusted global brands:

Component	Specification	Brand
King Pin	2″ or 3.5″	JOST
Landing Gear	28-ton two-speed	JOST D200T
Axles	13T / 16T	FUWA / BPW / TITAN
Brake Valve	Dual-line pneumatic	WABCO RE6
Brake Chambers	T30/30 spring brake	TKL brand
Tires	12.00R22.5 / 315/80R22.5	Premium brand

These premium components ensure reliable performance, easy parts availability, and reduced total cost of ownership.

Comprehensive Surface Protection

Every trailer undergoes a thorough finishing process:

• Sandblasting for superior surface preparation
• Anti-corrosion primer – one coat
• High-durability top coats – two finish coats

For enhanced rust resistance, shot blasting and polyester paint spraying are also available. This three-stage process ensures long-lasting protection against rust and corrosion.

3-Axle Configuration

The tri-axle configuration delivers superior load distribution and stability for heavy cargo transport:

Feature	Benefit
Weight Distribution	Three axles distribute the 50–60 ton payload evenly, reducing stress on individual components
Road Stability	Enhanced stability for tall, heavy cargo – critical for highway and uneven terrain
Braking Performance	Dual-line air brake system with WABCO valves across all three axles
Tire Longevity	Load spread across 12 tires, extending service life
Regulatory Compliance	Tri-axle configuration meets weight distribution requirements in most jurisdictions

Enhanced Suspension

The heavy-duty mechanical suspension features 10–12 layers of leaf springs (90mm × 13mm or 100mm × 12mm), designed for heavy-duty loading and overseas market requirements. Optional airbag suspension is available for applications requiring enhanced ride quality.

Applications – One Trailer, Endless Possibilities

The 3-axle dropside semi-trailer serves a wide range of industries and cargo types:

Industry	Typical Cargo	Why Dropside
Construction	Sand, gravel, crushed stone, demolition debris	Side walls prevent spillage; open for rapid unloading
Building Materials	Steel beams, rebar, concrete pipes, precast slabs	Removable walls accommodate oversized components
Agriculture	Bagged grains, fertilizers, livestock feed, produce	High side walls maximize stacking capacity
Timber	Logs, lumber, palletized goods	Open sides enable forklift loading from both sides
Logistics	Palletized cargo, general freight	Versatile platform for diverse cargo types
Container Transport	1×40ft or 2×20ft ISO containers	Optional twist locks enable container transport
Bulk Cargo	Bagged cement, poultry, bulk materials	Checkered plate floor ensures cargo stability

The Dropside Trailer for Sale was popular by logistics companies as its multipurpose application.

Container Transport Capability

With the addition of ISO twist locks, our dropside trailer transforms into a container carrier:

• 8 or 12 twist locks – lifting or screw type
• 1×40ft container – using all locks
• 2×20ft containers – using separate lock sets

When transporting containers, the side walls can be removed to create a flat platform. This dual-purpose capability eliminates the need for separate container chassis, reducing fleet complexity and capital investment.

Customization Options

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

• Side wall height – 600mm to 2,200mm
• Side wall configuration – drop-side, full-side opening, or fixed panels
• Axle brands – FUWA (standard), BPW, TITAN, or customer-specified
• Axle capacity – 13T or 16T per axle
• Suspension – Mechanical leaf spring (standard) or airbag suspension
• King pin – 2″ or 3.5″, bolted or welded
• Tire specifications – 12.00R22.5 or 315/80R22.5
• Brake system – Standard dual-line or EBS with ABS
• Twist locks – 4, 8, or 12 sets
• Color – Any RAL code
• Additional features – Toolboxes, spare tire racks, LED lighting, GPS tracking

Quality Assurance & Certifications

• ISO 9001:2015 – Quality Management System
• CCC – China Compulsory Certification
• 100% factory inspection – Every unit undergoes load test, brake test, and dimensional verification
• Third-party inspection – Available via BV, SGS, or TÜV at customer request
• Laser cutting technology – Cutting precision with error less than 0.01mm

Why Choose Prime Mover Industries?

Advantage	Benefit
Multi-Purpose Versatility	One trailer handles bulk cargo, bags, containers, and oversized freight
Drop-Side Flexibility	Open, fold, or remove side walls for any loading scenario
High-Strength Engineering	Q345B steel with optimized plate thicknesses for heavy loads
Premium Components	JOST, WABCO, FUWA/BPW – lower TCO and readily available spare parts
Proven Durability	Sandblasted, primed, and double-coated for corrosion resistance
Precision Manufacturing	Laser cutting with < 0.01mm error
Global Export Track Record	Shipped to customers across Africa, Southeast Asia, and South America
Short Lead Times	20–30 days for standard orders
Competitive Pricing	Advanced manufacturing with cost-efficient production

Technical Specifications Summary

Parameter	Value
Length	12,500 mm
Width	2,500 mm
Height	3,260 mm
Sidewall Height	1,000 – 1,250 mm (customizable)
Tare Weight	~7,600 – 8,200 kg
Max Payload	50 – 60 tons
Axles	3 × 13T / 16T
Suspension	Mechanical / Air (optional)
Main Beam	Q345B steel, 500mm height
Flooring	3mm checkered plate
King Pin	JOST 2″ or 3.5″
Brake System	WABCO dual-line
Twist Locks	4, 8, or 12 sets
Tires	12.00R22.5 / 315/80R22.5 (12 pcs)
Certifications	ISO 9001, CCC