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STU Trailers

STU TRAILERS®

Smart. Tailored. Unbreakable.

Ingenious Engineering

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Built for professionals on the roads.STU Trailers is a Turkish manufacturer of lowbed, low-loader and special semi-trailers, designing and manufacturing in-house for the stability, durability and reliability demanding transport operations require.This is STU Trailers.
Lowbed Trailers

Lowbed Trailers

Built for the exceptional loads.

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Lowbeds

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Low-Profile Loading Deck

Low-Profile Loading Deck

Ultra-low deck height for transporting oversized heavy machinery up to 100 tons.

Hydraulic Ramps

Hydraulic Ramps

Powered rear ramps for safe drive-on loading of tracked and wheeled equipment.

Extendable Frame

Extendable Frame

Telescopic extension for accommodating varying load lengths without additional trailers.

Hydraulic Steering Axles

Hydraulic Steering Axles

Independent steering for tight turning radius and precise maneuvering on job sites.

Different Brand Axles Are Suitable

Different Brand Axles Are Suitable

SAF, GIGANT, BPW and TRAX axle options are available by specification.

Low Loader Trailers

Low Loader Trailers

Load what you need; Heavy, Long, Wide Loads

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Low Loader Trailers

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Detachable Gooseneck

Detachable Gooseneck

Quick-release hydraulic gooseneck for front-loading oversized equipment.

Multi-Axle Configuration

Multi-Axle Configuration

3-axle setup with independent suspension for optimal weight distribution up to 150 tons.

Outrigger Stabilizers

Outrigger Stabilizers

Hydraulic outriggers for stable loading and unloading on uneven terrain.

Full LED Marker Lights

Full LED Marker Lights

Complete side marker and tail light system for safe wide-load transport.

Desks on Extendable Platforms

Desks on Extendable Platforms

Different Loads need different solutions on low loader trailers.

Different Brand Axles Are Suitable

Different Brand Axles Are Suitable

SAF, GIGANT, BPW and TRAX axle options are available by specification.

Car Transporter Trailer

Car Transporter Trailer

The smart way to transport with 6 car carrier.

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Car Transporter

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Full Hydraulic Loading System

Full Hydraulic Loading System

Precision-engineered hydraulic platform for smooth, safe vehicle loading and unloading.

MC700 Steel Frame Construction

MC700 Steel Frame Construction

High-strength steel delivers maximum load capacity with minimum weight.

Adjustable Wheel Chocks

Adjustable Wheel Chocks

Secure every vehicle in place with precision-positioned wheel restraints.

Integrated LED Lighting

Integrated LED Lighting

Full LED light package for maximum road visibility and safety compliance.

Ultimate Transport on Decks

Ultimate Transport on Decks

Scissors on middle deck

Tele Radio Remote Control

Tele Radio Remote Control

It is very easy to control all decks and extensions with remote control.

Different Brand Axles Are Suitable

Different Brand Axles Are Suitable

SAF, GIGANT, BPW and TRAX axle options are available by specification.

Commercial Drawbar Trailers

Commercial Drawbar Trailers

Drawbar Trailers for Commercial Transport

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Drawbar Trailer Engineering & Features

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Heavy-Duty Chassis Engineering

Heavy-Duty Chassis Engineering

STU drawbar trailers are engineered for commercial transport applications with durable chassis structures, configurable dimensions and application-specific payload requirements.

Flexible Transport Configurations

Flexible Transport Configurations

Available configurations can be adapted to cargo type, loading method, route conditions and local transport regulations for efficient daily fleet operations.

Axle, Suspension & Braking Systems

Axle, Suspension & Braking Systems

Axle, suspension and braking configurations are selected according to operating conditions, required payload, road regulations and customer specifications.

Built for European Transport Operations

Built for European Transport Operations

Designed for demanding commercial transport operations across Europe and international markets, with configurations tailored to customer, cargo and destination requirements.

Concrete Mixer Trailers

Concrete Mixer Trailers

Pouring the foundations of the future, together.

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Concrete Mixer

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Reinforced Drum Design

Reinforced Drum Design

Heavy-duty mixer drum built for continuous operation under extreme conditions.

PMP Hydraulic Motor

PMP Hydraulic Motor

Premium hydraulic motor for precise mixing speed control and reliable discharge.

Heavy-Duty Chassis

Heavy-Duty Chassis

ST52/MC700 steel subframe engineered for 8–14 m³ payload capacity.

Water Tank & Discharge System

Water Tank & Discharge System

Integrated water supply and controlled discharge chute for on-site flexibility.

More easy with Light Management Buttons panel

More easy with Light Management Buttons panel

Design that shines, day and night.

With Buttons Drum Turning Way and Speed Management

With Buttons Drum Turning Way and Speed Management

Buttons for drum management.

Different Brand Axles Are Suitable

Different Brand Axles Are Suitable

SAF, GIGANT, BPW and TRAX axle options are available by specification.

Platform Trailers

Platform Trailers

Engineered to deliver.

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Flatbed

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Reinforced Platform Trailer Deck.

Reinforced Platform Trailer Deck.

Full-length steel deck designed for versatile cargo loading up to 30 tons.

Aluminium Side Walls on highway.

Aluminium Side Walls on highway.

Safety always first, Strong Side doors keep your loads on the roads.

Mechanic Steering Last Axle

Mechanic Steering Last Axle

Turning on corners is not a big deal with Mechanic Steering System.

Different sizes for different loads

Different sizes for different loads

Loading master with container locks 20ft,30ft and 40ft Containers.

Twist-Lock Container Mounts

Twist-Lock Container Mounts

Standard ISO twist-locks for secure container transport compatibility.

Choose your side; Plywood or Tropical Woods?

Choose your side; Plywood or Tropical Woods?

You have different options and solutions.

Different Brand Axles Are Suitable

Different Brand Axles Are Suitable

SAF, GIGANT, BPW and TRAX axle options are available by specification.

Tipper Trailers

Dump smarter. Work faster. Heavy-duty tipper trailers for bulk transport.

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Tipper Trailers

Sidelifter

Lift, load,and deliver. Sidelifter trailers for efficient container handling.

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Sidelifter

Reel Cable Roller Trailer

Reel cable roller trailers; change your city's electrical infrastructure

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Reel Cable Roller Trailer

Custom Engineering

Beyond standard trailers. Engineered solutions for unique transport challenges.

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Custom Engineering

STU Trailers at a glance

Founded
2018
Industry experience
20 years
Production facility
3,000 m²
Export markets
60 countries

Standards & compliance

  • ISO 9001
  • ISO 14001
  • SA8000
  • TÜV
  • TÜV-CERT VDI 2700
  • CE
  • COC

Product Catalog

Browse every STU TRAILERS® model in a single PDF — specs, options, and variants laid out for quick reference.

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Car Transporter trailer capacity ranges from 1 to 6 vehicles (12–20t) using ST52/MC700 steel with full hydraulic loading system.

Concrete Mixer capacity ranges from 8 to 14 m³ with integrated mixing and discharge hydraulic systems, built on ST52/MC700 steel.

Flatbed trailers support 25–30 tons general cargo capacity with on-demand hydraulic features, constructed from ST52/MC700 steel.

Lowbed trailers handle 60–100 tons with mechanical axle systems, built from MC700 high-strength steel for heavy machinery transport.

Low Loader trailers support 80–150 tons with detachable gooseneck hydraulics, designed for oversized load transport using MC700 steel.

The core chassis is engineered using S355J2+N high-strength steel. For higher tensile strength and up to 30% weight reduction, Strenx 700E (MC700) is available as an optional upgrade.

Hot-dip galvanization creates a metallurgical bond between zinc and steel, providing superior corrosion resistance compared to paint or powder coating.

All trailers are available with air suspension, mechanical or drum brake options, and comply with European road safety regulations.

What is the 2-Axle Car Transporter Semi Trailer? The 2-Axle Car Transporter Semi Trailer is a specialized heavy-duty commercial vehicle designed to transport up to six cars simultaneously. It is the 'next generation' of car carrier engineering, introduced on July 30, 2024, focusing on durability and precision logistics. Three-deck system with independent multi-stage hydraulic cylinders: Deck 1 (Gooseneck) with worm-screw spindles, Deck 2 (Middle) with articulated linkage and extension, Deck 3 (Rear) extendable for oversized loads. Built on S355J2+N steel chassis (Strenx 700E optional), 100% hot-dip galvanized, 32,000 kg max laden mass, two 10-ton Gigant drum axles with EBS braking.

What vehicles can be transported on the 6 Car Transporter? The trailer handles diverse vehicle segments: Heavy SUVs (Segment J) like Mercedes AMG G63, Volvo XC90, Audi Q5; Electric & Executive Cars (Segment E) like Tesla Model S, Mercedes E200; Sports Cars (Segment S) like Maserati GranTurismo; and Standard Family Cars (Segment C) like Audi A3. Hydraulic deck system and 32,000 kg capacity allow versatile multi-segment loading configurations. 1,500 mm hydraulic rear bumper extension and aluminium inner ramps create shallow approach angle for low-clearance vehicles.

What steel grades are used in the trailer construction? The core chassis is engineered using S355J2+N high-strength steel to ensure durability under heavy loads. For projects requiring even higher tensile strength and weight reduction (up to 30%), we also offer Strenx 700E (or MC700) as an optional upgrade. S355J2+N provides 355 MPa minimum yield strength. Strenx 700E offers 700 MPa yield strength for maximum strength-to-weight ratio.

How is the chassis protected against corrosion? Hot-dip galvanising is used for long-term corrosion protection; actual service life depends on environment, use and maintenance, and warranty coverage is defined only by the signed contract. This provides long-term protection against environmental wear and rust. Hot-dip galvanization creates a metallurgical bond between zinc and steel, providing superior corrosion resistance compared to paint or powder coating.

How has the hydraulic system been upgraded in the latest generation? We have transitioned from GMS to next-generation Walvoil electro-hydraulic valves for a smoother, more stable operating experience. Additionally, we replaced Rekorsan fittings with Hansa-Flex fittings, ensuring leak-free confidence and more secure sealing under real-world conditions. Walvoil units offer compact architecture and exceptional stability. Hansa-Flex fittings are designed for heavy-duty hydraulic applications.

What type of power unit drives the hydraulic system? The trailer is powered by a Bucher 4.3kW powerpack featuring a 70-liter oil tank. It includes an electronic oil-level sensor and is housed in a unit with side-sliding covers for easy maintenance access even when coupled to a tractor. Bucher Hydraulics is a Swiss manufacturer known for precision hydraulic components used in professional transport applications.

How are the platforms controlled? All hydraulic functions are operated wirelessly via Tele-Radio remote controllers. The system is PLC-controlled and features a 7-inch touch display that provides real-time process monitoring and operational feedback. Programmable Logic Controller (PLC) enables precise sequencing and safety interlocks for all hydraulic operations.

What is the operating pressure and speed of the hydraulic system? The system operates at a pressure of 210 bar, utilizing independent 3-stage multi-stage cylinders to control each deck. This architecture allows for a lift speed of approximately 45 seconds per deck, ensuring rapid loading cycles. Multi-stage cylinders provide extended stroke length while maintaining compact retracted dimensions.

How does the Gooseneck Platform (Deck 1) achieve precise positioning? The Gooseneck platform is not just hydraulically lifted; it is supported by worm-screw spindle mechanisms integrated directly into the gooseneck framework. This hybrid system ensures maximum stability and precise height adjustment for the first vehicle load. Worm-screw spindles provide mechanical locking and fine adjustment capabilities independent of hydraulic pressure.

What prevents hydraulic leaks under heavy vibration? We have upgraded the hydraulic infrastructure to use Hansa-Flex fittings (replacing Rekorsan). These are specifically selected to seal more securely under real-world conditions, providing a quieter, cleaner, and leak-free confidence during transport. Hansa-Flex fittings feature precision-machined sealing surfaces and high-grade materials for vibration resistance.

What safety mechanisms prevent platform failure? We have replaced older mechanically-locked cylinders with a new dual-safety hydraulic valve architecture. This reduces manual steps and increases reliability. Furthermore, the system includes limit sensors on the spindle systems to shield components from unexpected strain. Dual-safety valves provide redundant protection against uncontrolled platform descent.

What is the lifting capacity of the platforms? Each of the three platforms provides an independent lifting capacity of 4,000 kg. The trailer has a technically permissible maximum laden mass of 32,000 kg. Independent hydraulic circuits allow simultaneous or sequential platform operation based on loading requirements.

What are the specifications of the loading winches? The trailer is equipped with two hydraulic winches (positioned front and rear), each rated at 4-ton capacity. They come with 25 metres of steel rope, integrated safety valves, and emergency stop mechanisms. Hydraulic winches provide variable speed control for precise vehicle positioning on steep loading angles.

Can the operator monitor the system status remotely? Yes. The operation is managed via a PLC-controlled Tele-Radio wireless remote that features an integrated 7-inch touch display. This interface provides real-time process monitoring, feedback, and seamless control over the electro-hydraulic valves. Touch display shows hydraulic pressure, platform positions, and system diagnostics in real-time.

How does the lighting system support night operations? Beyond standard road compliance, the trailer is equipped with 6 working LED lights specifically positioned to illuminate the workspace. The entire suite has been upgraded to Aspöck systems, featuring dynamic rear stop lamps and high-visibility side markers to ensure safety in all conditions. Aspöck LED lighting provides improved durability, lower power consumption, and consistent illumination across temperature ranges.

Does the trailer require frequent greasing? Maintenance requirements are minimized significantly. All articulated joints are fitted with IGUS TX1 fibre bushings (sourced from Germany), which allow for grease-free operation. Additionally, platform extensions slide on polyamide sheets for smooth, maintenance-free movement. IGUS TX1 bushings are self-lubricating polymer bearings designed for high-load, low-maintenance applications.

What axles and braking systems are used? The trailer runs on two 10-ton Gigant drum axles with air suspension. Braking is managed by a Wabco or Knorr-Bremse 2S-2M EBS configuration, featuring automatic slack adjusters for enhanced safety. EBS (Electronic Braking System) provides faster response times and improved brake force distribution compared to conventional systems.

What lighting system is equipped on the trailer? We have upgraded from Fristom to a complete Aspöck LED lighting suite. This includes dynamic rear stop lamps, side markers, and 6 working LED lights, providing brighter, more consistent illumination and a cleaner design. Full LED configuration reduces power draw and extends bulb life to 50,000+ hours.

How accessible is the power unit for maintenance? The Bucher powerpack is housed in a unit with side-sliding covers. This design allows mechanics to access the oil tank, filters, and connection hub effortlessly, even when the trailer is still attached to the tractor, minimizing downtime. Slide-access design eliminates the need to disconnect from tractor for routine maintenance tasks.

Do the slide-out platforms require regular lubrication? No. The platform extensions slide on polyamide sheets, and articulated joints are fitted with IGUS TX1 fibre bushings sourced from Germany. These components are designed for grease-free operation, significantly reducing long-term maintenance needs. Polyamide (PA6) sheets provide low friction coefficient and excellent wear resistance under heavy loads.

Is the trailer suitable for loading low-clearance sports cars? Yes. The trailer is engineered to accommodate Segment S (Sports Cars), such as the Maserati GranTurismo. The hydraulic rear bumper extension (1,500 mm) and manually extendable aluminium inner ramps provide a shallow approach angle for smooth entry. Approach angle optimized for vehicles with ground clearance as low as 100mm.

Can the trailer handle heavy SUVs and Electric Vehicles (EVs)? Absolutely. The chassis is optimized for Segment J (SUVs) like the Mercedes AMG G63 and Segment E (Electric) like the Tesla Model S. The 32,000 kg max laden mass and high-strength steel construction ensure it can handle the heavier curb weights associated with modern EVs and SUVs. Platform spacing and deck heights configurable for optimal multi-vehicle loading combinations.

What electrical connections does the truck require? The trailer requires a 24V / 200A NATO socket with a spring cable for the high-current connection needed to run the power pack. It also utilizes 2x7-pin sockets (or a 15-pin socket) for standard lighting and signaling connections. NATO socket provides robust, military-grade connection rated for continuous high-current draw in all weather conditions.

What is the capacity of the on-board air tanks? The braking system is supported by an air reservoir configuration of 80L + 80L + 1L (filter tank). The electrical system runs on a 24V architecture compliant with SAE standards. Dual 80L tanks ensure adequate air supply for multiple brake applications even in emergency situations.

What is Hardox steel and where is it used in trailers? Hardox is a wear-resistant steel manufactured by SSAB, specifically designed for applications requiring exceptional abrasion resistance. Grades vary from 400 to 500 HBW. Typical applications include dump truck bodies and loader buckets. Service life can be 3-5 times longer than conventional steel.

What are the welding requirements for high-strength steels? High-strength steels require specialized welding procedures to maintain mechanical properties and prevent defects, including preheating for thicknesses > 20mm. Welding procedures must be qualified according to EN ISO 15614. Heat input typically limited to 0.8-2.5 kJ/mm.

Get in Touch: +90 541 336 63 77 or sales@stutrailer.com. Fevziçakmak, 10664. Sk. No:30/1, 42050 Karatay/Konya
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