New Castromax CST-MXE- 5 AXLES EXTENDABLE LOWBED low bed semi-trailer
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84-TONNE · 5-AXLE · 5 M EXTENDABLE · 2 SELF-STEERING AXLES
NEW PRODUCTION · DIRECT FROM THE MANUFACTURER · CE DOCUMENTATION
(PLEASE FIND OUR CATALOGUE ATTACHED IN YOUR LANGUAGE)
Built for demanding heavy-haul operations, the CASTROMAX® CST-MXE 5 LOWBED combines an 84,000 kg payload capacity, five 12-tonne axles, a 5,000 mm staged telescopic extension and two self-steering axles.
Designed for transporting heavy construction machinery, oversized industrial loads and other demanding cargo, the CST-MXE 5 provides a 9,600 mm loading platform that extends to 14,600 mm, giving operators additional loading length when required without sacrificing the strength and stability expected from a five-axle heavy-haul platform.
With two self-steering axles, air suspension, a hydraulic gooseneck, hydraulic bi-fold loading ramps and staged extension control, the CST-MXE 5 is engineered for operators who need high payload capacity, additional loading length and practical manoeuvrability.
CORE SPECIFICATIONS
• Model: CST-MXE 5 LOWBED
• Production year: 2026
• Condition: New
• Payload capacity: 84,000 kg
• Axles: 5 × 12,000 kg
• Steering: 2 self-steering axles
• Maximum self-steering angle: 16°
• Suspension: Air suspension
• Telescopic extension: 5,000 mm
• Extension control: Staged
• Mechanical width extension: 500 mm total
• Loading method: Rear loading
• Gooseneck: Hydraulic
• Kingpin: 2-inch / 3.5-inch
• Braking: WABCO 4S3M EBS + ABS
• Tyres: 245/70 R17.5
• Wheels: 20 + 1 spare
• Rims/Tyres: JANTSA / PETLAS
• Electrical system: 24 V, 2 × 7-pin SAE
• Lighting: SABA LED
• TPMS: Tyre-pressure monitoring system
• Colour: Customer-specific colours available
DIMENSIONS
• Overall length: 14,600 mm
• Overall length when extended: 19,600 mm
• Platform length: 9,600 mm
• Platform length when extended: 14,600 mm
• Telescopic extension stroke: 5,000 mm
• Loading platform width: 3,000 mm
• Mechanical width extension: 500 mm total
• Maximum loading width with extensions: approximately 3,500 mm
• Platform height: 900 mm
• Gooseneck total height: 1,450 mm
• Gooseneck length: 4,375 mm
• Axle spacing: 1,500 mm
• Front swing width: 1,450 mm
• Rear swing width: 2,130 mm
Dimensions can be revised according to customer requirements and must be confirmed when placing the order.
5-METRE TELESCOPIC EXTENSION
The CST-MXE 5 LOWBED is equipped with a 5,000 mm telescopic platform extension.
In standard transport configuration, the loading platform measures 9,600 mm.
When fully extended, the loading platform reaches 14,600 mm and the total trailer length increases from 14,600 mm to 19,600 mm.
The extension operates in stages, allowing the trailer configuration to be adapted according to the dimensions and weight distribution of the cargo being transported.
STAGED TONNAGE CAPACITY
The extension system is designed around controlled payload stages according to the operating position of the telescopic platform.
The catalogue specifies staged load capacities of:
• 84 tonnes
• 76 tonnes
• 69.5 tonnes
• 64 tonnes
• 59 tonnes
• 55 tonnes
This allows the operator to match the usable payload capacity to the selected extension position and load distribution.
AXLE CONFIGURATION AND MANOEUVRABILITY
The CST-MXE 5 uses five 12-tonne axles with air suspension.
Two axles are equipped with self-steering, providing improved manoeuvrability compared with a fully fixed five-axle configuration.
The self-steering system allows steering angles of up to 16°, helping reduce tyre scrub during cornering and improving the trailer's behaviour in tighter operating environments.
For a high-capacity five-axle trailer, this configuration provides an effective balance between axle-group stability, manoeuvrability and straightforward operation.
MECHANICAL PLATFORM WIDTH EXTENSION
The standard loading platform is 3,000 mm wide.
A mechanical side-extension system provides an additional 500 mm of total width.
With the mechanical extensions deployed, the usable loading width can increase to approximately 3,500 mm.
This provides additional support for wider tracked machinery, construction equipment and oversized loads without permanently increasing the basic platform width.
HYDRAULIC GOOSENECK
The CST-MXE 5 is equipped with a hydraulic gooseneck.
The coupling configuration supports 2-inch or 3.5-inch kingpin arrangements.
The hydraulic system provides operational control of the gooseneck configuration as part of the trailer's heavy-duty loading architecture.
REAR HYDRAULIC LOADING RAMPS
The trailer is equipped with hydraulic bi-fold rear loading ramps.
The ramp geometry provides an approximately 10° approach angle for machinery loading.
The hydraulic folding system allows the ramps to be deployed and returned to transport position efficiently, supporting regular loading of construction machinery, tracked equipment and other heavy plant.
CHASSIS AND MATERIALS
The chassis is manufactured using certified high-strength structural steels:
• SSAB S700MC PLUS — high-strength structural steel
• S690QL — high-strength quenched and tempered structural steel
• S355J2+N — structural steel
The chassis architecture is engineered around optimised weight distribution, structural durability and demanding heavy-haul operating conditions.
High-strength materials allow the trailer structure to carry substantial loads while maintaining the strength required for extension-based operations.
PAINT PROTECTION
The chassis and structural surfaces undergo an industrial surface-treatment process consisting of:
• Sandblasting
• Anti-corrosion epoxy primer
• Two-component acrylic paint
Customer-specific colour configurations can be supplied according to order requirements.
BRAKING AND SAFETY SYSTEMS
The CST-MXE 5 is equipped with a WABCO 4S3M EBS braking system with ABS.
The 4S3M architecture provides electronic braking control suited to the five-axle heavy-haul configuration.
The trailer also incorporates TPMS tyre-pressure monitoring, allowing tyre condition to be monitored during operation.
The extension system additionally incorporates spring-brake-chamber extension control as part of the staged telescopic configuration.
STANDARD EQUIPMENT
• 5 × 12-tonne axles
• Air suspension
• 2-axle self-steering system
• Maximum self-steering angle of 16°
• 5,000 mm telescopic platform extension
• Staged extension control
• Controlled staged tonnage capacity
• 500 mm mechanical width extension
• Hydraulic gooseneck
• 2-inch / 3.5-inch kingpin configuration
• Hydraulic bi-fold rear loading ramps
• Approximately 10° loading-ramp approach angle
• WABCO 4S3M EBS braking system
• ABS
• Spring-brake-chamber extension control
• 24 V SABA LED lighting system
• Air suspension
• TPMS tyre-pressure monitoring system
• Remote control via mobile application
• 24 V electrical architecture
• 2 × 7-pin SAE electrical connection
• 245/70 R17.5 tyres
• 20 + 1 wheel configuration
• JANTSA rims / PETLAS tyres
• Sandblasted chassis
• Epoxy primer
• Two-component acrylic paint
SMART REMOTE CONTROL
Trailer functions can be operated through a remote-control system.
The CST-MXE 5 also supports wireless operation through a touch panel and mobile application, providing practical control of relevant hydraulic and extension functions during loading and configuration.
This allows the operator to manage important trailer functions while maintaining visibility around the vehicle and cargo.
OPTIONAL / CUSTOMER-SPECIFIC CONFIGURATION
CASTROMAX® trailers can be configured according to customer operating requirements.
Possible customer-specific requirements can include:
• Alternative dimensions
• Special colour configurations
• Additional load-securing equipment
• Customer-specific loading solutions
• Special machinery-transport equipment
• Other project-specific engineering requirements
Dimensions and configuration must be confirmed during the order stage.
DOCUMENTATION AND COMPLIANCE
CASTROMAX® manufacturing and compliance references include:
• ISO 9001
• ISO 14001
• ISO 45001
• EN ISO 3834-2 welding compliance
• EN 12642 XL body-strength / load-securing standard
• CE marking
Full technical configuration and documentation are prepared according to the ordered trailer specification.
COMMERCIAL TERMS
• Price: On request
• Delivery terms: To be confirmed according to destination
• Production configuration: New production directly from CASTROMAX®
• Final dimensions: Confirmed according to customer requirements before production
AFTER-SALES SUPPORT
CASTROMAX® trailers are designed around a demountable and service-friendly architecture intended to simplify long-term maintenance, component replacement and spare-parts supply.
Technical configuration, spare-parts requirements and customer-specific engineering support can be coordinated directly with CASTROMAX®.
The CASTROMAX® CST-MXE 5 LOWBED is engineered for operators who need serious payload capacity combined with additional loading length.
84-tonne payload.
Five 12-tonne axles.
5-metre telescopic extension.
14.6-metre extended loading platform.
Two self-steering axles.
3-metre-wide platform.
Hydraulic gooseneck.
Staged extension and tonnage control.
A high-capacity extendable heavy-haul platform engineered for demanding transport operations.
Send us the dimensions and weight of your machinery, your tractor's fifth-wheel height, the required extension configuration, required options and destination country.
CASTROMAX® will prepare the correct technical configuration and commercial quotation for your operation.