Low loader semi-trailers
ST series

The ST series is DEMARKO's most popular semi-trailers series, with the most versatile characteristics. Combined with a wide range of accessories, it is the series most susceptible to modification by the customer.

The multitude of modifications and accessories offered by the ST series semi-trailers guarantees their multifunctionality and efficiency in oversize transport. ST series semi-trailers are offered in 2-axle to 10-axle versions, in widths of 2.55 m, 2.75 m or 3.0 m

Seria
Liczba osi

ST 2-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 3-series Light

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 3-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 4-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 5-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 6-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 7-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 8-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 8 (2+6)-series

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

ST 10 (2+8)-oseries

This is the series with the widest range of options and modifications, as evidenced by the multitude of choices in terms of the number of axles. In total, we produce as many as 10 variants, from 2 to 10 axles, including a 3-axle light version and two 8-axle semi-trailer variants.

Cargo securing lugs LC=min. 5,000 daN, 7 pairs on lower part of load deck
Swan neck with integrated cargo securing points
Stake eyes 10 pairs
1 fixed axle, 1 trailing axle

Main Dimensions
TLTotal length12,695 mm
ELExtension length1x6,300 mm
TETotal length extended19,265 mm
WWidth2,550 mm
KHKingpin height1,240 mm
LHLoading area height900 mm
FLFixed part behind goose neck1,000 mm
LLlower loading area length8,865 mm
ULUpper loading area length4,100 mm
FOFront overhang1,400 mm
RORear overhang1,955 mm
RTSwing clearance radius for truck2,300 mm
RAClearance radius for trailer1,651 mm
ADAxle distance1,360 mm
KADistance from kingpin to the 1st axle8,210 mm
Max. fifth wheel load18,000 kg
Axle load capacity20,000 kg
Gross vehicle weight38,000 kg
Dead weight9,800 kg
Payload28,200 kg

Cargo securing lugs LC=min. 5,000 daN, 8 pairs on lower part of load deck
Swan neck with two pairs of cargo securing points, LC=min. 5,000 daN
Cargo securing lugs LC=min. 5,000 daN in excavator arm recess, 2 pairs
Extremely lightweight construction: 7,950 kg incl. aluminium underrun and wheel recesses
Machine wheel recesses in loading deck, 2 pairs
Excavator arm recess in the rear of the load deck
2 fixed axles, 1 trailing axle
1 lifting axle

Main Dimensions
TLTotal length13,060 mm
WWidth2,540 mm
KHKingpin height1,180 mm
LHLoading area height890 mm
LLLlower loading area length9,405 mm
ULUpper loading area length3,655 mm
FOFront overhang1,180 mm
RORear overhang1,520 mm
RTSwing clearance radius for truck2,105 mm
RAClearance radius for trailer1,495 mm
AD1/AD2Axle distance1,810/1,310 mm
KADistance from kingpin to the 1st axle7,240 mm
Max. fifth wheel load18,000 kg
Axle load capacity30,000 kg
Gross vehicle weight48,000 kg
Dead weight7.950 kg
Payload40,050 kg

Cargo securing lugs LC=min. 5,000 daN, 8 pairs on lower part of load deck
Swan neck with integrated load securing points,
Stake eyes 10 pairs
2 fixed axles, 1 trailing axle

Parametry techniczne
TLTotal length12,695 mm
ELExtension length1x6,300 mm
TETotal length extended19,265 mm
WTotal length extended2,550 mm
KHTotal length extended1,240 mm
LHTotal length extended900 mm
FLTotal length extended1,000 mm
LLLower loading area length8,865 mm
ULUpper loading area length4,100 mm
FOFront overhang1,400 mm
RORear overhang1,955 mm
RTSwing clearance radius for truck2,300 mm
RAClearance radius for trailer1,651 mm
ADAxle distance1,360 mm
KADistance from kingpin to the 1st axle6,850 mm
Max. fifth wheel load18,000 kg
Axle load capacity30,000 kg
Gross vehicle weight48,000 kg
Dead weight10,500 kg
Payload37,500 kg

Cargo securing lugs LC= min. 5,000 daN, 9 pairs on lower part of load deck
Swan neck with integrated load securing points
Stake eyes 10 pairs
2 fixed axles, 2 trailing axles
1 lifting axle

Main Dimensions
TLTotal length12,695 mm
ELExtension length1x6,300 mm
TETotal length extended19,265 mm
WWidth2,550 mm
KHKingpin height1,240 mm
LHLoading area height900 mm
FLFixed part behind goose neck1,000 mm
LLLower loading area length8,865 mm
ULUpper loading area length4,100 mm
FOFront overhang1,400 mm
RORear overhang1,480 mm
RTSwing clearance radius for truck2,300 mm
RAClearance radius for trailer1,651 mm
ADAxle distance1,360 mm
KADistance from kingpin to the 1st axle5,950 mm
Max. fifth wheel load25,000 kg
Axle load capacity40,000 kg
Gross vehicle weight65,000 kg
Dead weight11,200 kg
Payload53,800 kg

Heavy duty lashing rings in lower loading area, 8 pairs, LC=min. 5000 daN
Heavy duty lashing rings on goose neck, 2 pairs, LC=min.
5000 daN
Stake pockets, 7 pairs
Stake pockets rows crosswise to the axis of trailer, 3 rows
3fixed axles, 2 self-steering axles
1 axle lif

Main Dimensions
TLTotal length12,695 mm
ELExtension length 1x6,300 mm
TETotal length extended 19,265 mm
WWidth 2,550 mm
KHKingpin height 1,240 mm
LHLoading area height900 mm
FLFixed part behind goose neck 1,000 mm
LLLower loading area length8,865 mm
ULUpper loading area length 4,100 mm
FOFront overhang 1,400 mm
RORear overhang 1,050 mm
RTSwing clearance radius for truck 2,300 mm
RAClearance radius for trailer 1,651 mm
ADAxle distance1,360 mm
KADistance from kingpin to the 1st axle5,030 mm
Max.fifth wheel load25,000 kg
Axle load capacity50,000 kg
Gross vehicle weight75,000 kg
Dead weight 13,200 kg
Payload 61,800 kg

Heavy duty lashing rings in lower loading area, 8 pairs,
LC=min. 5000 daN
Heavy duty lashing rings on goose neck, 2 pairs, LC=min.
5000 daN
Stake pockets, 8 pairs
Stake pockets rows crosswise to the axis of trailer, 3 rows
3fixed axles, 3 self-steering axles
1 axle lif

Main Dimensions
TLTotal length13,450 mm
ELExtension length 1x6,300 mm
TETotal length extended19,750 mm
WWidth 2,550 mm
KHKingpin height 1,240 mm
LHLoading area height900 mm
FLFixed part behind goose neck550 mm
LLLower loading area length9,350 mm
ULUpper loading area length 4,100 mm
FOFront overhang 1,400 mm
RORear overhang 1,050 mm
RTSwing clearance radius for truck 2,300 mm
RAClearance radius for trailer 1,651 mm
ADAxle distance1,360 mm
KADistance from kingpin to the 1st axle4,160 mm
Max.fifth wheel load25,000 kg
Axle load capacity60,000 kg
Gross vehicle weight85,000 kg
Dead weight13,800 kg
Payload71,200 kg

Heavy duty lashing rings in lower loading area, 9 pairs,
LC=min. 5000 daN
Heavy duty lashing rings on goose neck, 2 pairs, LC=min. 5000 daN
Stake pockets, 8 pairs
Stake pockets rows crosswise to the axis of trailer, 3 rows
3fixed axles, 4 self-steering axles
1 axle lif

Main Dimensions
TLTotal length 14,980 mm
ELExtension length 1x6,300 mm
TETotal length extended 21,280 mm
WWidth2,550 mm
KHKingpin height1,240 mm
LHLoading area height900 mm
FLFixed part behind goose neck 515 mm
LLLower loading area length10,880 mm
ULUpper loading area length 4,100 mm
FOFront overhang 1,200 mm
RORear overhang 1,050 mm
RTSwing clearance radius for truck 2,500 mm
RAClearance radius for trailer 1,500 mm
ADAxle distance1,360 mm
KADistance from kingpin to the 1st axle4,530 mm
Max.fifth wheel load25,000 kg
Axle load capacity70,000 kg
Gross vehicle weight95,000 kg
Dead weight 16,500 kg
Payload 78,500 kg

Heavy duty lashing rings in lower loading area, 10 pairs,
LC=min. 5000 daN
Heavy duty lashing rings on goose neck, 2 pairs, LC=min. 5000 daN
Stake pockets, 10 pairs
Stake pockets rows crosswise to the axis of trailer, 3 rows
3fixed axles, 5 self-steering axles
1 axle lif

Main Dimensions
TLTotal length15,900 mm
ELExtension length 1x6,300 mm
TETotal length extended22,200 mm
WWidth 2,550 mm
KHKingpin height 1,240 mm
LHLoading area height900 mm
FLFixed part behind goose neck 535 mm
LLLower loading area length11,800 mm
ULUpper loading area length 4,100 mm
FOFront overhang 1,200 mm
RORear overhang 1,050 mm
RTSwing clearance radius for truck2,500 mm
RAClearance radius for trailer 1,500 mm
ADAxle distance 1,310 mm
KADistance from kingpin to the 1st axle4,440 mm
Max.fifth wheel load25,000 kg
Axle load capacity80,000 kg
Gross vehicle weight105,000 kg
Dead weight 19,000 kg
Payload 86.000 kg

Heavy duty lashing rings in lower loading area, 10 pairs,
LC=min. 5000 daN
Heavy duty lashing rings on goose neck, 2 pairs, LC=min. 5000 daN
Stake pockets, 8 pairs
Stake pockets rows crosswise to the axis of trailer, 4 rows
First two axles separated from other axles
3fixed axles, 5 self-steering axles
2 axle lifts

Main Dimensions
TLDługość całkowita15,955 mm
ELDługość rozciągu1x6,300 mm
TEDługość całkowita po rozciągu22,255 mm
WSzerokość2,550 mm
KHWysokość sprzęgu1,240 mm
LHWysokość pokładu ładunkowego900 mm
FLDługość części stałej za szyją3,280 mm
LLDługość dolnego pokładu ładunkowego11,855 mm
ULDługość górnego pokładu ładunkowego4,100 mm
FOZwis przedni1,200 mm
ROZwis tylni1,050 mm
RTPromień skrętu ciągnika2,500 mm
RAPromień skrętu naczepy1,500 mm
ADRozstaw osi1,310 mm
AD1Odległość pomiędzy 2 a 3 osią1,845 mm
KAOdległość od sworznia królewskiego do 1-ej osi3,960 mm
Maksymalny nacisk na siodło25,000 kg
Nacisk na osie80,000 kg
Masa całkowita pojazdu105,000 kg
Masa własna22,000 kg
Dopuszczalna ładowność83,000 kg

Heavy duty lashing rings in lower loading area, 12 pairs,
LC=min. 5000 daN
Heavy duty lashing rings on goose neck, 2 pairs, LC=min. 5000 daN
Stake pockets, 9 pairs
Stake pockets rows crosswise to the axis of trailer, 4 rows
First two axles separated from other axles
3fixed axles, 7 self-steering axles
4 axle lifts

Main Dimensions
TLDługość całkowita18,575 mm
ELDługość rozciągu1x8,300 mm
TEDługość całkowita po rozciągu26,875 mm
WSzerokość2,550 mm
KHWysokość sprzęgu1,240 mm
LHWysokość pokładu ładunkowego900 mm
FLDługość części stałej za szyją3,280 mm
LLDługość dolnego pokładu ładunkowego14,470 mm
ULDługość górnego pokładu ładunkowego4,100 mm
FOZwis przedni1,200 mm
ROZwis tylni1,050 mm
RTPromień skrętu ciągnika2,500 mm
RAPromień skrętu naczepy1,500 mm
ADRozstaw osi1,310 mm
AD1Odległość pomiędzy 2 a 3 osią1,845 mm
KAOdległość od sworznia królewskiego do 1-ej osi3,960 mm
Maksymalny nacisk na siodło25,000 kg
Nacisk na osie100,000 kg
Masa całkowita pojazdu125,000 kg
Masa własna25,000 kg
Dopuszczalna ładowność100,000 kg

Download

Catalog Demarko Pobierz (pdf, 11.02 MB)
Catalog ST Series Pobierz (pdf, 3.22 MB)
Catalog Hydra Deck Pobierz (pdf, 2.47 MB)

Created for great things

The multitude of modifications and accessories offered by ST-series semi-trailers ensure their multi-functionality and efficiency in oversize transport. The modular design enables multiple length and width extensions. When the semi-trailer is extended, its functionality is ensured by for example an intermediate table that, depending on the dimensions, may be equipped with stanchion sockets, telescopic width extensions and even cavities for the wheels of construction machines.

 

Various variants of axle assembly support a series of configurations, enabling even hydraulic-assisted turns controlled by a wireless remote. The maximum technical load reaches 16 tonnes and the deck in traffic position may optionally be at the height of 800 mm. The height of the load deck may be additionally adjusted using special cavities for the wheels or buckets of the transported machines. Those cavities may be also filled with other transported loads.

Infinite Possibilities

With all the modifications available, ST-series semi-trailers may exceptionally fulfil certain functions of platform or low-deck semi-trailers. Those possibilities are provided by for example the installation of a load trestle, which aligns the level of the load deck with the balcony, thus enabling the transport of long loads, such as pipes.

 

On another hand, with cavities for wheels it is possible to lower slightly the maximum load height and transport higher machines under bridges or high-voltage overhead lines. For the transport of less extreme loads, this is the optimum solution. DEMARKO low-loading semi-trailers are not only the answer for the needs of transport companies in general, but also facilitate the work of drivers and logistics specialists so that the whole industry could use the amenities we offer.

 

The 3-axle light semi-trailer is an exceptional product in this series. Its basic feature is its low unladen weight of approx. 7,950 kilograms, which contributes to for example reduced fuel consumption in relation to heavier trailers and increased capacity of up to 40 tonnes. It is also the only low-loading semi-trailer that features cavities for construction machines and a cavity for an excavator bucket already in the standard version.

Accessories

The outstanding functionality of ST Series trailers is ensured by numerous accessories, including invasions for easy loading of tracked and wheeled vehicles, numerous holders, stanchion grooves and boxes and storage compartments.

 

The ST series semi-trailers are also suitable for transporting two machines of different sizes. In this case, the smaller machine can be transported on a swan neck, where additional invasions are fitted. This is an excellent solution for companies that need trailers for a variety of applications and more general use.

Hydra-Deck Technology™

ST trailers are full with innovative new features such as Hydra-Deck Technology™. The modular design of the load decks ensures that they can be changed quickly and efficiently as required. This leads to enormous flexibility during all transport tasks.

Certificates: ISO 9001:2015, 3834-2, AQAP 2110:2016

Concession: B-071/2018, NCAGE 99NMH WSK 1334/W/2021a

Cooperations: Politechnika Śląska, ESTA, Ogólnopolskie Stowarzyszenie Pracodawców Transportu Nienormatywnego

  • Oświetlenie

    24-volt electrical installation and trailer markings meeting even the most stringent regulations. All assembled with the highest grade of moisture protection.

  • Raiding the trailer

    As standard, a 3 to 5 m long strip for the use of underruns in various widths, extendable and movable by means of hydraulic cylinders supplied from the tractor or a mini hydraulic unit mounted under the semi-trailer. Aluminium underruns with a length of 2.4 to 3 m and a maximum load capacity of 32 t can be supplied.

  • Cargo securing

    The large number of load securing points (depending on the customer's needs) means that properly securing the goods being transported is no longer a problem.

  • Construction

    All made of high-strength steel.

  • Hydraulically extended deck

    Trailer extension of up to 3.2 m possible.

  • Swan neck

    Front of semi-trailer as toolbox including spare wheel holder. Practical use of space is made possible by integrated load securing points and aluminium sides.

  • Wireless control

    Thanks to the wireless remote controls, operating the semi-trailer is easier than ever. The hydraulically extended load deck, overruns and the trailer's steering system can be controlled wirelessly.

  • Corrosion protection

    Comprehensive paint protection as standard by: shot-blasting and zinc metallization of the entire structure, application of a primer of min. 20 μm and two-component paint with a thickness of min. 60 μm.