SPMT trailer have the highest loading capacities in the world. TITAN produces hydraulic modular trailer are mainly used in transporting large and heavy loads, bridge, tunnel engineering ,power engineering, petrochemical engineering and railway construction. TITAN Hydraulic platform trailer for transport oversize and over weight freights that split apart series hydraulic full trailer that can be assembled into weight from 45 tons to tons of various series.
The heavy haulers can be coupled together to increase their capacity. Hence, they can transport wide and long construction equipment. Another reason why SPMTs are widely used in construction plants is that they enable builders to increase their efficiency and reduce overall costs.
150-250 tons hydraulic multi axle trailer
- Extremely robust and durable construction, extremely high load capacity.
- Platform height is adjustable
- All wheels can be steerable
- Small turning radius, 48° steering angle with hydraulic gooseneck
- Longitudinal and lateral combination of each module are available
- All wheels steerable automatically or manually.
- Hydraulic axle suspension system adopt uneven road condition.
- Lifting cylinder make multi axle low bed trailer automatically responds tough road conditions.
- Dual-circuit hydraulic system guarantee safe work condition
Drawing of self propelled modular transporter for sale
The hydraulic modular trailer stability is important when transporting heavy cargo for various reasons. Stability reduces the risks of accidents, which leads to injuries to people.
Accidents also damage the environment and the equipment or cargo in transit. Accidents create additional costs because projects are delayed. The equipment must be replaced or repaired before it can be used for construction.
Most of the accidents are caused by human error and not mechanical failure. When handlers are not properly trained, they do not load the cargo properly on the hydraulic multi axle trailer.
Each modular transporter has a maximum loading capacity. The manufacturer specifies this loading capacity. Loading hydraulic multi axle trailer with an equipment or cargo that exceeds this capacity will cause it to topple off the platform.
Another reason is loading equipment that is too tall for the platform. Tall equipment requires a wide surface to stay balanced on the road. Hence, the best way to transport such cargo is couple several SPMTs to accommodate the weight of the equipment.
Multi truck head traction and pushing transport
Heavy-cargo transport:
Some companies specialize in transporting heavy cargo from one destination to another. Such companies serve clients who need to transport heavy loads a few times in a year.
The manufacturers also require transport solutions to transport the fully-assembled equipment to the clients or warehouse. The goldhofer multi axle trailer can be customized to transport any cargo as long as it is well packaged.
Construction Industry
The construction of bridges, large buildings and roads also require the use of modular trailers. Big bridge segments and large girders are placed onto the modular trailers from the construction sites.
Construction companies usually have projects located in different areas. Modular hydraulic trailer help in the transportation of the already built sections to places where they will be installed and at the same time shift materials and equipment from one project to another.
self propelled modular transporter for sale
Ship Building Industry
Ships and ship sections are normally huge and bulky. You can imagine how the construction of the big ships you see transporting goods and people across seas is done.
Modular trailers become very useful in the movement of ship sections to assembly halls and the entire ship to the sea. Ships are normally very heavy weighing up to thousands of tones.
The biggest ships will need goldhofer spmt with over 200 axle lines. On some occasions, the placement of the axles is done side by side to help in carrying long and wide ship sections.
Chemical industry construction:
The chemical industry also requires special transportation goldhofer modular trailer to move heavy raw materials, equipment, and finished products.
Setting up the manufacturing sites requires the companies to transport heavy and long tubes, cylindrical tanks, and metallic beams among other parts. In most cases, the parts are purchases from other assembly companies and transported to the chemical production sites.
heavy equipment transport trailer
Mechanical steering axles
When gooseneck steering, the system will control the rods and support arm to steer the tires. This is the type to go for on economic grounds and again to enjoy a long service life.
It comes with low maintenance costs and most importantly, it is highly available.
Hydraulic steering axles
Self propelled modular transporter for sale offers a larger steering angle of up to 65°. Most importantly, it has a higher capacity compared to other options out there.
Steering Operations
The multi axles trailer has many axles even up to 10 axles. So, the multi axles Modular Trailer&#;s axles need to be steered by either self-steering or automatic steering. Steering without wheels causes serious wearing.
In order to minimize the tear and wear on the tires and the modular hydraulic trailer chassis stress, it is advisable to let the Modular Trailer wheels to accurately follow the towing vehicle wheels regardless of whether it is on a tractor or a lorry.
For this to be achieved, it is normally important that successive wheel pairs take up slightly varying angles and positions under the goldhofer multi axle trailer chassis.
Conventional steering systems for trailers make use of the bogie system for steering through means where both the wheels of a pair get turned concurrently through the changing axle angle where the axle links up the wheels together.
The goldhofer multi axle trailer can get signal when gooseneck or drawbar steering, the axles will be controlled by PPU automatically, you can also use the remote control to steer all axles.
Hydraulic used SPMT for sale
1. The tractor has sufficient power
The maximum driving force of the tractor wheels determined by the engine torque and transmission ratio should be greater than the driving resistance of the vehicle group;
2. The drive wheels of the tractor have sufficient adhesion.
You will get efficient and thoughtful service from Haiheyuan.
The main determinant of adhesion is the axle load quality of the tractor, which is applied in the form of counterweight in engineering. In order to meet the basic conditions for the driving of a used SPMT for sale, the tractor should have enough weight so that the driving wheels of the tractor do not slip on the road when driving.
The selection of the tractor is considered from these two aspects. First, the maximum driving force of the wheel determined by the engine of the tractor is calculated, and then the driving resistance of the vehicle group is calculated, and compared with the maximum driving force of the wheel, if the driving resistance is greater than the maximum driving force of the wheel, The tractor's capacity is insufficient, you must replace the tractor or increase the number of tractors; if the driving resistance is less than the maximum driving force of the wheel, then check whether the driving wheel has sufficient adhesion according to the given road conditions. If the adhesion is not enough, the calculation must be Increase the counterweight, and finally check whether the tonnage of the counterweight is within the carrying capacity of the tractor. If the tonnage of the counterweight exceeds the carrying capacity of the tractor, you must still replace the tractor or increase the number of tractors. If the tonnage of the counterweight is in towing Within the carrying capacity of the used spmt for sale, a selection report is made.
goldhofer modular trailer for sale
3. Trailer model and trailer structure
The structure of the modular hydraulic trailer is very complicated, and its longitudinal direction is very long. The main longitudinal beam is designed on the trailer to bear the load of the cargo and the supporting force of the tire, forming a beam member in material mechanics. If the cargo is too heavy-weight, the huge bending stress may easily cause the main beam of the goldhofer modular trailer to deform too much or exceed the stress limit, and the main beam of the multi axle low bed trailer may yield or even break; and the bending moment of each splicing part of the trailer body exceeds the allowable At the moment of bending, the joint of the trailer longitudinal beam will become a hidden danger.
Therefore, in the pre-selection of the Multi Axles Modular Trailer model and the pre-loading of the cargo, in order to ensure the safety of the trailer and the cargo, it is very important to check the force deformation and bending moment of the modular hydraulic trailer. Only the multi axle low bed trailer that have passed all the checks can ensure safe use.
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Tiiger four-axle HMT module at Transporter Industry International headquarters in Haryana, India
A hydraulic modular trailer (HMT) is a special platform trailer unit which feature swing axles, hydraulic suspension, independently steerable axles, two or more axle rows, compatible to join two or more units longitudinally and laterally and uses power pack unit (PPU) to steer and adjust height.[1] These trailer units are used to transport oversized load, which are difficult to disassemble and are overweight. These trailers are manufactured using high tensile steel, which makes it possible to bear the weight of the load with the help of one or more ballast tractors which push and pull these units via drawbar or gooseneck this combination of tractor and trailer is also termed as heavy hauler.
Typical loads include oil rig modules, bridge sections, buildings, ship sections, and industrial machinery such as generators and turbines also many militaries uses HMT for tank transportation. There is a limited number of manufacturers who produce these heavy-duty trailers because the market share of oversized loads is very thin when we talk about the over all transportation industry. There are self powered units of hydraulic modular trailer which are called SPMT which are used when the ballast tractors can not be applied due to space.
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Goldhofer THPS HMT in two-lane configuration inIn the first every hydraulic modular trailers were made by Willy Scheuerle a Germany based trailer specialist which were four axles 32 wheeled modules for Robert Wynn and Sons Ltd, a Shaftesbury-based Guinness Book of Record-winning heavy haulage company.[2] Wynns were also the first to use pneumatic tires for loads weighing more than 100 tons and also to use hydraulic suspension trailers which were manufactured by Cranes Trailers limited from Dereham.[3]
In Cranes Trailers limited developed two four-axle 32-wheel modules for Pickfords a London based heavy haulage company with combined payload capacity of 160 tons on a total of eight axles and 64 wheels the modules incorporated hydraulic suspensions and each axle interlinked with mechanical steering system at an operational height varied from 2.9 to 3.11ft. The modules had drawbar coupling which could be coupled at any of both ends or even both for push-pull combination.[4]
In Goldhofer developed modular trailers in Europe for heavy haulers.[5] In the same year, Cometto developed a 300-ton capacity module in 14-axle, seven-row configuration.[6] Scheuerle also demonstrated its modules at events in [7] and later King Truck Equipment Ltd signed an agreement with Scheuerle which gave them exclusive manufacturing rights to produce their trailers in the UK.[8]
In , King Truck Equipment Ltd demonstrated two units that were custom-built for Pickfords. A single unit was able to carry 150 tons on six axle rows and 48 wheels in total. Who would use them mostly with their Scammell ballast tractors via a drawbar coupling. These trailers had independent suspension and steering abilities via the Petter twin-cylinder diesel engine used as a PPU.[9]
A locomotive being hauled to Woodham Brothers yard on an eight-axle HMT coupled via drawbar to a Scammell contractor ballast tractor on A27 highway, England inIn the s, many manufacturers started to developed HMTs as the industry believed that the conventional low loaders had various limitations. To comply with new regulations and keeping safety in mind, the industry knew that they needed more axles to distribute the payload and the ultimate solution for the demand would be HMTs. Manufacturers opted hydraulic suspension instead of mechanical leaf springs and air suspension due to its efficient size and adjustable characteristics. Manufacturers chose high-tensile steel instead of aluminum because when it comes to HMTs and oversize loads, the minimizing the weight of the HMT is not relevant when they have their own payload capacity excluding the ballast tractor. The only weak point that existed on a HMT were the tires,[10] which are still a significant weakness till today, that's the reason why SPMTs have solid tires. HMTs operate at a higher speed then SPMts that's why solid tires are not an option for HMTs.
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Steering and suspension controller unit mounted on a Scheuerle HMTThe number of axles on a HMT is not specified; two-, three-, four-, five-, six-, and eight-axle units are manufactured. Multiple units can be coupled longitudinally and laterally to transport a heavier load; each axle has a lifting capacity ranging from 18 tons to 45 tons. With a steering capacity of 50 to 60 degrees. Some combinations require a trailer operator who controls steering and height adjustments of the trailer via a controller which is modular and can be mounted at the frontend or rear end of the trailer. Huge combinations may also have a cabin for the operator, while typical combinations have a seat attached to the controller.[citation needed]
Hydraulic cylinders are used for steering and suspension of the trailer each axle has an individual suspension cylinder, steering rod which is connected to the main steering cylinder which is at the frontend of the trailer which makes all the axles steer at once in the same direction one row of axle consist of two turn tables, two knees, two suspension cylinders and four to eight wheels attached to a high strength metal platform. Steering and suspension cylinders are hydraulically operated using hydraulic fluid through hose pipe from the hydraulic tank, which is located near the PPU. PPU, which powers the steering, suspension to and fro flow of hydraulic fluid from hydraulic tank to suspensions and steering cylinders, puts out about 18 to 25 hp of power and are available in both diesel and petrol variants manufactured by renowned brands like Kohler, Yanmar and Hatz.[citation needed]
Multiple units of HMT can be interconnected longitudinally by pins and interconnecting couplings mounted in the centre of the chassis in the front and rear to interconnect them laterally they are bolted on the side wall of the chassis. HMTs can not move themselves, so There are two ways by which a HMT can be coupled with a tractor unit which can push and pull the trailer, these are gooseneck and drawbar.
Under view of a Tii HMT with visible axle configuration and interconnecting coupling after an accident in Sögel, Germany[citation needed]
Gooseneck is the most common coupling used in the industry as the name suggest a swan shaped coupling is coupled to the trailer and the tractor via connection of trailer pin and tractor fifth wheel. This coupling can be hydraulically adjusted to suit the tractor's height also the steering controls are connected to the coupling. Goosenecks are easy to use and gives benefit to using conventional tractors,[11] but this coupling has two huge drawbacks this coupling can not be applied in a two file or side by side HMT configuration which limits the payload, and also it can not be applied in push and pull configuration. Goosenecks are manufactured by the trailers manufactures themselves. Drawbar is the most efficient and economical coupling which consists of an A-shaped frame with an I-shaped loop which is coupled to the trailer and connected to a ballast tractor via a towing hitch of the tractor. This coupling is widely used in developing countries because of its economical cost. Unlike gooseneck, this coupling can be applied to side by side and push & pull configuration[12] which, but this coupling can not be connected to a typical tractor, it requires a ballast tractor which has a ballast box instead of a fifth wheel and tow hitches in the rear and front.[13] Draw bars and tow hitches are manufacture red by companies like jost and Ringfeder.[citation needed]
Since in the United States of America, HMT have extra features and design changes which include widening axles, and half way folding system. Due to different road regulations in different states, almost all manufacturers have adopted the US design and developed a product for the US market. These HMT trailers are named dual lane trailers, which comes from the widening characteristic of the trailer. Dual lane trailers have capability to change its width from 13 feet (4.0 m) to 20 feet (6.1 m) wide to make transport of empty trailers easy and also comply with state regulations when required.[14]
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Allelys HMT with girder bridge configuration, hauling heavy load with two MAN ballast tractors[
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Goldhofer THP-SL hydraulic modular trailer with oversize load being pulled by Mercedes-Benz Actros ballast tractor via drawbar[
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United States Army five-axle M HMT module by Leonardo DRS coupled with Oshkosh M tractor at Las Vegas[
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Windmill tower section being transported using tower adapter configuration
DOLL self steering blade transporter dolly
Goldhofer FTV blade lifter being pulled by a Mercedes-Benz SK tractor
ALE girder bridge with trojan tractors in push and pull configuration
Volvo tractor with drop deck configuration moving oversize load
MAN tractors with vessel deck configuration
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