Steel dump semitrailers
Semitrailers with aluminum bodies, which have already become widespread in the agro-industrial complex, will soon be able to take the position of steel tipper semitrialers in the sphere of construction transportation, primarily in working with sand and small fractions of crushed stone. By functionality, modern aluminum bodies are not inferior to steel bodies. The priorities of the state policy in the transport sector for the coming years are announced - the preservation of the road network, the extension of the guaranteed lifetime of the asphalt pavement, and the control over compliance with weight restrictions. Carriers come to the understanding that a large tare weight of a vehicle means a missed payload, and therefore a profit lost in the scale of business. A new approach to transportation requires more efficient solutions from machine builders.
Grunwald tipper semitrailer with 27 cubic meter aluminum body has an advantageous combination of high performance and wide application potential. Low tare weight allows the transportation of a sufficient volume of inert building materials without violating the existing weight restrictions, while the body volume is enought for effective transportaion of various agricultural goods.
| Vehicle category
| Permissible gross weight
|| 38 000 kg
| Axle load
|| 27 000 kg
| Fifth wheel load
|| 11 000 kg
| Fifth wheel height
|| 1 220 kg
| Lifting capacity
|| 32 270 kg
| Own weight
|| 5 730 kg
| Overall length
||8 962 mm|
| Overall width
||2 540 mm|
| Overall height
||3 052 mm|
| Height at the front wall
||1 450 mm|
| Internal width
||2 470 mm|
|Maximum angle of the body lift||46º|
A high-quality body with a geometric volume of 27 cubic meters is made from a hollow aluminum profile that is not subject to negative environmental effects.
The front wall of the body is inclined at an angle of 20 degrees. Two longitudinal stiffeners inside the body, located along the walls, also have a slope of 45 degrees. These measures are designed to reduce the likelihood of load sticking during loading and increase safety of operation. On top of the body is equipped with two removable crossbars, tightening the sides.
ORIGINAL CONSTRUCTION OF THE FRAME
The frame of the semitrailer is welded, it is executed with an appropriate margin of safety for operation in difficult road conditions. When manufacturing the frame, high-strength steel S700 is used. In the front part of the frame, a working platform is installed for servicing the hydraulic cylinder, working with a spare wheel and a tilting canopy.
The semitrailer is equipped with a Binotto hydraulic cylinder with a working pressure of 190 bar. A special valve is provided to regulate the height of the opening of the hydraulic cylinder, and thus the determining angle of lifting the body. It is important to work on the elevators and unloading points with a height restriction.
Three axles of BPW ALO or SAF Custom Design are installed on the semitrailer as standard, in the Heavy Duty version with a lifting capacity of 9 tons each with the air suspension and the WABCO pneumatic system. The axles are fully adapted for difficult road conditions and have an increased resource compared to the standard axis. Brake mechanisms of drum or disk type.
PAINTING FOR HARMING CONDITIONS
The quality of the Grunwald semitrailer painting meets the requirements of the ISO standard for severe climatic conditions. The guarantee of long-term product protection against corrosion is thorough preparation of the surfaces before painting. Therefore, all steel parts are subjected to shot blasting.
Painting is made by modern technologies with paint and varnish materials on epoxy and polyurethane basis. All materials used are produced in the EU and of exceptionally high quality, which allows the successful operation of the semitrailer in harsh climatic conditions. When painting by the quality control service, step-by-step control is carried out at all technological stages of the process.
All hinged components - axles, pneumatic system, electrician and support devices are purchased directly from leading manufacturers. This approach ensures reliability in operation and simplifies the maintenance of equipment due to a greater number of service stations and the availability of spare parts.
On request, various options are offered, starting with the lifting axle mechanism and pumping the extinguishing window in the back board and automatically lowering the air suspension. The proposed options are designed to further expand the application of the semitrailer and reduce the temporary loss during operation.
The warranty period for the Grunwald semitrailer is 12 months from the date of sale.
Warranty on the axle unit as standard - 3 years without mileage limitation.