SZAP trailers: description and technical characteristics of products

Hi all! The opening of a new section requires a more detailed study of the most popular manufacturers of cargo trailers. Therefore, it is quite natural that the SZAP trailer will open our acquaintance.

The company specializes in the production and sale of various trailers. There are no solutions for installation on passenger cars in their range. But this fact should not be surprising.

Today we will find out what kind of manufacturer this is, what it offers its consumers to buy, and what the KAMAZ company has to do with the SZAP brand.

I will say right away that I will not go into details and detailed technical characteristics. I can’t be more precise, since each offered crane, semi-trailer or trailer has a number of distinctive features, characteristics and features. You can always visit the official website and find out in detail about the specific technology that interests you. This is how the consumer finds out what kind of drum is used there, what the hydraulic cylinder or pin is, what kind of hub is installed, what the spring leaf or brake chamber is made of.

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Share119-05-2015 13:12:01

• Author: nik-45
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• Registered: 09/15/2014
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• Age: 59 [1961-03-10]
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MAZ-5207V

Two-axle car trailer with a platform.

DESIGNATIONS Factory - MAZ-5207V (Minsk Automobile Plant model 5207 modification B) Type - 2-PN-6 (2-axle Low-bed Trailer with a lifting capacity of 6 tons)

PURPOSE The MAZ-5207V trailer is designed for transporting goods as part of a road train on all types of roads.

DEVELOPMENT, PRODUCTION The MAZ-5207V trailer-chassis was developed at the Minsk Automobile Plant and was produced since 1955. Serial production of the MAZ-5207V trailer was discontinued in 1974.

TECHNICAL DESCRIPTION The trailer frame is welded and consists of two side members connected to each other by cross members. A towing hook is installed at the rear of the frame. The suspension is spring, consists of four longitudinal semi-elliptical springs, two installed on each axle. The front axle consists of an I-beam, curved in the middle, with steered wheels. The wheels are turned through a system of rods and levers depending on the rotation of the drawbar. The turning device ensures that the trailer wheels rotate from the middle position: internal - at an angle of 19 degrees. 10 minutes, external - at an angle of 16 degrees. 15 min. The rear axle is a tubular beam. Wheels - 12.00-20 The service braking system applies to all wheels of the trailer. The brake system drive is pneumatic, made according to a single-wire circuit. The parking brake system acts on the wheels of the rear axle of the trailer. The brake system drive is mechanical, located on the right side. Wooden platform. The towing device consists of a drawbar, pivotally connected to the carrier, similar to the towing device of the SMZ-810 trailer.

MODIFICATIONS

— MAZ-5207VSh — trailer-chassis with a carrying capacity of 6750 kg without an onboard platform for installing various equipment and bodies. A KUNG-P6 van body has been developed for the trailer.

— MAZ-847 — dump trailer with a carrying capacity of 6000 kg.

TECHNICAL CHARACTERISTICS Load capacity, kg: 6000 Dead weight (equipped weight), kg: 3200 (3400 according to old primary sources) Overall dimensions with drawbar, mm: - length: 6580 (6380 according to old primary sources) - width: 2500 - height: 1520 (1480 according to old primary sources) Overall dimensions without drawbar, mm: - length: 4690 - width: 2500 - height: 1520 (1480 according to old primary sources) Wheelbase, mm: 3000 Track, mm: - front wheels: 1950 - rear wheels: 1950 Ground clearance, mm: 290 Internal dimensions of the platform, mm: - length: 4550 - width: 2350 - height: 480 Loading height, mm: 1040 Tire size: 12.00-20 Maximum towing speed with full load, km/h: - on the highway : 50 — on dirt roads: 25

SOURCES OF INFORMATION - Transport trailers and semi-trailers. - M.: Military Publishing House, 1981.-191 p., ill., UDC 629.114.3 - A short reference book on domestic cars and trailers. Chaban D.V. - M.: Voenizdat, 1971

Share219-05-2015 13:31:30

• Author: nik-45
• Administrator
• Registered: 09/15/2014
• Posts: 2681
• Age: 59 [1961-03-10]
• Time spent on the forum: 25 days 21 hours
• Last seen: Yesterday 10:39:19

MAZ-8926 (type 2-PN-6M) Low-bed two-axle automobile trailer with a loading platform.

designation - MAZ-8926 (Minsk Automobile Plant model 8926) Type - 2-PN-6M (2-axle Low-bed Trailer with a load capacity of 6 tons, Modernized)

PURPOSE The MAZ-8926 trailer is designed for transporting goods as part of a road train on all roads and terrain.

Catalog of flatbed trailers SZAP

Weight, (kg): — transported cargo — loaded trailer — total

The SZAP-8357A trailer can be made in various configurations upon individual order:

• 1. Chassis without flooring

• 2. Chassis with flooring

• 3. On-board equipment

• 4. With double level sides

• 5. With canopy

• 6. With frame, front wall, rear swing gate, awning

Additional equipment for the SZAP-8357A trailer:

Modifications of the SZAP-8357 flatbed trailer are models SZAP-8355 (with a single tire tire), SZAP-835702 (container carrier), SZAP-8357-02 with a load capacity of 12 tons

Specifications

*- the table shows the base length, and upon request it is possible to make a trailer with a length of up to 9940 mm; ** - the table shows the basic width, and upon request it is possible to make a trailer with a width from 2476 mm to 2550 mm; *** — the table shows the basic wheel track size, but depending on the length of the trailer, it is possible to order up to 6020 mm. Trailers SZAP - 8357A, SZAP-8355, SZAP-835702, SZAP-8357-02 are certified by the State Standard of the Russian Federation for compliance with UNECE vehicle safety rules. Warranty and post-warranty maintenance is carried out at service stations of KAMAZ OJSC.

The warranty period for SZAP trailers is 36 months

The SZAP - 8357A trailer and its modifications are used with the KAMAZ-53215 vehicle and with similar domestic and imported tractors that have a towing device (hook-and-loop system) in accordance with GOST 2349-75 or a towing device (pin-loop system ") according to MC ISO 1102-75 for a kingpin diameter of 50 mm, the corresponding permissible gross weight of the towed trailer and the total length of the road train not exceeding 20 m. The main technical characteristics of the vehicle are given below:

KAMAZ-53215 vehicle:

Specifications

Trailer purpose

A trailer can be most fully described as a non-self-propelled vehicle that allows the transportation of various or strictly defined loads due to the power of the tractor, with which it is connected by a special coupling device. Such a combined vehicle is called a road train. It is important to note that the tractor is able to work with several trailers at once.

A special feature of operating a truck together with a trailer is the more complex control of such a vehicle. Therefore, in order to work on a road train, a driver needs to undergo additional training and obtain a permit (the corresponding category in the certificate).

Trailer definition

In accordance with the definition enshrined in the Russian standard for qualification of vehicles, the trailer category includes a vehicle that has the following criteria:

• more than one wheel axle is used in the design;
• the presence of a coupling mechanism capable of vertical movement;
• the towing device used ensures rotation of the front wheel axle;
• movement is carried out by towing vehicles;
• the hitch does not transmit force to the towing vehicle.

To the designation of a trailer using only the central axle, the criterion is added that the wheel axle(s) must be located, with a balanced load, at the center of mass of the towed vehicle. The model of the SZAP trailer is in the photo below in the text of the article.

Another common towed vehicle is a semi-trailer, which is located behind the transporting vehicle and is connected to it by a special coupling mechanism that transmits both vertical and horizontal forces.

To transport semi-trailers and trailers, powerful trucks called tractors are used, and the joint vehicle is called a road train.

Advantages of using a trailer

The main advantages when using a trailer should be considered:

• increase in the amount of transported cargo, sometimes almost 2 times;
• reducing the weight per axle of a road train with an equal load with a conventional truck, which allows driving on roads with weight restrictions;
• the possibility of creating a specialized vehicle, for example, a tractor equipped with a manipulator will be able to load and transport products not only on its own platform, but also on a trailer;
• reduction of material costs for transportation, including fuel, by up to 40%.

The main disadvantage of using a trailer is considered to be a reduction in the speed of a road train compared to a truck by an average of 30%.

Retrofitting a tractor (in the absence of serial standard devices) for working with a trailer should be considered a certain inconvenience. Such material costs are one-time in nature and quickly pay for themselves with the constant operation of the road train.

Removable tinting on the windshield: price, reviews, legality of installation

• SZAP-93282. Universal semi-trailer for different loads and roads;
• SZAP-4308+830622. A road train that transports various loads on roads with a load of up to 10 t;
• SZAP-6385+83053. Road train semi-trailer for agricultural purposes for bulk cargo;
• SZAP-35171+8551-02. Semi-trailer-road train for construction, industrial and agricultural cargo;
• SZAP-9905. Container carrier for 1 container;
• SZAP-99051. Another container ship, but for 1 or 2 containers;
• SZAP-9915. Container ship designed for 2 20ft containers.

Among general transport trailers, model 8357-02 is very popular, acting as a universal open-sided model. Application is limited to roads with a permissible axle load of 10 tf.

SZAP also offers tractor trailers, which are popular in the agricultural industry. These are models 8521 and 8582. In addition to construction cargo, they do an excellent job of delivering and transporting construction materials.

Trailer classification

Trailers for practical use are divided into two large categories: general purpose and specialized. General transport includes flatbed, tilt and others, which allow the transportation of cargo of various types. Specialized ones include panel carriers, vans, cement tankers, pipe carriers, tanks, disbanding trucks, car carriers, etc.

An important characteristic of a trailer is its load capacity. According to the international classification system, cargo trailers are divided into the following categories:

In addition, the division by the number of axes is distinguished.

GKB 8350 device

Among the main units of the GKB 8350 trailer, it is necessary to highlight:

• frame;
• rotating trolley;
• front and rear axles;
• drawbar;
• front and rear suspension;
• brake mechanism;
• wheels.

The metal platform has side boards, consisting of three sections, interconnected by special racks, and a rear board. All sides (except the front) can be opened for ease of loading or unloading. The metal floor of the platform is covered with special wooden panels, which can be dismantled if necessary. To improve the conditions of use, the GKB 8350 trailer can be retrofitted with an awning together with a collapsible frame.

Parameters of GKB 8350

The characteristics of the GKB 8350 trailer are determined by the following technical parameters:

• Load capacity – up to 8.0 tons.
• Platform dimensions: length – 6.10 m;
• height – 0.50 m;
• width – 2.32 m;
• area – 14.20 sq. m;
• loading height –1.32 m;
• volume with awning – 7.11 cubic meters. m.

Trailer modification

Thanks to the technical characteristics of the GKB 8350 trailer, as well as its good design, versatility, reliability, ease of operation and low costs for technical work, its widespread distribution and use has been achieved. Therefore, to develop the next, more lifting model, it was taken as a basis. In addition, the significant unification achieved by both trailers simplified production, technical maintenance and possible repairs.

In terms of technical characteristics, the main difference between the GKB 8352 and 8350 trailers was the increased load capacity from 8.0 to 10 tons. Such an increase, with the design practically preserved, was achieved by increasing the rigidity of both spring suspensions of the new trailer and making the rotating bogie from reinforced metal. As a result of the modernization, the total weight of the GKB 8352 increased to 13.7 tons.

A relative disadvantage of this improvement was the increase in loading height to 1.37 m (+ 5 mm).

Trailer production

One of the largest domestic manufacturers of trailers and semi-trailers is the Stavropol Automobile Trailer Plant (official name -). The plant was established in 1968 and produced its first products in 1971. Initially, these were flatbed semi-trailers and a SZAP trailer, whose technical characteristics were intended for operation with trucks of the ZIL and Kolkhida models. In the mid-seventies, the enterprise was repurposed. After the reorganization, the plant began to develop and produce SZAP trailers for KamAZ trucks.

The company constantly expanded its product range through the development and production of new models for various purposes. Currently, the range of SZAP trailers includes 20 basic models and 80 modifications in a variety of configurations. The company produces the following main types of trailers and semi-trailers:

• onboard;
• dump trucks;
• container ships;
• agricultural purposes.

SZAP trailers have a modern and reliable design. Features include greater unification of units with KamAZ vehicles, which allows maintenance to be carried out at branded stations of the same name.

Maintenance

Like any vehicle, for reliable and long-term operation, the trailer must undergo technical work (MOT) for proper maintenance. The main operations during maintenance are:

• Daily maintenance. Mandatory check of the reliability of the coupling device, the serviceability of the brakes, combined rear lights and the presence of wheel chocks. In addition, a visual inspection of the condition of the platform, wheels, suspension, turning device and the presence of a plate with the trailer number GKB 8350 (right side of the front frame cross member) is carried out.
• First service (TO-1). Routine lubrication operations are carried out in accordance with the trailer lubrication chart GKB 8350, the brake system is fully adjusted with the replacement of worn-out elements (pads, hoses, etc.), and all fastening connections are tightened.

• Second regulation (TO-2). In addition to all the listed TO-1 operations, the alignment of the wheel axles, as well as the frame and drawbar, is diagnosed. If necessary, adjustment operations are performed. The condition of the metal platform is also checked.

The maintenance frequency of the trailer coincides with the base KamAZ 5320 tractor and is: TO-1 - 4 thousand km, TO-2 - 12 thousand km. This design solution reduces the downtime of the road train and increases the operational period.

Purpose of the SZAP-83053 model

A common production model is the three-axle trailer SZAP-83053. This distribution is ensured by the affordable cost of the trailer and a large number of configuration options, the main ones of which are:

• chassis without a floor, for further equipment with settings depending on customer requirements (timber truck, container ship, etc.);
• chassis with metal or wooden floor;
• onboard equipment with a side height of 6.25 cm;
• agricultural option with a side height of 1.70;
• frame with an internal height of 2.5 m for the production of a tented general transport version.

The most suitable tractors for the specified model of the SZAP trailer are KamAZ trucks models 5360 and 53215. It is also acceptable to use other trucks equipped with a towing mechanism in accordance with GOST 2349-75, as well as having the appropriate load capacity.

Features of operating a vehicle with a trailer

When working together with a vehicle and a trailer, it should be taken into account that the road train has an increased total weight, and therefore the braking distance increases. This is important to consider when choosing a safe distance and when stopping, and the effectiveness of the braking system is the most important component of the safe operation of a road train.

Among other features, it is important to highlight the decrease in dynamics. The road train picks up speed noticeably slower, which must be taken into account when overtaking or changing lanes. When driving in turns, it is necessary to avoid jerking when accelerating or braking, as such actions can cause the trailer and the entire road train to skid.

Reversing maneuvers on a vehicle with a trailer are more complex and require certain skills and qualifications. But in any case, if there is an opportunity for control and assistance in performing such actions, it is better to involve an assistant monitoring the situation behind the road train.

Rating GKB 8350

The general purpose trailer GKB 8350 was produced at the Stavropol trailer plant since 1974, and the modification GKB 8352 entered the production line in 1980. Thanks to the successful design, reliability and large number of copies produced, there is currently a significant number of trailers on the secondary market. You can purchase a copy from the mid-80s in good working condition for approximately 150 thousand rubles.

Considering that the design of the GKB 8350 trailer uses a considerable number of parts from the KamAZ vehicle, if necessary, it will not be difficult to repair such a trailer, and the efficiency of using the road train, together with the low costs of maintaining the trailer itself and its versatility, will quickly recoup the purchase costs.

Currently, the Stavropol plant has been transformed into and continues to produce a variety of semi-trailers and trailers with a carrying capacity from 6 to 13 tons. A further development of the GKB 8350 was the SZAP 8355 universal flatbed trailer, which in its parameters and technical characteristics is very similar to its predecessor.