10 main manufacturers of mining dump trucks and their models

Dump truck

- a self-unloading cargo vehicle, trailer or semi-trailer with a body (usually a bunker type), mechanically (usually hydraulically) tilted for unloading cargo or with forced unloading (for example, an auger).

There are also dump trucks, for unloading which the entire vehicle is tilted using telescopic lifts.

Dump trucks are used to transport bulk, bulk, or other cargo suitable for such unloading, which is carried out by tipping them out of the body.

Dump trucks are classified:

• By type of unloading (tilt or forced)
• In the direction of unloading (sideways, backwards)
• By body type (hopper, platform, sliding bunker, sliding platform)

Although the lifting capacity of a dump truck is less than that of a similar fixed-bed truck, dump trucks are still beneficial due to the reduction in unloading time. Dump trucks are distinguished by the method of unloading - rear, side, two-way and universal unloading on all sides. In Russia, dump trucks are produced by KAMAZ, URAL, GAZ, and Yarovit companies.

Dump trucks for underground work[edit | edit code]

Main article: Underground dump truck

Dump trucks for underground work are designed for transporting and unloading blasted or mechanically loosened rocks in cramped conditions in underground mines, during mining and tunnel construction. The design allows them to be used in open-pit mines, but not as effectively.

Underground dump trucks are produced by Atlas Copco, Caterpillar, DUX Machinery, Paus, Sandvik, BELAZ, MoAZ

The most load-bearing models:

Dump trucks for snow removal are specialized equipment designed for transporting snow to snow melting points.

Dump truck bodies

Dump truck cargo bodies are usually made of all-metal – welded from sheet steel – and reinforced with racks. Sometimes they are made of aluminum alloys or reinforced plastics, which allows reducing the weight of the dump truck, increasing the corrosion resistance of the body, reducing noise during loading, improving cleanability during unloading, and by reducing the total weight of the dump truck, reducing rolling resistance and fuel consumption.

Depending on the type and properties of the cargo being transported, dump truck bodies can have different shapes (Fig. 9): rectangular, trough-shaped, semi-elliptical, bucket, scoop. In addition, bodies come with sides that open in the direction of unloading (backward, sideways, on all sides), without opening sides and without rear sides (Fig. 10).

One of the simplest in design is a bucket-type body. The body of the KamAZ dump truck (Fig. 11) is all-metal, welded, without opening sides, of rectangular cross-section. It is designed to expand evenly from front to back, which ensures better unloading when tipping.

Figure 9 – Body shapes of dump trucks

Figure 10 – Schemes for opening the sides of cargo bodies and unloading dump trucks: a, b – rectangular with sides opening to the side; c – trough-shaped without opening sides; g – semi-elliptical with a side opening back; d – bucket without tailgates; e – scoop without rear sides

Figure 11 – Body (platform) of a KamAZ dump truck: 1 – sidewall; 2 – visor; 3, 6 – sides; 4, 7 – amplifiers; 5 – racks; 8 – base

The body consists of a base 8 with longitudinal upper and lower reinforcements 4 and 7, side walls 6 with uprights 5, a front side 3 and a canopy 2 with sidewalls 1. A bracket for fastening the upper support of the hydraulic cylinder of the lifting mechanism is welded in the front part of the body, and in the rear part - tilt axle hinge brackets.

Advantages of a bucket body:

• simplicity of design;
• tightness, strength and rigidity of the structure;
• easier to operate (no need to tear off and close the sides). Disadvantages of a bucket body:
• the need for a large platform elevation angle and, as a consequence, deterioration in the longitudinal stability of the dump truck;
• difficulty in unloading cargo that does not slide well (wet sand, clay, etc.);
• irrational use of volume.

Due to these disadvantages, bodies with opening sides have become more widespread.

Bodies with opening sides may have upper or lower hinges to ensure proper opening of the sides.

The method of opening the side to the side significantly affects the degree of loading of cargo under the wheels of the dump truck (Fig. 12). The least amount of load falling under the wheels is observed when the tailgate is fixed at an angle equal to the angle of lift of the body (Fig. 12 c).

Figure 12 – Influence of the method of opening the side on the degree of loading of cargo under the wheels

Figure 13 – Dump trucks with different unloading methods

Purchase programs at SGM Group

Where to buy high-quality and inexpensive heavy-duty equipment? Contact . Our website presents a wide range of large-sized equipment that is suitable for any type of transport.

Buy dump trucks

in Russia you can use three programs: credit, leasing, or placing an order for the necessary equipment. We will tell you about the advantages of each such offer.

Credit is a loan of money through credit organizations. Leasing is the provision of financial lease for specific units of equipment. Both of these programs exist to make it easier to obtain equipment for use. When receiving equipment on lease from SGM Group, favorable conditions apply:

• Advance payment 0%;
• Rate reduction by 25%;
• Savings due to VAT refund;
• Reduced income tax.

In addition, we present an individual calculation for leasing purchases, since we fully understand that each entrepreneur may have different financial capabilities and different ways of implementing a business.

What to choose: leasing or credit?

The answer to this question in each case may be individual. We advise you to calculate both options and choose the most profitable one in your particular case.

Another advantage is the ability to order the required piece of equipment. Currently, purchasing the right model of large equipment is very problematic, since the car market is quite poor. But our company has reliable foreign suppliers (Volvo, Schmitz, Kipper brands, etc.), so we have the opportunity to place an order for the necessary equipment.

The advantage of purchasing used equipment

There is a very ambiguous attitude towards purchasing used equipment in Russia. On the one hand, this is a good way to save money, but on the other hand, there is a risk of buying a low-quality heavy truck. To exclude the possibility of buying a faulty used dump truck, it is important to purchase equipment only from trusted companies.

SGM-GROUP managers highlight the following advantages of purchasing used dump trucks through our company:

• A wide range of different offers;
• Affordable cost of equipment;
• Opportunity to communicate with the former owner of the dump truck;
• Convenient navigation through the product catalog.

You can contact us by phone or order a call back on the website.

Off-road (quarry) dump trucks[edit | edit code]

Quarry (off-road) dump trucks are used in open-pit mining. Due to their size and weight, operation on public roads is not possible. Large models are delivered to the job site in parts and assembled on site.

The most appropriate for heavy dump trucks is a design with two axles with rear or all-wheel drive and unloading of the body to the rear. In the 1970s, they tried to use three-axle dump trucks, such as the Terex Titan and WABCO 3200B, but such schemes did not take root in quarries. Kress offers bottom dump trucks, but this requires the use of a special unloading system.

Modern super-heavy dump trucks usually use a hybrid powertrain - a diesel engine drives an alternating current generator, which powers traction motors that rotate the wheels (see Electric transmission). The braking system is also a combined action of hydraulics and electric motors, which generate energy during braking mode. General Atomics (Terex), General Electric (Komatsu, BELAZ), Siemens (Hitachi, Liebherr, BELAZ) are working together to create an electric drive.

The Caterpillar 797B stands apart, as it does without unnecessary elements (generator and electric motors). This is facilitated by the world’s largest engine of those installed on trucks - CAT 3524B (two combined CAT 3512B), 24 cylinders, 117 liters in volume, torque exceeds 16,000 Nm (22% reserve). The car has a 7-speed hydromechanical transmission. Hydraulic brakes. However, the company is currently preparing for production of a new generation of dump trucks that will have a diesel-electric drive, developed jointly with Mitsubishi Electric.

The greatest efficiency of such giants is achieved when used in tandem with a hydraulic or cable excavator, which loads in 3-5 cycles. There are already excavators equipped with a bucket that can hold more than 76 cubic meters of rock (more than 100 tons), and on September 26, 2013, the BelAZ-75710 dump truck was presented at the test site of the Belarusian Automobile Plant, which allows transporting 450 tons of payload.[1]

Currently, more than 20 companies are producing mining dump trucks. The main part of the market, more than 95%, is made up of dump trucks with a lifting capacity of up to 40 tons.

In Russia, mining dump trucks are being developed, releasing a 60-ton version in 2018. [ source not specified 292 days

]

The most lifting models from leading manufacturers: