Design and characteristics of the Shantui SD22 bulldozer

Construction equipment on caterpillar tracks has become widespread. It is capable of performing many jobs in land management, including construction, excavation and road work, as well as in quarries. The main advantages of this technique are its high output rate and ability to maneuver.

The SHANTUI SD22 bulldozer has these characteristics. It is the main model produced by Shantui Construction Machinery Co. The Chinese company produces high-quality machines, the characteristics of which are similar to equipment of the same class, but from other manufacturers. The volume of products produced is quite large, which makes the company famous throughout the world.

Bulldozer Shantui SD22

The equipment is constantly modified, obtaining improved qualities and performance. The core technologies are taken from foreign experience, and some parts of the SHANTUI SD22 crawler bulldozer are produced under license from foreign manufacturers, including Caterpillar and Komatsu. Having received such technologies, the company offers high quality machines at an affordable price.

Navigation

• Features and Benefits
• Modifications
• Technical characteristics and dimensions
• Engine
• Device
• Operator's cabin
• Hydraulic system
• Chassis
• Transmission
• Service
• Cost of new and used
• Analogs

Shantui SD 22

The predecessor of this model was the TY220. Now a new machine, Shantui 22, is being produced based on Japanese developments of the Komatsu D85A-21 model.

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Features and Benefits

Technology innovations:

• large dump volume;
• installation of a drive that combines hydraulic and mechanical operating principles;
• electronic panel for improved control over operations;
• improved security systems.

The bulldozer belongs to the 15th traction class. In addition, Shantui SD22 is the latest generation of equipment, the main qualities of which are operator comfort and improved performance. The permissible temperature range is quite large, and includes the climate of both the Black Sea region and Siberia.

Tractor Shantui 22

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Modifications

Depending on the area of ​​application of the equipment, manufacturers advise purchasing models with different working bodies. They have the following nomenclature:

• C – used in the coal industry, a blade with a width of 4200 mm and a height of 1350 mm is provided as a working body;
• D – modification for operation in harsh climatic conditions at elevated air temperatures, additionally air filters and an improved cooling system are installed;
• E – used on weak foundations, has less weight and a larger crawler support area compared to a standard bulldozer, and is characterized by high maneuverability;
• F – used in the forestry industry, has additional protection and a powerful winch;
• R – used at waste disposal stations, has an enlarged dump;
• S – works in swampy areas, the specific pressure on the base is almost halved.

The standard assembly of the Shantui SD22 bulldozer model without modifications involves the installation of a ripper, a blade and a drawing prism.

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DESCRIPTION AND PURPOSE

Shantui SD22 is a middle-class crawler bulldozer designed for operation in various climatic zones (from harsh mining in Siberia to the Black Sea subtropics). The equipment belongs to traction class 15. The machine is produced in China at the Shantui Construction Machinery plant. Individual components of the bulldozer are made under license from well-known brands (Komatsu and Caterpillar). Thanks to this, the quality of the final product remains very high. Shantui SD22 is an upgraded variation of the TY220, which is an analogue of the Komatsu D85A-21.

The model is used to perform a wide range of operations in various conditions. The bulldozer is especially in demand among mining and construction companies. Shantui SD22 is used for leveling work sites, loosening rocks and hardened soil, moving lumpy and loose soils over short distances, cleaning areas from industrial and construction waste, digging and filling pits, quarries and pits, in road work and land reclamation.

The internal range of Shantui SD22 is represented by the following modifications:

• SD22 – classic model with a straight blade and a basic soil ripper;
• SD22C – version with a front blade for working in coal fields. In terms of design and technical parameters, the model does not differ from the basic version;
• SD22D is a variation adapted to work in hot climates, including deserts. In terms of working equipment and capabilities, it is similar to SD22. The main feature is the modernized high-power air conditioner;
• SD22E – version for soils with low bearing capacity and peat bogs. The machine has an increased contact area between the tracks and the surface. The bulldozer uses a standard blade;
• SD22F – modification for forestry. A special protective cage with mesh increases operator protection. The equipment used is a winch and a frontal uprooting blade;
• SD22R – model for waste disposal (domestic and industrial). Equipped with a large blade;
• SD22S – version for use in wetlands. Ground pressure compared to the base SD22 bulldozer is reduced by 43% due to the wide track.

Technical characteristics and dimensions

Machine Dimensions:

It is also worth paying attention to other characteristics of the Shantui SD 22, such as the weight of the equipment, which is 23.5 tons in the standard configuration with a blade capacity of 7.5 m3. The pressure on the base allows the machine to sink into it by 0.54 m, so if the bases are weak or in marshy areas, it is better to choose a modified model. The maximum reach of the working body is 1.2 m.

SHANTUI SD22 fuel consumption is 230 g/kW per hour of operation . The engine power is 162 kW.

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Attachments used

The Shantui SD 22 crawler bulldozer uses the following list of attachments that are installed in the bow and stern:

• straight or rotary blade;
• U-shaped blade;
• single-tooth ripper;
• three-prong ripper.

Blades are mounted in the bow, rippers are mounted in the stern.

As standard, this type of special equipment is equipped with a straight blade with a drawing prism of 6.4 cubic meters. The weight of the equipment is 3.63 tons. If necessary, it can be replaced with a rotating blade with a slightly smaller drawing prism - 4.7 cubic meters, but with the possibility of horizontal skew by up to half a meter. It is used if the bulldozer is used primarily to form a road surface or clear streets of snow.

In special cases, a spherical or hemispherical U-shaped blade with the possibility of skewing is used. Its drawing prism is 7.5 cubic meters.

By separate agreement with the customer, a single-post or three-post ripper with a loosening depth of 666 to 695 mm is mounted on the bulldozer.

Features of the Shantui SD22 bulldozer

Related video: Demonstration of the Shantui SD22 bulldozer

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Engine

A four-stroke six-cylinder engine with a volume of 14 liters is installed. Its manufacturer is the American company Cummins. The engine is equipped with water cooling and turbocharging. The NTA855-C280 has 220 horsepower, direct injection and in-line valves. To reduce the load on the engine, one of the pumps is turned off, as a result of which the pressure in the hydraulic system rises. Thus, the volume of the hydraulic cylinder decreases. Its diameter is 140 mm.

Other characteristics of the Shantui SD 22 tractor include the following engine indicators: rotation speed of 1800 rpm and maximum torque of 1030 Nm. Thanks to the performance of the motor, the bulldozer is able to withstand both high loads and severe temperature conditions.

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Nissan SD engine • en.wikipedia.com

The SD engine was replaced by the Nissan TD engine. It was produced by Minsei Diesel Industries, Ltd., which was renamed Nissan Diesel Motor Co., Ltd in 1960.

Straight 4

SD20

The SD20 is a commonly aspirated straight four diesel engine with bore and stroke of 83.0 and 92.0 mm. It had three main bearings. Diesel versions of the Nissan Cedric in the 1960s until the early 1980s used this engine, which produces at 4,000 rpm. It was first seen in June 1964 when it was fitted to a QGS31 Nissan Cedric.

SD22

The SD22 is a typically aspirated inline four diesel engine. This is a flattened version of the smaller SD20 (83.0 x 100.0mm bore and bump). It produces at 4,000 rpm, as fitted to the 430 series 1983 Nissan Cedric. It was first used in the 330-series Nissan Cedric from June 1977. It was also produced in the MN 22 Chrysler Marine version under license during the 1980s.

The SD22 was used in the Datsun 720 pickup truck from 1980 to 1983, where it produced an SAE of 4,000 rpm. Like its smaller relative the SD20 (but unlike its six-cylinder derivative the SD33) it has three main bearings and was never available with turbocharging. In 1981 the pistons were upgraded to three ring pistons with a steel compression carrier ring cast as part of the piston for improved durability.

The motor is popular in Australia, used mainly as a reliable pump for remote livestock stations. The engine may still be manufactured and imported by JESCO in California. JESCO also supplies parts. A marine version using a water-cooled exhaust manifold and expansion chamber is also still available from other manufacturers.

Statements:

QC142

SD23

The SD23 is a straight four diesel engine with eight valves (two per cylinder), and a distributor type injection pump. This is a bored version of the SD20 with a caliber and impact of 89.0 x 92.0&nnsp;mm. It produces SAE net at 4,300 rpm and has been fitted to Nissan 720 and D21 Pick-ups, as well as E23 Nissan Urvan and Y30-series foreign market Cedrics. The engine was also used in a number of other functions, for forklifts, marine and stationary applications. Unlike smaller engines, the SD23 received five ratio crankshafts. The European spec version required, as fitted to the 1985 Urvan.

SD25

The SD25 is the largest four-cylinder version of the SD range with greater bore and stroke of 89.0 and 100.0 mm. It was fitted to 1983 - 1986 Nissan 720 pickups and Nissan D21 pickups (1987 in Canada only). It has also been fitted to Nissan Urvan and Cabstar. Featured five main bearing crankshafts & redesigned rear main seal.

Straight 6

SD33

The SD33 is a 3.2 L straight six diesel engine, best known for its use in the Nissan Patrol MQ (160 series) from 1980-1983 and the Nissan C80. The SD33 produces at 3,800 rpm.

The engine was also used in the UD 3400 series light truck, heavy-duty trucks, Marine applications, in the International Scout offerings from 1976 to 1979, as well as the Jeep CJ-10/Cj-10A flightline tractors from 1985 to 1986. The Scout-based Monteverdi Sahara was also offered with SD33.

SD33T

The SD33 is a 3.2 L turbocharged straight six diesel engine that was used in 1980 for the power plant in the 6,400 International II's Scout Combine. All were equipped with the T-19 manual transmission.

From July 1983 to 1987, SD33T engines were fitted to the Nissan Patrol MK (160 series - model 2). The SD33T produces 107 PS (105 hp / 78 kW) and 175 lb/ft (237 Nm) of torque and is said to be an economical and reliable diesel engine.

see also

• List of Nissan engines

en.wikipedia.com

Device

The modularity of all components of the equipment allows you to reduce downtime and speed up repairs or replacement of parts. Ease of dismantling and installation of parts, comfortable operation, and efficiency of the machine have a positive effect on the choice of consumers. The SHANTUI SD22 base is small in size, which allows the equipment to be used in limited areas.

Shantui SD 22

The tracks used to assemble the chassis can have different widths and different shapes. This assembly allows you to increase the cross-country ability and maneuverability of the equipment, and the quality of the base does not play a role in this case. The total number of rollers on the base is 16, of which a quarter are load-bearing and the rest are support rollers. This allows the bulldozer to work on sites with a slope of up to 30 degrees. To reduce vibrations and dynamic impacts on the operator, the support rollers are attached to the frame using elastic buffers.

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Operator's cabin

The cabin design is hexagonal and has high visibility. New controls for working equipment and a system for continuous monitoring of work operations are installed here. The electronic panel of the SHANTUI SD22 bulldozer displays a certain error if a malfunction is detected, which allows you to quickly determine the cause of the failure and eliminate it. The cabin is upholstered with vibration-insulating materials, which also have high noise protection. In addition, the cab is equipped with air conditioning, which creates additional pressure to prevent dust from the work site from entering the cabin. For operator comfort, the basic assembly includes speakers and a radio tape recorder.

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Hydraulic system

Piston hydraulic mechanisms Shantui SD 22

The hydraulic system includes a gear pump consisting of a pair of cylinders. Each SHANTUI SD 22 cylinder can pump hydraulic fluid in both directions. At maximum engine speed, a forcing flow is created by the cylinders. Its speed is 262 l/min. The maximum pressure in the hydraulic system is 14 MPa.

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Chassis

The width of the track track is 0.56 m. The standard set of belt includes shoes, each of which has one lug installed. Shantui SD22 tracks have two double-flange and four single-flange rollers, as well as two additional ones for belt support. Its pitch is 216 mm. When fully equipped, the machine has 38 rollers on each side.

Shantui SD 22 caterpillars

The chassis itself is represented by a suspension with a balancing weight.

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Design of Shantui special equipment

Shantui SD22 device
Shantui SD22 device has a classic layout with a front-mounted engine, behind which a prismatic, hexagon-shaped driver-operator cabin is placed. In the front part there is a blade (the type is selected by the customer), in the rear part there is a suspension system and hydraulic control of a one- or three-shank ripper. By default, the ripper is not installed.

The chassis is based on six-wheel tracks. Of the 6 rollers on each side of the machine, 2 are double-sided, the rest are single-sided. There are also 2 additional rollers in the upper part, protecting the caterpillar from sagging.

Shantui crawler bulldozers, as well as other special equipment from this manufacturer, are equipped with mechanisms and units from various global brands. For example, the power plant is taken from the American company Cummins, some hydraulic components are from the Japanese Komatsu, a number of units are produced under license from the American company Caterpillar, etc. The brand’s own development, used on other types of heavy special equipment produced by this concern, is the system centralized lubrication.

Combining components from different manufacturers into one whole is generally typical for Chinese special equipment. But we must admit that the result was an unpretentious, reliable and inexpensive car.

Transmission

The main part of the Shantui SD22 transmission is a planetary gear coupled with a multi-plate clutch. They are activated through a hydraulic system and have a forced lubrication system. The transmission also includes a 3-element, 1-phase, 1-speed hydraulic transformer.

The main drive is a bevel gear. It has a bubble lubrication system. The transmission is spiral-geared and has a 1-stage gearbox. In addition, the Shantui SD 22 bulldozer is equipped with a rotary coupling located in the oil. It is characterized by a closed type of operation, the presence of several disks and its own hydraulic system. The clutch brake element is also constantly in oil and is driven by a hydraulic system.

The final drive is a 2-stage spur gearbox, which is splash-lubricated.

Thus, the equipment can move forward at a speed of 11.2 km/h and backward at 13.2 km/h.

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Shantui SD22 description

Shantui SD22 is a bulldozer of the 15th traction class, equipped with a simple design Cummins engine (made in China). The machine can be used both on construction sites and in small quarries

The weight of the machine (without ripper) exceeds 23 tons, the power of the power unit is 162 kW (this value is achieved at 1,800 rpm). The model is capable of working on slopes up to 30 degrees. Working equipment: you can choose from a straight blade (rotating or fixed), spherical or hemispherical. The blade can be raised to a height of up to 1.2 m, with a maximum depth of 540 mm.

If the buyer also intends to equip the machine with a ripper, single- or three-post options are offered. Technical indicators for the rear working equipment are 515/555 and 666/695 mm, respectively. The ripper has a parallelogram shape and is adjustable with three teeth. The weight of this unit is 2,900 kg.

The most capacious of the available dumps is the spherical one, its volume is 7.5 cubic meters, and the hemispherical version is not very much inferior to it (capacity - 7 cubic meters).

Some characteristics of the chassis: support rollers are installed in the amount of two on each side, support rollers - six (two of them are double-edged, the remaining four are single-edged). The number of shoes in the track (prefabricated, with one lug) is 38, the pitch of the track chain is 216 mm. The balance beam has a suspended structure.

The specific pressure of the Shantui SD22 bulldozer on the ground is limited to 0.077 MPa. The speed that the model develops when moving forward reaches 11.2 km/h, and when driving in reverse – 13.2 km/h. The minimum turning radius is 3,300 mm.

Available blade widths range from 1,055 to 1,374 mm. The width of the machine itself is 3,725 mm. The remaining dimensions are as follows: height - 3,395, length (for a machine without a ripper) - 5,750 mm.

The Cummins NT855-C280 diesel is a 4-stroke turbocharged model. Cooling type: water. The cylinders (six in total) are arranged linearly. Traditionally, direct fuel injection is also present. Minimum fuel consumption is 205 g/kWh.

The gearbox, as in other equipment of this class, is hydraulic, planetary type. Forced lubrication function is available (the system consists of a lubrication pump, control valve, oil cooler, oil strainer and oil level indicator; the pressure generated by the engine crankshaft gear drives the lubrication pump). Speed ​​reduction is one-stage. Onboard clutches are also typical for such bulldozers: they are wet type, multi-disc, spring-loaded.

The Shantui SD22 bulldozer operator has at his disposal a 6-sided cab with shock-absorbing suspension, characterized by good visibility. The chair is adjustable.

Compared to previously produced bulldozers, the hydraulic system has been improved. The maximum operating pressure is 14 MPa, flow rate is 262 l/min. The pump is gear-type.

The centralized lubrication technology used in the Shantui SD22 model is the company's own development. To simplify the maintenance process, the tracks are tensioned automatically. In addition, the GPS satellite navigation system provides useful information about the condition of the vehicle.

In addition to the basic model, the manufacturer has currently released versions SD22E, SD22S and SD22D.

Among the analogues from well-known manufacturers are: LiuGong B220, XGMA XG4221L, Shantui SD22F.

Service

To care for the caterpillar belt, you do not need to have any special skills. The same applies to replacing or repairing its parts. The block design lends itself to such manipulations quite simply. This advantage is of particular value when using Shantui SD 22 in construction. This is due to the need to replace tracks depending on the quality and type of base and working conditions. Downtime when replacing belts is minimized, and productivity increases significantly.

Shantui 22

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