New model - improved characteristics
Photo source: kirovets-ptz.com
The K-708UDM universal road machine replaced the K-702UDMVA-UDM2 model. The power of the new product was increased by 27.5%, productivity increased by 1.5-2 times. To achieve this, the plant’s specialists made a number of improvements: the new product was equipped with a fuel tank designed for 600 liters, and the hydraulic cycle time was halved to 12 seconds. The K-708UDM was equipped with an 8-cylinder V-shaped diesel power unit YaMZ-238ND5 with turbocharging and water cooling, which produces 300 hp.
The load capacity of the UDM was increased to 7 tons, the capacity of the bucket is now 4.1 cubic meters. m, the width of the bulldozer blade is 3.16 m. The operating weight of the new product is 23 tons. I would like to separately note that the Kirovets K-708UDM universal road vehicle is fully prepared for the installation of a remote access system.
By the way, this year the new UDM could be seen at the stand of the St. Petersburg Tractor Plant, which participated in the bauma CTT RUSSIA exhibition.
Photo source: kirovets-ptz.com
Characteristics
In essence, the Kirovets K 708 is a modular tractor that can serve as a base for creating other units of construction equipment. The structural weight of the machine is 12 tons, which is not bad for a low-power tractor. The tractor is produced on an articulated base, which provides excellent maneuverability and maneuverability. Interestingly, the width of the model does not exceed 2.5 meters, which ensures the possibility of movement on public highways.
Read Tractor K 704 “Stanislav”: a new generation universal tractor
The maximum transport speed is 50 km/h, which also looks very attractive. Among the common features, we can highlight a comfortable all-metal cabin with panoramic glazing, proper arrangement of the main components and elements (open access), operating temperature range from -40 to +40 degrees. The last nuance guarantees the correct operation of the equipment in all regions of the country.
Initially, it was stated that “Kiryusha” would be created only from domestic parts, however, the designers allow deviations from this rule in relation to the transmission and power plant. In particular, the tractor can be equipped with two types of diesel engines:
- YaMZ-238NDZ.
— GUMMINS 6CTA8/3-C215.
The power of the units will vary between 180-280 hp. With. The basic package will necessarily include the PZD-30 cold start system. If we talk about transmission, two options are also allowed here:
Automatic transmission ZF 4WG190 with 4/3 gears. A torque converter is installed here, ensuring smooth switching between modes without interrupting the power flow.
Mechanical transmission with hydrostatic control. The number of gears is 4/4, and switching also occurs without interruption in the power flow.
The fuel tank holds 320 liters, taking into account economical fuel consumption even at peak loads, this ensures long battery life.
Operator's cabin: work in comfort
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The basic configuration of the K-708UDM requires an air conditioner in the cabin. There is also a display for indicating operating and emergency parameters and a joystick for controlling the boom and bucket. In addition, for the convenience of the operator, a sprung seat with a 2-point seat belt and adjustments allowing you to customize the workplace was installed in a two-seat cabin with tinted windows. There is also an instrument panel with control of the loader systems in automatic mode.
Soundproofing in the cab with built-in ROPS/FOPS system dampens all uncomfortable sounds, while improved visibility and adjustable rearview mirrors allow the operator to stay focused on work. The machine is equipped with a rotary post system, which allows you to switch from operating a loading bucket to operating a blade in a few seconds.
Kirovets K-708UDM
The Universal Road Machine (UDM) is a unique combination of the functions of a front loader and a wheeled bulldozer. Developed by order of the Ministry of Defense in the early 1990s, it does not lose its relevance today.
Specifications:
| MAIN PARAMETERS AND DIMENSIONS | INDICATORS |
| MAIN TECHNICAL CHARACTERISTICS OF THE KIROVETS K-708UDM MACHINE | |
| Overall dimensions of the machine, mm: | |
| - length | 10550±50 |
| - width | 3160±10 |
| - height | 3780±50 |
| Weight, kg | |
| — operating weight, kg | 23000 |
| ENGINE | |
| Model | YaMZ-238ND5 |
| engine's type | 8-cylinder, V-shaped diesel engine with turbocharging and water cooling |
| Rated power, kW (hp) | 220 (300) |
| Operating power, kW (hp) | 198,5 (270) |
| Rated rotation speed, min -1 | 1900 |
| Maximum torque, Nm (kgfm) | 1280 (130) |
| Engine displacement, l | 14.86 |
| Specific fuel consumption, g/(kW×h) (g/(hp×h)) | 220 (162) |
| Autonomous engine preheating | "Pramotronik" 30ZhD-24 |
| TRANSMISSION | |
| Type | hydromechanical, semi-automatic, with torque converter |
| Transmission | 4x4, dual-mode, with electro-pneumatic gear and mode switching |
| Number of modes | two: worker and transport |
| Number of gears in each mode: | |
| - forward drive | 2 |
| - reverse | 2 |
| Drive axles | sub-engine and cargo with differentials, planetary and final drives, self-locking freewheel |
| Differential | switchable |
| CHASSIS | |
| Axle suspension | Balanced on the sub-motor frame and rigid on the portal frame |
| Industrial tires | 29.5/75R25 |
| Rims | collapsible |
| Service brakes | dry, block type with pneumatic drive |
| Parking brake | block-disc with pneumatic spring drive |
| ELECTRICAL SYSTEM | |
| Rated network voltage, V | 24 |
| Rechargeable batteries: | |
| type | starter, lead-acid |
| capacity, A h | 190 |
| quantity, pcs. | 2 |
| Generator: | |
| type | AC with built-in rectifier |
| power, kWt | 2 |
| On-board computer | display showing all the main parameters, rear view camera, optionally a dynamic weighing system for the load in the bucket |
| CABIN | |
| The cab is two-seater, with a central driver's seat, a built-in safety cage that protects the operator from rollover protection (ROPS) and from falling objects (FOPS). | |
| Hydrostatic control of the loader's rotation, an adjustable steering column, and an instrument panel with automated control over the operation of the loader systems help reduce operator fatigue. Convenient location of controls, sprung driver's seat, tinted windows. | |
| Regulatory safety requirements, including sanitary and hygienic requirements, rules and other local acts in the field of labor protection, fire and electrical safety: | |
| — Permissible sound levels, equivalent sound levels in accordance with SanPiN 2.2.4.3359-16 “Sanitary and epidemiological requirements for physical factors in workplaces” in cabins and | |
| — Allowable equivalent adjusted levels of vibration acceleration in accordance with SanPiN 2.2.4.3359-16 “Sanitary and epidemiological requirements for physical factors in the workplace”: | |
| local vibration, no more than 126 dB; | |
| general vibration: category 1 - along the Z axis, no more than 115 dB, along the X, Y axes, no more than 112 dB. | |
| — The concentration of harmful substances in the air of the working area is not higher than the maximum permissible concentration. | |
| — Acceptable microclimate parameters in accordance with SanPiN 2.2.4.3359-16 “Sanitary and epidemiological requirements for physical factors in the workplace.” | |
| — Levels of standardized indicators of light environment parameters in accordance with SanPiN 2.2.4.3359-16 “Sanitary and epidemiological requirements for physical factors in the workplace” | |
| HYDRAULIC SYSTEM OF WORKING EQUIPMENT | |
| Hydraulic system type | volumetric hydraulic drive |
| Pump type | lamellar |
| Pump capacity, l/min | 270…300 |
| Safety valve setting pressure, kgf/cm 2 | 230 |
| Type of hydraulic cylinders | single-stage, double-acting |
| Number of hydraulic cylinders of bulldozer equipment, pcs.: | |
| lifting and lowering bulldozer blade | 1 |
| blade skew | 1 |
| grader mode of the blade | 2 |
| Number of hydraulic cylinders of loading equipment, pcs.: | |
| bucket rotation | 1 |
| boom lift | 2 |
| Working hydraulic cycle, s | 12 |
| BULLDOZER EQUIPMENT | |
| Blade width, mm: | |
| in bulldozer position | 3160 |
| in a grader position with a blade installation angle of 26° | 3030 |
| Blade height, mm | 1100 |
| Maximum depth of the blade below the supporting surface of the wheels, mm, not less | 340 |
| Angle of installation of the blade in the grader (left or right) position, degrees. | 27° |
| Maximum blade lateral angle, degrees. | 11±1° |
| EARTHING AND LOADING EQUIPMENT | |
| Nominal load capacity of the bucket, t | 7 |
| Breakout force developed by hydraulic cylinders, kN | |
| - arrows | 128 |
| - ladle | 226 |
| Bucket capacity, m 3 | |
| — geometric | 4,1 |
| — nominal | 4.5 |
| Cutting edge width, mm | 3100 |
| Maximum unloading height at an unloading angle of 45° along the cutting edge of the bucket, mm | 3260 |
| Reach of the bucket edge at maximum unloading height and unloading angle of 45°, mm, not less | 1300 |
| Bucket tilt angle at ground level, degrees | 40 |
| ALL-SEASON LUBRICANTS AND OPERATING FLUIDS | |
| - engine oil | SAE10W-40 API CI-4 |
| - transmission oil | SAE80W-90 API GL-5 |
| — hydraulic oils and special fluids operating conditions at temperatures | from +40ºС to -50ºС |
Own gearbox
Photo source: kirovets-ptz.com
The Kirovets K-708UDM universal road machine is equipped with a gearbox developed by engineers of Petersburg Tractor Plant JSC. This is a hydromechanical, semi-automatic transmission with a torque converter and a switchable differential. The transmission has two operating modes (transport and work) and 4/4 gears (forward/reverse) with electro-pneumatic switching. The specific fuel consumption of the new model K-708UDM is 220 g/kW*h (162 g/hp*h).
The drive axles of the front loader with bulldozer equipment K-708UDM are sub-engine and cargo axles with differentials and planetary final drives.
Possibilities
The main advantage of Kiryusha is its versatility. The modular tractor can operate in the following configuration: - Truck tractor, with a load capacity of 12 tons. - Semi-trailer, with a load capacity of 20 tons. — Kung, with a lifting capacity of 8 tons. - Tank truck. - Crane arm. — Excavator. — Snowblower. - Drilling equipment. — Cable layer. — Leveling bucket. — Welding unit for 4 stations. - Support carrier.
Given this functionality, the Kirovets K 708 can replace an entire fleet of vehicles, being an excellent alternative to Western vehicles of 3-4 traction class.
Attachments: wide choice
Photo source: kirovets-ptz.com
As mentioned above, the new product of the St. Petersburg Tractor Plant can be used in a wide variety of industries with varying work intensity. This can be achieved, among other things, by a large selection of replacement work equipment.
Thus, the Kirovets K-708UDM can be equipped with two types of grippers (for pipes and logs), rock buckets, a snow blade, pallet forks, as well as a dynamic weighing system. To make it more convenient to work with replaceable equipment, hydraulic and mechanical quick couplers are provided.
A little history
A prototype of the tractor was demonstrated to the general public at the Moscow Agrosalon in October 2016. A distinctive feature of the K-708 is the use of components that are produced by Russian enterprises. The prerequisites for the creation of the tractor were the “Import Substitution” program, introduced by the country’s government in 2015. The tractor should be an excellent replacement for Western models of equipment and products of the Kharkov Tractor Plant. 50 million rubles were allocated for development, and we can say with confidence that the funds were not wasted.
Immediately after the exhibition, “Kiryusha” went to field tests, which took place in the Leningrad region. In general, the testing was successful, although there were some technical hiccups. After testing, the designers began work on several prototypes, and announced that the vehicle would go into mass production in 2022. The technical characteristics of the K 708 are not disclosed for obvious reasons, however, some information has already been leaked to the network, and we will be happy to share this information with you.
Replacement equipment and additional equipment
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The range of replacement equipment includes a standard and basic bucket with a volume of 4.1 cubic meters. m, as well as a bucket for light materials with a volume of up to 7 cubic meters. m, jaw gripper for forestry services, forks for agricultural work, automatic centralized lubrication system.
KIROVETS K-708PK7 is a universal loader with a wide range of applications. Depending on the customer’s wishes, it can be equipped with:
- various types of tires (tire size 29.5R25 or 26.5R25);
- camera and electrically controlled rear view mirrors;
- cargo weighing system;
- preparing the vehicle for installation of a remote monitoring and data control system;
- equipment for working in the Far North;
- ability to be serviced from the ground.
Like most road, construction and special machines of the St. Petersburg Tractor Plant, KIROVETS K-708PK7 can be made in both arctic and tropical versions.
