Domestic front loaders PK-65 are powerful mining machines widely used in construction and road work. To fill a BelAZ with a body volume of 35 tons, such a unit only needs to scoop up gravel, shavings or other bulk cargo with a bucket five times. It also performs quite well as a bulldozer: it can dig a pit, fill an embankment, and level out a site. The low price of the machine (compared to foreign analogues) also attracts consumers.
Front loader PK-65
This front loader has been manufactured since 2007 in Chelyabinsk, at ChTZ (Uraltrak tractor plant). It belongs to the Proffi series, being its most successful model (and most powerful). It should be noted that all machines in this series are equipped with excellent foreign hydraulics and a comfortably equipped operator cabin.
The machine has the following advantages:
- Reliable automatic transmissions and drive axles from the German company ZF;
- a special equipment scheme, according to which the bucket, after unloading, itself returns down to collect soil;
- panoramic glass;
- convenient joystick for controlling the operation of the bucket;
- a device for removing air from the hydraulic system, developed by ChTZ specialists;
- turn tracking system.
Photo of front loader PK-65
By the way, the PK-65 was designed in just one year. Comparing it with two earlier models of the Proffi line (PK-30 and PK-46), you can see that it has more substantial dimensions and weight, a larger bucket and a more powerful diesel engine. The design has changed for the better, the design of the handrails and wings has changed. The reinforced frame required the use of durable German axles and transmission (Zonrad Fabrilc).
Purpose
The main task of the PK-65 is to unload and load all kinds of materials. These are, for example, dry and wet sand, asphalt, gravel, clay, coal, fertilizers and agricultural products.
The loader copes well with metal shavings, wood chips, and stones. Reliable components and parts guarantee trouble-free operation in any conditions and with any materials.
This machine is also actively used for a variety of earthmoving work. For example, if you need to backfill a shaft, dig a trench, or remove a pile of earth or gravel. Thanks to its more compact dimensions than, say, an excavator, a front loader is more maneuverable, allowing it to work in tight spaces.
Comfortable and modern cabin
Fan A two-mode supply and exhaust fan with adjustable air flow distribution provides the desired comfortable working conditions for the operator at the driver's seat.
Gas stops for the hood and radiator grille The side flaps of the hood are easy to open and securely fixed in the open position thanks to the use of gas stops.
Door gas stops The cabin doors are equipped with gas stops installed in such a way that when the door is opened, they ensure smooth opening and locking of the doors.
The loader cabin is an all-metal structure with a ROPS-FOPS protection system. Installed on shock absorbers, which helps reduce noise and vibration. Right door with opening glass. The excess air pressure created in the cabin prevents the penetration of dust and moisture. The cabin is equipped with a heater and a supply and exhaust fan.
Device
The unit is equipped with an eight-cylinder YaMZ diesel engine with a power of 240 horsepower and a displacement of 14.86 liters. The ZF 4WG-210 4 hydromechanical transmission is equipped with a drive to both axles. The front axle of the ZF MT-L3105 has a rigid mount, since loading equipment rests on it. The rear axle ZF MT-L3095 has a hinged mount. The large axle ratio relieves the load on other transmission parts. Gear shifting is electro-hydraulic type. When moving forward, the loader can develop one of four speeds, and when moving backwards, one of three.
When stopping, mechanical brakes operate, while driving - hydraulic. The attachments are controlled by a servo hydraulic drive - for this there is an eight-position joystick in the driver's cabin. Frame hydraulic cylinders are used to turn the machine. The maximum pressure in the hydraulic system is 17(+5) MPa. The hydraulic system is equipped with a special device that automatically returns the bucket down (to the digging position) from the upper unloading position. It is worth noting that all hydraulics are of very high quality (Danish and Italian).
The driver's cabin has a high level of comfort. It is sealed, equipped with ROPS/FOPS protection, a reversible supply and exhaust fan with two modes, and heating. The increased air pressure created prevents water and dust from getting inside. If necessary, the glass on the right door opens.
Inside the cabin there is a seat equipped with seat belts on PILOT springs, which helps reduce vibration. Gas stops on the doors make them open and close smoothly. The cabin is quite quiet - the noise level is no more than 78 decibels.
The steering column (which can be adjusted by tilting) is equipped with instruments that monitor vehicle health indicators. These are the temperature and pressure of the engine and transmission oil, coolant temperature, air filter contamination level, on-board voltage, battery charge, number of engine hours, fuel level, engine speed. For servo-hydraulic control of all working elements, a single joystick (handle) is used, depending on the inclination of which the speed of movement of the bucket or other attachments changes.
The lighting system is also controlled from the steering column, including two rear lights and four front lights, as well as side and turning lights, and a lamp on the cabin ceiling. The on-board voltage is 24 volts. It is supplied by two batteries of 12 volts each. The battery can be disconnected, for which there is a special switch.
Operator's workplace
Monitoring and measuring instruments for the condition of the main components and lighting control are located on the steering column.
The control of the working bodies is proportional servo-hydraulic, carried out by a joystick - an eight-position handle. The angle of inclination of the handle affects the speed of movement of the working parts.
The modern PILOT seat is vibration-insulated, provides comfort, and reduces fatigue. The operator's seat meets all the requirements of European standards.
Steering column "FORSHEDA POLIPAC" - housing, hydraulic steering wheel, integrated instrument panel, switches and indicators. On the right is the steering column switch, on the left is the gearshift control knob. The steering column is tilt adjustable for operator comfort.
Specifications
Technical characteristics of the PK-65 front loader:
| Name | Meaning | Unit measurements |
| Load capacity | 6,5 | T |
| Bucket capacity | 3,6 | m3 |
| Bucket Edge Width | 3 | m |
| Unloading height (minimum at 45°) | 3,142 | m |
| Maximum bucket height | 4,308 | m |
| Bucket lip extension at 45° | 1,242 | m |
| Digging depth (maximum) | 1,5 | m |
| Wheelbase | 3,28 | m |
| Clearance | 0,42 | m |
| Turning radius (by bucket) | 6,7 | m |
| engine's type | YaMZ-238M2-21 | |
| Engine power | 176 | kW |
| Speed (nominal) | 210 | rpm |
| Forward speed (maximum) | 37,8 | km/h |
| Reverse speed (maximum) | 25,3 | km/h |
| Pull-out force | 161,8 | kN |
| Weight (operational) | 19 | T |
| Length (bucket on ground) | 8,287 | m |
| Width (with bucket) | 3 | m |
| Height (according to cabin size) | 3,44 | m |
Video review of the PK-65 front loader
Transmission and chassis system
Transmission ZF 4WG-210 4 gears - forward and 3 gears - reverse, with electro-hydraulic gear shifting.
The upper driveshaft serves to transmit torque from the power take-off gearbox to the transmission.
Lower driveshafts serve to transmit torque from the transmission to the front and rear drive axles.
Interchangeable drive axles transmit torque from the cardan drive to the wheels. The front axle is a rigid support for loading equipment.
Engine pre-heater PZhD-30 , liquid diesel highly efficient heater.
The axial piston hydraulic pump ensures the operation of the hydraulic system of the attachment.
Control
| Cabin with integrated ROPS/FOPS, backpressure, pressurized | |
| Working brakes: | |
| PK-65 | hydraulic |
| Parking brakes | mechanical |
| The attachment control is proportional, with a servo-hydraulic drive. Turns by the loader are carried out by hydraulic cylinders of the articulated frame. | |
| Maximum folding angle of semi-frames, not less, degrees | ±37° |
Transmission
| Type | hydromechanical with drive on both axles |
| Axle ratio | 20,38 |
| Pump drive gearbox | — three-flow with damper coupling |
Travel speed, km/h
| II | III | IV | I | II | III | ||
| PK-65 | 7,25 | 11,97 | 23,9 | 37,8 | 7,64 | 12,6 | 25,3 |
Models and specifications
Currently, on the domestic market of specialized equipment there is a fairly large number of varieties of front loaders, produced by companies all over the world. Among them, it is worth highlighting models from the following manufacturers:
AMKODOR
The specialized vehicles of this Belarusian company have proven themselves to be the best due to their simplicity of design, versatility and reliability . Today they are widely used in all corners of our country: from the Central zone to the Arctic.
Video review of AMKODOR loaders.
TO 18
It is a self-propelled vehicle on a wheeled chassis, equipped with a bucket.
Due to its power and excellent technical and tactical parameters, this loader can be operated as a bulldozer, capturing and transporting various materials over very long distances, independently digging trenches and leveling sites.
The cost of this specialized vehicle, on average, is about 900,000 rubles , for used equipment in good condition.
TO 30
This model is one of the popular types of self-propelled equipment with a high load capacity, equipped with a bucket driven by a hydraulic system (just like Volvo backhoe loaders). It is used to move goods over various distances, as well as to perform a wide range of planning and construction work.
Currently, the loader of this model has been discontinued, but it is still quite in demand among a wide range of consumers due to its low cost and reliability of the components and assemblies included in its package.
dimensions
| 1 | Hinge height, max., mm | 4308 |
| 2 | Bucket tilt angle at maximum height, degrees | 58° |
| 3 | Unloading height at 45°, not less, mm | 3142 |
| 4 | Bucket reach when unloading at 45°, mm | 1242 |
| 5 | Bucket tilt angle during transportation, degrees | 52° |
| 6 | Digging depth, max., mm | 150 |
| 7 | Ground clearance, mm | 420 |
| 8 | Wheelbase, mm | 3280 |
| 9 | Total length, mm | 8287 |
| 10 | Cabin height, mm | 3440 |
| 11 | Bucket width, mm | 3000 |
| 12 | Turning radius: bucket, mm | 6700 |
| 13 | Folding angle of semi-frames, degrees. | ±37° |
| 14 | Track, mm | 2160 |
| Bucket capacity, nominal, cubic meters. | 3,6 | |
| Breakout force, kgf | 16500 | |
| Tipping load in longitudinal position, 0 deg | 15000 | |
| Tipping load when folding half frames, 40 degrees | 13300 | |
| Operating weight, kg | 19000 | |
Chassis system
| The drive axles are unsteered with full 4 x 4 drive. | |
| Front axle suspension | tough |
| Rear axle suspension | articulated; pumping ± 12° |
| The differential is simple conical, with four satellites. The axle shafts are fully balanced, the connection to the hub is splined. | |
| Tire size, inch | wide-profile, 23.5-25.0 |
| Tire pressure, MPa, (kgf/cm2) | 0,3±0,025 (3,0±0,25) |
Designation of front and rear axles
Model
| Bridge | Designation | Manufacturer | |
| PK-65 | Front | ZF MT-L3105 | Germany |
| Rear | ZF MT-L3097 |
Prices and analogues
The main requirements when purchasing a loader are reliability, performance, and ease of maintenance. The main buyers of cars are state and municipal enterprises. Therefore, an important factor when choosing is the cost of the unit.
New domestic cars from the manufacturer cost 2-3 million rubles, depending on the basic configuration, brand and method of transportation. Foreign analogues of front-end loaders with a lifting capacity of 3-6 tons include:
- Models YTO/ZL30F and YTO/ZL50F from the Chinese manufacturer YTO Group Corporation. Their cost reaches 2-2.3 million rubles.
- German Weidemann W3070 CX 60 priced at 1.7-2 million rubles.
- Swedish Volvo L25B for 2.2-2.3 million rubles.
Small businesses and individuals are encouraged to purchase electric forklifts that run on battery power and mains power. They can be found in the advertisements under the “I’ll buy an electric forklift” section.
The loader is the technical characteristics of the frontal maintenance 6, the device of the wheel
In the age of rapid industrial development and the emergence of highly efficient technologies, the need for the use of new equipment capable of performing any complex tasks is constantly growing. And the main requirement that is placed on it today is its practicality and versatility.
That is, the more operations this or that technical unit performs, the better. And one of the striking examples of such functionality can be called front loaders, which, in addition to loading and unloading operations, perform other types of work.
Read about Russian-made front loaders here.
Types and varieties
Front-end loaders are usually called a type of heavy vehicle equipped with a wide bucket located in the front part, designed to collect bulk substances such as sand or crushed stone from the surface and move them.
The front loader class includes two types of vehicles: wheeled and tracked. Read about the differences between tracked and wheeled loaders here. The latter are most often used on construction sites with a large area and require additional costs for delivery to the site of operation.
Wheeled loaders are considered more versatile and easy to use. Depending on their dimensions, they are divided into the following groups:
At their core, they are self-propelled vehicles on a wheeled base , equipped with powerful high-power engines. They are equipped with various types of attachments that allow the loaders, in addition to organizing the loading and unloading of bulk substances, to work with timber, bales, barrels and other cargo. Forklifts are used to work in warehouses.
Hydraulic system
| Pump: | |
| — productivity, max., l/min | 177 |
| — pressure, max., MPa | 17,7 |
| Hydraulic cylinders, diameter, mm: | |
| - boom lift | 160 |
| - bucket tipping | 200 |
| Total cycle time, no more, sec | 10 |
Engine
| Model | YaMZ-238M2-21 |
| Manufacturer | JSC "Avtodiesel" |
| Type | V-shaped |
| Number of cylinders | 8 |
| Operating power, kW (hp) | 176 (240) |
| Crankshaft speed, rpm, nominal | 2100 |
| Torque, max., N.m, at 1250…1450 rpm | 667 |
| Engine displacement, l | 14,86 |
| Air cleaner 2-stage: | |
| — the first stage is cyclone, | |
| - second - paper filter cartridge | |
| On-board voltage, V | 24 |
| Generator, kW | 1,4 |
Bucket filling capacity
material density table
Soil
| Density, t/m | Filling, % | |
| Earth (dry) | 1,115 | 100 |
| Clay | 1,5…1,7 | 100…110 |
| Sand (wet) | 1,89 | 110 |
| Sand (dry) | 1,55 | 100 |
| Dry gravel | 1,65 | 85 |
| Asphalt | 1,6 | 100 |
| Coal anthracite | 1,046 | 100 |
| Nitrogen fertilizer | 1,25 | 85 |
| Rock | 1,6…2,0 | 75…100 |
