Thanks to the unique technical characteristics of the loader, it is more popular than its European counterparts. A large selection of attachments for the LiuGong CLG 777A excavator allows the loader to handle lump, bulk and fibrous materials. To change the working element it is not necessary to stop the work process. The backhoe loader has such qualities as the ability to overcome difficult areas on the road, easy operation and a high degree of reliability. There is one joystick to control the equipment, and two more to control the bucket.
Backhoe loader LiuGong CLG 777A
Navigation
- Features and Benefits
- Technical characteristics and dimensions
- Engine
- Device
- Operator's cabin
- Hydraulic system
- Chassis
- Electrical and lighting
- Ease of operation and maintenance
- Attachments
- Price
- Analogs
The operating conditions of the machine may be different, but the quality indicators of the work remain high. LiuGong 777 loader is characterized as a sustainable machine. This feature appeared after the installation of an integral frame, giving the machine maneuverability and the ability to move at high speeds.
Reviews of LiuGong CLG 777A are extremely positive, since this model, at a low cost, is in no way inferior to its counterparts, which cost several times more.
Excavator LiuGong CLG 777A
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Technical characteristics and dimensions
Dimensions LiuGong CLG 777A
Technical characteristics of LiuGong CLG 777A:
| Parameter | Meaning |
| Load capacity | 2 t |
| Load capacity at maximum height | 33.2 kN |
| Wheel formula | 4×4 |
| Weight | 8.4 t |
| Maximum driving speed | 36 km/h |
| Ground clearance | 0.478 m |
| Unloading height | 2.67 m |
| Breakout force | 59.6 kN |
| Digging range | 5.433 m |
| Maximum slope | 8 degrees |
| Digging axis offset | There is |
| Digging depth | 4.4 m |
| Excavator bucket volume | 0.21 cu. m |
| Jaw bucket volume | 1 cu. m |
| Unloading angle | 45° |
Dimensions of LiuGong CLG 777:
| Parameter | Meaning |
| Length | 7.247 m |
| Width | 2,280 m |
| Height | 3.518 m |
LiuGong CLG 777A fuel consumption is 250 g/kWh.
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Engine
The power plant of the LiuGong CLG 777A loader runs on diesel fuel. It is manufactured by Weichai and is certified for emission quality in accordance with Euro 2 standards. The engine model WP4G95E221 has a power of about 93 horsepower, which indicates the excellent performance of the machine. The engine starts working without preheating, this makes it possible to use the equipment at any temperature. The torque of the power plant of the LiuGong 777A backhoe loader is 383 Nm.
| Parameter | Meaning |
| Engine Manufacturer | Weichai |
| Model | WP4G95E221 |
| Number of cylinders | 4 |
| Power | 75 kW / 93 hp |
| Working volume | 4.5 l |
| Cooling type | liquid |
| Torque | 383 Nm |
| Fuel | diesel |
| Fuel tank volume | 155 l |
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Video
The Chinese brand offers consumers not only affordable prices, but also modern technologies. The LiuGong CLG 777A model uses many equipment elements from popular global brands (approximately 40-50% of the total). The power plant, transmission and hydraulic system for the model are supplied by well-known manufacturers.
LiuGong CLG 777A is manufactured using Caterpillar brand technology. This ensures high build quality. High wear resistance and operational reliability are guaranteed by high-quality steel, which allows the backhoe loader to be used in harsh weather conditions.
Modifications of LiuGong CLG 777A, intended for supply to the Russian market, are additionally adapted to local climatic conditions. This allows them to work for a long time even with a busy schedule.
The basic version of the LiuGong CLG 777A is a multi-functional vehicle with a four-by-four wheel arrangement and multi-sized wheels mounted on an all-terrain chassis. special equipment shows high efficiency when working independently and as a unit of a technological cycle. A large radius and significant digging depth increase the machine's capabilities.
Thanks to a wide range of attachments, the scope of application of the LiuGong CLG 777A is significantly increased. The ability to move with a crab stroke increases the maneuverability and maneuverability of the model, which is especially important when working in confined spaces. The highly efficient design of the machine allows it to be used in a wide range of applications.
Many positive reviews about the model indicate high quality and allow us to put it on a par with the products of the world's best manufacturers. All LiuGong products are certified to comply with ISO-14001 and ISO-9001 standards.
Device
The LiuGong CLG 777A excavator, whose technical characteristics are at a very high level, is equipped with an improved boom. The material for its manufacture was high-strength steel; the individual parts of the mechanism are connected by automatic welding. To ensure ease of operation of the implement, four hydraulic cylinders are provided, capable of performing heavy-duty operations. The maximum unloading height is 3.5 m, while the carriage can deviate from the neutral axis of the machine by 0.5 m in any direction. The outline of the arrow has an arched shape.
Excavator LiuGong CLG 777A. Photo with raised bucket
The work cycle is also significantly simplified, because The LiuGong CLG 777A backhoe loader is equipped with a return to excavation function when performing excavation work.
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Exterior and interior
The exterior of the Amkodor 332C4 looks very laconic, as they say: “the product is obvious.” The large viewing windows and front floodlights immediately catch the eye. The car's profile reveals powerful wheel fenders and a fairly high cabin position. The inside of the loader looks no less strict. High-quality, discreet finishing materials and a functional work panel complete the rather conservative interior. If you compare all three loaders, it is very difficult to single out one, since they are designed on the basis of the “same” platform, and everyone has a different opinion on taste and color.
Operator's cabin
To ensure operator safety, the developers have provided full glazing in the cabin. The viewing angle from it is 360 degrees. FOPS and ROPS safety systems are also installed to protect the cab and operator when objects fall from a height and the LiuGong CLG 777A excavator rolls over. The glass has a green tint and protects the operator from ultraviolet radiation. The windows themselves open for unhindered air circulation. To allow inspection of the work site when excavating, the rear window can be opened completely, working on a hinge. In this position, the window creates a canopy for protection from precipitation.
Cabin LiuGong CLG 777A. Photo
To protect the operator from the effects of high levels of noise and vibration, the designers made the cabin protected from these irritants. This allows the driver to concentrate on the process at hand and also reduces fatigue during long shifts. The noise level in the cabin does not exceed 78 dB.
The racks are curved, which adds additional aesthetics and ergonomics to the cabin. For operator convenience, the cabin floor of the LiuGong CLG 777A excavator is designed flat, and the doors and steps are wide. To create a microclimate in the cabin, ventilation openings are provided that ensure optimal distribution of air flow. To maintain the required temperature, heating and air conditioning systems are provided.
LiuGong CLG 777A cabin. Photo
The operator's seat of the LiuGong CLG 777A backhoe loader is very comfortable, it is equipped with lateral support, armrests and a seat belt. To establish it in the optimal position, it is necessary to adjust several parameters. The cabin is also equipped with a radio, a high-quality lighting system, and there are several compartments for storing things.
Levers are used as control elements for various working parts of the LiuGong CLG 777A loader. When working with outriggers, you must use the handle located in the middle between the bucket controls. To control the movement of the loader, a double brake pedal and a floor pedal are used. The steering wheel can be adjusted to suit the individual characteristics of the operator. When moving, it is especially convenient to use the rear view mirrors. They are located on the sides of the car and inside.
To control individual work operations of the LiuGong 777A, buttons are used on the control panel located on the right hand of the operator. Also, some functions are placed on the front panel.
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Features of the device and operation
- Reinforced underbody protection ensures unhindered off-road driving. In addition, the developers have significantly increased the ground clearance compared to its predecessor, the 777 model. In addition, for the sake of cross-country ability, the car was equipped with wide-profile “toothy” tires that perfectly withstand driving on relief and rocky terrain. These tires are puncture-proof because they are made of thick rubber. We also note the short body overhangs, all-wheel drive transmission and high approach and departure angles. Increased smoothness and low noise levels contribute to comfortable work – both off-road and when driving in urban conditions.
- The machine is equipped with a diesel power unit from Weichai. The engine performance is 93 horsepower, and the level of harmful emissions corresponds to the environmental category Euro 2 and higher (depending on the model year). The engine has a pre-heater and liquid cooling, which ensures uninterrupted operation and quick start of the engine in any weather - hot or cold.
- The LiuGong CLG 777A backhoe loader is equipped with an improved boom made of high-strength steel. All other elements of the boom are reinforced at the factory using automatic welding. In addition, the design also includes four hydraulic cylinders, which are necessary to ensure the reliability of the components and to avoid overloading them during heavy-duty operations. The unloading height can reach 3.5 meters, and the deviation of the carriage from the neutral axis of the machine is 0.5 meters in any direction. The arrow itself has an arched shape. In addition, the Liugong CLG 777A backhoe loader is equipped with an automatic return to excavation system during excavation operations.
- The operator's cabin of the CLG 777A backhoe loader is an example of simplicity and functionality, as well as high technical solutions. Firstly, it should be noted that the cabin is completely glazed, thanks to which the viewing angle from the cabin is 360 degrees. The windows themselves are slightly tinted for better protection from the sun. Sun visors are also available. In addition, the cabin is reliably soundproofed and thermally insulated, and is also protected according to FOPS and ROPS standards. Compliance with these international standards means that the driver will always be protected in the event of a forklift overturning or overturning. The window can be opened, thereby ensuring unhindered air circulation in the cabin. If necessary, the rear window can be fully opened to inspect the work site, for example when excavating. The window opens upward according to the “pull” principle, thus creating a canopy for protection from precipitation. The cabin is quite comfortable - quiet and spacious, and the driver is practically not distracted from work. The absence of noise and vibration reduces stress and fatigue levels for the driver, and as a result, he can work longer. According to official measurements, the noise in the cabin is no more than 78 decibels. To give the cabin ergonomics and aesthetics, the racks are curved, and convenient access to the cabin is provided by a wide doorway and two steps with anti-slip rubber coating. Of course, you can adjust the microclimate in the cabin to your liking, thanks to the presence of air conditioning and heater. Coziness and a pleasant atmosphere in the cabin are additionally created by a CD radio, a customizable lighting system, and the presence of many glove compartments and compartments for storing large and small items. Among the controls, we note levers and switches, as well as a double brake pedal and an accelerator (gas pedal). The steering wheel is of course adjustable, as is the operator's seat. Many functions are controlled on the front panel.
- The hydraulic system is from Husco. Equipped with a six-section hydraulically driven distributor. In six-section mode, you can perform excavation work, and in cross-section mode, you can work as a loader. Also included is a double gear pump from Permco. Among the advantages of the hydraulic system, we note the following features:
- The dimensions of the boom can be reduced due to combined hydraulic cylinders, resulting in improved visibility from the cab.
- The boom is characterized by stability and immobility even during sudden movement or maneuvering of the machine - such stability is facilitated by the presence of a hydraulic lock.
- For more reliable fixation of attachments, separate hydraulic outlets are provided.
- Powerful hydraulic cylinders in their extreme position provide a good shock-absorbing effect. Thanks to this, there are no problems with the accuracy of operations, even in the dark.
- All components and assemblies are located directly under the boom, which greatly facilitates the inspection of individual parts of the machine. The engine compartment cover opens quite easily and is fixed in the upper position - thanks to gas-filled shock absorbers (supports). The convenient location of filters for purifying oil, fuel and air will not cause problems when replacing them quickly. The radiator grille can be locked with a key and can be easily removed and reinstalled. Behind the radiator grille there is a power switch and a battery.
Hydraulic system
The Liugong 777 hydraulic system is equipped with a 6-section hydraulic distributor manufactured by the American company Husco for excavator work and a three-section hydraulic distributor for use as a loader. A double gear pump manufactured by the American company Permco is also installed.
LiuGong CLG 777A bucket hydraulics. Photo
The advantages of installing such a hydraulic system include:
- Possibility to reduce the dimensions of the boom by combining hydraulic cylinders. As a result, visibility from the cockpit has increased significantly.
- Stability and immobility of the boom when moving the machine, which is ensured by a hydraulic lock.
- To install mounted parts, a separate hydraulic outlet is used.
- Cushioning effect when hydraulic cylinders reach the extreme position, which increases the accuracy of the operations performed.
When operating the backhoe of the Liugong 777a backhoe, the risk of damage to hydraulic lines is eliminated due to their convenient location. They are located at the top of the boom, which also allows for quick and high-quality maintenance. Hydraulic lines are located so as to eliminate the possibility of them becoming tangled or kinked. The position of the hydraulic cylinders is also very specific, which is necessary to protect them from mechanical stress during operation.
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Chassis
Wheels LiuGong CLG 777A. Chassis
The Italian company Carraro supplies the Liugong company with axles and hydromechanical transmissions. Due to their high strength and reliability, the LiuGong CLG 777A loader can be used everywhere. To ensure the ability to work in bad road conditions, a locking differential on the rear axle is used. High quality wheels are installed for the same purpose. On the front axle there are 14-17.5NHS-14PR L-2B, on the rear axle there are 19.5L-24-14PR-TLR-4. Both types have a raised tread.
To increase the maneuverability of the equipment and reduce the turning radius, the designers provided the ability to rotate the inner wheel by 50 degrees, and the outer wheel by 39 degrees.
Wheel LiuGong CLG 777
The brakes are disc brakes operating in oil. To simplify control, hydraulic activation and automatic release of the main brake are provided. An element with manual activation and disengagement using a spring is used as a “handbrake”.
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Chinese excavator loader LiuGong CLG 777A
The Chinese company LIUGONG began its work in 1989 with the production of wheeled front-end loaders, or rather not with production, but with the assembly of machines from imported components. This style of work of the company has been preserved to this day, but only the main components and assemblies are imported, for example, transmissions or engines. Most of the parts have long been produced at the company’s factories, where more than 7,000 people work in 15 cities in China.
Currently, the company is closely cooperating with global giants Cummins, Caterpillar, Deutz in the creation of joint ventures for the production of one or another type of machinery or equipment. This also determines the high quality of the machines produced, some of which are our own developments, and some are analogues of a specific model that has proven itself well on the market.
Backhoe loaders are no exception, in particular the LiuGong CLG 777A backhoe loader, which is an analogue of the British model JCB-3CX, which is considered one of the best in its class. The Chinese car is not an absolute copy - it has a different engine and transmission, a different hydraulic system, but in terms of basic indicators and type of construction, these two cars correspond to each other.
Design Features of LiuGong 777A
The basic model of the LiuGong 777A backhoe loader is designed as a universal machine with wheels of different sizes on a 4x4 all-terrain chassis. As an excavator and as a loader, the machine is very effective when working independently and as a unit of the technological cycle in production or in a quarry.
A significant digging depth of 4.44 meters and a soil development radius of up to 5.4 m make it possible to use it on construction sites and in the installation of pipelines, cable lines, construction and maintenance of hydraulic structures and public utility facilities.
An excavator bucket with a volume of 0.21 m³ is unloaded at a height of 3620 mm, which allows, when digging a pit or trench, to simultaneously unload soil onto a dump truck or trailer. It is also possible to develop vertical cuts in quarries at a height of up to 6 m in backhoe mode.
The boom rotation angle of 182˚ and the ability to operate in offset digging axis mode allow the use of Chinese LiuGong CLG 777A excavator loaders in very cramped conditions of urban areas or construction sites of limited size. This is in great demand in public utilities and repair and installation organizations.
Chassis and steering
As already mentioned, the chassis of the CLG777A LiuGong excavator loader is built according to a 4x4 layout with only the front wheels turning. The turning radius is 4.225 mm in transport position. The 4WD drive system allows you to move at speeds of up to 36 km/h and confidently move both on and off-road. The steering is equipped with a priority valve, which increases the maneuverability of the machine and smooth control.
The level of safety of work and movement is increased by wet disc brakes with an air-hydraulic drive type. The Carraro transmission and axles are made in Italy and have a high level of reliability.
Engine and hydraulics
Chinese backhoe loaders CLG777A LiuGong are equipped with Weichai WP4G95E221 Euro 2 diesel engines. They produce 93 hp. with a torque of 383 Nm. This allows us to consider the backhoe loader as a very power-equipped machine. The cold start system increases the reliability of starting and stable operation of the engine.
The hydraulics of the machine have the following features:
- Pump type tandem;
- Capacity 140 l/min;
- Working pressure 24 MPa;
- There are additional connectors.
Additional hydraulic connections are located on both the front and rear boom of the machine. This allows you to quickly change the type of attachment and perform a wide range of operations, both in excavator mode and in loader mode.
The Chinese-made LiuGong excavator loader, when operating as a front-end loader, has the following technical characteristics:
- Maximum cargo weight 3320 kg;
- Feeding height 2690 mm;
- Basic bucket width 2.26 m;
- Horizontal reach 71.3 cm;
- Lifting force 5960 kg.
The large width of the loader tires allows you to create significant traction force on any type of soil or surface, and the efficiency of work in front loader mode increases significantly. The front lift mechanism provides a clear view of the work area. In terms of build quality and service life, these loaders are not inferior to their analogues.
Electrical and lighting
For high-quality illumination of the work site, four front and four rear lights are provided. This allows you to work at any time of the day. Liugong 777 uses headlights and “dimensions” when traveling on roads. At the rear, the side lights are located on outriggers that protrude beyond the main dimensions of the car.
Headlight LiuGong CLG 777
For uninterrupted operation of the equipment, a 12 V and 95 Ah battery, as well as a 0.1 kA generator are used.
The wiring in the Liugong 777 loader has been improved compared to the previous model; it is made of wires with a larger cross-section, which does not allow them to heat up under load. The safety block is located directly in the operator's cab. In the event of a short circuit, the main relay immediately switches off the entire system.
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Comparison of LiuGong with SDLG and why you should not buy SDLG.
Buyer Anev80: Good day. Please, help. I settled on LIUGOHG CLG 83 and SDLG LG 936, I can’t decide on the final choice. I would like to understand the pros and cons of these models, hear feedback from owners and knowledgeable people. Thank you in advance.
User bombus: Hello. I'll try to help you with your choice.
LIUGOHG – I haven’t heard of such a manufacturer. But seriously, it’s a worthy choice. Both cars are equipped with a jointly produced Weichai-Deutz WP6G125E22 engine and hydromechanical gearboxes with a 4-element GTR. There are differences in the hydraulic system - the SDLG has single-circuit hydraulics, with one pump. LiuGong has a combined hydraulic system for steering and working equipment through a priority valve, which improves the performance of the loader and reduces fuel consumption.
Further, one of the major differences is that the SDLG (as well as all other Chinese loaders, except LiuGong) does not have ROPS/FOPS.
Another difference is the factory warranty. SDLG has 1500 hours, LiuGong has 2000 hours.
Next, I will post photographs that show, at first glance, little things that, nevertheless, can speak about the quality and technical perfection of the entire machine as a whole.
The one-piece hinged hood of the LiuGong CLG 835 (unlike the SDLG in the third photo) greatly simplifies the procedure for maintenance and routine repairs.
LiuGong bucket teeth have replaceable crowns, which simplifies and reduces the cost of replacing them.
Also, the cutting surface of the LiuGong bucket is coated with ferroalloy, which prevents premature wear of the bucket itself. (I don’t have a photo at hand, I’ll post it as soon as I can).
The first photo is LiuGong, the second is SDLG.
Further. The first photo is LiuGong brake pipes. The second photo shows how the brake hoses are connected to the SDLG brakes. Where the probability of damage is higher is up to you to decide
By the way, about the brakes themselves. Both cars have open brake discs. However, in SDLG they “stick out” between the wheel and the loader frame (first and second photos), and on LiuGong they are “hidden” inside the wheel rim (third photo).
Protection of headlights and hydraulic cylinder rod with metal edging (first photo) is a good help from falling stones, unlike SDLG (second and third photos)
Pay attention to the RVD wiring and the parking brake. SDLG is on the left, LiuGong is on the right.
Let's move on to the cockpit. The door opening of the CLG 835 is wider than that of the LG 936, and LiuGong also has two doors - on both sides of the machine.
LiuGong comes standard with a USB radio and air conditioning. From SDLG – for an additional fee. fee.
Now I’ll list what the SDLG cabin doesn’t have, but the LiuGong does have: a tilt-adjustable steering column, a rear wiper, a windshield washer, film heated glass, coat hooks, niches for small items, a sunshade (the SDLG has a small visor), and a window too. it seems not.
Conclusion: LiuGong is far ahead in terms of operator comfort.
The LiuGong has better rearward visibility due to the “sloping” hood. By the way, LiuGong has mudguards on the front wings, but SDLG does not.
Final response from Aven80 buyer: bombus thanks for the answers. The choice is obvious.
And I advise you to think about it if you are comparing the SDLG and LiuGong brands in general.
Ease of operation and maintenance
To maintain the lid when the hood is open, the Liugong 777a uses gas-filled shock absorbers. To carry out technical inspection or repair of individual machine parts that are located directly under the boom, a support is used under it. Ease of inspection and replacement of filters for purifying oil, air and fuel is ensured by their convenient location. Check points and filler necks for these fluids are also easy to maintain. It is worth noting that the fuel consumption of LiuGong CLG 777A is quite low, which makes the car economical.
The radiator grille is locked with a key and can be easily removed and reinstalled. Directly behind it there is a battery and a power switch.
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Attachments
Bucket pin bushing CLG 777
In the basic assembly of the Liugong 777a, the bucket has a capacity of 0.22 m3. Buckets with a volume of 0.09 m3 to 0.36 m3 can be ordered separately, which can be equipped with teeth (bolted on) or a plate, as well as side cutters. The most commonly used buckets are 4 in 1 and 6 in 1, which are jaw-type. Additional equipment - a jackhammer, hydraulic shears and a vibrating compactor are not included in the standard assembly of the LiuGong CLG 777A excavator.
LiuGong 777 bucket arm
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