HITACHI ZX520LCH-6A Classic inheritance, brand new upgrade

HITACHI ZX520LCH-6A Classic inheritance, brand new upgrade

Large excavator

ZX520LCH-6A

Summary

Performance stable, high quality, superb handling, attentive service

Hitachi Construction Machinery's nearly 100 years of strong independent research and development strength and based on the rich field experience around the world, the achievements of the product stable performance and excellent quality. The new ZAXIS-6A series is developed with the intention of long-term operation of the machine and optimizing the customer experience. It optimizes performance stability, operation efficiency, handling comfort and safety, after-sales support, and provides you with comprehensive solutions to help you realize your dreams and forge a wonderful future.

 

Main technical specifications:

Power: 296 kW

Machine weight: 48400 ~ 48600 kg

Bucket capacity: 2.1 ~ 3.0 m3

 

Configuration parameters

 

Standard: ● Option: ○ Reference value: * To be refined: /

 

 

 

1. Performance parameters:

 

force	Traction force	329	kN·m
	Bucket Digging Force - ISO	296/295	kN
	Bucket Rod Digging Force - ISO	224/263	kN
	Rotation torque	148	kN·m
speed	Reverse speed	9.3	r/min
	行走高速/低速	5.5/3.7	km/h
noise	Operator voice pressure （ISO 6396:2008）	/	dB（A）
	Average external sound pressure （ISO 6395:2008）	/	dB（A）
Other	Ability to climb slopes	70%
	Ground is higher than pressure	82	kPa

 

 

2. Powertrain:

 

Engine Model	Isuzu 6WG1
rated power	296/1800	kW/rpm
Maximum torque	2050/1300	Nm/rpm
discharge volume	15.681	L
Emissions Level	Country 4
Emissions technology routes	EGR

  

 

3. Hydraulic system:

 

The technical route	Electrically controlled positive flow
Main Pump Brand / Model	/
Main pump discharge	/	cc
Main valve brand / model	/
Reverse motors and gearing brands / models	/	Double turnaround
Walking motors and gears brands / models	/
Maximum traffic on the main system	2*385+34	L
The overflow valve settings:
The working oil road	31.9	MPa
Turning the oil road	28.4	MPa
Walking the oil road	35.3	MPa
Leading oil road	3.9	MPa
Power exertion	35.3	MPa
Tank specifications:
Armed cylinder	2-170-115	mm
Bulk fuel tank	1-190-130	mm
The shovel oil tank	1-170-120	mm

  

 

4. Working appliance:

 

	ZX520LCH-6A	ZX520LCH-6A(BE)
Move your arms	7000	6300	mm
Fighting clubs	3400	2900	mm
The shovel fighter looks	2.1/2.5/3.0	2.5/3.0	m³
Corresponding material density	1800/1500/1100	1800/1500	kg/ m³

 

 

 

5. The chassis system:

 

Weight of weight	9080	kg
Number of double-barred trackpads - one side	53	section
Number of cogs - one side	2	individual
Number of support wheels - one side	9	individual
Running board width	600	mm
Chainrail steering agency - single side	3	individual

 

6. Amount of oil and water added:

 

Fuel tank	675	L
Hydraulic system	517	L
Hydraulic fuel tank	290	L
Engine oil	52.5	L
Antifreeze Solution	70	L
Walking brake gear oil	2*11	L
Reverse gear oil	2*6.7	L

 

 

7. Form factor:

 

		ZX520LCH-6A	ZX520LCH-6A(BE)
A	Wheel spacing	4470	4470	mm
B	Lower walking body length	5470	5470	mm
C	Gap between weight and ground	1270	1360	mm
D	Backend pivot radius	3680	3680	mm
D'	Backend length	3660	3660	mm
E	Total width of the upper pivot platform	3055	3055	mm
F	Total height of the driver's room	3360	3360	mm
G	Minimum distance from the ground	560	560	mm
H	gauge	2740	2740	mm
I	Trackboard width	600	600	mm
J	Lower walking body width	3340	3340	mm
K	Total width	3522	3522	mm
L	Total length	12040	11380	mm
M	Total arm height	3450	3900	mm
N	Running range height	1150	1150	mm
Note: Does not include track plate flange height

 

 

 

8. Operational scope:

 

		ZX520LCH-6A	ZX520LCH-6A(BE)
A	Maximum excavation radius	12060	10820	mm
A'	Maximum excavation radius (on the ground)	11860	10520	mm
B	Maximum excavation depth	7860	6290	mm
B'	Maximum excavation depth (2.5 m plane)	7700	6040	mm
C	Maximum cutting height	10980	10790	mm
D	Maximum removal height	7560	7280	mm
D'	Minimum uninstall height	2870	3170	mm
E	Minimum rotation radius	4840	3920	mm
F	Maximum vertical digging depth	7170	4740	mm
Note: Does not include track plate flange height

Stable and reliable, high quality

 

 

1. Reliable and durable environmental technology, overseas sales of more than 100 thousand units, domestic users test more than 40,000 hours.

 

• The new 6A engine is equipped with a post-processing filter, which reduces atmospheric pollution by capturing PM particulates from the exhaust gas and burning them efficiently in the filter. Waste gas emissions are reviewed by the Fourth National Emissions Standard.

• The interior of the reprocessing filter is made of high-end ceramic materials, which are durable.

• Using the same environmental protection technology Hitachi construction products have been sold overseas, mature and stable performance, excellent quality and reliable.

 

2. Core technologies are upgraded, high-quality genes are more reliable

 

• Core components such as engines, hydraulic pumps, and main control valves are imported to be more durable and maintain value.

• The oil sprayer has been completely upgraded, the spray needle moves more smoothly and is more durable;

• DLC coating (similar to diamond carbon film) with hardness close to diamond is used on high-pressure oil pump and injector, which has high wear resistance and low friction;

• The fuel road is positive pressure type, effectively preventing air from entering the high pressure pump and improving the durability of the high pressure oil pump and oil sprayer.

• It is fitted with a wax-resistant oil road to prevent the engine from stopping after starting work when it is cold because of fuel wax.

• The electrical and mechanical energy of alternating current generation increased, and the battery was not easy to lose power, enhancing the engine's start-up performance.

• The radiator is increased, and the thermal balance performance is better.

 

 

3. Enhanced overall design to ensure stable attendance

 

• The front-end working unit uses internal welding and complete welding, and further optimizes the welding process to ensure long-term stable operation;

• The weight bearing area of the boom is strengthened, and the supporting part of the arm is strengthened, which improves the overall strength and is more suitable for high intensity mining operations.

• The new rock bar, bar teeth / cogs / side teeth are designed in a new way to reduce drag and be more efficient. The back of the shovel has a double-sided arc, making it more suitable for excavation work. Adding abrasion-resistant plates to the bottom of the shovel improves durability.

• Standard reinforced double-barred track plate, more suitable for mines and gravel sites;

• The car adopts high strength LC lengthening structure to improve the stability of the whole machine. At the same time, the removal duct is standardized, which effectively protects the removal hoses and the central steering joint.

 

 

 

High yield and efficiency

 

 

1. New artificial intelligence operates the hydraulic system, controls upgrade, and works efficiently

 

• The new HI0SV artificial intelligence hydraulic system is best controlled, smooth, fast and comfortable for composite work, and effectively reduces hydraulic pressure loss, greatly improves energy utilization, and improves operation efficiency and fuel efficiency.

 

• The new engine has significant increases in power and torque, efficient matching of the engine and hydraulic system, small power loss and consistently high output;

• The power exertion unit achieves a rapid pressure increase with one click, and the excavator power is instantly increased, which is especially suitable for excavation on hard foundations.

 

 

• Offering arm-to-arm mode options, both strong and comfortable modes can be chosen according to the load stress on the front-end work unit, helping to improve operation efficiency, improve operation comfort and extend the service life of the components.

 

 

• Multiple power modes meet different energy efficiency requirements.

• The attached replacement support system, through a multifunctional monitor, can easily enable valve switching and flow setting, which improves operation efficiency.

 

 

2. Using cutting-edge technology to achieve efficient fuel savings

 

• The high-voltage co-rail system is used, and electronic control is used to achieve precise control of the injection time and amount of injection, improving fuel efficiency.

• The fuel sprayer has been comprehensively upgraded, increasing the maximum injection pressure and reducing the diameter of the jet, which double helps improve the fuel vaporization effect and improve fuel efficiency.

• Variable Section (VGS) turbocharger is adopted to ensure that the engine can be steadily pressurized regardless of low speed or high speed, thereby improving fuel efficiency;

• The new hydraulic system increases pump capacity and improves pump efficiency, which in turn improves fuel efficiency.

 

 

Comfortable operation, easy and safe

 

 

1. A comfortable driving experience

 

• The driver's room has spacious space and excellent views;

• The monitor switch, air conditioner switch, etc. are centrally set in the right console, making the operation easier;

• Standard air suspension seats, with seat heating function, greatly improve comfort;

• Equipped with a lightweight steering handle, it does not easily fatigue even during long hours of operation;

• Equipped with bluetooth recorder, USB charging port, so that the operation is enjoyable;

• The driver's room is supported by a hydraulic elastic seat that absorbs shock and vibration;

• The pressurized cab effectively avoids the entry of dust and particles.

 

 

2. Safe and reliable driver's room

 

• Using CRES (central pillar reinforced) driving room, the top shield meets the OPG II standard, plus the lower protective net of the front window, multiple protection to make the operation more secure;

• The automatic lock function of the operating handle can effectively prevent the occurrence of machine error in an unconscious state;

 

• In the event of an unexpected engine failure, the engine can be quickly shut down by the emergency shutdown switch;

• Equipped with a power cutoff switch, it can prevent battery loss and line failure during downtime or long-term use;

• The top of the driving room, both sides of the boom and the platform are equipped with LED working lights, making night work safer.

 

 

3. Multifunction supervisory control system

 

• It is composed of a large color LCD screen, a controller and a rear camera. The menu is selected by a multi-function controller on the control panel.

• Supports attachments replacement systems and a crushing hammer operating hourtable.

• Support for multilingual languages.

• Regenerative monitoring and rear view monitoring have been added.

 

Easy maintenance

 

 

• New large armrests provide safer protection for everyday maintenance;

• The radiator has a new and larger design, and the radiator door has a brand new design, which improves maintenance efficiency;

 

 

• The main fuel filter and the pre-filter adopt double layer 2μm and double layer 5.5μm filter elements respectively, which have high filtration accuracy and prolong the maintenance period.

• Hydraulic fans with a reverse function not only improve the heat dissipation performance, but also facilitate the cleaning of radiators, oil coolers, and medium chillers.

• Use a closed expansion tank, which does not require frequent injection of coolant;

• Use a maintenance-free battery and a maintain-free air prefilter.

 

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