ID：1825697

• Brand: Hitachi
  
• Model: EX120-5Z
  
• Year of Manufacture: 2014
  
• Hours: 14,600 hours
  
• Location: Yuxi, Yunnan Province
  

• Operating weight: 12 tons
  
• Power system: Conventional diesel engine
  
• Manufacturer: Joint venture/imported components
  
• Bucket type: Standard backhoe
  

                           

ID：1827030

• Brand: Volvo
  
• Model: EC360BLC Prime (3.2m Arm)
  
• Year of Manufacture: 2018
  
• Hours: 9,000 hours
  
• Location: Yongzhou, Hunan Province
  

• Engine Model: Volvo D12D
  
• Rated Power: 198 kW at 1700 rpm
  
• Cylinders: 6
  
• Displacement: 12.1 L
  
• Cooling: Water-cooled
  
• Max Torque: 1475 N·m at 1275 rpm
  
• Turbocharged for optimized performance
  

• Swing Speed: 9.7 rpm
  
• Travel Speed: 3.3 / 4.5 km/h
  
• Ground Pressure: 66.2 kPa
  
• Bucket Digging Force: 215 kN (standard) / 236 kN (power boost)
  
• Arm Digging Force: 161 kN (standard) / 176 kN (power boost)
  
• Gradeability: 70%
  

• Boom: 2 cylinders, 160 mm diameter × 1530 mm stroke
  
• Arm: 1 cylinder, 175 mm diameter × 1700 mm stroke
  
• Bucket: 1 cylinder, 145 mm diameter × 1285 mm stroke
  
• Main Pump Max Flow: 280 × 2 + 25.5 L/min
  
• Working Pressure: 31.4 / 34.3 MPa
  

• Fuel Tank: 620 L
  
• Hydraulic Tank: 220 L
  
• Engine Oil Change: 42 L
  
• Coolant: 60 L
  
• Hydraulic System: 515 L
  

• Transport Length: 11020 mm
  
• Transport Width: 3340 mm
  
• Transport Height: 3350 mm
  
• Minimum Ground Clearance: 500 mm
  
• Track Length: 5180 mm
  
• Track Width: 600 mm
  
• Track Gauge: 2740 mm
  
• Rear Swing Radius: 3500 mm
  
• Front Boom Swing Radius: 4340 mm
  

• Max Digging Radius: 11130 mm
  
• Max Digging Depth: 7450 mm
  
• Max Digging Height: 10340 mm
  
• Max Dumping Height: 7290 mm
  
• Max Vertical Digging Depth: 5790 mm
  
• Max Reach on Ground: 10920 mm
  
• Max Effective Digging Depth: 7270 mm
  

• Ideal for heavy construction, mining, and civil engineering projects.
  
• Regular hydraulic oil checks recommended to maintain peak efficiency.
  
• Use fuel meeting Volvo specifications to optimize engine life.
  
• Operators should undergo training to maximize precision and minimize wear.
  

                               

ID：1827015

• Brand: Doosan
  
• Model: DX60WN ECO
  
• Year of Manufacture: 2021
  
• Hours: 7,700 hours
  
• Location: Nanjing, Jiangsu Province
  

• Brand: Doosan
  
• Model: DX60WN ECO
  
• Year: 2021
  
• Operating Hours: 7,700 hours
  
• Location: Jiangsu - Nanjing
  
• Operating Weight: 5,500 kg
  
• Operating System: Conventional power
  
• Bucket Type: Backhoe
  

• Rated Power: 39 kW at rated engine speed
  
• Manufacturer: Joint venture / Imported
  

• Operating Weight: 5,500 kg supports stability in various terrains
  
• Maximum Digging Force: Adequate for compact urban applications
  
• Mobility: Wheeled undercarriage enables faster movement between sites without the need for transport trailers
  

                               

ID：1827001

• Brand: Komatsu
  
• Model: PC70-8
  
• Year of Manufacture: 2011
  
• Hours: 11,000 hours
  
• Location: Xinxiang, Henan Province
  

• Brand: Komatsu
  
• Model: PC70-8
  
• Year of Manufacture: 2011
  
• Operating Hours: 11,000
  
• Location: Henan - Xinxiang City
  

• Operating Weight: 6,500 kg
  
• Bucket Capacity: 0.32-0.39 m³
  
• Boom Length: 3,710 mm
  
• Arm Length: 1,650 mm
  
• Engine Type: Conventional
  
• Bucket Type: Backhoe
  

• Engine Model: Komatsu SAA4D95LE-5
  
• Rated Power: 48.5 kW / 1,950 rpm
  
• Cooling Method: Water-cooled
  
• Cylinders: 4
  
• Bore × Stroke: 95 × 115 mm
  
• Displacement: 3.26 L
  
• Turbocharged with intercooler
  

• Ground Pressure: 30.2 KPa
  
• Slew Speed: 11 rpm
  
• Bucket Digging Force: 54.8 kN
  
• Arm Digging Force: 38.2 kN
  
• Maximum Traction Force: 56.4 kN
  
• Travel Speed: 4.5 / 2.8 km/h
  

• Main Pump Flow Rate: 172 L/min
  
• Travel Hydraulic Pressure: 24.5 MPa
  
• Swing Hydraulic Pressure: 21.1 MPa
  
• Main Pump Type: Variable Displacement Piston Pump
  
• Working Hydraulic Pressure: 24.5 MPa
  
• Pilot Pressure: 2.9 MPa
  
• Bucket Cylinder: 1 × 90 × 710 mm
  
• Arm Cylinder: 1 × 100 × 865 mm
  
• Boom Cylinder: 1 × 115 × 840 mm
  

• Fuel Tank: 130 L
  
• Hydraulic Oil Tank: 95 L
  
• Engine Oil Replacement: 12.5 L
  

• Transport Length: 6,080 mm
  
• Transport Width: 2,225 mm
  
• Transport Height: 2,620 mm
  
• Counterweight Ground Clearance: 750 mm
  
• Minimum Ground Clearance: 350 mm
  
• Rear Swing Radius: 1,750 mm
  
• Track Length: 2,765 mm
  
• Track Width: 450 mm
  
• Track Gauge: 1,700 mm
  
• Total Track Width: 2,150 mm
  
• Track Ground Contact Length: 2,130 mm
  
• Idler Wheels per Side: 1
  
• Carrier Rollers per Side: 5
  
• Track Shoes per Side: 38
  

• Maximum Digging Radius: 6,360 mm
  
• Maximum Digging Depth: 4,100 mm
  
• Maximum Digging Height: 7,150 mm
  
• Maximum Dumping Height: 5,015 mm
  
• Maximum Vertical Digging Depth: 3,505 mm
  
• Maximum Working Area Digging Radius: 6,220 mm
  

                                       


ID：1827002

• Brand: John Deere
  
• Model: E210LC
  
• Year of Manufacture: 2019
  
• Hours: 4,800 hours
  
• Location: Xinxiang, Henan Province
  

• Operating weight: 22,000–23,900 kg
  
• Bucket capacity: 1.0–1.2 m³
  
• Boom length: 5680 mm
  
• Arm length: 2900 mm
  
• Engine: John Deere PowerTech Plus 4045, 117 kW at 2000 rpm
  
• Displacement: 4.5 liters, turbocharged with air-to-air intercooler
  
• Hydraulic system: dual variable displacement electrohydraulic axial piston pumps, maximum flow 224×2 L/min
  
• Travel speed: 3.2–5.5 km/h
  
• Swing speed: 12.5 rpm
  
• Bucket digging force: 150 kN
  
• Arm digging force: 111 kN
  
• Fuel tank: 390 L
  

                               

ID：1827005

• Brand: Hyundai
  
• Model: R60-7
  
• Year of Manufacture: 2010
  
• Hours: 9,000 hours
  
• Location: Wuxi, Jiangsu Province
  

• Operating weight: 5850 kg
  
• Bucket capacity: 0.06–0.21 m³
  
• Power source: Conventional diesel engine
  
• Manufacturer origin: Joint venture/imported
  
• Bucket type: Backhoe
  

• Engine model: Yanmar 4TNV94L
  
• Rated power: 40 kW at 2200 rpm
  
• Cooling method: Water-cooled
  
• Cylinders: 4
  

• Swing speed: 9.6 rpm
  
• Gradeability: 70% (35°)
  
• Bucket digging force: 37.7 kN
  
• Arm digging force: 28.4 kN
  
• Travel speed: 2.2–4.0 km/h
  

• Hydraulic breaker lines: Not standard
  
• Main pump type: Two variable displacement axial piston pumps plus gear pump
  

• Fuel tank: 120 L
  
• Hydraulic oil tank: 70 L
  

• Transport length: 5900 mm
  
• Transport width: 1920 mm
  
• Transport height: 2550 mm
  
• Ground clearance: 380 mm
  
• Tail swing radius: 1650 mm
  
• Track gauge: 1520 mm
  
• Track shoe width: 400 mm
  
• Overall track width: 1920 mm
  
• Ground contact length: 1990 mm
  

• Maximum digging radius: 6150 mm
  
• Maximum digging depth: 3820 mm
  
• Maximum digging height: 5780 mm
  
• Maximum dumping height: 4050 mm
  
• Maximum vertical digging depth: 3200 mm
  
• Blade size: 1920 × 350 mm
  
• Maximum digging radius at ground level: 6010 mm
  
• Maximum effective digging depth: 3420 mm
  

• Regularly service the Yanmar engine to extend operational life beyond 12,000 hours.
  
• Ensure the hydraulic system is checked every 500 hours to prevent efficiency loss.
  
• Consider upgrading to reinforced buckets for quarry or demolition work.
  
• Operators should be trained on slope work, as improper use reduces track and undercarriage lifespan.
  

                               

ID：1826927

• Brand: Komatsu
  
• Model: PC360-7
  
• Year of Manufacture: 2009
  
• Hours: 11,000 hours
  
• Location: Nanning, Guangxi Province
  

• Operating weight: 33,000 kg
  
• Bucket capacity: 1.6 m³
  
• Engine: Komatsu SAA6D114E, 6-cylinder turbocharged diesel
  
• Rated power: 180 kW at 1900 rpm
  
• Displacement: 8.27 L
  
• Hydraulic pump flow: 535 L/min
  
• Bucket digging force: 227 kN
  
• Arm digging force: 171 kN
  
• Travel speed: 3.2 / 4.5 / 5.5 km/h
  
• Maximum digging depth: 7380 mm
  
• Maximum digging reach: 11100 mm
  
• Fuel tank capacity: 605 L
  

• Inspect the undercarriage, as components like rollers and sprockets typically show wear at high hours.
  
• Verify hydraulic performance, ensuring the pumps maintain pressure above 37 MPa.
  
• Check engine compression and turbocharger condition, since the SAA6D114E engine is robust but sensitive to fuel quality.
  
• Review maintenance logs, especially for oil and filter changes.
  
• Consider availability of attachments, as the 1.6 m³ bucket can be replaced with specialized tools like rippers or rock buckets depending on project needs.
  

                               

ID：1826975

• Brand: Caterpillar
  
• Model: CAT®305.5E2 Mini Hydraulic
  
• Year of Manufacture: 2020
  
• Hours: 5000 hours
  
• Location: Ji'an, Jiangxi Province
  

• Operating weight: 5400 kg
  
• Bucket capacity: 0.22 m³
  
• Bucket width: 766 mm
  
• Engine: Cat C2.4 DI, displacement 2.4 L
  
• Power: 34.1 kW
  
• Boom length: 3200 mm
  
• Stick length: 1500 mm
  
• Backhoe bucket configuration
  

• Swing speed: 10.5 rpm
  
• Travel speed: 4.3/2.8 km/h (high/low)
  
• Bucket digging force: 35.0 kN
  
• Stick digging force: 27.2 kN
  
• Maximum tractive force: 40.2 kN
  
• Gradeability: 50%
  

• Fuel tank: 78 L
  
• Hydraulic tank: 58 L
  
• Engine oil: 9.5 L
  
• Cooling system: 9.8 L
  
• Hydraulic system total: 85 L
  

• Length: 5765 mm
  
• Width: 1950 mm
  
• Height: 2540 mm
  
• Ground clearance: 628 mm
  
• Tail swing radius: 1580 mm
  
• Track gauge: 1550 mm
  
• Track shoe width: 400 mm
  

• Maximum digging radius: 5955 mm
  
• Maximum digging depth: 3720 mm
  
• Maximum digging height: 5460 mm
  
• Maximum dumping height: 3835 mm
  
• Vertical digging depth: 2210 mm
  
• Dozer blade lift/depth: 365/480 mm
  
• Blade width × height: 1950 × 360 mm
  

• Inspect hydraulic filters regularly and replace according to schedule.
  
• Monitor engine performance and change oil every 250 hours.
  
• Keep the cooling system clean to prevent overheating.
  
• Check track tension frequently to avoid premature wear.
  

                               

ID：1826970

• Brand: SANY Heavy Industry
  
• Model: SY75C
  
• Year of Manufacture: 2022
  
• Hours: 4800 hours
  
• Location: Hefei, Anhui Province
  

• Operating weight: 7.28 tons
  
• Bucket capacity: 0.12–0.32 m³
  
• Engine: Isuzu AU-4LE2X, 4-cylinder, 2.179 L displacement
  
• Rated power: 43 kW at 2200 rpm
  
• Maximum torque: 200 Nm at 1600 rpm
  
• Hydraulic system capacity: 120 L
  
• Fuel tank capacity: 150 L
  

• Ground pressure: 33 Kpa, suitable for soft soil conditions
  
• Swing speed: 11.5 rpm
  
• Travel speed: 4.4 / 2.4 km/h (high/low)
  
• Gradeability: 70% (35° incline)
  
• Bucket digging force: 56 kN
  
• Arm digging force: 38 kN
  

• Transport length: 6120 mm
  
• Width: 2220 mm
  
• Height: 2720 mm
  
• Ground clearance: 380 mm
  
• Tail swing radius: 1800 mm
  
• Track gauge: 1750 mm
  
• Track shoe width: 450 mm
  

• Maximum digging radius: 6240 mm
  
• Maximum digging depth: 4020 mm
  
• Maximum dumping height: 5155 mm
  
• Maximum digging height: 7060 mm
  
• Vertical digging depth: 3290 mm
  
• Dozer blade lift/depth: 350/360 mm
  

• Regularly check hydraulic oil and filters to maintain smooth operation.
  
• Replace engine oil every 250 hours to ensure longevity.
  
• Inspect track tension to prevent excessive wear.
  
• Monitor bucket teeth condition to optimize digging performance.
  

The Case 590 is a versatile and reliable tractor-loader that has been used in a wide variety of applications. Known for its power and durability, the Case 590 is a popular choice for construction, landscaping, and agricultural projects. However, when considering purchasing a used Case 590, there are several important factors to keep in mind to ensure you’re making an informed decision.
Introduction to the Case 590
Case Construction Equipment is a brand that has been around for over 175 years, providing high-quality machines for various industries. The Case 590 series, which includes models such as the Case 590 Super M, 590L, and others, is part of their popular tractor-loader line. These machines are often used in heavy-duty tasks like digging, lifting, and material handling. The 590 models are known for their strong hydraulic systems, user-friendly controls, and ability to handle a range of attachments, making them a favorite among operators.
The Case 590 is a well-rounded machine, offering a combination of backhoe and loader functionalities. This makes it a great option for individuals or businesses that need a machine capable of performing multiple tasks without needing separate equipment. When buying used, it's important to evaluate both the mechanical integrity and the operational condition of the machine.
Why Choose a Used Case 590?
Used construction equipment, especially models like the Case 590, provides a cost-effective solution for many businesses. Buying used offers several advantages, including:

1. Lower Initial Investment: Purchasing a used Case 590 is typically much cheaper than buying new, allowing operators to save on upfront costs.
   
2. Proven Durability: Case equipment is known for its longevity. A well-maintained used Case 590 can still deliver excellent performance, even with many hours of use.
   
3. Depreciation Benefits: New equipment depreciates faster, while used machinery has already taken the largest depreciation hit, providing better value for money.
   
4. Availability of Parts and Support: Case has a strong reputation for after-sales service and parts availability. This makes maintaining a used Case 590 more convenient and affordable.
   

1. Age and Hours: The number of hours on the engine is a crucial factor in evaluating the condition of the machine. The typical lifespan of a Case 590 is between 6,000 to 10,000 hours, depending on usage and maintenance. Machines with fewer hours may be more expensive, but they tend to have a longer remaining lifespan.
   
2. Engine Condition: The engine is the heart of the tractor-loader, and it’s vital to ensure that it runs smoothly. Check for signs of excessive smoke, strange noises, or oil leaks. If the engine has been rebuilt or replaced, verify the quality of the work done.
   
3. Hydraulic System: Case 590 models are equipped with powerful hydraulic systems, which are essential for digging, lifting, and other tasks. Ensure that the hydraulic cylinders, hoses, and pumps are functioning properly. A poorly performing hydraulic system can lead to expensive repairs.
   
4. Transmission and Gearbox: The transmission should shift smoothly without any hesitation. Listen for any grinding noises, especially when changing gears. Check the oil levels in the transmission and ensure that there is no contamination or burnt smell, which could indicate damage.
   
5. Undercarriage and Tires: Check the condition of the tires or tracks (depending on the model). Worn-out tires will affect the performance of the loader and may require replacement soon. Inspect the undercarriage for any significant wear or damage, as repairs in this area can be costly.
   
6. Bucket and Attachments: The bucket and other attachments (e.g., forks, grapple) should be checked for damage or excessive wear. Make sure the loader arms, pins, and hydraulic connections are intact and functioning correctly.
   
7. Maintenance Records: A well-maintained used machine will save you from potential headaches down the line. Ask the seller for maintenance records and repair history to get a clear picture of how the machine was taken care of.
   
8. Operational Test: Before purchasing a used Case 590, always take the machine for a test run. Pay attention to how the machine operates, including the loader's lifting speed, backhoe performance, and overall responsiveness of the controls.
   

1. Electrical Issues: Wiring problems can develop over time, especially in older machines. Look for signs of faulty wiring, blown fuses, or malfunctioning electrical components.
   
2. Overheating: The cooling system should be inspected regularly to prevent overheating, especially if the machine has been working in hot environments. Clogged radiators or low coolant levels can cause the engine to overheat, leading to severe damage.
   
3. Hydraulic Leaks: The hydraulic system, if not regularly maintained, can develop leaks over time. Check for any oil drips around hydraulic hoses, cylinders, and pumps.
   
4. Backhoe Arm Damage: The backhoe arm and bucket pins are subjected to heavy stress. If not properly maintained, the pins can wear out, affecting the machine's digging ability.
   
5. Transmission Problems: While rare, some users report issues with the transmission or gearbox slipping. Ensure that the transmission fluid is clean and at the correct level.
   

1. Regular Oil Changes: Changing the engine oil and hydraulic fluid at regular intervals is essential for maintaining engine performance and preventing wear.
   
2. Clean the Cooling System: Make sure the radiator is clean and free of debris. Regularly check coolant levels and ensure that there are no leaks in the system.
   
3. Grease the Joints: The loader and backhoe joints should be greased regularly to reduce friction and prevent wear on the pins and bushings.
   
4. Inspect Hydraulic Hoses: Check hydraulic hoses for any wear or damage and replace them when necessary to prevent hydraulic fluid leaks.
   
5. Monitor Tire Pressure: Low tire pressure can reduce the performance of the loader and cause unnecessary wear. Check tire pressure regularly and replace worn tires promptly.
   
6. Keep the Machine Clean: Regularly cleaning the machine, especially after a heavy day of work, helps to prevent dirt and debris from causing damage to the engine and other components.