1、 Basic specifications of the whole machine (306 CR National IV New Mainstream)
Table
project parameters
Operating weight of the whole machine (cab+steel tracks+standard bucket) 7150 kg (7.15 tons) Cat
Standard earthwork bucket capacity of 0.25 m ³; Optional 0.20~0.32 m ³ narrow bucket/rock bucket H-CPC
Standard boom length 3680 mm
Standard stick length 1680 mm (optional extended stick 1920mm)
The dimensions for transportation of the entire machine are 6120 mm in length, 1980 mm in width, and 2545 mm in height
Track total width/gauge 1980 mm; standard track plate 450mm steel track, optional rubber block Cat
Bulldozer blade width 1980 mm, adjustable for lifting and floating leveling
Tail turning radius 1475 mm short tail CR design, no scratching on narrow construction sites Cat
Minimum ground clearance 370 mm
Fuel tank capacity 105 L
The hydraulic oil volume of the whole machine is 104 L, and the hydraulic oil tank is 70 LH-CPC
Origin: Japan Original Machine Imported
2、 Excavation scope (standard forearm, unit: mm)
Table
Performance item values
Maximum excavation depth (standard pole) 3900; Extension rod 4110Cat
Maximum excavation radius on the ground 6100
Maximum excavation height 7260
Maximum unloading height 5155Cat
Vertical maximum excavation depth 3280
Bucket excavation force 50.2 kN
Excavating force of boom 36.5 kN
3、 Walking and turning performance
Table
project parameters
Rotation speed 10.2 r/min
Rotation torque 15.1 kN · m
Walking at low speed/high speed 3.1 km/h/5.0 km/h H-CPC
Maximum traction force 51 kN
Climbing ability 30 ° (50% slope)
Ground pressure ratio (steel track) 34 kPa
4、 Engine system (306 CR)
Model: Cat C2.4 DI Turbo Caterpillar Original Four Cylinder Turbocharged Diesel Engine Cat
Rated net power: 41.7 kW (56 horsepower)/2400rpm
Displacement: 2.43 L, water-cooled direct injection
Emissions: National IV, no DPF forced regeneration, automatic idle, automatic shutdown energy-saving
Advantages: Low noise, high torque, no power attenuation at high altitudes, high versatility of accessories
Old 306E2 engine (National III)
Cat C2.4 turbocharged, with a net power of 34.7kW and higher fuel consumption than the new CR
5、 Load sensing hydraulic system
Table
Hydraulic parameter specifications
Main pump form variable plunger load sensing main pump
2400rpm total flow rate 152 L/min
Main working circuit pressure 24.5 MPa
Walking circuit pressure 25.0 MPa
Rotary circuit pressure 21.6 MPaH-CPC
Auxiliary crushing dual flow output: first stage 130L/min, second stage 65L/min
Three stage power mode: economy/standard/heavy load, with smooth and precise composite movements
6、 Chassis walking mechanism
Single side supporting wheel: 5 supporting wheels+1 upper sprocket wheel H-CPC
Sealed self-lubricating track pin, wear-resistant and has a longer maintenance cycle
Butter integrated spring tensioning, convenient for adjusting track tension
The chassis is fully covered with protective plates to protect the oil pipes and turntable from being hit by debris
7、 Cab configuration (ROPS/FOPS certification)
Fully enclosed pressurized cab, equipped with integrated cooling and heating air conditioning as standard
Air suspension shock-absorbing adjustable seats, extendable seat belts
Full LCD multifunctional instrument: fuel consumption, water temperature, oil pressure, fault self diagnosis, maintenance reminder
Pilot operation handle, supporting single handle walking mode switching
The front windshield can be flipped up to open, with panoramic low-noise glass and an indoor noise level of 72dB (A) H-CPC
Standard 12V charging port, storage compartment, and delayed work light
8、 Model differentiation: 306 CR/306.5/306E2
306 CR (New National IV)
Self weight of 7.15 tons, C2.4 high-power engine, shorter tail with smaller turning radius, larger hydraulic flow, stronger lifting ability, new main model.
306.5 (China III)
Self weight of 6.4 tons, small counterweight, slightly shallow excavation depth, power of 34.9 kW, gradually discontinued.
306E2 (old models of China II/III)
No short tail, large turning radius at the rear, low engine power, high fuel consumption, most of which are second-hand phones on the market.
9、 Core advantages
CR short tail fuselage has obvious advantages in residential areas, basements, indoor demolition, and narrow tunnel conditions;
Caterpillar original turbo power+load sensing hydraulic, with soft action, precise micro control, and strong adaptability for crushing/grabbing wood;
Japanese original machine, durable with low failure rate and high resale value;
The maintenance cycle is long, and all daily inspections can be completed on the ground, making maintenance convenient.