YUANJIAN MACHINERY · HEFEI, CHINA

Used CAT 312B
Crawler Excavator for Sale

Product photos · Inspection before purchase · Export support

MACHINE REFERENCE PRICE

USD 18,000.00 / set

Confirm availability

Not a confirmed FOB or CIF total. Exact unit, preparation and export terms are confirmed in writing.

Listed year
2021
Meter hours
2514 h
Condition
Used
Machine type
Used Crawler Excavator
Inspection
On request
Stock yard
Hefei, China

Confirm the year, meter reading, serial and fitted configuration for the selected machine. Other units of this model are quoted separately. Meter hours do not independently establish total lifetime use.

CAT Excavator Technical Resources

Browse the catalogue and previews. Ask YUANJIAN for full documents matched to your machine's model, serial number and configuration.

BEFORE YOU BUY

Check the machine, not just the paint

Verify YUANJIAN →

YUANJIAN MACHINERY INTERNATIONAL TRADING LIMITED is a used excavator and construction machinery supplier in China. Discuss the actual condition of this used Caterpillar (CAT) 312B crawler excavator, your application and the agreed preparation scope before payment. These are requests for evidence, not completed inspection results.

Engine & working systems

Request cold start, smoke and dashboard footage, followed by hot hydraulic operation: boom, arm, bucket, travel and swing.

Fuel use & working test →

Undercarriage & structure

Review the fitted travel system, pins, welds and hydraulic leakage. For tracked machines, check track shoes, rollers, sprockets and chain wear.

Swing-bearing checks →

Original paint or refurbishment

Confirm the offered condition and any cosmetic or mechanical work. New paint alone does not prove a rebuild or accident-free history.

Compare purchase options →

Typical work: truck loading, quarry support, and contractor fleet work; projects that require stable crawler undercarriage performance; earthmoving, trenching, and foundation excavation; road construction, drainage, and site preparation. Match the fitted configuration and actual condition to your job.

Model-specific inspection points
  • track shoes, rollers, sprocket, idler, chain, and undercarriage wear
  • bucket, pins, hoses, cylinders, visible leakage points, and cab condition
  • engine start, idle sound, smoke condition, and dashboard display
  • hydraulic pump response and boom, arm, bucket, and swing movement

CONFIGURATION

CAT 312B specifications

Listing reference values are not measurements of this used unit. Confirm model, engine plate, fitted equipment and configuration against the serial number.

Listed serial
CAT312B01M3436098

Listed Price
USD $18,000
Full Model Name
CAT 312B Hydraulic Excavator
Engine Model
Cat 3064T 4-Cylinder Turbo Diesel
Net Flywheel Power (ISO 9249)
63 kW / 84 hp @ 1900 rpm
Full listing reference specifications
Gross Engine Power
68 kW / 91 hp
Displacement
4.24 L (259 cu in)
Bore × Stroke
102 mm × 130 mm
Emission Standard
EU Stage II
Standard Operating Weight (500mm steel track)
13010 kg
Standard Bucket Capacity
0.46 m³
Dual Main Pump Total Flow
240 L/min (120 L/min × 2 pumps)
Implement Relief Pressure
299 bar (29900 kPa)
Travel System Pressure
343 bar (34300 kPa)
Swing Circuit Pressure
230.5 bar (23050 kPa)
Pilot Pump Flow / Pressure
18 L/min / 39 bar
Bucket Digging Force
92 kN
Standard Stick Digging Force
60 kN
Max Digging Depth (4.3m standard boom)
5850 mm
Max Vertical Wall Dig Depth
4430 mm
Max Ground Reach
8400 mm
Max Dump Height
5860 mm
Swing Speed
12.3 rpm
Swing Torque
30.4 kN·m
Max Travel Speed
5.5 km/h
Max Low-Speed Drawbar Pull
104 kN
Fuel Tank Capacity
250 L
Total Hydraulic System Volume
162 L
Standard Track Shoe Width
500 mm Steel Triple Grouser
Track Gauge
1990 mm
Rear Swing Radius
2130 mm
Min Ground Clearance
440 mm
Max Gradeability
30°
Operator Station
ROPS Sound Insulated Enclosed Cab

Operating weight is not a verified packed shipping weight. Obtain actual transport dimensions and weight before booking.

SUPPLIER EVIDENCE

Workshop records & documented exports

Verify YUANJIAN →
Workshop preparation example

COMPANY RECORD

Workshop preparation example

A company record from a separate machine or customer order. It is not an inspection result or delivery proof for this inventory unit.

View the record →
LiuGong 856 shipped to Kenya

COMPANY RECORD

LiuGong 856 shipped to Kenya

A company record from a separate machine or customer order. It is not an inspection result or delivery proof for this inventory unit.

View the record →

EXPORT QUOTATION

From machine selection to shipment

Send your destination port, job and preferred condition. Confirm availability for the selected unit, inspection and preparation, then agree an itemized quotation.

Transport method, packed dimensions, freight, insurance, destination charges and import responsibilities are confirmed for each order. No fixed arrival date is promised on this page.

FOB quotation & shipping checklist →
Can I inspect this machine in Hefei, Anhui?

Yes. We can coordinate an in-person inspection, video call, or extra photos before purchase.

Can you provide a working video before payment?

Yes. We can provide a walk-around video, operating video, and photos of key condition points.

Can you help with export and shipping?

Yes. We support loading, export documents, and freight quotation to your destination.

Is this an original-paint or refurbished machine?

Confirm the final condition and preparation scope for the selected unit. Ask what cosmetic and mechanical work was performed, what evidence is available and what remains outside the agreed scope.

Ask about this CAT 312B

Destination port · Application · Preferred condition

Request evidence & quote
Machine referenceUSD 18,000.00
WhatsApp quote
Machine photo 1
CAT 312B Used Crawler Excavator product photograph