Used CAT 312D2GC Crawler Excavator Heavy Equipment for Construction Projects

Product Introduction

Get verified price quotes on our certified used CAT 312D2GC crawler excavator stock. Features original Cat 3054C engine, 0.53m³ bucket, custom attachments, and fast global shipping.

Product Information

Type:

CAT 312D2GC

Operating weight:

12500kg

Bucket capacity:

0.53 cubic meters

Gradeability:

35°/70°

Engine model:

Cat 3054C

Fuel tank:

250L

Cooling method:

Water-cooling

Procuring a heavy-duty used CAT 312D2GC crawler excavator provides general contractors, civil engineering firms, and earthmoving operators with a highly reliable machine for demanding job site operations. Weighing 12,500 kg, this mid-sized commercial excavator is widely recognized throughout the heavy equipment industry for combining steady digging breakout force with optimized operational fuel consumption. Sourcing a thoroughly inspected pre-owned unit gives overseas procurement teams access to high-tier operational efficiency while significantly optimizing machinery capital expenditure. Our specialized yard conducts multi-point technical evaluations, hydraulic pressure load testing, and structural reconditioning on every unit to guarantee immediate deployment upon job site arrival.

Advanced Hydraulic Engineering and Structural Capabilities

Every second-hand earthmoving unit in our equipment inventory undergoes extensive mechanical verification by certified heavy machinery technicians to ensure strict compliance with factory working standards.

Caterpillar 3054C High-Torque Powertrain

At the core of this 12.5-ton crawler excavator is the original Caterpillar 3054C turbocharged diesel engine. Featuring a robust 4-cylinder, water-cooled configuration with a 4.4L displacement, this engine generates a rated power output of 59 kW. Designed specifically for long-term durability under continuous duty cycles, the powertrain delivers high torque output at low engine operating speeds. This design effectively reduces hourly fuel burn while maintaining consistent hydraulic pump pressure across heavy-duty digging applications.

Cat Main Pump and Distribution Valve System

The hydraulic architecture integrates genuine Cat main pumps and distribution valves, ensuring exceptionally smooth multi-function coordination during complex excavating cycles. The precision-engineered system produces a bucket digging force of 95 kN and a stick digging force of 65 kN. Paired with a standard 0.53 m³ heavy-duty reinforced bucket, the machine delivers rapid trenching, material loading, and backfilling capabilities across hard soil, clay, and rocky ground conditions.

Reinforced Undercarriage and Track Assembly

Built on a heavy-duty steel crawler undercarriage, the machine features a variable walking speed range of 3.2 to 5.1 km/h and a rapid rotation speed of 11.2 rpm for optimized cycle times. With a 35°/70° gradeability rating and a generous 250L capacity fuel tank, this crawler excavator maintains maximum traction, stability, and operational uptime on steep slopes, muddy earthworks, and unpaved aggregate yards.

Verified Factory Technical Specifications

The specifications listed in the table below reflect exact mechanical parameters verified during our physical equipment intake audit prior to listing.

Parameter Category	Technical Specification Data
Machine Model	CAT 312D2GC
Operating Weight	12,500 kg
Bucket Capacity	0.53 m³
Boom Length	4,650 mm
Stick Length	2,500 mm
Engine Model	Cat 3054C
Engine Displacement	4.4 L
Number of Cylinders	4
Cooling Method	Water-cooling
Rated Power Output	59 kW
Hydraulic Pump Brand	Cat Original
Distribution Valve Brand	Cat Original
Bucket Digging Force	95 kN
Stick Digging Force	65 kN
Maximum Excavation Radius (Parking)	8,180 mm
Maximum Excavation Depth	5,540 mm
Maximum Vertical Excavation Depth	4,910 mm
Maximum Excavation Height	8,490 mm
Maximum Unloading Height	6,100 mm
Rotation Speed	11.2 rpm
Walking Speed	3.2 – 5.1 km/h
Gradeability	35° / 70°
Fuel Tank Capacity	250 L
Overall Transport Length	7,610 mm
Overall Transport Width	2,490 mm
Overall Transport Height	2,830 mm

Primary Industrial Application Scenarios

Civil Infrastructure and Foundation Trenching

With a maximum excavation depth of 5,540 mm and a maximum vertical digging depth of 4,910 mm, this unit excels in deep foundation footing, basement excavation, and municipal drainage pipe installations. Precise pilot joystick controls allow operators to trim trench walls cleanly, reducing manual labor and post-excavation site cleanup work.

Mass Earthmoving and Heavy Truck Loading

Featuring a maximum excavation height of 8,490 mm and an unloading height of 6,100 mm, the equipment easily clears high-sided commercial haul trucks and dump trailers. The 0.53 m³ bucket capacity paired with 11.2 rpm swing rotation speeds ensures rapid truck turnaround times on large-scale commercial earthmoving sites.

Road Construction and Quarrying Operations

The 95 kN bucket digging force provides necessary breakout power when working in compacted subgrade, crushed stone, and road bed demolition projects. The heavy-duty track assembly absorbs continuous shock loads when operating hydraulic breakers, rippers, or working along broken concrete pavement cuts.

Customization, Maintenance, and Logistics Support

We offer comprehensive pre-delivery machine preparation to match your specific job site needs and regional customs import documentation rules.

Hydraulic System Recalibration: Certified technicians perform full system pressure checks, calibrate distribution valve spools, and renew main hydraulic seals to ensure original cycle speeds and prevent pressure drop under load.
Engine Servicing and Preventive Care: Engine oil, primary fuel filters, air filters, and cooling fluid are renewed, accompanied by complete valve adjustment and fluid sample testing to guarantee long-term operational reliability.
Auxiliary Line Retrofitting: Optional dual-way auxiliary hydraulic piping can be installed on the boom and stick to operate hydraulic breakers, rock rippers, or quick-attach couplers.
Export Logistics Coordination: Machines are professionally washed, secured, and loaded for ocean transport using Flat Rack containers or Roll-on/Roll-off (RoRo) vessels, complete with commercial invoices, packing lists, and original bill of lading documentation.

Frequently Asked Questions (FAQ)

How is the hydraulic main pump tested before shipment?

Our certified technicians connect diagnostic pressure gauges directly to the Cat main pumps to test working relief pressures under full hydraulic load conditions. We verify that flow rates and distribution valve spools respond without hydraulic lag or thermal pressure drop.

Can the machine be customized with additional hydraulic piping for attachments?

Yes, our yard technicians can install extra auxiliary hydraulic lines on the boom and arm. This allows the excavator to power hydraulic breakers, concrete pulverizers, or tilt-rotators based on your specific project demands.

What documentation is provided for customs clearance?

Every order includes a full commercial invoice, detailed packing list, original Bill of Lading, and pre-shipment technical inspection report to facilitate smooth customs processing at destination ports.

What are the exact shipping dimensions for freight transport planning?

The overall transport dimensions are 7,610 mm in length, 2,490 mm in width, and 2,830 mm in height, with an operating weight of 12,500 kg. This allows for standard flat-rack containerization or RoRo ocean freight transport.

What payment terms apply to heavy machinery purchases?

We process orders via standard Wire Transfer (T/T). Orders are confirmed upon receipt of a commercial deposit to initiate inspection and freight preparation, with the balance settled upon presentation of shipping documents.