STC3000C8‑8 300 Ton Truck Crane

Maximum Lifting Height: 120.5m
Maximum Lifting Moment: 7355.8kN·m
Maximum Lifting Capacity: 300t

Applicable Working Conditions

Building Construction
Energy Facility Construction
Petrochemical Industry
Municipal Public Utilities

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Product Details

The SANY STC3000C8-8 is a 300-ton ultra-heavy-duty truck crane, the largest-tonnage truck crane from SANY and the first model configurable with a superlift system. It features outstanding lifting performance, an industry-first portable superlift, and efficient heavy-duty relocation, making it ideal for heavy hoisting scenarios including urban construction and providing a new solution for rental operations.

300 Ton Truck Crane

I. Core Technical Parameters

1. Operating Performance

Maximum Lifting Capacity: 300 t
Maximum Lifting Moment: 7355.8 kN·m
Maximum Lifting Height: 120.5 m
Fully Extended Main Boom: 90 m (max. lifting capacity with superlift: 11.6 t)
Jib: 17.5 m (optional 2×9.5 m extension jib available)
Outrigger Span: 8.3 × 7.7 m

2. Travel & Dimensions

Max. Travel Speed: 85 km/h
Max. Gradeability: 45%
Min. Turning Radius: 11.75 m
Overall Dimensions: 17510 × 3000 × 4000 mm
Total Machine Weight (certified): 58000 kg

3. Power Configuration

Dual-engine power system for strong performance in heavy-duty operations:

Upper Car Engine: Cummins QSB5.9, rated power 154 kW @ 2200 rpm, max. torque 820 N·m @ 1600 rpm
Lower Car Engine: Weichai WP12, rated power 338 kW @ 1900 rpm, max. torque 2200 N·m @ 1000–1400 rpm

Counterweight Configuration Diagram & Lifting Height Curve as Follows

300 Ton Truck Crane

4. Counterweight & Relocation

Standard Counterweight: 73.5 t (can be moved back 1 m to enhance lifting performance)
Loaded Relocation Capacity: Can carry 27.5 t counterweight + superlift + 4 outrigger boxes for single-machine relocation

II. Core Product Features

1. Industry-First Portable Superlift for Enhanced Lifting Performance

The superlift weighs only half of conventional models, enabling easy on-board relocation and long-term carriage without frequent disassembly. When paired with the superlift, lifting performance increases by 30%, main boom side bending is reduced by 81%, and deflection is reduced by 60%, significantly improving operational stability.

2. Robust Heavy-Duty Relocation to Solve Industry Pain Points

It can carry the superlift, 27.5 t counterweight, and outrigger pads simultaneously for single-machine relocation, breaking the industry limitation of "carrying counterweight means no superlift" during single-machine transfer. This saves one dedicated transport vehicle, reducing relocation costs and improving construction efficiency.

3. Optimized Counterweight Scheme for Economical Layout & Transport

The 73.5 t repositionable counterweight features a compact design and easy disassembly, balancing lifting performance and transport convenience to adapt to counterweight needs in different construction scenarios and further reduce operating costs.

III. Application Scenarios

Widely suitable for heavy hoisting projects in building construction, energy facility construction, petrochemical industry, and municipal public utilities, especially for high-difficulty hoisting operations in urban environments, meeting the demands of large-tonnage, high-height, and long-radius lifting.

300 Ton Truck Crane

Ⅳ. SANY STC3000C8-8 Truck Crane – Technical Specification Table

Category	Item	Unit	Specification
Upper Power	Engine Model	-	Cummins QSB5.9-CS4 220C
	Max. Engine Power	kW/rpm	154/2200
	Max. Engine Output Torque	N·m/rpm	820/1600
Lower Power	Engine Model	-	Weichai WP12.460E62
	Max. Engine Power	kW/rpm	338/1900
	Max. Engine Output Torque	N·m/rpm	2200/1000–1400
Travel Parameters	Max. Travel Speed	km/h	85
	Min. Turning Radius	m	11.75
	Approach / Departure Angle	°	≥20 / ≥13
	Max. Gradeability	-	45%
	Fuel Consumption (100 km)	L	75
	Max. Rated Total Weight	t	300
Main Performance	Radius of Superstructure Rear Rotation (without counterweight)	m	4.86
	Radius of Superstructure Rear Rotation (with 44.5t counterweight rearward)	m	5.89
	Radius of Superstructure Rear Rotation (with full 73.5t counterweight rearward)	m	6.46
	Max. Lifting Moment (Basic Boom)	kN·m	7355.8
	Max. Lifting Moment (Max. Main Boom)	kN·m	3535.8
	Outrigger Span (Transverse × Longitudinal)	m	8.3(5.5)×7.7
	Boom Length (Basic Boom)	m	15.1
	Boom Length (Max. Main Boom)	m	90
	Boom Length (Max. Main Boom + Fly Jib)	m	101.5
	Boom Length (Max. Main Boom + Extension Jib (optional) + Fly Jib)	m	120.5
Axle Load	Axle Number	-	1 / 2 / 3 / 4 / 5 / Total Weight
	Axle Load / t	t	11 / 11 / 12 / 12 / 12 / 58
	Note	-	This status: without 4–8 main boom sections, main/sub hooks, tip pulleys, movable counterweight, main boom pressure reducer, main boom stop plate
Hook & Reeving	Rated Load / t	t	9 / 75 (double hook head)
	Number of Sheaves	-	0 / 5
	Reeving Factor	-	1 / 11
	Hook Weight / kg	kg	310 / 735
Working Speed	Main Hoist	-	Single-line speed: 0–135 m/min; Wire rope: Φ20mm / 440m; Max. single rope tension: 9t
	Slewing	-	0–1.5 r/min
	Luffing / Lowering	-	80s/100s (10°–75°)
	Boom Extension / Retraction	-	960s/800s (15.1m–90m)
	Vertical Outrigger Extension / Retraction	-	50s/60s
	Horizontal Outrigger Extension / Retraction	-	30s/20s