Shacman 8x8 300Tons Oversize/Overweight Load Tractor Super Truck

Hubei Chengli Special Automobile Co., Ltd is one of the leading manufacturers and suppliers of shacman 8x8 300tons oversize/overweight load tractor super truck in China. If you're going to buy high quality shacman 8x8 300tons oversize/overweight load tractor super truck, welcome to get more information from our factory. For price consultation, contact us.

 

------- Before everything: what is an overweight load tractor?

 

         An overweight load tractor (also called an overweight hauling tractor or heavy-haul truck tractor) is a heavy-duty semi-truck designed to pull overweight and oversized loads that exceed standard legal weight limits. These tractors are built with reinforced components to handle extreme weights and often work in conjunction with specialized trailers (like lowboys, multi-axle trailers, or modular platforms).

 

Key Features of an Overweight Load Tractor:

• High-Horsepower Engine

Typically 500–700+ HP (e.g., Cummins X15, Detroit Diesel DD16) to handle heavy loads on steep grades.

• Heavy-Duty Transmission

Often 18-speed manual or automated manual transmissions (AMTs) for precise control under heavy loads.

• Reinforced Frame & Suspension

Thicker frame rails and air or hydraulic suspension to support extra weight without bending or breaking.

• Multiple Drive Axles

Tridem (3 axles) or quad-axle configurations for better weight distribution and traction.

Some use 8x6 or 10x8 drivetrains (meaning 8 or 10 total wheels with 6 or 8 being driven).

• Heavy-Duty Towing & Hitch Systems

Fifth wheel rated for 50,000+ lbs or gooseneck setups for extreme loads.

Some use booster trucks (pusher/puller tractors) for extra power.

• Enhanced Braking Systems

Jacobs engine brakes + disc brakes to safely stop massive loads.

Some have retarder systems for downhill control.

• Permit Compliance & Safety Gear

Oversize/overweight permits are required (varies by state/country).

Often equipped with flashing lights, flags, and escort vehicle coordination.

 

Common Uses:

• Hauling mining equipment (excavators, dump trucks).
• Transporting construction machinery (cranes, bulldozers).
• Moving oilfield equipment (drilling rigs, fracking trailers).
• Delivering wind turbine components or industrial parts.

 

Permit & Legal Considerations:

• Weight Limits: Standard U.S. federal limit is 80,000 lbs, but overweight permits allow up to 200,000+ lbs (varies by state).
• Escorts: Often require pilot cars (front/rear) for safety.
• Route Planning: Some roads/bridges have weight restrictions.

 

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Reference Pictures for Shacman 8x8 300Tons Oversize/Overweight Load Tractor

 

 

------ What are the advantages of Shacman 8x8 300Tons Oversize/Overweight Load Tractor?

 

         The Shacman 8×8 300-ton oversize/overweight load tractor truck is a heavy-duty powerhouse designed for extreme hauling in mining, construction, and heavy industries. Here are its key advantages:

 

1. Massive Load Capacity (300+ Tons)

8×8 Drivetrain – All-wheel drive with 8 powered wheels ensures superior traction and weight distribution.

High GVWR – Can handle 300+ metric tons (with appropriate trailers), making it ideal for mining dump trucks, cranes, and industrial modules.

Multi-Axle Support – Often paired with 10+ axle heavy-duty lowboy trailers for legal weight distribution.

 

2. Powerful & Reliable Engine

Cummings M15NS6B660 Diesel Engine – 660 HP and 3,200 Nm torque, optimized for steep grades and heavy loads.

High Fuel Efficiency – Advanced turbocharging and combustion tech reduce operating costs.

Durable Cooling System – Prevents overheating during long hauls in harsh conditions (e.g., deserts, mines).

 

3. Allison Transmission+Torque Converter+Transmission Retarder

2-3x Torque Multiplication: Helps heavy vehicles (e.g., 200-ton haulers) accelerate effortlessly, even on steep grades.

High Retarding Power: Provides up to 600+ hp of braking force, minimizing service brake use.

Downhill Speed Control: Maintains safe speeds without overheating brakes (critical for mountainous routes).

 

4. Heavy-Duty Chassis & Suspension

Reinforced Steel Frame – Resists bending under extreme stress.

Hydraulic/Pneumatic Suspension – Adjustable for load balancing and rough terrain.

Multi-Axle Steering – Improves maneuverability for tight turns (critical in construction sites).

 

5. Superior Traction & Off-Road Capability

Central Tire Inflation System (CTIS) – Adjusts tire pressure on-the-fly for sand, mud, or rocky terrain.

Locking Differentials – Prevents wheel spin when hauling uphill or on slippery surfaces.

High Ground Clearance – Minimizes undercarriage damage on unpaved roads.

 

6. Safety & Compliance Features

ABS + EBS Braking – Ensures control when stopping heavy loads.

Overload Alarms – Warns drivers if weight exceeds permit limits.

LED Lighting & Reflectors – Meets oversize load visibility regulations.

 

7. Cost-Effective Option

Lower Price – Compared to Western brands (e.g., Kenworth C500, Mercedes Zetros), Shacman offers better value for heavy haulers around the globe.

Local Support – Easier access to parts/service in China and BRI (Belt & Road) countries.

 

8. Application Scenarios

• Mining: Hauling dump trucks, excavators.
• Energy: Transporting wind turbine blades, oil rigs.
• Infrastructure: Bridge girders, dam construction.
• Military: Heavy equipment logistics.

 

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Specifications of Shacman 8×8 Overweight Load Tractor

 

No.	Item	Parameter / Description
1	Model Designation	Heavy Transport Tractor
2	Announcement Model	/ (Not specified)
3	Drive Configuration	8×8
4	Dimensions (L×W×H, mm)	8850 × 2850 × 4000
5	Wheelbase (mm)	1800 + 3000 + 1450
6	Fifth Wheel Height (Unladen/Laden, mm)	1700 ± 30
7	Front Overhang (mm)	1725
8	Rear Overhang (mm)	875
9	Front Swing Radius (mm)	2350
10	Rear Swing Radius (mm)	2240
11	Minimum Turning Radius (m)	13
12	Max Speed (km/h)	89
13	Max Gradability (300T Load)	12%
14	Ground Clearance (mm)	340
15	Curb Weight (kg)	> 19,000
16	Max Towing Capacity (kg)	300,000
17	Engine Model	Cummins M15NS6B660 (Euro VI, 660 HP)
18	Displacement (L)	14.5
19	Rated Power/RPM	486 kW @ 100 rpm
20	Max Torque/RPM	3200 Nm @ 900–1400 rpm
21	Transmission Model	Allison 4970SP-PR with Torque Converter
22	Transmission Max Input Torque (N·m)	19,029.9 (1st gear, torque converter stall)
23	Torque Ratio	1.62
24	Gear Ratios	4.7, 3.3, 2.21, 1.53, 1.0, 0.76, 0.67, R-5.55
25	Retarder	Integrated Allison Output Retarder
26	Clutch	Multi-plate Wet Clutch (Integrated)
27	Transfer Case Model	Domestic ZQC2800
28	Transfer Case Gear Ratios (High/Low)	1.11 / 2.37
29	Transfer Case Max Input Torque/RPM	35,000 N·m @ 2950 rpm
30	Torque Split Ratio	1:2.13
31	Axle Ratio	6.733
32	Axle Capacity	Front: Sinotruk-Handt 9T MAN-tech Steering Drive Axle (Dual) Rear: 16T MAN-tech Tandem Double-Reduction Drive Axle (Dual)
33	Max Input Torque (Front/Middle Axle)	5490 N·m / 9320 N·m
34	Max Input Torque (Middle/Rear Axle)	21,580 N·m / 17,410 N·m
35	Tires	14.00R20 20PR Tubed Off-Road Tread (20-Ply)
36	Suspension	Front/Rear: Leaf Spring Balanced Suspension (Front with Hydraulic Shock Absorbers)
37	Steering System	ZF8098 Steering Gear (Imported) + Auxiliary Hydraulic Cylinder
38	Braking System	Dual-Circuit Pneumatic Brakes + Jacobs Engine Brake + Retarder Front/Rear: Combined Brake Chambers + Trailer Brake Interface (3 Ports) Dual-Cartridge Air Dryer + 6-Channel ABS (Domestic)
39	Fuel Tank	900L + 400L Parallel Tanks (Electronically Controlled Switching)
40	Air Intake/Exhaust & Aftertreatment	Direct-Flow Air Filter "U"-Type Euro VI Aftertreatment (Underbody Exhaust)
41	Fifth Wheel	Reinforced 90mm Dual-Pivot Fifth Wheel
42	Battery	2 × 12V, 220Ah Low-Temperature Maintenance-Free
43	HVAC	Auto Climate Control + Fuel-Powered Heater + Independent Auxiliary Heater
44	Cab	X5000L Extended High-Roof Cab (Wide Berth, Side Deflectors) + 4-Point Air Suspension
45	Cooling System	Front Main Radiator + Side Auxiliary Radiator (Series Connection) Temperature-Controlled Fan Engagement
46	Frame	Heavy-Duty Reinforced Frame (970mm–850mm Variable Width) 10mm + 8mm Thick × 300mm Height (C-Section Main/Sub Beams + Triple-Layer Local Reinforcement)
47	Towing Hooks	Heavy-Duty Front/Rear Tow Hooks (70mm Pin Diameter)
48	Exterior Accessories	Toolbox + Left Side Access Ladder + Operating Platform Integrated Arc Mudguards (Middle Axle) + Full Metal Mudguards (Rear Axles)
49	Electrical System	24V, Negative Ground
50	Drive Shaft	Cross-Type Universal Joint, 180mm Face Gear Flange

 

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------ Why choose us?

 

         Chengli Group (CLW Group) is a leading Chinese manufacturer of specialized vehicles. In 2023, CLW Group reported over 1.4 billion USD for annual revenue, with over 50,000 units sold, at least 20% of which is for overseas market. Here are our key advantages:

 

• Strong Customization Capabilities: We can offer tailored solutions for different industries (utilities, construction, municipal, etc)

 

• Cost-Effective Solutions: Competitive pricing compared to Western brands, with good after-sales support. Lower maintenance costs due to locally sourced parts and efficient design.

 

• Rich Experience in Export Industry: We have exported to over 80 countries in the world, familiar with the requirements of local clients

 

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Better Call Sam !

(WhatsApp: +86 1539 1534 720)

-- Overseas Sales Representative

Hubei Chengli Special Automobile Co., Ltd

Hubei Weiyu Special Vehicles Co., Ltd

Factory: Chengli Automobile Industry Park, Suizhou, Hubei, China

Office: Room 2614-2615, Block B, Longyang Time Square, Hanyang District, Wuhan, China

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