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Sinotruk HOWO 4x2 Synchronous Chip Sealer Truck

Engineered for professional pavement preservation and surface treatment, the Sinotruk HOWO 4x2 Synchronous Chip Sealer is a high-precision road maintenance vehicle designed for simultaneous spraying of asphalt binder and spreading of aggregate chips. This synchronous technology ensures optimal adhesion between asphalt and aggregate, significantly improving pavement durability, surface texture, and skid resistance. Built on the reliable HOWO 4x2 chassis, this vehicle is ideal for highway maintenance, asphalt overlay, bridge deck waterproofing, and rural road construction.

Sinotruk HOWO 4x2 Synchronous Chip Sealer Truck

The Sinotruk HOWO Synchronous Chip Sealer is a professional-grade pavement preservation vehicle that integrates asphalt spraying and aggregate spreading into a single, synchronized operation. Unlike traditional methods that apply asphalt and aggregate separately, this synchronous technology ensures that aggregate chips are embedded into the asphalt binder immediately after spraying, creating a strong mechanical bond that resists raveling, delamination, and moisture damage. Built on the proven HOWO 4×2 chassis with a powerful diesel engine, this vehicle features a high-capacity asphalt tank, a hydraulically driven aggregate hopper, a precision spreading auger, and an advanced control system for uniform application. This vehicle is widely used for chip seal, slurry seal, micro-surfacing, and tack coat applications on highways, urban roads, bridges, and airport runways.

Key Features:

· Sinotruk HOWO 4×2 Reliable Chassis: Built on the proven HOWO platform with excellent stability and load-carrying capacity. Powerful diesel engine provides ample power for both highway travel and PTO-driven hydraulic systems.

· Synchronous Asphalt & Aggregate Spreading: Simultaneous spraying of asphalt binder and spreading of aggregate chips ensures immediate embedment and optimal adhesion. Eliminates the need for separate applications, saving time and improving bond quality.

· High-Capacity Asphalt Tank: Large-capacity insulated asphalt tank with efficient heating system maintains optimal asphalt temperature for proper flow and adhesion. Adjustable spray bar with multiple individually controlled nozzles ensures uniform transverse distribution.

· Precision Aggregate Hopper & Spreader: Hydraulically driven aggregate hopper with variable-speed conveyor belt and wide spreading auger provides uniform aggregate coverage across the working width. Adjustable spread rate for different aggregate sizes and application requirements.

· Advanced Control System: PLC-based automatic control system with touchscreen interface allows operators to precisely adjust asphalt spray rate and aggregate spread rate. Real-time monitoring of application parameters ensures consistent quality.

· Hydraulic Power System: Reliable hydraulic system powers all critical functions including asphalt pump, aggregate conveyor, spreading auger, and hopper lift. Smooth, proportional controls for precise operation.

· Heating & Insulation System: Efficient diesel burner heating system with automatic temperature control maintains asphalt temperature within optimal range. High-density insulation minimizes heat loss and reduces fuel consumption.

· Operator-Friendly Design: In-cab and rear platform dual control stations provide operational flexibility. Clear visibility of spray and spread areas for precise application control.

Application:

· Highway chip seal and pavement preservation

· Asphalt overlay tack coat application

· Bridge deck waterproofing membrane application

· Rural road surface treatment

· Airport runway friction course application

· Parking lot and industrial pavement sealing

Product Specification

Name Model,  Specifications Belonging  System Remark
car chassis ZZ1257V5847F1 chassis Sinotruk Howo cab
engine MC09.3 5 -60 Sinotruk 350 horsepower, China VI emission standard
Asphalt tank capacity 8 cubic meters (8,000L ) Asphalt tank + stone silo Inner tank volume
Stone silo 12 cubic meters Internal Lift
Insulation layer thickness 50 mm Rock wool insulation
Stainless steel outer casing 1mm 1 thick stainless steel plate
power take-off Full- power power take-off Source of motivation for work Spraying can start from zero
Triple gear pump CPC4-50-20-16 Hydraulic system Tianjin
proportional valve EFBG-03-160-HF Taiwan
Asphalt pump motor 05-130 – BD31 Ningbo Hanzhu
Asphalt pump QGB 950 asphalt 950 L/min
Number of nozzles 32 Spraying system The control method is: 1 control 1
burner G20 (200,000 kcal/hour) Heating system Two Riello diesel burners
Thermal oil pump RY 25-25-160 Hebei
Thermal oil pump motor 380V-2.2KW-2 poles Lu’an, Anhui
Stone spreading method Gravity flow Stone chip spreading system 16-way material gate (computer controlled)
Control system method Cab touchscreen computer control + rear work platform control (backup) control system The control system adopts Siemens modular design, resulting in faster and smoother  operation and a lower failure rate.
speed sensor Ni5-G12 Trke, Germany
Temperature controller WZP-230 Shanghai Xinghui
dynamo 5.5 KW Honda gasoline generator Power System joint venture

Sinotruk HOWO 4x2 Synchronous Chip Sealer Truck

Contact information

Name: Yang
Email: [email protected]
Wechat/WhatsApp: +86 199 4767 5585

Request a Call/Email Back

Company Profile

Aout TWL

HUBEI TWL SPECIAL VEHICLE CO., LTD (hereinafter referred to as TWL), one of important member of CLW Group, is located in Suizhou City, Hubei Province, the capital of China’s Special Vehicles. TWL Truck has a first-class management, design, R&D, manufacturing, and sales professional team, as well as “special, new, high and sophisticated” facilities and equipment, complete manufacturing technology, and strict testing methods to ensure the production of high-quality and high-value-added products for the market. At present, we has strategic partnership with a number of well-known Chinese truck brand, including Dongfeng, Sinotruk, FAW, Foton, Shacman, ISUZU, JAC, JMC, Kama, etc. TWL Truck always adheres to the corporate philosophy of “people-oriented, customer-oriented, honesty and win-win”, and adheres to the business tenet of “development by innovation, survival by quality; integrity by service, and market by brand”.

After-Sales Service

Warranty
– The buyers can get a minimum warranty period of 12 months or 25000KM-50000KM, whichever comes first from the arrival date of shipment.
– During this period, we will send replacement parts and components to buyers by DHL, UPS, FEDEX or by air and by sea free of charge, easy-wearing spare parts are excluded.
– After warranty time, buyers can get all of spare parts of their truck at factory cost.
– This warranty does not cover any possible damage due to improper operaton, accident or misuse or damage due to any unauthorized services.
Technical Support
– The buyers can forever enioy technical support anytime and anywhere, overseas technical training before operaton is available at buyers cost or our cost.
Daily Mainteance Suggestion
– We strongly sugest you to buy some amount of basic spare pats along with your truck, the cost will be approximately 500 USD-800 USD/unit, no shipping cost.

Custom Solutions
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Technical Training
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