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Automotive Profile Roll Forming Equipment Series
Truck body roll forming machine
Truck body roll forming machine
Truck body roll forming machine
Truck body roll forming machine
Truck body roll forming machine
Truck body roll forming machine

Truck body roll forming machine

Truck body roll forming machines are automated production lines specifically designed for manufacturing truck body side panels, floor panels, and trailer body panels. The equipment uses a continuous roll forming process to process steel coils into body panel profiles with reinforced ribs, improving the overall strength and durability of the truck body. It is suitable for manufacturing truck, semi-trailer, agricultural vehicle, and electric vehicle bodies.

Truck body roll forming machine — Professional manufacturer, high-precision forming, efficient and stable, smart manufacturing for lightweighting.

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Equipment Overview

The Truck body roll forming machine is a specialized cold-roll forming production line designed for manufacturing side panels, floor panels, and container panels for trucks, trailers, and semi-trailers. These panels are core structural components of the cargo body; their flatness, strength, and dimensional accuracy directly determine the load-bearing capacity, service life, and aesthetic quality of the vehicle body. Utilizing a continuous cold-roll forming process, the equipment transforms metal coils into finished panels in a single, fully automated workflow—encompassing uncoiling, guided feeding, roll forming, cut-to-length shearing, and discharge onto support pallets.

The entire line features a fully automatic PLC control system with a touchscreen HMI, ensuring continuous, automated operation from uncoiling to finished product discharge. The equipment employs a robust "arch-style" gearbox transmission structure, offering high rigidity, precision, and durability. It is compatible with various metal sheet materials—such as GI cold-rolled and hot-rolled steel—handling thicknesses of 2.0 mm and material strengths of 235–345 MPa. It operates at a forming line speed of 2–15 m/min and utilizes a 22-station forming configuration. Requiring only 2–3 operators, this system is essential equipment for commercial truck and trailer manufacturers aiming to achieve large-scale, standardized, and intelligent production.

The products strictly comply with the national standard GB/T 6726-2008: "Dimensions, shape, weight and permissible deviations for cold-formed steel sections for automobiles."


Core Advantages and Selling Points

(1) Arch-frame gearbox drive: High rigidity, high precision, and long service life

The forming machine utilizes an arch-frame gearbox drive structure, a key advantage distinguishing it from conventional equipment using chain drives or side-plate drives.

Compared to chain drives, the gearbox drive offers significant benefits such as smooth operation, low noise, high precision, and extended service life. The arch-frame structure provides high rigidity and excellent resistance to deformation, ensuring stable, high-intensity operation over long periods. Powered by two 22kW main motors, the dual-motor drive delivers ample power and high torque, guaranteeing stable and efficient processing of 2.0mm sheet metal across 22 forming stages. The design features differentiated shaft diameters—a Φ140mm upper shaft and a Φ110mm lower shaft (both quenched and tempered for strength). The upper shaft bears the primary forming load while the lower shaft provides support; this scientifically sound structural design ensures superior load-bearing capacity.

(2) 22-stage precision roll forming: Accurate and stable cross-sectional dimensions

The machine employs a 22-stage progressive cold-roll forming process to gradually shape the metal sheet into the standard cross-section required for vehicle body panels. The 22-stage layout is scientifically optimized to effectively minimize material stress concentration, ensuring consistent cross-sectional dimensions and uniform corrugation profiles. Rolling thickness: 2.0mm, covering the mainstream thickness requirements for commercial vehicle body panels.

Rolling materials: GI (galvanized) cold-rolled sheets and hot-rolled sheets; highly adaptable to various materials.

Material strength: 235–345 MPa, meeting structural strength requirements for vehicle body panels.

Shaft material: 40Cr with quenched and tempered treatment (HB 220–260), offering excellent comprehensive mechanical properties.

Roll material: Cr12MoV with quenching treatment (HRC 58–62), ensuring high hardness, superior wear resistance, and long service life.

Roll machining method: CNC turning, ensuring precise control over circular runout and radial runout.

Spacers: To minimize runout on each roll shaft, spacers are machined from thick-walled tubing to ensure form and position tolerances and maximize contact area with the rolls; the inner bore features a clearance fit with the roll shaft.

Drive-side protective housing: Ensures operational safety.

(3) High-efficiency production with industry-leading capacity

The entire line integrates a fully automated process covering uncoiling, forming, cutting, and unloading. The forming line speed is continuously adjustable between 2 and 15 m/min, ensuring stable and efficient operation. Fully automated production requires only 2–3 operators, boosting efficiency by 5–10 times compared to traditional segmented processing methods. Features include aesthetically pleasing profiles, a high degree of automation, ease of operation, and long service life.

(4) High-precision fixed-length cutting (±1.0mm accuracy)

Utilizes a post-forming hydraulic shearing method, achieving a length accuracy of ±1.0mm—far exceeding industry standards. Uniform finished dimensions and stable quality effectively ensure precision during on-site installation and assembly of the body panels. Hydraulic motor power: 7.5 kW; delivers ample power.

Shearing die material: Quenched Cr12MoV (HRC 58–62); offers high hardness, excellent wear resistance, and long service life.

Shearing blade heat treatment: Quenching (HRC 58–62).

(5) High level of automation; simple operation.

Fully automatic PLC control with a touchscreen HMI enables digital management of the entire process.

Operators can set parameters such as production speed, cut length, and production quantity via the interface with a single touch.

No manual calculation of profile dimensions (e.g., hole spacing, length) is required.

The production line is fully automated, requiring no manual intervention.

Equipped with real-time monitoring and fault warning systems; automatically alerts and displays the cause of the fault upon detecting anomalies.

Novices can work independently after just 1–2 days of training.

(6) Robust, durable, stable, and reliable.

The machine bed is a welded steel structure that has undergone tempering to eliminate internal stress and prevent deformation.

The forming frame features a portal-style structure, ensuring high strength and a long service life.

Quenched Cr12MoV rollers (HRC 58–62) offer high hardness, excellent wear resistance, and long service life.

Quenched and tempered 40Cr shafts (HB 220–260) provide excellent comprehensive mechanical properties.

Quenched Cr12MoV shearing dies (HRC 58–62) ensure long service life and consistent precision.

Key electrical components are sourced from internationally renowned brands, ensuring low failure rates and long service life.

(7) Significant advantages over traditional processes.

Compared to traditional multi-step processes involving separate shearing, slitting, punching, and bending:

Lower risk—eliminates safety hazards and workplace accidents associated with multiple manual handling steps in traditional processes.

Higher efficiency—saves on labor, management overhead, and material resources across multiple stages; reduces intermediate handling steps.

Higher profile precision—delivers superior dimensional accuracy compared to manual punching and bending, resulting in a more uniform and aesthetically pleasing appearance.


Technical Parameters

Item | Parameter
Applicable materials | GI cold-rolled sheet, hot-rolled sheet
Material thickness | 2.0 mm
Material strength | 235–345 MPa
Forming machine structure | Arch-style frame with gearbox drive
Number of forming stations | 22 stations
Shaft material | 40Cr (quenched and tempered; HB 220–260)
Upper shaft diameter | Φ140 mm
Lower shaft diameter | Φ110 mm (reinforced with support; quenched and tempered)
Forming machine motor power | 22 kW × 2 units
Forming line speed | 2–15 m/min
Roller material | Cr12MoV (quenched; HRC 58–62)
Roller machining method | CNC turning (ensuring precision regarding circular and radial runout)
Spacer sleeves | Machined from thick-walled tubing (ensuring geometric and positional tolerances)
Safety guards | Protective housing installed on the drive side
Cutting method | Post-forming hydraulic cutting
Hydraulic motor power | 7.5 kW
Shearing die material | Cr12MoV (quenched; HRC 58–62)
Cut-to-length accuracy | ±1.0 mm
Control system | Fully automatic PLC control
Operators | 2–3 persons


Production Process

Uncoiling → Guided Feeding → Roll Forming (22 Stations) → Cut-to-Length → Discharge via Support Table

Process Step | Description
Uncoiling | Load metal coil onto the uncoiler for stable material feeding.
Guided Feeding | Lateral roller guidance ensures the sheet enters the main forming unit in the correct position.
Roll Forming | 22-stage progressive cold-roll forming using quenched Cr12MoV rollers to gradually shape the standard truck body panel profile.
Cut-to-Length | Hydraulic shearing after forming; precision ±1.0mm; uses quenched Cr12MoV blades.
Discharge | Output of finished products; orderly discharge.


Application Areas

The cargo body panels produced by this roll-forming equipment are widely used in the following sectors:

Cargo Truck Bodies: Side panels and floor panels for various types of cargo trucks—these panels serve as core structural components of the truck body.

Trailers and Semi-trailers: Body panel systems for various trailers and semi-trailers—characterized by high strength and excellent flatness.

Containers and Box Bodies: Side panels, roof panels, and body panels—featuring aesthetically pleasing profiles and precise dimensions.

Dump Trucks and Construction Vehicles: Body panels for dump trucks and tippers—capable of forming thick plates with superior load-bearing performance.

Special-purpose Vehicles: Body panels for vehicles such as fire trucks, sanitation vehicles, and military vehicles.

Export Vehicles: Suitable for international markets—products strictly comply with the GB/T 6726-2008 national standard.


Market Outlook

Driven by the continuous development of the global logistics and automotive industries, the market for roll-forming equipment for vehicle body panels is experiencing steady growth.

Continued growth in the commercial vehicle and trailer markets: As the global logistics industry expands and infrastructure development progresses, the production and sales volumes of trucks, trailers, and semi-trailers are steadily rising, leading to a sustained increase in demand for high-quality body panels.

Immense potential for cold-formed steel in the automotive industry: Cold-formed steel holds significant market potential within the machinery manufacturing sector, particularly in automotive manufacturing. It is widely used for components such as body panels, structural frameworks (keels), door and window frames, drive shafts, exhaust pipes, shock absorbers, chassis beams, bumpers, and various bent tubular parts. In many vehicle models, cold-formed steel components have replaced traditional stamped parts.

Driven by the trend toward vehicle lightweighting: The use of cold-formed steel aligns with the industry trend of vehicle lightweighting. Ultra-high-strength steel—produced through phase-transformation strengthening of the microstructure—offers strength several times that of ordinary carbon steel and excellent crash-energy absorption capabilities. High-strength steel sheets—specifically thin sheets with a yield strength in the 50,000–100,000 psi range—are utilized, whereas such high-strength steels are often unsuitable for large stamped panels.

Cold-roll forming replacing traditional processes: Traditional body panel production involves multiple discrete steps—such as shearing, slitting, punching, and bending—which are labor-intensive, complex, and pose safety risks. In contrast, the roll-forming process integrates these multiple steps into a single automated production line, boosting production efficiency by 5 to 10 times compared to traditional methods.

Industry standards and specifications: The national standard GB/T 6726-2008, *Cold-formed steel sections for automobiles—Dimensions, shape, weight and permissible deviations*, specifies the classification, designation, cross-sectional dimensions and tolerances, length and tolerances, weight, and marking examples for cold-formed steel used in automobiles. This standard applies to the manufacture of vehicles such as passenger cars, trucks, and trailers.


Service and Support

Solution Design: We provide personalized equipment selection and production line layout based on customer product drawings, capacity requirements, and target markets.

Custom Manufacturing: We support non-standard customization; orders can be placed using cross-sectional drawings or samples, with full oversight from roll design to complete machine manufacturing.

Installation and Commissioning: Engineers provide on-site installation, commissioning, and operator training to ensure rapid production startup.

After-Sales Support: We offer long-term technical consultation and spare parts supply; our engineers hold all necessary visas and are available for on-site service worldwide at any time.

Continuous Optimization: We provide equipment modification and capacity upgrade services to adapt to changing production needs.

Why Choose Us

Nearly 20 years of manufacturing experience: Mature technology, refined processes, and reliable quality

Arch-style gearbox transmission: High rigidity, high precision, long service life, and smooth, reliable operation

22-stage precision forming: GCr15 quenched rollers (HRC 58–62) and large shaft diameters (Φ140mm/Φ110mm)

High-precision cut-to-length: ±1.0mm cutting accuracy; Cr12MoV quenched blades (HRC 58–62)

Dual-motor drive: Two high-power 22kW motors ensuring robust performance

High-efficiency production: Forming speeds of 2–15m/min; 5–10 times higher efficiency than traditional methods

High automation: Fully automatic PLC control with touchscreen interface; the entire line can be operated by just 2–3 people

High profile precision: Superior dimensional accuracy and uniform, aesthetic appearance compared to profiles made via traditional processes

Industry standard compliance: Products strictly adhere to the GB/T 6726-2008 national standard

Direct manufacturer: No middlemen, offering excellent value for money

Global service network: Engineers hold all necessary visas, ensuring rapid response

Item Specification
Forming machine type Arch-frame style with gearbox drive
Shaft material 40Cr, quenched and tempered (HB 220–260)
Shaft diameter Upper shaft Φ140mm, lower shaft Φ110mm (reinforced with support; quenched and tempered)
Forming machine motor power 22kW × 2 units
Forming speed 2–15 m/min
Number of forming stations 22
Rolling thickness & material 2.0mm (Materials: GI, cold-rolled, or hot-rolled steel; Yield strength: 235–345 MPa)
Raw material width Subject to the actual width used during machine testing
Cut-to-length accuracy ±1.0mm
Roller material Cr12MoV, quenched (HRC 58–62)
Roller machining method CNC turning to ensure precision regarding circular runout and radial runout
Spacers To minimize runout at each station, spacers are machined from thick-walled tubing to ensure geometric tolerances and maximize contact area with the rollers; the inner bore features a clearance fit with the roller shaft.
Protective device Protective housing installed on the drive side
Shearing method Post-forming hydraulic shear
Hydraulic motor power 7.5kW
Shear die material Cr12MoV, quenched
Shear blade heat treatment Quenching (HRC 58–62)

Q97RK

Uncoiling — Guided Feeding — Roll Forming — Cut-to-Length — Palletized Discharge

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About
Wuxi Yanwu Xinhui Technology Co., Ltd.

Established in 2012, Wuxi Yanwu Machinery Co., Ltd., is a professional manufacturer specializing in the R&D, design, manufacturing, and servicing of cold roll forming equipment. The company is dedicated to providing global customers with integrated solutions for automated cold roll forming production lines.

Our main products include cable tray forming machines, racking forming machines, C/Z purlin machines, solar mounting bracket forming machines, floor deck machines, door frame machines, automotive profile equipment, and cut-to-length/slitting lines.

These products are widely used in the construction, electrical power, logistics and warehousing, automotive manufacturing, new energy, and infrastructure sectors.

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News
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