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Next-Gen Composite Manufacturing Tech

FRP Gel Coat Flat Sheet Production Line for Truck Body Panels

High-precision continuous sheet molding lines engineered for ultra-wide, high-gloss, weather-resistant fiberglass reinforced composite panels. Empowering the global refrigerated transport, dry cargo, and commercial vehicle body building industry with automated, AI-assisted continuous manufacturing.

Automated Panel Solutions

Featured Flat Sheet & Gel Coat Production Equipment

Engineered specifically for manufacturing continuous exterior skins and interior wall linings for commercial refrigerated trailers, light truck boxes, and modular transit bodies.

Fiberglass gel coat flat panel making machine

Fiberglass Gel Coat Flat Panel Making Machine

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FRP flat sheet making machine

Continuous FRP Flat Sheet Making Machine

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Frp Gel Coat Flat Panel Making Machine

High-Gloss Gel Coat Truck Skin Production Line

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Fiberglass roofing sheet making machine

Fiberglass Roofing & Translucent Sheet Machine

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Commercial Mobility Landscape

Lightweight Revolution in Commercial Vehicle Body Manufacturing

The global transportation and cold-chain logistics sectors are undergoing a profound structural transition. Traditional aluminum and painted sheet metal truck body superstructures are systematically being replaced by advanced Fiberglass Reinforced Polymer (FRP/GRP) composite flat sheets.

Cold Chain Thermal Efficiency

Refrigerated transport (reefers) demands zero thermal bridging and stringent temperature retention. Continuous FRP gel coat sheets bonded to XPS or PU core materials achieve unprecedented insulation values, preventing condensation, resisting bacterial growth, and satisfying FDA/HACCP food sanitation standards.

Electric Fleet Weight Reduction

As commercial delivery fleets transition to battery-electric vehicles (BEVs), payload capacity is severely constrained by heavy battery packs. Continuous FRP skin panels deliver an exceptional strength-to-weight ratio, trimming up to 30-40% of body tare weight and significantly extending single-charge driving range.

Corrosion & UV Resilience

Operating in aggressive road-salt environments, coastal climates, and intense sunlight causes metallic truck panels to rust and pit. High-performance isophthalic/neopentyl glycol (NPG) gel coats integrated during continuous line manufacturing provide an impervious shield against UV degradation, acid rain, and road chemical corrosion.

Precision Engineering

Continuous Automated Sheet Forming & Doctor-Blade Gel Coat Chemistry

DNUO's continuous FRP gel coat sheet production line integrates cutting-edge automated feeding, digital metering, precision doctor-blade leveling, and synchronized dual-film traction. The line transforms liquid unsaturated polyester resin, vinyl ester, or epoxy systems combined with fiberglass rovings into high-strength, seamless composite panels of up to 3200mm in width.

Unlike batch molding or manual vacuum infusion, our automated continuous line applies an ultra-precise gel coat layer (typically 200–500 microns thick) with micro-level thickness uniformity across the full machine width. Multi-zone PID thermal curing tunnels ensure cross-linking density reaches over 92% prior to exit cutting, ensuring no warpage, zero delamination, and mirror-grade exterior surface tension.

  • Automated Gel Coat Metering: Closed-loop servo pump control eliminates bubbles, orange peel textures, and thickness deviations.
  • Multi-Axial Reinforcement: Simultaneous feeding of chopped strand mats, woven roving, and roving yarn for optimal flexural modulus and impact resistance.
  • Intelligent Thermal Cross-Linking: Independent multi-stage hot-air circulation zones with real-time temperature telemetry.
Fiberglass Gel Coat Flat Panel Making Machine Line View
Application Scenarios

Tailored Composite Solutions for Diverse Vehicle Superstructures

Continuous FRP gel coat flat sheets produced on our equipment serve as the vital structural and aesthetic skin for sandwich composite panel construction across the commercial vehicle spectrum.

Refrigerated Trailers & Cold Storage Box Trucks

Seamless exterior skins up to 13.6 meters without joints prevent water vapor infiltration into polyurethane insulation foam. The gel coat surface resists chemical sanitizers and ensures smooth airflow over outer walls, lowering aerodynamic drag.

Dry Freight & Last-Mile Express Delivery Vans

High puncture resistance protects cargo from internal pallet impacts and external brush collisions. Lightweight continuous sheets can be laminated with PP honeycomb cores to create rigid, featherweight side walls that survive harsh inner-city logistics.

Recreational Vehicles (RVs) & Motorhomes

Premium high-gloss gel coat panels provide an automotive-grade class-A surface finish that requires no additional painting. Exceptional UV stabilizers prevent yellowing, chalking, or micro-cracking over decades of outdoor exposure.

Specialized Modular Shelters & Military Logistics

Customizable fire-retardant (ASTM E84 Class A), anti-static, and food-contact certified sheet formulations cater to mobile medical containers, field command shelters, telecommunication equipment cabins, and livestock transport haulers.

Global Manufacturing Pioneer

Qinhuangdao DNUO Technology Development Co., Ltd.

Founded in 1999, Qinhuangdao DNUO Technology Development Co., Ltd. is a premier high-tech enterprise dedicated to the R&D, precision manufacturing, global sales, and turnkey commissioning of continuous FRP (Fiberglass Reinforced Plastic) sheet making machines. Located in the coastal industrial hub of Qinhuangdao City, China, DNUO has spent more than 27 years perfecting continuous composite forming technologies.

Adhering to the guiding ethos of "Technology Empowers Quality, Service Creates Value," DNUO has established a benchmark for reliability, line speed, energy conservation, and intelligent PLC process control. Our machines operate seamlessly across major composite manufacturing bases in over 60 countries.

Qinhuangdao DNUO Technology Factory Headquarters
1999
Established Year
27+
Years Industry Expertise
60+
Countries & Regions
200+
Specialized Employees
State-of-the-Art Facilities

Manufacturing Infrastructure & Global Trade Footprint

Tour our heavy-duty assembly facilities, precision machining workshops, and view our international composite exhibition appearances across Europe, the Americas, the Middle East, and Asia.

DNUO Precision Machine Assembly Workshop 1
Assembly Hall Alpha
DNUO Precision Machine Assembly Workshop 2
Heavy Equipment Fabrication
DNUO Machine Testing Line
Pre-Commissioning Test Zone
DNUO Machine Electrical Integration
PLC & Thermal Control Staging
DNUO Factory Main Entrance
DNUO Technology Campus
DNUO Machine Components Finishing
Precision Components Facility
DNUO International Trade Expo 1
JEC World Paris Exhibition
DNUO International Trade Expo 2
Global Client Consulting
Continuous Forming Portfolio

Full Series Continuous FRP Line Configurations

From ultra-wide gel coat truck skin lines to high-speed translucent corrugated roofing, embossed pebble-grain anti-slip sheet lines, and gutter manufacturing systems.

FRP Gel Coat Sheet Making Machine
Fiberglass Gel Coat Sheet Making Machine
FRP Gutters Making Machine
Fiberglass Gutter Making Machine
FRP Corrugated Sheet Manufacturing Machine
Fiberglass Roofing Sheet Making Machine
FRP Color Sheet Making Machine
Fiberglass Colors Panel Production Machine
FRP Embossed Sheet Making Machine
FRP Embossed Anti-Slip Panel Machine
Operational Excellence & ROI

Continuous Line Technology vs. Discontinuous Batch Molding

Investing in a continuous FRP gel coat flat sheet production line creates a decisive competitive advantage for commercial vehicle body manufacturers and composite suppliers.

90%+ Raw Material Yield

Automated doctor-blade resin leveling and automated edge trimming cut raw resin and fiberglass waste down to under 5%, in contrast to hand lay-up operations which regularly experience 15–25% resin scrap and resin pooling.

70% Labor Reduction

An entire high-output line requires only 3 to 4 operators per shift for raw material replenishment, digital parameter oversight, and roll handling, replacing dozens of manual laminators while ensuring consistent mechanical quality.

Seamless Monocoque Lengths

Continuous flying-shear technology produces sheets of custom length—from 10 meters to 100-meter continuous coils. Truck bodies can be manufactured with zero horizontal or vertical perimeter seams, eliminating leak risks entirely.

Complete Machine Line Portfolio

Explore Our Full Range of FRP Sheet Production Equipment

Select from our industry-proven continuous sheet production machinery, trusted by world-leading truck body builders, composite processors, and architectural roofing fabricators.

Fiberglass gel coat flat panel making machine

Fiberglass Gel Coat Flat Panel Making Machine

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FRP flat sheet making machine

FRP Flat Sheet Making Machine

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Frp Gel Coat Flat Panel Making Machine

FRP Gel Coat Flat Panel Making Machine

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Fiberglass roofing sheet making machine

Fiberglass Roofing Sheet Making Machine

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FRP Corrugated Sheet Manufacturing Machine

FRP Corrugated Sheet Manufacturing Machine

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FRP Embossed Sheet Making Machine

FRP Embossed Sheet Making Machine

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Fiberglass Gel Coat Sheet Making Machine

Fiberglass Gel Coat Sheet Making Machine

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FRP Flat Sheet Making Machine

Industrial FRP Flat Sheet Making Machine

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Ready to Engineer Your Custom FRP Truck Body Panel Production Line?

Consult directly with DNUO senior composite automation engineers for line layout designs, width & thickness customizations, resin formulation pairing, and global on-site commissioning services.

Request Custom Proposal & Technical Catalog