Below is a typical FRP pipe production line equipment list used in modern FRP pipe manufacturing plants.
The inner liner making machine is responsible for producing the inner corrosion-resistant layer of the pipe. This layer is typically made from resin and fiberglass surface mat.
Forms the smooth inner surface of the pipe
Provides corrosion resistance and chemical protection
Creates a bonding layer for the structural reinforcement
During production, resin-impregnated fiberglass material is applied onto a rotating mandrel to form the initial pipe liner.
The filament winding machine is the core equipment of the entire FRP pipe production line. It builds the main structural layer of the pipe.
Winds fiberglass roving onto the rotating mandrel
Controls winding angles and fiber tension
Forms the high-strength reinforcement layer
Most modern filament winding machines use CNC or microcomputer control systems to ensure precise fiber placement and stable pipe quality.
For FRPM pipe production, a sand or mortar adding system is commonly integrated into the line.
Adds quartz sand between structural layers
Improves pipe stiffness and strength
Reduces raw material costs
This technology allows manufacturers to produce fiberglass reinforced plastic mortar pipes (FRPM) with excellent structural performance and economic efficiency.
The resin mixing system prepares the resin mixture used during the production process.
Mixes resin with curing agents and additives
Controls resin ratio and viscosity
Supplies resin to the liner machine and winding machine
Accurate resin mixing ensures the final pipe has reliable strength, durability, and corrosion resistance.
After the winding process is completed, the pipe must undergo curing to solidify the resin.
Provides heat or controlled temperature curing
Promotes resin polymerization
Enhances pipe mechanical properties and structural stability
Proper curing is essential to ensure the finished pipe meets mechanical and performance requirements.
Once curing is finished, the pipe must be removed from the mandrel.
Separates the pipe from the mold
Uses hydraulic systems to pull out the pipe safely
Prevents deformation during demoulding
This equipment is especially important when producing large-diameter FRP pipes.
After demoulding, pipe ends often require cutting and finishing.
Cuts pipes to the required length
Smooths pipe edges
Ensures dimensional accuracy
This process ensures that the pipes meet installation standards and project requirements.
Minor surface imperfections may occur after curing. The repairing or grinding machine is used to improve pipe surface quality.
Removes burrs or uneven surfaces
Repairs small defects
Polishes the pipe surface
Many grinding systems also include dust control systems for safer operation.
To guarantee quality and safety, finished pipes must undergo pressure testing.
Performs hydrostatic pressure tests
Detects leaks or structural weaknesses
Verifies pipe performance under working pressure
This testing step ensures the pipes meet industry standards before delivery.
Mandrels are critical components used to form the pipe shape during production.
Steel mandrels
Composite mandrels
Expandable mandrels
The mandrel determines the pipe diameter and length, making it an essential element of the production line.
Modern FRP pipe production lines are equipped with an advanced control system that manages the entire manufacturing process.
Controls mandrel rotation speed
Adjusts fiber winding angles
Synchronizes machine operations
Monitors production parameters in real time
Automation significantly improves production efficiency and product consistency.
A standard industrial FRP pipe production line usually includes the following equipment:
Inner liner making machine
Filament winding machine
Sand adding system
Resin mixing system
Curing station
Pipe extraction machine
Trimming machine
Repairing and grinding machine
Hydraulic pressure testing machine
Mandrels
Control system
Together, these machines form a complete manufacturing system capable of producing high-quality FRP pipes for water supply, wastewater treatment, chemical transportation, and industrial pipelines.
