Fiberglass Storage Tank Production Equipment

Fiberglass storage tank production equipment is a specialized category of FRP Product Manufacturing Equipment designed to produce corrosion-resistant, lightweight storage tanks for industrial applications. This equipment primarily centers around fixed-length winding technology, which is the dominant method for manufacturing both vertical and horizontal FRP tanks. Unlike pipe production lines that focus on continuous lengths, tank production equipment handles discrete, large-diameter vessels with integral bottoms and specialized internal linings. The machinery ranges from large horizontal winding machines with removable or fixed mandrels to auxiliary systems for lining application, curing, and post-processing.

Core Production Process: Fixed-Length Winding

Main equipment composition

1. Wrapping machine - Core equipment : Typically a large horizontal wrapping machine

Core mold / Die ;

Fixed metal core mold: used for standard diameter storage tanks, made of steel or aluminum alloy, with a smooth surface and a release taper.

Detachable mandrel: Used for extra-large diameter or non-standard storage tanks. After production, it can be disassembled and removed from the manhole of the storage tank.

2. Lining Equipment - A Critical Step:
The inner lining of the storage tank is a crucial layer for preventing leakage and resisting corrosion; its manufacturing quality is of paramount importance.

Resin supply system

Curing system

Demolding and lifting equipment

Post-processing and testing equipment

Other production processes and equipment (for specific types of storage tanks)

Hand lay-up/vacuum delivery process

Applications: Primarily used for large storage tanks (which cannot be transported and must be manufactured at the point of use) or non-standard equipment with highly irregular shapes on the production site.

Main equipment:

Small tools are the main tools: such as resin rollers, brushes, and mixers.

Vacuum pumps are used in vacuum injection processes to compact fibers and resins under vacuum bags, thereby increasing the fiberglass content and product quality.

Modular assembly

Application: Ultra-large storage tanks, where panels are first produced in the factory and then assembled on-site.

Main equipment: large flat winding machine or production line for making boards.

Working Principle of Fiberglass Storage Tank Production Equipment

Fiberglass storage tank production equipment operates through several distinct methods, with fixed-length winding being the most common:

Fixed-Length Winding Process (Primary Method):
A large horizontal winding machine rotates a steel or aluminum mandrel that matches the tank’s internal diameter. Resin-impregnated glass fibers are applied onto the mandrel in precise patterns to build the tank wall. The process begins with a corrosion barrier layer (liner) using specialized resins and surface veils. Structural layers follow with helical and hoop windings. After curing in an oven or under radiant heaters, the tank is demolded—either by stripping the mandrel out (fixed mandrel) or disassembling the mandrel inside the tank and removing it through the manway (detachable mandrel). Finally, post-processing equipment adds nozzles, manways, and performs hydrostatic testing.

Hand Lay-Up / Vacuum Infusion (For Field Fabrication):
Used when tanks are too large to transport. Workers apply resin and glass layers manually onto a mold using rollers and brushes. Vacuum pumps compact the laminate under flexible bags, increasing fiber content and reducing voids.

Modular Assembly (For Ultra-Large Tanks):
Factory-produced flat panels are shipped to site and assembled into tanks using on-site joining techniques.

Applications of Fiberglass Storage Tank Production Equipment

The tanks produced by this equipment serve industries requiring durable, non-corroding storage:

• Chemical Processing: Storage of hydrochloric acid, sulfuric acid, caustic soda, and organic solvents.

• Water & Wastewater: Potable water storage, sewage treatment tanks, and desalination brine tanks.

• Oil & Gas: Crude oil storage, produced water tanks, and fuel storage at remote sites.

• Power Generation: Demineralized water tanks, cooling tower basin tanks, and FGD reagent storage.

• Food & Beverage: Bulk storage of brines, acids for cleaning, and food-grade additives.

• Mining & Metallurgy: Leach solution tanks, pregnant liquor storage, and tailings treatment.

Problems It Solves

Investing in fiberglass storage tank production equipment resolves several critical challenges for tank users and fabricators:

• High Cost of Importing Finished Tanks: Large FRP tanks are expensive to ship due to their volume. Local production eliminates ocean freight, customs delays, and import duties.

• Transport Limitations on Diameter: Tanks above 3 meters in diameter often cannot be shipped by road or rail. On-site production capability using hand lay-up or modular equipment solves this constraint.

• Corrosion Failures in Steel Tanks: Metal tanks lining fails or rusts through within years. FRP tanks produced on this equipment last 20+ years in aggressive chemical service.

• Inflexible Specifications: Purchased tanks force you to accept standard diameters and nozzle placements. Your own production equipment allows custom dimensions, wall thicknesses, and fitting locations.

• Emergency Replacement Delays: When a critical tank fails, waiting months for a replacement shuts down operations. In-house production can deliver a new tank in days or weeks.

Advantages of Fiberglass Storage Tank Production Equipment

Supplier Advantages with Pipezy

• 20+ years of FRP manufacturing experience – Pipezy knows tank production firsthand.

• Custom-designed equipment – tailored to your target diameters, volumes, and site needs.

• Complete solutions – winding machines, mandrels, curing ovens, and post-processing tools.

• Field fabrication support – hand lay-up and vacuum infusion kits for on-site work.

• Reliable after-sales – remote support, training, and optional on-site commissioning.

• ISO 9001 & CE certified options – with full documentation.