Turnkey recirculating aquaculture system sized to your farm
Our turnkey RAS aquaculture systems are engineered and supplied complete — from tank selection and filtration to pump stations and installation supervision. Every package is matched to your species, stocking density, water source and local climate. Recirculating aquaculture is now a globally recognised method for sustainable fish and shrimp production; for an overview of the technology see the recirculating aquaculture system reference. When you choose Tosun, you get RAS aquaculture systems backed by field-proven designs.
Corrosion-resistant tanks
PP/FRP composite tanks and housings built for long-term exposure to saltwater and high humidity.
Integrated filtration
Stainless drum filters, biofilter media housings and UV-capable piping trains from one source.
Fast BOM turnaround
Send farm capacity and target species — we return a material specification and BOM within 24 hours.
Overseas installation team
Our own overseas installation crew available for on-site guidance or full installation.
Why choose our RAS aquaculture systems
Tosun Tech delivers more than equipment. We provide a complete engineering partnership that reduces risk, shortens commissioning time, and helps your farm reach stable production faster. Learn more about our company and certifications on the About Tosun Tech page. Our RAS aquaculture systems are already running in commercial farms across China.
- One-stop supply: tanks, filtration, pumps, piping and fittings from a single source
- Designs validated against ASTM D3299, ISO 9001 and project-specified standards
- BOM and layout drawings returned within 24 hours after receiving farm data
- Overseas installation crew available for on-site guidance or turnkey installation
- Reference farms already operating in Sichuan, China and ready to scale globally
What the package includes
- FRP or PP culture tanks sized to your stocking density
- Galvanized canvas tanks (optional)
- Stainless drum filters and biofilter media housings
- Pumps, piping and valve assemblies matched to the flow rate
- Fittings, flanges and filtration housings
- Installation drawings and commissioning support
- Spare-part recommendation list
Material & design standards
| Item | Specification |
|---|---|
| Tank material | FRP / PP / PVC-lined steel |
| Pipe systems | PVC-U / PP-H / SS304 or SS316 |
| Design pressure | Customized to local hydraulic conditions |
| Applicable standards | ASTM D3299 / ISO 9001 / project-specified |
How a standard RAS module is arranged
The diagram below shows a typical tank-to-treatment flow: culture tanks, drum filtration, biofiltration, UV/ozone disinfection, and pump return loops. We customize tank count, diameter and pipe sizing to your target biomass.
RAS recirculating aquaculture system diagram
Typical applications
Reference projects
Real sites running Tosun equipment in Sichuan, China — from land-based perch farms to shore-based indoor RAS facilities.
Worldwide delivery & on-site support
We ship our RAS aquaculture systems globally and support customers through every stage: feasibility review, system layout, equipment delivery, installation supervision, commissioning and operator training. Whether you are building a land-based fish farm, a shrimp RAS facility or a hatchery, our team can be on-site to make sure the system runs as designed. To start a conversation with our engineering team, visit our contact page.
Frequently asked questions
What is a recirculating aquaculture system (RAS)?
A RAS is a closed-loop fish or shrimp farm where water is continuously filtered, oxygenated and recirculated. It allows high-density farming with minimal water consumption and full control over water quality.
How quickly can I get a quotation?
Send us your farm capacity, target species and water source. We typically return a material specification and BOM within 24 hours, followed by a layout drawing and commercial quotation.
Can your team install the system overseas?
Yes. We have our own overseas installation crew who can travel to your site for supervision, assembly guidance or full turnkey installation.
Need a BOM for your aquaculture project?
Send your farm capacity, water source and target species. We reply with a material specification within 24 hours.