One contract, from layout to the first harvest.
Layout, tanks, treatment loop, oxygen, controls, install and biological start-up. One team owns the design and the result. Below: exactly what that covers, what it does not, and how to compare turnkey quotes.
first layout, free
custom system packed
to biofilter start-up
delivered projects
What one contract covers, and what it does not.
“Turnkey” means different things to different suppliers. This is how we split it. Gaps in scope are the most common cause of delay and extra cost, so we put this split in writing with the quote.
Layout, equipment list, flow balance
First layout free, in 3 days
—
Detailed engineering drawings
Charged; fee credited against the equipment order
—
Tanks, drum filters, skimmers, MBBR, degassing, UV
Made in our factory
—
Oxygen, ozone, settlers
Supplied, fitted and tested with the system
—
Pumps, valves, instruments, control cabinet
Sized, supplied and tested with the system
—
Building, floor slab, drain trenches
We specify what the building must provide
Civil works agreed per project
Power and water to the site
We specify the supply needed
You provide the connection
Installation and commissioning
Our engineers on site
Local labour agreed per project
Biological start-up
Engineers stay until the biofilter is running
Your team trained alongside
After start-up
Remote video, email and WhatsApp support
—
Worked back from your harvest.
A RAS is designed in reverse: the harvest you want sets the standing biomass, the biomass and feeding rate set the peak daily feed, and the feed sizes every treatment stage (). That is why the first questions are always species, target output and harvest size.SRAC Publication 282
- tonnes a year, at what sizeTarget harvest
- agreed with you, per speciesMaximum density
- sizes biofilter, oxygen and degassingPeak daily feed
- sizes drum filters and pumpsPeak flow
Drawings in 3 days. A packed system in 35.
3days
First layout
Tank layout, equipment list and flow balance, free.
7days
Samples
Sample units for OEM and distributor orders.
15days
Standard units
Standard equipment built and packed.
35days
Custom system
Built, tested and packed. Install and start-up follow on site.
Six questions to ask every supplier.
Two turnkey quotes can look alike and cover very different things. These are the questions we would ask, and how we answer them.
Is every stage sized on the same feed number?
A biofilter sized on tank volume stalls when feed rises
Yes: one peak feed number for every stage
What is the standby?
A single pump or oxygen supply can stop the farm
Standby pumps, blowers and oxygen designed in
What happens in a power cut?
Fish can be lost within minutes without backup oxygen
We plan backup oxygen, generator and alarms with you
Who stays for start-up?
Most early losses happen while the biofilter matures
Our engineers stay until it is running
Which units are made, which bought?
You need to know who stands behind each part
Listed per unit in the quote
What is excluded?
Building, power and labour are often left vague
Written scope split, as above
On power cuts: a farm manager described fish surviving a 20-minute outage only because backup oxygen opened by itself ().Global Aquaculture Advocate, 2010
One team owns the flow balance.
Own factory
12,000 m² in Boluo, Huizhou. Most units made in-house.
Sized together
Every stage against the same flow and feed.
On site to start-up
Engineers stay until the biofilter is running.
15 delivered
In China, Kazakhstan, Saudi Arabia and Japan.
Farms we delivered.
52 tanks, six parallel trains, one cold winter
11 tanks inside a building that could not be dug
We design the system and tell you what the building must provide: floor area, levels, power and water. Civil works are agreed per project.
A custom system is packed in 35 days. Shipping, installation and biological start-up follow. We give a full schedule with the quote.
Nothing. Detailed engineering drawings are charged, and the fee is credited against the equipment order.
Yes. They install, commission and stay through biological start-up, until the biofilter is running.
Species, target output and harvest size, and the site or building. A floor plan and photos help.
Tanks, drum filters, protein skimmers, MBBR biofilters, degassing towers and UV sterilizers. Other units are supplied, fitted and tested with the system, and the quote lists which.
Remote video, email and WhatsApp support from the engineers who designed your system.
Send species, output and site. Get a turnkey layout.
Send species, target output and site size. A first layout comes back in 3 days, free.
- Layout, equipment list and flow balance
- Written scope split
- Engineers on site to start-up
- No obligation to order