PUREHATCH Nursery Unit
Efficient Nursery for Uniform Growth and Stronger Seedlings
The PUREHATCH Nursery Unit is an advanced pre-deployment system for seaweed cultivation. It bridges the gap between hatchery and full-scale production, enabling growers to produce robust, uniformly developed seedlings for higher yields and greater planting efficiency.
Description
Our nursery solution is based on patented technology that involves fluid-driven rotation to optimize early-stage growth of seaweed on seeded substrates such as twine. Each unit includes a cultivation tank equipped with multiple rotating spools that continuously expose the seed-bearing substrates to a dynamic water flow and to even lighting – thanks to our patented light module.
Rotating cultivation spools: Powered by airflow, the rotation ensures 360° exposure to light and nutrients, improving uniformity and seedling quality
Multiple substrate options: Twine, mesh, film or natural fibers — easily mounted on spools to suit different species
Patented light module: Energy-efficient exposure to maximize growth without heat stress
Improved water movement: Rotation promotes gas exchange, nutrient delivery and fouling prevention
Proven functionality: Proven performance with Saccharina; applicable to Ulva, Palmaria and more
Installation-ready: Delivered as a ready-to-run system with minimal setup
Your Benefits
By rotating the spools and increasing seedling size before deployment, the VALUEFARM Nursery Unit helps secure a higher establishment rate and yield in full-scale farms. Compared to static or manually turned systems, it delivers:
Improved spore distribution and adhesion
Better uniformity in seedling development
Reduced manual labor and fouling risk
ROI < 1 year, based on system prices measured against cost of seeded twine
Enabler of new species through better early-stage control
The Nursery Unit is especially valuable for farms expanding their hatchery capacity or targeting new species requiring more delicate pre-cultivation. It can also support commercial nurseries providing seeded substrate to offshore or nearshore operators.
Ideal for:
✓ Nursery-stage outgrowth
✓ Optimizing twine-seeding
✓ Growth optimization
Best suited for:
Research
Seaweed Hatchery
Why choose it:
Designed for uniform light & flow with rotating spool system
Air-driven rotation minimizes complexity and energy use
Increases seedling success and end-yield potential
Supporting early-stage development and screening
The Incubator Unit serves as an ideal pre-stage, allowing controlled incubation, sporulation and early development before biomass or seedlings are transferred to the Nursery Unit for further upscaling. At the same time, the Nursery Unit is not limited to seeding production. When not used for seeding lines, it may function as a standalone photobioreactor for biomass cultivation, making it a flexible component similar to the ValueFarm Container setup.
“We believe this concept holds strong potential for the future of seaweed cultivation. Spore quality and early-stage growth are critical to the final product, and with this technology, we achieve uniform, well-distributed settlement across the entire surface of our cultivation spools.”
Specifications
Nursery Tank [1]
Patented Light Module [2]
Recirculation and Cooling Option [3]
Rotating Spool [4]
Fluidic Rotor [5]
Nozzle System [6]
Buoyancy Device [7]
Technical Specifications
Volumen: 400 L
Height: 1050 mm
Diameter: 870 mm
Weight: 15 kg
Max power usage: 250W
Spools: Height: 930 mm
Diameter: 90 mm
PureHatch Nursery Unit in use
PureHatch Nursery Unit provides a controlled environment for early-stage seaweed cultivation and handling.
It is used to support stable development during sensitive growth phases, where consistency and control are essential.
The unit enables effective workflows for nursery operations and preparation of biomass for transfer into cultivation systems or for seaweed cultivation at sea.
Data and observations from this stage help ensure reliable performance at later production steps.
Our other products/services
Laboratory Setup
From experimental trials to reliable growth data
The Laboratory Setup supports controlled seaweed cultivation experiments, enabling structured testing, parameter optimisation and informed decisions for further scaling.
VALUEFARM Towers
Scaling Seaweed Production from Research to Pilot Scale
The VALUEFARM Towers provide a controlled, land-based cultivation system designed to scale seaweed production from laboratory research to pilot-level volumes, while maintaining consistent growth conditions.