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

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.
— Simon, Dansk Tang

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

Get in touch.

Talk to one of our experts.
We would love to help!

info@purealgae.dk
(+45) 60 535 642