
Seaweed processing equipment · engineered & built in-house
Seaweed Processing Equipment
Sirputis designs, fabricates and commissions seaweed processing equipment in stainless steel — from single machines to complete processing lines and modular biorefineries, automated with our own PLC/HMI control and commissioned where the seaweed is.
40+ machine types · in-house PLC/HMI automation · commissioned on site · first quote reply within one business day
6,000 t/ylargest delivered line — Hammerfest, Arctic Norway · see delivered plants & funded projects →
40+machine types, designed & built in-house
24–48 hthe freshness window every line is engineered around
1 dayfirst reply on any budget quotation request
Wet seaweed processing equipment
Fresh seaweed degrades within 24–48 hours, so the wet line does the time-critical work: receival, washing and de-sanding with recirculated freshwater, screw-press dewatering tuned to species and product path, blanching and iodine reduction, and stabilisation for storage or transport. Explore the full wet seaweed processing range.
Seaweed drying and milling equipment
Low-temperature drying protects the compounds your market pays for. We build belt dryers and drum dryers, two-stage shredder-grinder lines for wet biomass, and mills that take dried seaweed to specification. See the dry seaweed processing range.
Extraction & biorefinery equipment
For alginate, biostimulants, fucoidan and specialty extracts we deliver containerised extraction units (Biostim 500 and Biostim 2000) and biostimulant process equipment — standardised units, engineered once and replicated site by site. Read how complete plants fit together in the modular seaweed biorefinery guide or see biostimulant equipment.
Conveyors, feeders and materials handling
Lines live or die on flow: feeding conveyors, double screw feeders, dosing and weighing, elevating and buffering conveyors, tanks and lifting systems — all matched to wet, heterogeneous seaweed biomass.
Cultivation & harvest-side equipment
Upstream we build mechanised seeding machines (3 km of grow line per hour, commercially tested with Ocean Rainforest in the EU SeaMark project), cultivation rigs and our patented seaweed harvester. See seeding and harvesting solutions.
Popular machines

Screw presses
SP-series dewatering, tuned to species and product path.

Shredder-grinder line
Two-stage size reduction for wet biomass.

Double screw feeder
Even, controllable feed into every next step.

Washer & elevator
Recirculated freshwater; sand and stones out.
Prefer the whole thing at once? See complete processing lines — or assemble your own on the front-page configurator.
Planning a plant? Start with engineering.
Feedstock, volume and target products in — process flow, footprint, utilities and an itemised budget quotation out. First reply within one business day.