Harvest live sea cucumbers without diving for them.
Collecting sea cucumbers means hours of diving or wading, picking each animal by hand. This concept works the pen floor: a camera finds each sea cucumber, a soft gripper lifts it, and a basket keeps the harvest in water until it is raised.

CONCEPT · NOT TO SCALE
Harvesting a pen is slow, tiring work in the water, and it gets harder in murky water and at depth.
Live sea cucumbers are soft and stress easily. Rough handling lowers quality and price.
We develop each system from problems we see on our own sea cucumber farm in Jaffna.
Sea cucumber harvest arm: four steps, in the intended design.
- Step 01
Lower
The crawler is lowered into the pen on its tether and drives across the floor.
- Step 02
Find
The front camera and lights spot sea cucumbers on the sand and show them to the operator.
- Step 03
Pick
The arm reaches down and the soft silicone gripper closes gently around the animal.
- Step 04
Collect
Each one goes into the basket on the back, which is lifted out when full.
What the Sea cucumber harvest arm is made of.
Pick a part to find it on the model above. Use the exploded view to see inside.
See it in motion.
Rendered from the same 3D model. When we have test footage, it goes here beside the film.
Before it becomes a product.
Each question gets a test and a pass mark agreed with the site owner. Results are published only after the trial.
| Question | How we test it | What “pass” looks like |
|---|---|---|
| Does it harm the animals? | Handle live sea cucumbers in a tank and check them afterwards | No visible injury and normal recovery |
| Can it find them? | Count found against actual on a marked area of pen floor | Finds most animals in the area it covers |
| How fast is it? | Animals collected per hour, against hand collection | Worth running alongside the crew |
| Does it disturb the pen? | Watch silt, the bed and other stock during runs | No lasting damage to the bed or nets |
| Can the crew run it? | Launch, drive and recovery trials with farm staff | Two people can operate it safely |
Design intent, 3D model and test plan.
Tank test: find, grip and lift live sea cucumbers without damage.
Weeks on a working farm with acceptance tests.
Listed with tested performance, price and support.
Show us your farm problem.
- We read itEvery enquiry is acknowledged and reviewed by an engineer.
- Free screening callFit, decision-maker and budget, in 15 to 20 minutes.
- Fixed-fee assessmentIf it fits, you get a quote for a site visit and measurements.