HDPE Fish Cage

The HDPE (High-Density Polyethylene) fish cage is a modern marine aquaculture facility made of high-strength, corrosion-resistant HDPE material. It features excellent wave resistance, aging resistance, and environmental friendliness with no pollution. The structure is lightweight yet sturdy, and can be assembled into round or square floating net pens to suit different water environments. The HDPE fish cage effectively resists typhoons and wave impacts while minimizing its impact on the marine ecosystem. It is widely used for farming high-value fish species such as salmon and grouper, significantly improving farming efficiency and safety.

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Introduction

The HDPE (High-Density Polyethylene) fish cage is a modern marine aquaculture facility designed for deep-sea and offshore farming. It adopts high-quality HDPE material, featuring excellent wave resistance, aging resistance, and environmental friendliness with no pollution. The structure is lightweight yet sturdy, and can be assembled into round or square floating net pens to suit different water environments.

Product Name: HDPE Fish Cage

Material: High-strength, corrosion-resistant HDPE

Structure Type: Round or square floating net pens

Key Features: Wave resistance, aging resistance, eco-friendly

Weather Resistance: Effectively resists typhoons and wave impacts

Target Species: Salmon, grouper and other high-value fish

Application: Marine aquaculture, deep-sea farming

Advantages: Minimizes marine ecosystem impact, improves farming efficiency and safety

Customization: Available in various sizes and designs

Parameter

Square Floating Cage frame specifications:

Length*Width(m)	Floating pipe Dia(mm)	Handrail pipe Dia(mm)	Stand pipe Dia(mm)	Bracket Dia(mm)	Distance of the brackets(m)
2*2	200	90	110	200	2
3*3	200/250	90/110	110/125	200/250	2
4*4	200/250	90/110	110/125	200/250	2
5*5	200/250	90/110	110/125	200/250	2
6*6	200/250	90/110	110/125	200/250	2
7*7	200/250	110	125	200/250	2
8*8	315/350	110	125	315/350	2
9*9	315/350	110/125	125/Bracket	315/350	2/2.5
10*10	315/350	110/125	125/Bracket	315/350	2/2.5
12*12	315/350	110/125	125/Bracket	315/350	2/2.5
15*15	350/400	125	125/Bracket	350/400	2.5
20*20	450/500	140/160	125/Bracket	450/500	2.5/3
30*30	500/600	160	125/Bracket	500/600	3/3.5

Round cage specification:

Cage Models	200	250	315	350/400	450/500/600
Cage Circumference (m)	30-60	40-80	60-120	120-160	160-260
Farming Area (m2)	70-286	127-509	286-1146	1146-2037	2037-5379
Be placed in Water Depth(m)	-5 to -60	-5 to -60	-5 to -60	-5 to -60	-5 to -60
Floating Pipe Diameter(mm)	200	250	315	350/400	450/500/600
Handrail Pipe Dia (mm)	90	110	125	125	140/160
Handrail Upright Dia (mm)	110	125	125/Bracket	Bracket	Bracket
Bracket Type	Split	Split	Split/ One-piece with Handrail Upright	One-piece with Handrail Upright	One-piece with Handrail Upright
Distance between Brackets(m)	2	2	2	2.5	2.5
Materials Used	PE100	PE100	PE100	PE100	PE100
Foam Added	Only Floating Pipe	Only Floating Pipe	Only Floating Pipe	Only Floating Pipe	Only Floating Pipe
Available with Sinker Pipe	Yes	Yes	Yes	Yes	Yes
Available with Walkway Decking	Yes	Yes	Yes	Yes	Yes
Available with Net	Nylon /PE/HDPE	Nylon /PE/HDPE	Nylon /PE/HDPE	Nylon /PE/HDPE	Nylon /PE/HDPE

Application

1.Open ocean & sheltered bay farming

Withstands strong currents, high waves, and typhoons; suitable for both coastal and offshore sites.
2. Full-cycle grow-out of premium fish

Used from juvenile to harvest size for species like salmon, grouper, seabass, and cobia.
3. Modular & low-maintenance system

Easy to expand, relocate, and clean; reduces net wear and biofouling for lower operating costs.