Knotless mesh protects the fish
Knotless netting is gentle on skin and scales, strong for its weight — the right construction for live-fish duty.
Fishing Nets
Nets for every job on the farm — knotless nylon fishing nets and HDPE aquaculture netting for cage liners, seine/harvest nets and cast nets, in graded mesh sizes from fingerling to grow-out, UV-treated and rot-resistant for long service in fresh and salt water.
- MaterialKnotless nylon (PA) / HDPE / PE
- Mesh~8–40 mm graded
- TreatmentUV + rot-resistant
- TypesCage liner · seine · cast
ISO 9001 CE OEM / ODM
15+ years in aquaculture engineering · Trusted by Japfa Group, Japan Nissui & Tropo Farms · Shipped worldwide in one container
Product Description
Mesh Size: 10mm-1000mm
Knot Type: double knot
Selvage: Single selvage,double selvage or others
Color: As your requirement
Depth: As your requirement
Length: As your requirement
Setting: Depthwise stretch setting, lengthwise stretch setting, or others
Advantage:
Made From High-Quality PA Nylon Raw material, Durable Line, and High Strength.
Advanced equipment to guarantee high quality.
High-efficiency Production to reduce the delivery time
High quality, competitive price, efficient service
Video of Product
Application
Package and Shipment
Specifications
Models & configuration
Materials and mesh ranges are the standard production options — every net is made to size, mesh and material per order.
| Net types | Cage liner nets / seine (harvest) nets / cast nets / dip & grading nets |
|---|---|
| Material | Knotless nylon (PA) / HDPE / PE monofilament |
| Mesh size | Fingerling ~8–15 mm · grow-out 20–40 mm (by species and stock size) |
| Treatment | UV-treated, rot- and mildew-resistant for long outdoor life |
| Edges | Rope-bordered top/bottom lines, lead-line weighting as required |
| Colours | Black / green / blue (common) |
| Water type | Freshwater / seawater |
| Options | Cage-liner nets made to cage size, predator/bird nets, fine-mesh fry netting |
System composition
UV-treated for long outdoor life
UV and anti-rot treatment gives long service in fresh and salt water, season after season.
Mesh graded to the stock
Fine mesh for fry and fingerlings, larger mesh for grow-out — specified by species and size.
Every net job covered
Cage liners, seine/harvest nets, cast nets and dip/grading nets from one production line.
Made to your cage size
Own production builds liner nets to round or square cage dimensions, so re-netting is a straight swap.
One source with your cages
Produced alongside SIGMA's floating cages and feeders — re-net cages and replace harvest gear from the same manufacturer.
Application
- Cage liner nets for floating cages (re-netting and replacement)
- Seine / harvest nets for draining and harvesting ponds
- Dip and grading nets for sorting and transferring stock
- Cast nets for sampling and capture
- Predator and bird protection covers
Video
Fishing Nets
FAQ
Frequently asked questions
What types of nets does SIGMA make?
Knotless nylon and HDPE nets for cage liner nets, seine / harvest nets, and cast / drag nets, in graded mesh sizes from fingerling to grow-out.
Why use knotless netting?
Knotless mesh is gentle on fish skin and scales, strong for its weight, and UV-treated and rot-resistant for long outdoor life in fresh and salt water.
How is the net mesh sized?
Mesh is graded by stock size — fine mesh for fry and fingerlings, larger mesh for grow-out — and edges are rope-bordered and weighted as required.
Can nets be made to fit my cages?
Yes — netting is produced by size, mesh and material to order, alongside the floating-cage line so a farm can re-net cages and replace harvest gear from the same manufacturer.
Related equipment
Related equipment
Float Cage
HDPE floating fish cages & net pens for lakes, reservoirs & sea farming — durable frames, wave-resistant floats, custom sizes. Factory-direct from SIGMA. Get a quote.
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Feeding machines
Automatic & smart fish-feeding machines for ponds, cages & RAS — programmable timing, even broadcast, saves labor & feed. Multiple capacities from SIGMA. Get a quote.
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Fish Shrimp Feed
High-protein floating & sinking feed for tilapia, shrimp & carp — optimized FCR, stable in water, full size range. Bulk aquafeed supply from SIGMA. Request details & a quote.
View details →Request a tailored quote
Tell us your species, target density and site — our engineers size the system and reply within one business day.
Fishing Nets Request a Quote