Aluminum Bottom Trawler

This 19.9 m trawler adopts stern bottom trawling layout. The hydraulic system is sized for sustained towing, fast shooting and reliable haulback under commercial fishing cycles.

Standard trawling package for 19.9 m version:

• Hydraulic double-drum trawl winch, rated pull 8 t, hauling speed 12 m/min
• Wire rope capacity: 1200 m × 14 mm warp per drum
• Heavy-duty stern gallows, net guide rollers, tail block and net ramp
• Single bottom trawl setup as standard; twin trawl configuration optional
• Dedicated hydraulic power unit matched to winch and deck machinery
• Navigation & fish-finding suite: GPS, AIS, VHF, 24 nm radar, echo sounder, fish finder, net depth sensor, net monitoring system

Standard deck workflow:
1.Shoot net → Monitor net depth and door spread during towing
2.Haul back via hydraulic winch
3.Land catch onto anti-slip working deck
4.Sort catch and transfer into insulated fish hold
Winch GA drawing, hydraulic schematic and load calculation will be provided for client approval before production.  

The vessel features a 22 m³ insulated fish hold designed to maintain catch quality during storage and transport. Three preservation options are available to suit different fishing operations:

Insulated Hold: Suitable for inshore trips of 18–24 hours without mechanical refrigeration.
RSW Chilled Seawater System: Maintains water temperatures at 0–4°C, making it suitable for shrimp and white fish.
Blast Freezing System: Features a 12 m³ freezing zone capable of reaching -22°C for multi-day offshore trips.

An optional 4 m³ live fish tank with continuous water circulation and aeration is available for transporting live crab and demersal fish. 

Hull and superstructure built from 5083-H116 aluminum alloy.

Design Highlights:

• Hull form: Round bilge design balancing trawling stability and towing resistance
• Draft: Standard 1.35 m; shallow-draft variant down to 1.0 m available for tidal estuaries
• Construction standard: Built to CCS rules for fishing vessels
• Sea keeping: Rated for routine trawling up to Beaufort 5
• Welding & inspection access: Layout reserved for NDT, inspection and repair 

This aluminium bottom trawler can be configured to suit local fishery regulations, target species and fishing methods.

Shrimp Trawling: The vessel can be fitted with a 5–8 t pulling winch, low-drag trawl nets and a refrigerated seawater (RSW) hold to keep the catch fresh.

Demersal Fish Trawling: For bottom-fishing operations, the vessel can be equipped with an 8–12 t pulling winch, heavy-duty gallows and a chilled or frozen fish hold.

Crab Fishing: A dedicated sorting bench, live holding tank and reinforced deck fittings can be provided for combined pot and trawl fishing.

Inshore Day Trips: With a shallow draft of 1.0–1.35 m and a fuel capacity suited to daily operations, the vessel can work in coastal waters and return to port the same day.

Medium-Range Offshore Trawling: For longer trips offshore, the vessel can be fitted with larger fuel tanks, a freezer hold and the required safety equipment, with CCS survey arranged as specified.

We deliver fully customized vessel solutions based on client operational and technical requirements. 

Our yard is equipped for aluminum commercial vessel construction with IPG laser cutters, Hypertherm plasma cutters, CNC bending machines and KEMPPI / Fronius dedicated aluminum MIG welders. All welders hold valid marine welder qualifications.

Documents & inspection items supplied for every vessel:

5083-H116 plate mill test certificates with heat traceability

Complete WPS / PQR package and welder qualification records

Mandatory NDT (UT + MT) on critical structural and load-bearing welds

Classification survey attendance including stability test, sea trial and load test

Reference lead time (counted after GA drawing and equipment list approval):

6–18 m: 35 working days

18–30 m: 60–90 working days

30–50 m: 120–180 working days

Commercial & Delivery Terms:

MOQ: 1 unit, single vessel orders accepted

Payment: Initial payment for design and material procurement; progressive payment during fabrication; balance settled before shipment

Incoterms: FOB / CFR / CIF

Transport: Road truck delivery for vessels under 12 m; deck cargo sea shipment for larger hulls

Sea trial: Included in scope. Client or third-party surveyor welcome to attend

Warranty:

Aluminum hull structure: 2 years from delivery

Hydraulic deck machinery & electrical systems: 1 year

Fittings, sensors and valves: 6 months

Main engine, generator, gearbox and imported components: OEM manufacturer warranty

Warranty excludes unauthorized modification, overload operation, collision damage and force majeure.