2,000–12,000
Hopper capacity, m³
25+ years
Years focused on TSHDs
30+ vessels
Vessels delivered
Owner-nominated
Classification society
01 — Why a Specialist Yard
A TSHD is not a hull with a pump bolted on. Hopper form, drag-arm loads, overflow systems, bottom doors and dredge layout determine operating efficiency and continuous performance in the fairway.
At Southeast Marine, a specialist TSHD team handles design, construction, equipment installation and sea trials.
02 — Design Series
Select a series by soil type, haul distance and reclamation method. Figures below are nominal design baselines; contract design prevails.
1 / 5
Engineered for shallow-draft coastal maintenance, port channel desilting and land reclamation.
Single draghead, one inboard pump, bottom doors.
03 — Key Equipment
Built around intelligent dredging and electric propulsion, with hull and systems optimised for TSHDs — dig, load, haul and discharge in one efficient loop.
High-wear materials with draghead and jetting matched to soil type — higher digging efficiency, less wear and longer service life.
Wear-resistant flow parts; head and efficiency matched to duty — fewer blockages and less excess wear.
AI-assisted intelligent dredging optimises dig, load, haul and discharge in real time — higher output, less idle work.
Pipework designed with the hopper; shore and rainbow modes switch on demand — less rework and downtime.
Critical welds X-ray inspected; full-ship strength and tightness built for continuous dredging loads.
One-driving-two electric propulsion for higher efficiency, lower energy use and faster response to changing duties.
04 — How a Vessel Is Delivered
From requirements brief to sea trials, design, construction, equipment installation and trials are completed inside Southeast Marine.
Soil type, haul distance, reclamation site, flag state and classification society fixed at the outset so design boundaries are clear.
Hull lines, hopper, pump curves, drag-arm loads, weights and the crew complement required for this vessel.
Drawings submitted directly to the classification society you nominate; plan approval and class proceed as specified by the owner.
Cutting, block assembly and full hull closure in dock for continuous structure and strength.
Pumps, pipework, hydraulics, bottom doors and dredging systems installed in positions reserved in the steel.
Dock trials, loaded trial dredging and crew familiarisation completed before delivery.
05 — Applications
Reclamation
From borrow area to shoreline. Hopper capacity and discharge distance are the core competitiveness.
Maintenance
Self-propelled, no anchors. Load, clear the fairway, discharge, then return.
Capital works
Port expansion and channel capital dredging — matched hopper capacity, completed in one campaign.
06 — Contact
Fill in soil type, haul distance, flag state, classification society or any custom requirements. We will contact you promptly and proceed to contract design after confirmation.
For TSHDs, choose Southeast Marine.
Zhongsheng Port Channel Southeast Marine Engineering Co., Ltd.
