Used automation

Booster Automation System DWBA-5

Booster Automation System DWBA-5 Our DWBA-5 is a totally automated system. Engine will start at idle and increase speed as needed. Also reduces speed to idle when dredge flow has stopped. The clutch can be engage...

Dredge Velocity Control System DWV-5

This is the main part of our production system. Adding water to maintain velocity ” flow” -decreases production. In dredging, when the density changes the pump rpm also needs to change. If rpm is not adjusted yo...

Flow Regulator Valve DWRV

The original Hoffer valve invention was to control cavitation or a plugging slurry line. With todays technology its use has changed. Many times it is marketed as a production tool and this is misleading. A bypas...

DW-7 Production System

The same software and capability with out some bells and whistles. Unit utilizes smaller screen and enclosure. No Murphy engine monitoring , panel switches or cable tension monitoring. This save our customer 8,0...

Automation DWA-7 Production System

Model DWA-7 Dredge Works Production System In 1985 the concept of velocity control on a dredge was born. In partnership with Toshiba engineers, this system used their VFD drive with a customized flow control ...

Engine Pre/Post Lube System DWPL

Engine Pre/Post Lube System DWPL A good investment for your engine. Pre/post lubrication will prolong turbo and lessen engine and valve train wear. The post lube also cools parts on shut down. System includes hyd...

EIW Underwater pump 16×14 for sale end of 2026

This dredge has been updated and includes new floatation, recent repower C32 cat and C9 cat. Specs Metso 16×14 pump EIW cutter 100 hp 70′ Truss ladder c32 Cat main c9 cat aux Pullmaster 25 &12 New floatation Dred...

DWUW-12 -14 -16 / Dredge from 60′ to 90′ deep

DWUW-12-14-16 Dredge Works underwater dredge. This is a proven well engineered design with many years of operation. You can choose your power source. We have produced electric, diesel and natural gas powered dr...

Factory Aquatic Plant Harvester/Water Weed Machine for Sales

• Manufacturer: Relong
• Model: RL900

Factory Aquatic Plant Harvester/Water Weed Machine for Sales Product Description Relong aquatic weed harvester is usually used in river,reservoir,canal and coasts for cutting, collecting, storing and tranporting ...

Algae/Water Hyacinth/Floating Debris/Weed Boat Collection Vessel

• Manufacturer: Relong
• Model: RL-AWH700

AQUATIC WEED HARVESTER&TRASH SKIMMER AMPHIBIOUS HARVESTER MULTIFUNCTIONAL DREDGER REMOTE CONTROLLED LIFEBUOY Algae/water hyacinth/floating debris/weed boat collection vessel RELONG AQUATIC...

9000 m³/h Trailing Suction Hopper Dredger (TSHD)

• Manufacturer: Julong

The 9000 m³/h Trailing Suction Hopper Dredger is a high-capacity, heavy-duty vessel designed for large-scale dredging projects, including ports, channels, rivers, and land reclamation. It provides maximum dredgin...

High Capacity Cutting Machine Aquatic Plant Harvester for Lake Surface

• Manufacturer: Relong
• Model: RL900

High Capacity Cutting Machine Aquatic Plant Harvester for Lake Surface Product Description Relong aquatic weed harvester is usually used in river,reservoir,canal and coasts for cutting, collecting, storing and tr...

Multifunctional Aquatic Weed Harvesters with Cutter Head/Aquatic Plant Harvester/Weed Harvesting Machine for Sale

• Manufacturer: Relong
• Model: RL-AWH

AQUATIC WEED HARVESTER&TRASH SKIMMER AMPHIBIOUS HARVESTER MULTIFUNCTIONAL DREDGER REMOTE CONTROLLED LIFEBUOY Multifunctional Aquatic Weed Harvesters with Cutter Head RELONG AQUATIC WEED HA...

6500 m³/h Trailing Suction Hopper Dredger (TSHD)

• Manufacturer: Julong

The 6500 m³/h Trailing Suction Hopper Dredger is a versatile vessel built for medium-scale harbor, coastal, river, and reclamation projects. It delivers stable performance, strong suction capability for medium to...

Hot Sale Small Aquatic Plant Harvester Weeding Cutting Floating Rubbish

• Manufacturer: Relong
• Model: RL900

Hot sale small Aquatic Plant Harvester Weeding Cutting Floating Rubbish Cleaning Boat Machine Product Description Relong aquatic weed harvester is usually used in river,reservoir,canal and coasts for cutting, col...