CLICK HERE TO LEARN MORE!

A Complete Range of Machines For Small Scale Dredging Applications

About Rent a Dredge

RentADredge rents small compact dredgers for a short period of time.
Our fleet of mini- dredgers is ideal for hard to access dredging areas where larger equipment cannot operate due to limited access or shallow water.
Our mini-dredgers are particularly effective in removing sand, silt, and black stinky mud that accumulates around boat moorings, pontoons, river docks and waterfront areas.
Silt-laden run-off and mud can choke waterfront areas and pontoons/docks.
Mini Dredgers are the perfect tool for restoring the capacity of the storage capacity of lakes, ponds, and canals.
We know ‘Silt Happens’ but RentADredge can allow you tackle it yourself.

The mini dredge is ideal for:

• Waterfront Property Owners
• Waterfront Contractors
• Marine Maintenance Contractors
• Local Councils
• Earthworks Contractors
• For filling of sand geotextile bags and tubes

Products and Spares

Equipment

• The Mini dredge is a compact, highly portable, petrol-engine powered silt and sediment removal pumping system, designed to provide the homeowner and contractors alike with the ability to excavate and transfer unwanted silt and sediment.

Dimensions

Maximum Size Passing of Pump

Maximum 27mm

Pump can handle up to 27mm solids

Application of the Mini Dredgers

Advantages

• Highly portable – can be moved to site on a standard trailer
• Has integral all-terrain wheels so it can be rolled from the trailer straight into the water.
• Minimal set-up
• Allows the operator to excavate and transfer unwanted sediment and sand efficiently and

Features

• Open, Non-clogging Impellor The open impeller is less likely to clog with solids, but if it does, it is easy to clean
• High Chrome Slurry Pump Impeller ( 26% chrome) with outstanding abrasion resistance
• Pump casing provided with an easy-open inspection cover for cleaning / flushing
• Easy to Clean Pump Chamber

• A safe and stable work platform made from durable and corrosion resistant materials
• Fully hot-dipped galvanised frame,
• Glass reinforced composite decking,
• Silicon carbide pump seals,
• We only use the highest quality Japanese pumps since they are well known for pumping sand and slurries

Pump Specifications

Mini-Dredgers are made from Long-life Components
• Rotomolded Polyethylene floats will last more than 25 years,
• Fully hot-dipped galvanised coating will last more than 15 years
• Dredge designed to have a long working life of many years.

Advanced Materials

• Our mini-dredgers have high chrome iron impellers and silicon carbide shaft seals both of which offer high abrasion resistance and greater performance over other makes.

Spare Parts and Accessories

We also offer a range of spare parts and accessories such as:
• Chrome Impellors
• Dredging Pipes
• Dredging Hose
• Floats
• Geotextile Bags
• Trailers for Transport of the Mini Dredgers

Troubleshooting Guide

Rental Equipment

Rental

Why purchase equipment for a short term job when you can get a dredge rental by the week?
When you are finished with your job simply return the dredge rental equipment.
RentADredge has several sizes of dredge rentals to choose from as well as other dredging equipment.

Rent to Own

RentADredge offers easy dredge rental terms with a minimum of only one week. The rental fleet consists of the latest model equipment with low hours.
Best of all, if you decide to purchase a machine after renting it, a percentage of the rent that you have already paid will be applied toward your purchase.
Contact us for more information and current weekly dredge rental rates.

Frequently Asked Questions (FAQs)

How Far can the Dredge Pump?
• Q1. How far can the Mini dredge transfer sediment?
This depends upon the vertical elevation differential, and the type of sediment. Our smallest mini-dredgers has a pump with a 25 m head so along our slurry pipes it can comfortably pump 100-150 m over fairly flat terrain.
It is important to maintain a minimum discharge velocity (MDV). See below.

Minimum Discharge Velocity
It is important to remember that in order to transport a slurry through a pipe or hose, it must maintain a minimum velocity to prevent the sediment from settling in the hose, eventually forming a restriction or plug.
The term for this is “minimum critical carrying velocity”.
• The rule-of-thumb minimum velocity for mud and sand is 1.5 to 2.0 meters per second. We prefer to utilise a more conservative value of 2.5 meters per second.

Q2. How long will the mini-dredge pumps last?
That will depend upon the type of sediment being pumped, and how often the dredge is used.
Sand is by far more abrasive than mud, and so will wear your pump much more quickly.
The key wear components in the dredge pump are made of highly abrasion resistant materials, are designed to withstand sand abrasion, and are relatively easy to replace with new parts.
If the dredge is used for intermittent cleaning of limited areas such as boat docks, waterfront, canals and channels then one can expect a long time before the pump components wear out.
However, if you are planning to pump sand for 8 hours a day for months, then you need to consider one of our larger dredges.

Q3. Can the mini-dredge be used in salt water?
A3 Salt water operation is fine but you will need to take extra care to flush the pumps and clean the engines with fresh water after every use.
Since the pontoon floats are made of high density polyethylene they are completely resistant to sea water, salt, chemicals, and ultraviolet light.
The pontoon frame has been fully hot-dip galvanised so that is also resistant to corrosion and sea water.
Finally the pontoons are secured to the frame with galvanised fasteners.

Q4. Can the mini dredge handle clay?
Clay can be very sticky and cohesive.
An quick way to determine whether or not your material is suitable for our dredge, is to put a lump of the clay in a glass jar of water and shake it vigorously.
If it does not completely separate in the jar, then it will problematic to get it to flow.

Q5. Will it pump leaves and seaweed?
To a point however our standard suction head has a perforated mesh strainer with 15 mm diameter holes that the material must pass through before entering the suction hose.
Leaves and seaweed will have a tendency to collect on the strainer and starve the pump.
If you have a high percentage of clumps of leaves and seaweed/seagrasses then you would be better off removing the sediment by some other method.

Business Opportunity

Business Opportunity to own and operate your own mini-dredge for removing sand & mud from:
Marinas, Boat Docks, Canals, Ponds & Waterfront Property
Small footprint makes it ideal for desilting around and under pontoons, boat docks, floating docks and wharves.