Proline 4 inch Gold Dredge
Proline 4 inch Gold DredgeProline 4 inch Gold DredgeProline 4 inch Gold Dredge
Proline 4 inch Gold Dredge
Item #:proline4inch
Regular price:$4,650.00
Choose configuration:
Availability:Contact us for availability
Product Description:
contact us for availability

Also see our full line of Keene Engineering gold dredges.

The full line of Proline Mining gold dredges and dredging accessories are available by special order.


Video shows Proline 5" dredge with HP 500 pump, 9hp GX-270 Honda Motor.

Proline Mining - 4" Gold Dredges

"The most popular suction dredge on the market just got better!"

4" dredge w/GX160 & HP350 pump (NO AIR) $4180
4" dredge w/GX160, HP350 pump & T-80 Air $4590
4" dredge w/GX200, HP400 pump & T-80 Air $4790
4" dredge w/GX200, HP400 pump & PCA10 Air $5075

For decades the 4" suction dredge has been the overwhelming choice of gold dredgers. The light weight, portability, and affordability of the 4" has always made it appealing, both to the weekend gold prospector and the serious dredger alike. Small enough to be slid onto the back of a pickup, light enough to be packed into remote areas, the 4" dredge makes an excellent one man dredge.

Ask most experienced dredgers, and you'll probably hear that it is the smallest dredge really capable of putting in a full day of serious dredging. The popularity of this dredge makes it a very competitive market for dredge builders, and we have worked very hard to ensure that the Proline 4" suction gold dredge stays ahead of the pack.

Extensive testing over the last two years has resulted in a more refined and efficient machine. This dredge has been equipped with a new pontoon design which has increased stability and weight capacity, while remaining compact and lightweight. The dredge frame remains the same as the previous model. It's a sturdy, bolt-together design which allows the dredge to be disassembled into smaller components for ease of transport into remote locations. Assembling the dredge requires only a few hand tools.

The dredge can be equipped with either the Honda 5.5 horse power engine and HP 350 pump (shown) or the new GX200 high horse power engine, and our hot new HP 400 pump for additional power.

The new HP 400 is an extremely efficient 3" x 2" pump with a high flow, "progressive bite" five vane impeller. This is the only pump in the industry designed specifically for the 4" size dredge. We highly recommend this engine and pump combination for anyone who dredges to greater depths or at higher altitudes.

Of course, this model retains our famous "sure-flow coupler" which essentially eliminates all surface rock jams. This unique one-piece jet flair assembly not only eliminates countless hours of down time unplugging jams, but is approximately half the weight of our competitors designs, and the thick polyethylene plastic jet usually outlasts conventional steel power-jets by four to five times!

We've also kept the highly acclaimed "wave classifier" which has proven to greatly enhance fine gold recovery, while eliminating the problems associated with processing low grade black sands. The "wave classifier" develops a pulsing or jigging action which prevents the dredged materials from loading up in the front portion of the sluice box.

By shedding the low grade particles, the fine gold can drop out of suspension earlier and accumulate under the classifier, where it is safe from the turbulence and disturbance caused by the larger rocks traveling through the sluice. The rear portion of the sluice box utilizes "Hungarian" riffles for maximum efficiency and the dredge is equipped with "Nomad" matting for the ultimate in fine gold recovery. With these latest advancements, we're confident our 4" dredge will continue to be "the most popular dredge on the market!"

Shipping is NOT included - please call or email with your city, state and zip code for a no obligation quote. Orders placed without having a freight quote provided in advance will have freight charges added.

Dredge Specifications
Engine Honda 5.5 hp
Intake hose 2-1/2" x 36" Pump HP 350
Flotation .. 4 Polyethylene floats 13" x 46" x 74"
Sluice box 16" x 48"
Capacity Up to 12 cubic yards per hour
Footvalve Proline 2-1/2" (steel)
Air Compressor T-80
Dredge hose 4" x 15 ft
Weight 208 lbs
Pressure hose 2" x 72"

Delivery info: This unit is in very high demand and subject to unannounced back-order. Delays of 2-4 weeks are common. If you require delivery by a certain date you are required to inform us at time of order. These units are only made upon order and are considered special order items. We are charged in advance by the mfg. for these items. As such, you will be charged in advance as well to secure your place in line for shipment. There will be no cancellations of orders due to delivery time issues unless you inform us in writing of a need by date in advance. Please plan your purchase accordingly and allow extra time for delivery.

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