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1870 "DRAGON®" CUTTERHEAD DREDGE

1870 Detailed Specs / Your Dredge Project

Portable Dredge for any standard 18" or 20" (457-508 mm) pipeline
Nominal pump capacity range = 200-1200 yds3/hr (920 m3/hr)

ELLICOTT® DREDGES, POWER-PACKED PORTABILITY
The New "Value-Engineered" Series 1870: Design criteria focused on dependability and low cost with rapid dismantling, mobility, reassembling and start-up; minimizing downtime and ensuring high productivity.

Representative digging depths and dimensions for average dredging service. Configurations for deeper digging readily available - consult Ellicott®.

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1870 Principal Dimensions and Particulars
1870 1870
English Metric
GENERAL Discharge pipe x Suction pipe 20" x 20" 500 x 500
Dredging Depth, maximum 50' 15 M
Length, Overall, with Ladder raised 117' 35.5
Length, Hull 82' 25 m
Width, Hull, including side pontoons 27' 8.2 m
Depth, Hull 6' 1.8 m
Number of Pontoons (tanks) 5 5
Plate Thickness of center pontoon 5/16" 8
Dry Weight 410,000 186,000 kg
Hull Draft, not including spuds 4' 1.2 m
Fuel Capacity 7,900 gallons 29,900 litres
Swing Width, @ minimum Dredging Depth 152' 46.3 m
Swing Width, @ maximum Dredging Depth 122' 37.2 m
ENGINES Main Engine (Caterpillar) 3512 3512
Power 1280 HP 955 KW
Cooling Heat Exchanger Heat Exchanger
Auxiliary Engine (Caterpillar) C-15 C-15
Power 475 HP 354 KW
Rating Tier 3 Tier 3
Cooling Heat Exchanger Heat Exchanger
TOTAL INSTALLED POWER Not including optional Genset 1755 HP 1309 KW
CUTTER DRIVE Power at Cutter Shaft 250 HP 186 KW
Cutter Speed 18-27-36 RPM 18-27-36 RPM
Cutter Diameter 54" 1372
Cutting Force 14,900 6,759
SPUDS Diameter 24" 610
Length 67'-4" 20.4 m
PRODUCTION Capacity Range of Pumping System up to 1200 cubic yards per hour up to 1000 cubic meters per hour

OPTIONAL EQUIPMENT
Accessories and options can be offered with the Series 1870 "Dragon". Included are deckhouse to meet ABS offshore rules, choices of cutters, pump handling equipment, air conditioning or heating, anchor booms, production measuring equipment, and pipeline components.

ELLICOTT® reserves the right to modify equipment in order to provide engineering improvements.

HULL - Five tank design; quick connect/disconnect assembly; machinery in unitized center tank. Outboard pontoon tanks for flotation, ballast, and fuel storage. Hull bottom and side plate is 0.31 in. (7.9 mm); reinforcing up to 3/4 in. (19 mm); all of A36 or equal steel. Approximate operating draft of 4 feet (1.2 m). Deckhouse integral with center tank storage.

DIRECT-DRIVE CLOSE-COUPLED PUMP UNIT - Heavy duty dredge pump is designed and manufactured by Ellicott® for maximum efficiency over a wide range of dredging conditions. Pump case, impeller, liners and throat piece are cast of special 500 BHN chrome carbide abrasion resistant iron. The pump is designed to facilitate maintenance and parts replacement. The close-coupled direct drive features totally enclosed oil lubricated reduction gear and heavy duty roller bearings on the impeller shaft. The pump is directly driven by a Caterpillar diesel engine equipped with heavy duty heat exchanger and oil filters.

HYDRAULIC POWER PACKAGE - Three hydraulic pumps are direct driven by heat exchanger cooled Caterpillar diesel engine. Hydraulic system includes four independent operating loop circuits; one for cutter, one for swing winch, one for ladder hoist, and one for spud winches and control pressure. The engine, hydraulic pumps, gears, cooler and reservoir are all mounted on a common base.

EXCAVATING MODULE AND LADDER - Cutter driven by slow speed, radial piston hydraulic motor. Maximum cutter force available at all speeds. Underwater excavating module features short drive shaft with weight concentrated at the cutter for efficiency. Cutter can be angled down for shallow digging. Excavating module drive recessed inside ladder tube for protection.

LADDER HOIST - Winch directly driven by heavy duty hydraulic motor through totally enclosed planetary reduction gear. It includes hydraulically operated, totally enclosed disc type brake for holding the load.

POWER SWING WINCHES - Individual, single direct line winches, direct-driven by radial piston hydraulic motors, mounted on the aft end of the ladder. Speed and reverse controls at operator's console.

ELECTRICAL SYSTEM - A 120/240VAC/60 HZ AC internal/external lighting and electrical system is powered by belt driven generator driven from the auxiliary engine.

SPUD AND SPUD WINCHES - Two heavy wall, cylindrical steel spuds are mounted in spud keepers at stern. Spuds designed for single-part wire rope bottom lift, and are raised or lowered by individual single drum winches with free-fall clutches.

WARRANTY - Ellicott® warrants its equipment only in accordance with the printed warranty conditions which are normally included in our sales proposals, the latest copy of which will be forwarded promptly on written request. No other warranties are provided.

 

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Ellicott Dredges, LLC | 1611 Bush Street | Baltimore MD 21230, U.S.A.
Toll Free: 888-870-3005 | Phone: (410) 625-0808 | Fax: (410) 545-0293
Email: Sales Department
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