1870 Photos / 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.

Principal Dimensions and Particulars
Specifications
Calculated Production Curve     

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
			Metric	English
GENERAL	Hull Length		25 m	82 ft.
	Hull Width		8.23 m	27 ft.
	Hull Depth		1.83 m	6 ft.
	Mean Operating Draft		1.22 m	4 ft.
	Ladder Length		19.5 m	64 ft.
	Center Tank Weight (complete with machinery		59,000 kg	130,000 lbs
	Spud Length		20.4 m	67 ft.
	Fuel Storage Capacity		29,900 L	7,900 gal
DIGGING DEPTH 50 ft (15.2 m)	Maximum channel width  @ 40° Swing each side CL	@ Min DD	46.3 m	152 ft.
		@ Max DD	37.2 m	122 ft.
	Minimum channel width (with hull grounded) @ Min DD		24.1 m	79 ft.
			24.1 m	79 ft.
PRIME MOVERS	Dredge Pump Diesel Engine, CAT 3512 DITA		955 kw	1,280 HP
	Auxiliary Diesel Engine CAT 3408		354 kw	475 SHP
	TOTAL		1,309 kw	1,755 SHP
CUTTER MODULE	Cutting Force		6,759 kg	14,900 lbs
	Cutting Force per linear unit of blade		71 kg/cm	400 lbs/in
	Cutter Diameter		1,372 mm	54 in
	Cutter Shaft Diameter		149 mm	5.87 in
	Cutter Speed Range		18-27-36 RPM
	Cutter Power		186 kw	250 SHP
LADDER HOIST WINCH	Line Pull - Second Layer		11,566 kg	25,500 lbs
	Line Speed - Second Layer		30.5 m/min	100 ft./min
	Wire Size		22 mm	7/8 in
	Ladder Hoisting Speed		14 m/min	46 ft./min
	Shaft Power		41 kw	55 SHP
DIRECT LINE SWING WINCHES	Line Pull - Second Layer		8,165 kg	18,000 lbs
	Line Speed - Second Layer		29 m/min	95ft/min
	Wire Size		19 mm	3/4in
	Drum Capacity		137 m	450 ft.
SPUD WINCHES AND SPUDS	Line Pull - Second Layer		13,608 kg	30,000 lbs
	Line Speed - Second Layer		7.9 m/min	26 ft/min
	Wire Size		22 mm	7/8 in
	Spud Outside Diameter		610 mm	24 in
	Spud Weight (50' DD)		6,913 kg	15,240 lbs

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.

 

Specifications - "DRAGON®" Model Series 1870

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.

" DRAGON®" Model Series 1870 - 20" (508mm) I.D. Pipeline
(enlargement)

Note:  Calculated output curves indicate pumping capability only.  In actual practice the material varies from free flowing, easily excavated material to compacted and/or difficult excavations.  When used for estimating actual outputs, the nature of the material must be considered. Consult Ellicott® for other dredging conditions outside these curves.

For material in-situ values other than 2.1, see conversion below.