Self-propelled diesel dredges can dredge about anywhere without cumbersome cabling

Rotomite-6000 Capabilities

                                  rotomite

  The Rotomite-6000 offers a range of Performance Capabilities

Provides customers with the "BEST VALUE."

  • Dredging Depth. 20 feet standard (up to 40 feet optional)
  • Cubic yards of sludge processed per hour. Up to 150 cubic yards
  • Discharge volume. 2,500 gallons per minute @ 80' TDH (water)
  • Dredging Speed. Up to 19 feet per minute
  • Width of dredging Cut. Up to 7.5 feet
  • Cutterhead Torque. Up to 11,000 inch/lbs.
  • Draft. 27 inches
  • Discharge distances and variables. **Pumping sludges and slurries.
**An important feature of SRS Crisafulli’s hydraulic dredges is their ability to pump dredged sludges and slurries over substantial distances to remote disposal sites.

The actual distance in a particular application depends on several variables including: the nature of the slurry – i. e., the specific gravity, weight, and concentration of solids in the slurry, the model and power of the dredge, the size of the discharge pipe, the topography of the land over which the slurry is pumped – i. e., vertical elevation change from the dredge to the discharge site, whether or not a booster pump is installed in the discharge line, and, perhaps most importantly, the experience and skill of the dredge operator.

SRS Crisafulli offers consulting services, at no cost to the customer, by its experienced engineers operating from the Glendive, MT Factory address during the sales process to properly specify and size its dredges for the customer’s planned application.

If a site visit is required to properly specify a dredge for the customer’s application, travel and per diem charges may be necessary. SRS Crisafulli typically provides dredge customers worldwide with installation and training services by experienced Factory technicians as part of the standard specifications of a dredge sale.

rotomite

Contractors, Municipal and Industrial Facilities Managers remove settled solids fast and easily with the powerful and versatile Rotomite-6000.

More power. 275 HP provides the power and productivity for all of the systems on the Rotomite-6000. The John Deere engine enables simultaneous operation of all dredge functions.

Operator cab. The operator cab (with optional air and heat) mounted forward on the dredge for excellent visibility, is accessible from either side of the dredge for convenience, productivity and safety.

Improved controls. Crisafulli engineers designed fingertip operator controls to reduce operator fatigue and improve operator alertness and productivity.

Cutterhead. Dual hydraulic motors deliver 11,000 inch-pounds (1243Nm) of digging torque to Crisafulli's new Cobra Cutterhead. The Cobra Cutterhead combines aggressive hardened teeth with a unique opposing auger design to drive dredged material towards the center of the cutterhead and directly in front of the pump intake for maximum capture of solids, high efficiency and reduced turbidity.

The operator can articulate (rotate 84 degrees) the cutterhead to keep the cutting teeth at right angles to the face of the dredged material.

The hydraulically powered ladder, applies almost the full 18,000 pound weight of the Rotomite-6000 to attack compacted, settled wastes.

steerable propulsion system

Steerable propulsion system on stern of Rotomite-6000

portable rotomite

Portability - On Land - Afloat. With a width of 8.5 feet and a height of 9.58 feet (without the Pivoting Traverse System) Contractors and Facilities Managers can move the Rotomite-6000 at high speeds on highways on a lowboy and meet all DOT regulations regarding vehicle weight, width and height. This feature is important for any customer who must dredge multiple sites at different locations.

rotomite

Great visibility. Note the Operator's clear view of dredging operations from the forward positioned cab with large windows on all four sides shown above on the Rotomite-6000. The new cab (withoptional air and heat) is accessible from either side of the dredge for improved convenience, productivity, and safety.

Cobra Cutterhead. On the right, observe the unique opposing augers of the Cobra cutterhead are designed to drive dredged material towards the center of the cutterhead and directly in front of the pump intake for maximum capture of solids, highest efficiency and reduced turbidity. Fully articulating, the cutterhead can be rotated 84 degrees on the Rotomite-6000 and 70 degrees on the Rotomite-8000 to attack compacted, settled wastes.

Safety guard rails. Note the guard rails on each side of the dredge and flanking the ladder.

See and/or download Rotomite-6000 product brochure in PDF format.

See Rotomite-6000 product video in Quick Time Player format. Due to large file size recommend downloading file to your computer and then play; or contact us to have DVD mailed to you.

Case Histories and Testimonials

Features - Standard Models
Rotomite-6000
Discharge volume - gallons per minute
2500 GPM @ 80' TDH (water)
Engine horsepower
275 @ 2200 RPM
Sludge pump
Crisafulli 6" J-Series
Pump/dredge discharge diameter
6" x 8"
Excavation depth
up to 20 feet (40 feet optional)
Depth control
Dual hydraulic cylinders
Excavation width
7.5 feet (2.29 m)
Excavation speed
up to 19 feet/minute
Spherical solids passage - maximum
3"
Propulsion thrust
Up to 1000 pounds
Propeller
Low speed, high thrust
Propulsion type
Hydraulic outboard
Adjustable steering
Hydraulically controlled
Cutterhead width
8.5 feet (2.59 m)
Cutterhead drive
Dual
Cutterhead torque
11,000 inch/pounds (1243 Nm)
Cutterhead rotation
Bi-rotational
Cutterhead articulation
84 degrees
Cutting teeth
Hardened steel Cobra
Pontoons
Foam-filled, 11 gauge steel
Draft
27 inches (687 mm)
Freeboard
9 inches (229 mm)
Walkway
Non-skid surface
Length (overall)
32.5 feet (9.91 m)
Length (pontoons)
28 feet (8.53 m)
Width
8.5 feet (2.59 m)
Height (maximum) without Pivoting Traverse System
9.58 feet (2.92 m)
Weight (maximum)
18,000 pounds (8,165 Kg)
Lighting
Sealed beam front & rear
Operator's cab
Adjustable seat & steering; heat & air conditioning
Color
Gray standard; white trim
Electrical power
12 VDC
Fuel capacity
140 U.S. gallons (531 liters)
Fuel consumption (maximum)
12.3 U.S. gallons per hour
Instrumentation
Tachometer
Discharge pressure
Engine oil pressure
Engine temperature
Hour meter and Volt meter
Hydraulic pressure
Mechanical depth indicator
Hydraulic oil level & temperature
Controls
Engine speed
Key start; Depth
Sludge pump speed-Forward/Reverse
Propulsion speed - Forward/N/Reverse
Traverse winch - Forward/Reverse
Traverse winch speed
Cutterhead - Forward/N/Reverse
Cutterhead articulation
Options
Cutterhead speed control
Optional hardened pump surfaces for added abrasion resistance
Crisafulli Patented Pivoting Traverse System
Mudshield
Weed-handling cutterhead - auger type
Weed-handling cutterhead - reel type
Liner Protection System - cage, wheels, or both
Ultrasonic flowmeter

Unmatched Versatility

Crisafulli's unique steerable variable speed hydraulically powered propulsion system provides approximately 1,000 pounds of thrust enabling the Rotomite-6000 and its Crisafulli 6" discharge J-Series pump to dredge and process up to 150 cubic yards of sludge and slurries per hour at depths up to 20 feet (standard; deeper in custom models) in a wide range of applications without the cost and delays of a cabled traverse system. Should the operator desire to use a traverse system rather than the Rotomite's self-propulsion feature, Crisafulli's patented Pivoting Traverse SystemTM enables the Rotomite operator to turn the dredge 180 degrees in minutes at the end of each pass without disengaging the cabling system - thereby eliminating down-time and improving productivity up to 48%.

The world's most productive 6" dredge

When used with Crisafulli's patented Pivoting Traverse System, shown above at top of page, and a Cabled Traverse System, the Rotomite-6000 is approximately 48% more productive than competitive products. It can complete lagoon dredging projects in approximately half the time and save owners close to the entire cost of the Rotomite over several years from reduced operating costs.

 

transverse system

See Major Dredge Components

See Rotomite SD110 - smaller, handy-sized, powerful shallow draft

See larger Rotomite 6000C dredge - more powerful, more productive

See Rotomites - self propelled, manned, steerable dredges

See Dredges - All Models