Horizontal Dredge Specs

Built to meet or exceed your requirments

VMI builds dredges in a variety of sizes and configurations. Below are some of more common models and options, however, we can custom build a machine to meet your exact requirements.

Dredge Options

We offer many options and accessories to outfit your dredge.
If you have a need for something you don’t see, then give us a call to see what we can do for you!

  • Air Conditioning
  • Auger Heads
  • Tilting Cutter Heads
  • Electric-Hydraulic Dredges
  • Fully Electric Dredges
  • Remotely Controlled Dredges
  • Power Units
  • Gage Wheels to Protect Liners / Bottom Surfaces
  • GPS Systems
  • Side Casters
  • Stereos & Radios
  • Anchor Systems
  • Cable Harness Packages

Specs - Standard Cable Drive Horizontal Cutter Dredges

MD-415

MD-615

MD-815

GENERAL

Length

33′ 6″ (10.21m) O.A.

37′ 6″ (11.43m) O.A.

38′ 6″ (11.73m) O.A.

Height (without A/C)

8′ (2.44 m)

8′ 6″ (2.59 m)

8′ 10″ (2.69 m)

Width

8′ 6″ (2.59 m) transport

9′ (2.74m) transport

9′ 11″ (3.02 m)

Weight (Approx.)

20,000 lbs (9,100 kg)

23,000 lbs (10,400 kg)

26,500 lbs (11,800 kg)

Draft

+ 22″ (55.88 cm)

+ 22″ (55.88 cm)

+ 25″ (63.5 cm)

Fuel Capacity

160 U.S. gallons (606 L)

244 U.S. gallons (923 L)

325 U.S. gallons (1230 L)

ENGINE

Type

Cummins

Cummins

Cummins

Model

QSB 6.7

QSC 8.3

QSL 9

Power

173BHP (129kW) @ 2500 RPM

260BHP (194kW) @ 2200 RPM

325BHP (242kW) @ 2100 RPM

PUMP

Type

Hi-chrome cast iron, centrifugal, recessed Impeller

Impeller

18″ (45.72 cm)

22″ (55.88 cm)

25″ (63.5 cm)

Suction

4″ (10.16 cm)

6″ (15.24 cm)

8″ (20.32 cm)

Discharge

4″ (10.16 cm)

6″ (15.24 cm)

8″ (20.32 cm)

Capacity

(water @ 68F / 20C)

3.75″ (95 mm) Sphere – Variable to

1000 gpm (3,785 L/min) @ 130′ (39.6

m) head @ 1400 RPM

5.75″ (146 mm) Sphere – Variable to

2000 gpm (7,570 L/min) @ 140′

(42.7 m) head @ 1140 RPM

7.75″ (196 mm) Sphere – Variable to

3000 gpm (11,355 L/min) @ 140′ (42.7

m) head @ 1030 RPM

CUTTER ASSEMBLY

Type

Horizontal with full-width, flow-through suction (Paddle or cutting teeth available)

Size

8′ 6″ (2.59 m) wide x 21″ (53.34 cm)

diameter

9′ (2.74 m) wide x 21″ (53.34 cm)

diameter

9′ 11″ (3.02 m) wide x 21″ (53.34 cm)

diameter

Speed

Variable 0-80 RPM (forward and reverse)

Torque

30,348 in-lbs. (3,429 N∙m)

Operating Depth

Variable to 15′ (4.57 m) maximum (optional depths available upon request)

PONTOONS

Dimensions

Two – 32″ (81.28 cm) x 34″ (86.36

cm) x 29′ 6″ (8.99 m)

Two – 32″ (81.28 cm) x 34″ (86.36

cm) x 33′ 6″ (10.21 m)

Two – 34″ (86.36 cm) x 40″ (101.6 cm) x

34′ 6″ (10.52 m)

Description

10 gauge steel, integral bulheads and stiffeners, formed for rigidity, cora-foam filled

PROPULSION

Type

Treble sheave hydraulic winch

Traverse Speed

Variable 0-50 ft/min (0-15.2 m/min)

Cutting Speed

0-15 ft/min (0-4.57 m/min)

HYDRAULIC SYSTEM

Pumps

Three – variable displacement, axial piston / One – fixed displacement

Motors

Fixed displacement

Capacity

Total, 80 GPM (302.8 L/min) @ 2200

RPM

Total, 130 GPM (492.1 L/min) @

2200 RPM

Total, 170 GPM (681.3 L/min) @ 2200

RPM

Reservoirs

100 U.S. gallons (378.5 L)

DRIVE

Description

Hydraulic pump drive, direct from engine

FILTERS

Description

Protected hydrostatic loop, high pressure suction & return

RELIEF SETTINGS

Centrifugal Pump

4000 psi (276 bar)

Cutter Head

3000 psi (207 bar)

Accessories

3000 psi (207 bar)

Boom

1500 psi (103 bar)

ELECTRICAL SYSTEM

Alternator

Output – 100 amp

Battery

Heavy Duty – 12 volt

PRIME FINISH

Lower Structure

Shear Tar Epoxy Paint

Upper Structure

Blue and White Epxoy Paint

* Please note, specs are subject to change

Specs - Self Propelled Horizontal Cutter Dredges

MD-822SP

MD-1022SP

GENERAL

Length

47′ 6″ (14.48 m) O.A.

51’ 6” (15.69m) O.A.

Height (without A/C)

8′ 10″(2.69 m)

9’ 10” (2.99m)

Width

9’ 11” (3.02 m)

12’ (3.65m)

Weight (Approx.)

30,500 lbs (13,832 kg)

47,000l lbs. (21,317 kg.)

Draft

26” (66 cm)

36” (0.91 m )

Fuel Capacity

325 U.S. gallons (1230 L)

425 U.S. gallons (1608 L)

ENGINE

Type

Cummins

Cummins

Model

QSB 9

Power

325 BHP (242kW) @ 2100 RPM

450 BHP (242kW) @ 2100 RPM

PUMP

Type

Hi-chrome cast iron, centrifugal, recessed Impeller

Impeller

Recessed – 25” (63.5 cm) diameter

Closed Vane – 19.5” (49.5cm) diameter

32 “ (81cm) closed vane impeller

Suction

8” (20.32 cm)

12” (30.48 cm)

Discharge

8” (20.32 cm)

10” (25.40 cm)

Capacity – Recessed

(water @ 68F / 20C)

7.75” (196mm) Sphere – Variable to 3,000 GPM

(11,355 L/min) @ 122 ‘(37.2m) head @960RPM

Capacity – Closed Vane

(water @ 68F / 20C)

3.625” (92mm) Sphere – Variable to 3,000 GPM

(11,355 L/min) @ 137′ (41.8 m) head @1100 RPM

Variable to 5.000 GPM (18,925 L/min) @ 125’ (38.1m)

TDH (slurry sg. 1.25) @ 620 RPM

CUTTER ASSEMBLY

Type

Horizontal with full-width, flow-through suction (Paddle or cutting teeth available)

Size

9′ 11″ (3.02 m) wide x 21″ (53.34 cm) dia.

12’ (3.65 m) wide x 21″ (53.34 cm) dia.

Speed

Variable 0-80 RPM (forward and reverse)

Torque

30,348 in-lbs. (3,429 N∙m)

30,348 in-lbs. (3,429 N·m)

Operating Depth

Variable to 22’ (6.7 m) with auger drive

Variable to 15′ (4.57 m) without auger drive

Variable to 30’ (9.14m) with auger drive

Variable to 22’ (6.70 m) without auger drive

PONTOONS

Dimensions

Two – 34″ (86.36 cm) x 40″ (101.6 cm) x 34′

6″ (10.52 m)

Two – 37″ (93.98 cm) x 48″ (117.6 cm) x 39′ 6″ (12.03

m)

Description

10 gauge steel, integral bulheads and stiffeners, formed for rigidity, cora-foam filled

PROPULSION

Two independent auger drives with variable speed

and a rear 25HP thruster for steering and positioning

enhancement

Type

Treble sheave hydraulic winch

Traverse Speed

Variable 0-50 ft/min (0-15.2 m/min)

Cutting Speed

0-15 ft/min (0-4.57 m/min)

HYDRAULIC SYSTEM

Drive Direct from engine

Pumps

Variable displacement, axial piston

Motors

Fixed displacement

Filters Protected hydrostatic loop, high pressure suction &

return with indicators

Capacity

Total, 190 GPM (761.5 L/min) @ 2200 RPM

Total, 190 GPM (761.5 L/min) @ 2200 RPM

Reservoirs

100 U.S. gallons (378.5 L)

150 U.S. gallons (567 L)

RELIEF SETTINGS

Centrifugal Pump

4000 psi (276 bar)

4000 psi (276 bar)

Cutter Head

3000 psi (207 bar)

3000 psi (207 bar)

Accessories

3000 psi (207 bar)

3000 psi (207 bar)

Boom

1500 psi (103 bar)

2500 psi (173 bar)

ELECTRICAL SYSTEM

Alternator

Output – 100 amp

Battery

Heavy Duty – 12 volt

PRIME FINISH

Lower Structure

Shear Tar Epoxy Paint

Upper Structure

Blue and White Epxoy Paint

* Please note, specs are subject to change