VMI Incorporated Logo
VMI, Inc.
1125 N. Maitlen Dr.
Cushing, Oklahoma USA 74023
Toll Free: (800) 762-2257
Phone: (918) 225-7000
Fax: (918) 225-0333
Email: info@vmi-dredges.com
VMI Incorporated Logo
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  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 and 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, intergral 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
Products
Note: Specifications subject to change without notice
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VMI Horizontal Dredge Specifications