Sandwich Belt High Angle Conveyors

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Sandwich Belt High Angle Conveyors

A Sandwich Belt conveyor uses two conveyor belts, face-to-face, to gently but firmly contain the product being carried, hence making steep incline and even vertical-lift runs easily achievable.

A Sandwich Belt conveyor uses two conveyor belts, face-to-face, to gently but firmly contain the product being carried, hence making steep incline and even vertical lift runs easily achievable. Sandwich belt high angle conveyors are available in widely ranging profiles of C and S-shape. In either case, a long bottom belt approach is possible to the Sandwich entrance, and the discharge may be on the high incline or after the extension of the carrying belt beyond the mouth of the Sandwich.

Advantages of the DSI sandwich conveyor :

  • Low power/energy requirements
  • No degradation of materials
  • All conventional conveyor parts
  • Smooth surfaced rubber belts that can be continuosly scraped clean
  • High reliability which ensures uninterrupted operation
  • Low maintenance costs

With hundreds of applications around the world, you can find Sandwich Belt high angleconveyors in the following applications:

  • Coal loading and unloading at power plants and steel mills
  • IPCC (in-pit crushing and conveying) in open pit mines
  • Handling wood chips at pulp and paper mills
  • Tunneling for mines and city development
  • Mobile ship loading for ships and barges
  • Handling biomass at power facilities
  • Wastewater treatment plants
  • Diamond mines and Gold mines
  • Recycling plants
  • Fertilizer plants
  • Cement plants and Oil refineries

Sandwich Conveyor for Copper Mine, Eastern Europe
DS 003

  • Material - Copper Ore
  • - Density - 2.08 t/cu-m (130 PCF)
  • - Size - To 250 mm (10”) minus
  • Conveying Rate - 4000 t/h (4409 STPH)
  • Conveying Angle - 35.5 degrees
  • Belt Width - 2000 mm (78.7”)
  • Belt Speed - 2.85 m/s (561 FPM)
  • Lift - 93,500 mm (307’)
  • Length - 173,700 mm (570’)
  • Drives
  • - Top Belt - 450 kW (600 HP)
  • - Bottom Belt - 2x450=900 kW (1200 HP)

Sandwich Conveyor for Metro Project, Los Angeles, CA, USA
DS 005

  • Material - Excavated Earth
  • Conveying Rate - 272 t/h (300 STPH)
  • Conveying Angle - 90 degrees
  • Belt Width - 914 mm (36”)
  • Belt Speed - 1.6 m/s (315 FPM)
  • Lift - 32,300 mm (106’)
  • Belt Speed - 2.85 m/s (561 FPM)
  • Drives
  • - Top Belt - 22.4 kW (30 HP)
  • - Bottom Belt - 22.4 kW (30 HP)

Sandwich Conveyor for Coal Prep Plant, Eastern USA
DS 009

  • Material - Clean Coal
  • - Density - 0.8 t/cu-m (50 PCF)
  • - Size - 127 mm (5”) minus
  • Conveying Rate - 726 t/h (800 STPH)
  • Conveying Angle - 90 degrees
  • Belt Width - 1372 mm (54”)
  • Belt Speed - 2.79 m/s (550 FPM)
  • Lift - 76,200 mm (250’)
  • Length - 90,200 mm (296’)
  • Drives
  • - Top Belt - 112 kW (150 HP)
  • - Bottom Belt - 112 kW (150 HP)

Sandwich Conveyor for Coal Mine, Western USA
DS 011

  • Material - Raw Coal
  • - Density - 0.961 t/cu-m (60 PCF)
  • - Size - 203 mm (8”) minus
  • Conveying Rate - 1089 t/h (1200 STPH)
  • Conveying Angle - 67 degrees
  • Belt Width - 1372 mm (54”)
  • Belt Speed - 3.56 m/s (700 FPM)
  • Lift - 33,200 mm (109’)
  • Length - 46,000 mm (151’)
  • Drives
  • - Top Belt - 93.2 kW (125 HP)
  • - Bottom Belt - 93.2 kW (125 HP)

Downhill Sandwich Conveyor from Phosphate Mine, Venezuela
DS 021

  • Material - Phosphate Rock
  • - Density - 1.60 t/cu-m (100 PCF)
  • - Size - 6.3 mm (1/4”) minus
  • Conveying Rate - 668 t/h (736 STPH)
  • Conveying Angle - 35.5 degrees
  • Belt Width - 914 mm (36”)
  • Belt Speed - 2.29 m/s (450 FPM)
  • Elevation Drop - 34,000 mm (111.5’)
  • Length - 113,000 mm (371’)
  • Drive
  • - Bottom Belt - 93.2 kW (125 HP)

Sandwich Conveyor at Underground Gypsum Mine, Eastern USA
DS 024

  • Material - Gypsum Rock
  • - Density - 1.70 t/cu-m (106 PCF)
  • - Size - 152 mm (6”) minus
  • Conveying Rate - 363 t/h (400 STPH)
  • Conveying Angle - 90 degrees
  • Belt Width - 1067 mm (42”)
  • Belt Speed - 1.52 m/s (300 FPM)
  • Lift - 36,600 mm (120’)
  • Length - 48,500 mm (159’)Drives
  • Drives
  • - Top Belt - 37.3 kW (50 HP)
  • - Bottom Belt - 37.3 kW (50 HP)

Sandwich Conveyors Units 061 & 062 for Cement Plant, Indonesia
DS 061

  • Material - Coal
  • - Density - 1.0 t/cu-m (62 PCF)
  • - Size - 9.5 mm (3/8”) minus
  • Conveying Rate - 200 t/h (220 STPH)
  • Conveying Angle - 60 degrees
  • Belt Width - 762 mm (30”)
  • Belt Speed - 2.29 m/s (450 FPM)
  • Lift - 19,965 mm (66’)
  • Length - 36,000 mm (118’)Drives
  • Drives
  • - Top Belt - 22.4 kW (30 HP)
  • - Bottom Belt - 22.4 kW (30 HP)

Sandwich Conveyor for Limestone Quarry, Midwest USA
DS 064

  • Material - Limestone
  • - Density - 1.60 t/cu-m (100 PCF)
  • - Size - 76 mm (3”) minus
  • Conveying Rate - 762 t/h (800 STPH)
  • Conveying Angle - 60 degrees
  • Belt Width - 1067 mm (42”)
  • Belt Speed - 2.54 m/s (500 FPM)
  • Lift - 48,000 mm (158’)
  • Length - 79,000 mm (258’) Drives
  • Drives
  • - Top Belt - 168 kW (125 HP)
  • - Bottom Belt - 168 kW (125 HP)

Sandwich Conveyor for Steel Mill, Southern USA
DS 080

  • Material - Iron Ore Fines
  • - Density - 2.2 t/cu-m (138 PCF)
  • - Size - 2 mm (1/16”) minus
  • Conveying Rate - 180 t/h (198 STPH)
  • Conveying Angle - 68 degrees
  • Belt Width - 914 mm (36”)
  • Belt Speed - 1.2 m/s (236 FPM)
  • Lift - 67,600 mm (222’)
  • Length - 91,000 mm (299’)Drives
  • Drives
  • - Top Belt - 37 kW (50 HP)
  • - Bottom Belt - 37 kW (50 HP)

Two-Units EleVeyor EL for Blue Plains -WWTP (Data, Each Unit)
DS 083

  • Material - Municipal Sludge
  • - Density - 1.0 t/cu-m (65 PCF)
  • Conveying Rate - 13.6 t/h (15 STPH)
  • Conveying Angle - 90 degrees
  • Belt Width - 610 mm (24”)
  • Belt Speed - 0.38 m/s (75 FPM)
  • Lift - 5,000 mm (16.3’)
  • Length - 11,250 mm (36.9’)
  • EL Drives
  • - Top Belt - 1.9 kW (2.5 HP)
  • - Bottom Belt - 1.9 kW (2.5 HP)

EleVeyor EL for Foxwood Casino -WWTP
DS 085

  • Material - Municipal Sludge
  • - Density - 1.0 t/cu-m (65 PCF)
  • Conveying Rate - 13.6 t/h (15 STPH)
  • Conveying Angle - 90 degrees
  • Belt Width - 610 mm (24”)
  • Belt Speed - 0.38 m/s (75 FPM)
  • Lift - 3,350 mm (11’)
  • Length - 14,800 mm (48.5’)
  • EL Drives
  • - Top Belt - 1.5 kW (2 HP)
  • - Bottom Belt - 1.5 kW (2 HP)

DSI Snake #2 Sandwich Conveyor for Continental CN at Snap Lake Diamond Mine (Initial / Future)
DS 092

  • Material - Kimberlite
  • - Density - 1.6 t/cu-m (100 PCF)
  • - Size - 50 mm (2”) minus
  • Conveying Rate - 250/500 t/h (276/552 STPH)
  • Conveying Angle - 49.5 degrees
  • Belt Width - 914 mm (36”)
  • Belt Speed - 1.5/2.2 m/s (295/433 FPM)
  • Lift - 18,310 mm (60.1’)
  • Length - 70,562 mm (231.5’)
  • Snake Drives
  • - Top Belt - 22.4/44.8 kW (30/60 HP)
  • - Bottom Belt - 22.4/44.8 kW (30/60 HP)

DSI Snake Sandwich Conveyor Shiploader for Cortex Resources at Port Adelaide, Australia
DS 097

  • Material - Titanium Ore
  • - Density - 2.08 t/cu-m (130 PCF)
  • Conveying Rate - 1000 t/h (1102 STPH)
  • Conveying Angle - 50 degrees
  • Belt Width - 1200 mm (47”)
  • Belt Speed - 2 m/s (394 FPM)
  • Lift - 21,805 mm (71.5’)
  • Length - 56,656 mm (185.9’)
  • Snake Drives
  • - Top Belt - 55 kW (74 HP)
  • - Bottom Belt - 55 kW (74 HP)

DSI Snake Sandwich Conveyor for Oxbow, Ltd, Fawley Plant, Southampton, UK
DS 103

  • Material - Sulfur
  • - Density - 1.20 t/cu-m (75 PCF)
  • - Size - 2 mm (1/8”) minus
  • Conveying Rate - 20 t/h (22 STPH)
  • Conveying Angle - 50.5 degrees
  • Belt Width - 600 mm (23.6”)
  • Belt Speed - 0.40 m/s (78.7 FPM)
  • Lift - 19,266 mm (63.2’)
  • Length - 55,800 mm (183.1’)
  • Snake Drives
  • -Top Belt - 3.7 kW (5 HP)
  • - Bottom Belt - 3.7 kW (5 HP)

DSI Sandwich Conveyor for SNF Coagulants, St. Avold France
DS 115

  • Material - Magnetite
  • - Density - 3.00 t/cu-m (188 PCF)
  • - Size - 1 mm (.04”) minus
  • Conveying Rate - 30 t/h (33 STPH)
  • Conveying Angle - 90 degrees
  • Belt Width - 610 mm (24”)
  • Belt Speed - 0.39 m/s (76 FPM)
  • Lift - 8,790 mm (29’)
  • Length - 14,400 mm (47’)
  • Snake Drives
  • - Inner Belt - 4.00 kW (6 HP)
  • - Outer Belt - 4.00 kW (6 HP)

DSI Sandwich Conveyor for Singapore Airport
DS 116

  • Material - Tunnel Muck
  • - Density - 1.83 t/cu-m (114 PCF)
  • - Size - 150 mm (6”) minus
  • Conveying Rate - 800 t/h (882 STPH)
  • Conveying Angle - 45 degrees
  • Belt Width - 1200 mm (47”)
  • Belt Speed - 2.00 m/s (76 FPM)
  • Lift - 32,783 mm (108’)
  • Length - 90,142 mm (296’)
  • Snake Drives
  • - Inner Belt - 75 kW (100 HP)
  • - Outer Belt - 75 kW (100 HP)