Scalper Aspirators

Bjerke Brothers, Inc. Scalper Aspirators are designed and manufactured to provide two main product separations. The first separation involves scalping or removing large unwanted materials from the product streams. The second separation removes fines from the product stream by use of the controlled air flow through the product stream. Crippen Northland Superior Scalper Aspirators are engineered for use in the harshest of conditions in continuous operations.

scalperTwo basic models are available; Open Circuit, which uses the external dust control system for air supply and Closed Circuit, which uses integral fans for air supply. Various options, including scalper roll screens in wire mesh sizes from 5/8 to 1 1/4″ center to center, rolled into 12″, 18″ or 24″ diameter, and incremental lengths from 36″ to 115″ long, provide for a wide range of available capacities and operating efficiencies.

Standard Features

  • Wire mesh or punched-flat metal scalper roll screens in a wide variety of sizes
  • Adjustable air bleed-in
  • Maintenance-free sealed bearings
  • Poly belt drives
  • Closed or open circuit
  • Air liftings discharge from either LH or RH of machine
  • Adjustable feed gate
  • Aspiration velocity control

Options

  • Fixed or variable speed feed rolls for uniform feed rate and positive shut-off
  • Feed inlet agitator
  • Feed roll cavity spacers for precise volume control
  • Stainless steel product contact areas for product flow lubricity
  • Abrasion liners on selected impact areas

scalper-schematic

Crippen Northland Superior Reel Scalper Aspirators Brochurepdf_icon_small

Crippen Reel Scalper Aspirators Brochurepdf_icon_small

Closed Circuit

Scalper Aspirator – Closed Circuit:

Model

Capacity (Wheat)

Feed Roll
Motor* (Option)

Scalper
Motor

Fan
Motor(s)

Air
(CFM)

Weight

Length

Width

Height

Bu/Hr

MT/Hr

Lbs

Kg

Inch

MM

Inch

MM

Inch

MM

NS-12×36

1200

32

*2

1

1×3

540

1800

818

95

2413

75

1905

65

1651

NS-12×48

1600

43

*2

1.5

1×5

700

2200

1000

95

2413

86

2184

65

1651

NS-12×60

2000

54

*2

1.5

1×5

875

2700

1227

95

2413

102

2591

65

1651

NS-18×84

4400

119

*3

2

2×5

1425

4500

2045

91

2311

154

3912

62

1575

NS-18×90

4700

127

*3

2

2×5

1540

5000

2273

91

2311

159

4039

62

1575

NS-18×101

5300

143

*3

2

2×5

1725

5600

2545

91

2311

170

4318

62

1575

NS-18×115

6000

163

*3

2

2×5

1950

6200

2818

91

2311

184

4674

62

1575

NS-24×72

6450

175

*3

2

2×5

1400

4800

2182

91

2311

141

3581

62

1575

NS-24×90

8100

220

*3

2

2×5

1765

6000

2727

91

2311

178

4521

62

1575

NS-24×115

10300

279

*3

2

2×5

2250

7700

3500

91

2311

184

4674

62

1575

CCSR

  1. Closed Circuit Scalper Aspirators use recirculated air from internal fans to separate or lift materials from the product mass.
  2. Recommended usage is for primary or secondary cleaning applications containing 2% or less fines.
  3. Typical applications: wheat, barley, oats, canola, corn, rice, pulse crops, edible beans, soybeans, sunflower, safflower, mustard, sorghum, etc.
  4. Capacities variable with physical characteristics of incoming product, outgoing specifications, scalper mesh size, moisture content and operating efficiency.
  5. Proper setting of the air control adjustments is critical in optimizing performance of the Scalper Aspirator.
  6. Rescalping Reel available on 24″ Scalper Aspirators. Consult factory for dimensions.

Open Circuit

Scalper Aspirator – Open Circuit:

Model

Capacity (Wheat)

Feed Roll
Motor* (Option)

Scalper
Motor

Air
(CFM)

Weight

Length

Width

Height

Bu/Hr

MT/Hr

Lbs

Kg

Inch

MM

Inch

MM

Inch

MM

NS-12×36

1200

32

*2

1

2150

1600

727

107

2718

67

1702

41

1041

NS-12×48

1600

43

*2

1.5

2800

2000

909

107

2718

79

2007

41

1041

NS-12×60

2000

54

*2

1.5

3500

2500

1136

107

2718

91

2311

41

1041

NS-12×84

2800

76

*3

1.5

5000

3600

1636

107

2718

115

2921

41

1041

NS-12×101

3350

91

*3

2

5900

4300

1955

107

2718

132

3353

41

1041

NS-12×115

3800

104

*3

2

6700

4900

2227

107

2718

146

3708

41

1041

NS-18×84

4400

119

*3

2

5700

3700

1682

120

3048

116

2946

53

1346

NS-18×90

4700

127

*3

2

6150

4000

1818

120

3048

122

3099

53

1346

NS-18×101

5300

143

*3

2

6900

4400

2000

120

3048

133

3378

53

1346

NS-18×115

6000

163

*3

2

7800

5000

2273

120

3048

147

3734

53

1346

NS-24×72

6450

175

*3

1.5

5600

3400

1545

138

3505

110

2794

74

1880

NS-24×90

8100

220

*3

2

7050

4300

1955

138

3505

147

3734

74

1880

NS-24×115

10300

279

*3

2

9000

5400

2455

138

3505

153

3886

74

1880

OCSR

  1. Open Circuit Scalper Aspirators require a remote dust-control system to remove air-separated materials.
  2. Recommended usage is for all applications in a pre-cleaning or primary cleaning environment where large amounts of foreign materials or fines are present.
  3. Typical applications: wheat, barley, oats, canola, corn, rice, pulse crops, edible beans, soybeans, sunflower, safflower, mustard, sorghum, etc.
  4. Capacities variable with physical characteristics of incoming product, outgoing specifications, scalper mesh size, moisture content and operating efficiency.
  5. Proper setting of the air control adjustments is critical in optimizing performance of the Scalper Aspirator.
  6. Rescalping Reel available on 24″ Scalper Aspirators. Consult factory for dimensions.