Rotary Screen Cleaners

screencleanerBjerke Brothers, Inc. continues to evolve by offering new and improved grain cleaning equipment for its global customer base. During the past few years, engineers at Crippen Manufacturing Company have been busy designing a new era of rotary screen machines offering great capacity, versatility and improved performance.

Working by means of rotary motion, the new NS Series rotary screen cleaners have the ability to remove both small and large foreign material from a vast variety of grains, oilseeds and pulse crops. The superior rotation speeds on the NS rotaries allow for a maximum presentation of screen surface to grain and, therefore, much higher capacities than possible from conventional screen separators. Depending on the model and application, capacities up to 12,000 bu/hr can be realized.

In nearly all cases, a rotary motion obtains the highest possible throughput of product per unit of screen area. As the particles travel down the sieve, the rotary motion allows for lateral, diagonal and longitudinal separation through varying screen openings and layers. With rotary action, the particles are exposed to a greater number of screen openings per pass, as compared with reciprocal motion.

screencleaner1By utilizing the latest available technology, Crippen Manufacturing Company has set a new standard in rotary screen separation. The NS Series of high-quality, rotary screen cleaners is truly today’s leader in capacity, versatility and performance.

 

Flow, Deck & Screen Combinations

There are two basic flow combinations for the new NS Series rotary screen cleaners: parallel flow for high-capacity applications, and counter flow for more precise separations where increased screen retention time is required. Out of these two basic flows are many variations of scalp/sift combinations that allow the NS Series of rotary screen cleaners the flexibility to meet all customer needs in capacity, reliability, economy and separation.

screener-parallel-schematic

Standard Features

  • Structural components made from heavy-gauge steel
  • Stress relieved
  • Orbiting screen action for superior screen capacity
  • Parallel or counter-flow deck configurations
  • Low-maintenance suspension rods and heavy duty universal joints
  • Heavy-gauge internal spouting for enhanced wear resistance
  • Positive securing of screen frame to shoe
  • Uniframe screen construction to ensure correct dimension between ball & screen, allowing maximum cleaning action
  • Inspection doors & sampling ports

Option

  • Additional rough scalping or fine scalping capabilities on one of the following:
    • Standard rubble deck
    • Extended rubble deck
    • Double extended rubble deck
  • 5° or 7° pitch shoes on selected models
  • Open and closed circuit scalper aspirators
  • Open and closed circuit aspirators

Model Code

screener-modelcode

Rotary Screen Cleaners Brochurepdf_icon_small

NS Rotaries: Series 88 & 120

NS Rotaries: Series 88 & 120

Model

Motor
H.P.

Machine Weight
(lbs.)

Total Screen
Area (sq. ft.)

Shoe Depths

Machine Length*

Machine Width*

Machine Height*

Inch

MM

Inch

MM

Inch

MM

Inch

MM

NS-20X88P20

5

8000

132

19 1/8

486

119

3023

93

2362

79

2007

NS-22X88P22

7.5

13000

264

19 1/8

486

124

3150

97

2464

101

2565

NS-33X88P22

10

16500

396

28 11/16

729

134

3404

97

2464

131

3327

NS-22X120P22

10

17000

360

20 7/8

533

157

3988

103

2616

104

2642

NS-33X120P22

15

21000

540

31 5/16

795

180

4572

103

2616

122

3099

NS-33x120P22LS8-60

15

24000

600

NS-33X120P22

15

21000

540

31 5/16

795

180

4572

103

2616

122

3099

NS-44X120P11

15

21000

360

31 5/16

795

165

4191

103

2616

122

3099

Note:
Standard rubble deck provides an additional 22 sq. ft. of scalping area
Double extended rubble deck provides an additonal 88 sq. ft. of scalping area
Both 54″ and 60″ shoes available on Series 120 rotaries

Counter-Flow

Counter-Flow

Model

Motor
H.P.

Machine Weight
(lbs.)

Total Screen
Area (sq. ft.)

Shoe Depths

Machine Length*

Machine Width*

Machine Height*

Inch

MM

Inch

MM

Inch

MM

Inch

MM

NS-11X88C22

5

9200

132

9 9/16

243

129

3277

93

2362

71

1803

NS-22X88C22

7.5

13000

264

19 1/8

486

124

3150

97

2464

90

2286

NS-23X88C212

7.5

14000

264

19 1/8

486

137

3480

97

2464

90

2286

* Measurements shown are without the aspirator or rubble deck

NS Rotaries: P33 Series

screener-p33-schematicComplementing the NS 88 & 120 Series rotaries, the P33 Series can provide either in-line resifting functionality with the P33 LS Series or multiple scalping functionality with the P33 TS Series. This additional functionality is achieved without compromising machine capacity. This new feature reduces traditional shrink associated with cleaning operations and also provides a “value-added” marketing opportunity. This feature also provides the ability to clean multiple commodities without having to change screens. This flexibility results in less down time. The P33 Series Rotary has become an important part of Northland’s innovative In-Line “value-added” grain processing philosophy. 

Model

Motor
H.P.

Machine Weight
(lbs.)

Total Screen
Area (sq. ft.)

Shoe Depths

Machine Length*

Machine Width*

Machine Height*

Inch

MM

Inch

MM

Inch

MM

Inch

MM

NS-22X120P33

10

17000

540

20 7/8

533

157

3988

103

2616

104

2642

NS-33X120P33

15

21000

810

31 5/16

795

180

4572

103

2616

122

3099

* Measurements shown are without the aspirator or rubble deck