Bjerke Brothers, Inc.

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See Also: NS Aspirators

NS 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.

Two 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 Aspirator - Closed Circuit:
Model	Capacity (Wheat)		Feed Roll Motor* (Option)	Scalper Motor	Fan Motor(s)	Air (CFM)	Weight		Length		Width		Height
Model	Bu/Hr	MT/Hr	Feed Roll Motor* (Option)	Scalper Motor	Fan Motor(s)	Air (CFM)	Lbs	Kg	Inch	MM	Inch	MM	Inch	MM
NS-12x36	1200	32	*2	1	1x3	540	1800	818	95	2413	75	1905	65	1651
NS-12x48	1600	43	*2	1.5	1x5	700	2200	1000	95	2413	86	2184	65	1651
NS-12x60	2000	54	*2	1.5	1x5	875	2700	1227	95	2413	102	2591	65	1651
NS-18x84	4400	119	*3	2	2x5	1425	4500	2045	91	2311	154	3912	62	1575
NS-18x90	4700	127	*3	2	2x5	1540	5000	2273	91	2311	159	4039	62	1575
NS-18x101	5300	143	*3	2	2x5	1725	5600	2545	91	2311	170	4318	62	1575
NS-18x115	6000	163	*3	2	2x5	1950	6200	2818	91	2311	184	4674	62	1575
NS-24x72	6450	175	*3	2	2x5	1400	4800	2182	91	2311	141	3581	62	1575
NS-24x90	8100	220	*3	2	2x5	1765	6000	2727	91	2311	178	4521	62	1575
NS-24x115	10300	279	*3	2	2x5	2250	7700	3500	91	2311	184	4674	62	1575
1. Closed circuit Scalper Aspirators use recirculated air from internal fans to separate or lift materials from the product mass.2. Recommended useage 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.

Scalper Aspirator - Open Circuit:
Model	Capacity (Wheat)		Feed Roll Motor* (Option)	Scalper Motor	Air (CFM)	Weight		Length		Width		Height
Model	Bu/Hr	MT/Hr	Feed Roll Motor* (Option)	Scalper Motor	Air (CFM)	Lbs	Kg	Inch	MM	Inch	MM	Inch	MM
NS-12x36	1200	32	*2	1	2150	1600	727	107	2718	67	1702	41	1041
NS-12x48	1600	43	*2	1.5	2800	2000	909	107	2718	79	2007	41	1041
NS-12x60	2000	54	*2	1.5	3500	2500	1136	107	2718	91	2311	41	1041
NS-12x84	2800	76	*3	1.5	5000	3600	1636	107	2718	115	2921	41	1041
NS-12x101	3350	91	*3	2	5900	4300	1955	107	2718	132	3353	41	1041
NS-12x115	3800	104	*3	2	6700	4900	2227	107	2718	146	3708	41	1041
NS-18x84	4400	119	*3	2	5700	3700	1682	120	3048	116	2946	53	1346
NS-18x90	4700	127	*3	2	6150	4000	1818	120	3048	122	3099	53	1346
NS-18x101	5300	143	*3	2	6900	4400	2000	120	3048	133	3378	53	1346
NS-18x115	6000	163	*3	2	7800	5000	2273	120	3048	147	3734	53	1346
NS-24x72	6450	175	*3	1.5	5600	3400	1545	138	3505	110	2794	74	1880
NS-24x90	8100	220	*3	2	7050	4300	1955	138	3505	147	3734	74	1880
NS-24x115	10300	279	*3	2	9000	5400	2455	138	3505	153	3886	74	1880
1. Open circuit Scalper Aspirators require a remote dust control system to remove air separated materials. 2. Recommended useage 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.

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