Greystone Stationary Sand Classification Tanks, Semi-Portable Sand Classification Tanks, Portable Sand Classification Tanks, Classification Control Systems.

Stationary Classification Tanks | Semi-Portable Classification Tanks | Portable Classification Tanks | Control Systems

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GreyStone Classification Tank Standard Features and Benefits

Hydraulic Lines & Cylinder Rods
Only stainless steel hydraulic lines and cylinder rods are used for long-life operation and minimal downtime.

Control Panel
A NEMA-rated control enclosure that houses the programmable logic controller and the menu driven control display, along with the hydraulic pump motor indicator and rising current pump motor indicator.

Urethane Discharge Valves and Seats
The valves and seats are self-aligning which keep the valve centered in the seat. This provides maximum flow for long and trouble-free life.

Urethane Discharge Boots
Designed to produce maximum flow and with the optimum angle to reduce wear of flume’s bottom runners which are abrasion-resistant lined.

Walkway And Control Bridge With Handrail
The walkway and control bridge houses the complete hydraulic valve control system and material depth detectors. Maintenance is easy with an access door and pressure line shut-off valve at each station.

Rising Current Pump Assembly
Complete with drive, motor, mounting stand, bearings, impeller and vortex seat for maximum performance.

Manifold And Control Valves
Designed for maximum flow and conveniently located for easy adjustment.

Valve And Grate System
Designed to allow for a full range of material and rising current water flow with easy adjustment.

Stationary Sand Classification Systems
The GreyStone stationary Aggre-Spec product line includes 10 classifier models ranging in size from 8 ft x 20 ft to 12 ft x 48 ft. Stationary structures offer from 6 to 11 classifying stations with 3 cells, capable of producing up to 3 products at one time.

Aggre-Spec Specifications

Classifier Size	No. Of Stations	Capacities Maximum Gallons Per Minute Overflow for Various Retention of Fines			No. Of Cells	Estimated Weight
		100M	150M	200M
8’ x 20’ 8’ x 24’ 8’ x 28’ 8’ x 32’ 10’ x 24’ 10’ x 28’ 10’ x 32’ 10’ x 36’ 10’ x 40’ 12 x 48’	6 7 8 9 7 8 9 10 11 11	2300 2800 3200 3500 3500 4100 4700 5300 5900 8100	1200 1400 1600 1800 1800 2100 2400 2700 3000 4200	700 800 900 950 950 1100 1250 1400 1500 2150	3 3 3 3 3 3 3 3 3 3	12,000 14,000 16,000 18,000 18,000 20,000 24,000 28,000 30,000 44,000

Semi-Portable Sand Classification Systems

GreyStone semi-portable Aggre-Spec classifying systems feature a modular, low-profile construction and stack-up design for quick installation. The line includes 18 classifier models ranging in size from 8 ft x 24 ft to 12 ft x 48 ft. Semi-portable structures offer from 7 to 11 classifying stations and produce up to 820 TPH.

Aggre-Spec Specifications

Classifier Size	Screw Size	Screw Capacity TPH	No. Of Stations	No. Of Cells	Estimated Weight
8’ x 24’	Twin 36” x 25’ E	200	7	3	40,000
8’ x 28’	Twin 36” x 25’ E	200	8	3	42,000
8’ x 32’	Twin 36” x 25’ E	200	9	3	48,500
10’ x 24’	Twin 36” x 25’ E	200	7	3	50,000
10’ x 28’	Twin 36” x 25’ E	200	8	3	51,000
10’ x 32’	Twin 36” x 25’ E	200	9	3	51,500
10’ x 36’	Twin 36” x 25’ E	200	10	3	58,500
10’ x 40’	Twin 36” x 25’ E	200	11	3	63,000
8’ x 32’	Twin 44” x 32’	350	9	3	60,000
10’ x 32’	Twin 44” x 32’	350	9	3	64,500
10’ x 36	Twin 44” x 32’	350	10	3	67,000
10’ x 40’	Twin 44” x 32’	350	11	3	68,000
10’ x 40’	Twin 54” x 35’	480	11	3	97,000
10’ x 40’	Twin 66” x 35’	720	11	3	132,000
12’ x 48’	Twin 44” x 32’	350	11	3	91,000
12’ x 48’	Twin 54” x 35’	480	11	3	116,000
12’ x 48’	Twin 66” x 35’	720	11	3	150,000
12’ x 48’	Twin 72” x 35’	820	11	3	175,000

Portable Sand Classification Systems

GreyStone fully portable Aggre-Spec classifying systems feature a low-profile design for quick transport and installation. The line includes 8 classifier models ranging in size from 8 ft x 24 ft to 10 ft x 40 ft. Portable structures offer from 7 to 11 classifying stations and produce up to 350 TPH.

Aggre-Spec Specifications
Classifier Size	Screw Size	No. Of Axles/Tires	Screw Capacity TPH	No. Of Stations	No. Of Cells	Estimated Weight
8’ x 24’	Twin 36” x 25’ E	2/8	200	7	3	50,000
8’ x 28’	Twin 36” x 25’ E	2/8	200	8	3	51,000
8’ x 32’	Twin 36” x 25’ E	2/8	200	9	3	52,000
8’ x 32’	Twin 44” x 32’	3/12	350	9	3	73,500
10’ x 28’	Twin 44” x 32’	3/12	350	8	3	81,000
10’ x 32’	Twin 44” x 32’	3/12	350	9	3	86,000
10’ x 36’	Twin 44” x 32’	3/12	350	10	3	88,000
10’ x 40’	Twin 44” x 32’	3/12	350	11	3	95,000

Control Systems

Aggre-Spec™ Control Systems
Out-of-spec product can cost producers thousands of dollars per day. The Aggre-Spec Control is a Windows^®- based control system that allows producers to make an unlimited number of recipes of two products. Aggre-Spec control systems hold to tight product specifications and warn operators of potential out-of-spec product conditions. Three Models are Available:


Aggre-Spec	Aggre-Spec II	Aggre-Spec III	Aggre-Spec V6 (click for brochure)

Aggre-Spec I™
GreyStone's Aggre-Spec I sand re-blending control system allows producers to maintain specifications by diverting excess fractions on a "percentage" basis from the individual stations of the classifier. Aggre-Spec I features:

10 recipes of two products--for a total of 20 products.
Each recipe has a programmable cycle time.
All stations have the same cycle time of discharge.
Each station is independent of other stations.
Total time is 100% for each station which allows any valve to be set in one-percent (1%) increments.
Station time is divided among valves A and B as required ... then valve C the remainder of time.
Station Monitor: Measures length of time each station has discharged for a record of production.
Sensing Paddle Alarm: Notifies operator when one of the sensing paddles has been stalled in excess of set point time.
Control panel lights indicate when valve is actuated.
Alarm History.

Aggre-Spec II™
GreyStone's Aggre-Spec II sand re-blending control system allows producers to maintain specifications by diverting excess fractions from the incoming feed material by setting minimum and maximum timer settings of the classifier's individual stations, "batching" the finished product specifications. Aggre-Spec II features:

10 recipes of two products--for a total of 20 products.
Each valve has a maximum and minimum time setting.
The Control System monitors production at all stations as follows: The product valve (A) at each station will register with the controller when it reaches its minimum discharge time and will continue to discharge until either:

A. it reaches its maximum time, or

B. the rest of the (A) valves at all other stations have reached their minimum time ... at which point all product (A) valves will reset for the next cycle.

If the product (A) discharge valve reaches its maximum time and the cycle has not reset:

A. the remainder of sand will discharge to the product (B) valve at that station.

B. when product (B) valve reaches its maximum and neither cycle has reset, only then will the sand discharge at the (C) valve.

C. when either product (A) or (B) cycle resets, material will stop discharging at the (C) valve. This illustrates how all valves for one product are controlled together so the resulting discharge of all sand fractions stays within the specification envelope for each product (A) and (B) while producing the minimum of non-specification product (C).

Increase Production With Windows^®-based Aggre-Spec III™
GreyStone's Aggre-Spec III computer-aided sand re-blending system features a patent-pending, 2-method control system that delivers higher productivity than single-method programs. This exclusive GreyStone program automatically selects the most efficient process for re-blending up to 3 products, including 2 spec products, simultaneously. The user-friendly Aggre-Spec III allows multi-tasking with other Windows-based programs. Aggre-Spec III is available for all GreyStone classifier models and can be retrofitted to most existing classifying operation systems.

Get Unmatched Efficiency with Aggre-Spec III

Patented, 3-method re-blending system delivers up to 15% higher productivity than single-method programs.
Simple, "single-step" product spec changes eliminate wasted time searching for hidden keys.
Automatically monitors feed material to warn the operator of potential product mix or mechanical problems.
Holds to tight product specifications and reduces the possibility of out-of-spec material.
Unlimited mix design storage capacity.
Multi-tasking capabilities with other Windows-based programs while re-blending spec sand products.
End of Cycle Alarm: Once a station reaches its maximum discharge of all three valves, the alarm alerts operator if any station has not reached its minimum.
Ratio Control: Allows operator to proportion material flow within a station to valve (A) and (B) intermittently.
Station Overrides: Simulate a stalled paddle.
Maintains history of production of each valve at each station.
Control panel lights indicate when valve is actuated.
Alarm History.

Aggre-Spec V6

The Aggre-Spec V6 re-blending system offers the same profit-enhancing benefits as the popular Aggre-Spec control systems – with greater Computing power and more user-friendly visuals.
Efficiency and operational ease is improved because more data can be viewed from a single screen – and is laptop accessible for seamless control.
Increases production by up to 15%.
Re-blends up to 2 spec products simultaneously using single or twin tank controls.
Holds tight product specifications and reduces the possibility of out-of-spec material
Offers simple product spec changes and multi-tasking capabilities with Windows® based programs.
Displays real-time FM and yield graphs
Stock pile analysis checks finished product against expected products and input settings.
Report module collects data, including FM, yield, feed gradation and output gradation, and stores in spreadsheet format for flexible reporting.

For more information or to receive a quotation on Classification Systems, click here
To visit the BinMaster web site: http://www.greystoneinc.com/