Delivering superior scrubbing action, producers choose GreyStone log washers to clean clay and silty material from their spec aggregate product.

Featuring a unique spiral paddle shaft, our log washer design eliminates intermittent shock loading on the shaft and gearbox and delivers a continuous material motion, resulting in a cleaner final product.

You can count on GreyStone Log Washers to help you turn material washing problems into profitable solutions and meet the specification demands for multiple rock products. 

Manufactured for years of dependable, operator-friendly performance, GreyStone log Washers allow producers to wash a broader range of spec aggregate product sizes from 2-inch to 4-inch.

GreyStone Log Washers come in five models and offer a variety of sizes, overflow water capacity and production levels as high as 190 TPH. 

GreyStone Log Washers are constructed of high-quality ASTM A36 structural steel for years of trouble-free service life.

Log Washer Brochure	Logwasher Video	Log Washer Features Gear and Drive Assembly Shafting External Bearing Paddle Design Standard Ni-Hard Adjustable Wear Paddles, Paddle Base and Log Shafts Large Heavy-Duty Tub Heavy-Duty Skid Frame Rising Current Injection Clean-Out Drain Send Us A Sample

Optional Features
Final Rinse Spray Bar

GEAR AND DRIVE ASSEMBLY
The GreyStone gear reduction is totally enclosed within an oil bath gear box. The Log Washer shafts are driven by twin helical, synchronized precision gears. The gear reduction is accomplished with only two sets of reducer gears. All shafts are mounted in flange bearings which are standard off-the-shelf items. The lower bearings are all externally mounted and can be pressure-lubricated with ease. This unique reduction is designed with service and customer convenience in mind.

SHAFTING
The heavy stub of mirror-smooth, heat-treated shafting is fitted into a hard stainless steel spacing sleeve. Shaft and sleeve are driven through a heavy-duty rubber gasket that fits snugly between the connecting disc and tub. A specially designed sling fits perpendicular to the shaft between the roller bearing and sleeve. It turns with the shaft further protecting the exterior mounted bearing from seal leakage.

EXTERNAL BEARING
GreyStone Log Washers have externally mounted pillow block bearings on the lower end that are standard off-the-shelf items available in all metropolitan cities nationwide.

PADDLE DESIGN
GreyStone Log Washers have a superior design in which paddles are positioned in a spiral along the log shaft. The spiral action will eliminate intermittent shock loading on the shaft and gear box. Other log washers using in-line paddle placement are confronted with increased energy requirements, vibration and continuous shock load on the drive system. The GreyStone spiral design will give continuous motion in the material, resulting in maximum scrubbing action. The material being agitated in a continuous motion will reduce energy requirements.

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ADJUSTABLE NI-HARD WEAR PADDLES, PADDLE BASE, AND LOG SHAFTS
The paddle bases have a unique design which allows extra wear life. The bases have two sets of bolt holes which will allow you to move the Ni-Hard wear-resistant paddles out after the ends have been worn off. Ni-Hard wear paddles provide maximum service life with minimum maintenance requirements. This will give extra life from these wear shoes. GreyStone wear shoe paddles are mounted to the bases with Grade 8 bolts. The paddle bases are installed at the proper angle to the extra-heavy seamless steel pipe. This will give maximum washing action with the highest possible production. The heavy seamless steel log shafts have flanges welded to both ends. After these flanges have been installed they are precision ground to provide you with maximum bearing, gear and shaft service.

LARGE HEAVY-DUTY TUB
GreyStone designs strong and rigidly constructed Log Washers to provide years of maintenance-free service. Each GreyStone Log Washer is all-welded construction made of heavy plate steel with angle iron skid frame to reduce moving and set up time, protect bearing, gear box and V-Belt drive, and give rigidity during operation.

HEAVY-DUTY SKID FRAME
GreyStone standard series washers are equipped with a heavy-duty skid frame. Pull a GreyStone to where it is needed without using a crane... an Exclusive GreyStone Feature.

RISING CURRENT INJECTION
The rising current water enters the Log Washer tub from the bottom and filters up, separating fines, dirt and other extraneous matter, which is carried to the top and forced out with the overflow. The water is injected between the log shaft through a perforated dome-shaped injection system. Additional water may be added through spray bars mounted along the top of the tub. It is recommended that aggregate be pressure sprayed on a screen following the log wash.

CLEAN-OUT DRAIN
An easily operated clean-out valve is provided on the lower end of the tub for flushing and draining of the tub reservoir.

SEND US A SAMPLE
Send us a sample of your pit run material for a free examination and recommendation for the best equipment selection to meet your requirements.

 

OPTIONAL – FINAL RINSE SPRAY BAR
This will help remove film and residue material from product. This would be mounted above and between the paddle shafts at the dry deck end of the log washers.

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