Next Generation “V” series screen - Latest & Greatest. Why mess with the Best?

The Cedarapids/Eljay triple shaft screen is well known for its high production and screening efficiency and are considered the best in the industry. Many of our patented features like “sealed for life” o-ring huck bolt construction and “flow-through” lubrication make it the best. High productivity is achieved by its highly aggressive motion that agitates material getting smaller particles to the screen surface quickly where they can align and pass the openings. This aggressive action also helps keep screen openings clear when working sticky materials. The horizontal screen by its nature is more efficient than traditional sloped screens but even more efficiency comes from the oval stroke motion that pushes the screen openings directly, almost perpendicularly, into the material bed on the up stroke. This path promotes higher probability of passing “near size” particles on each stroke of the machine.

That reputation has put our screens in the cross hairs of competitors, and many copycat products or alternative products are being brought to the market. However, none have matched the true 3:1 elliptical stroke motion, high performance, and durability. With increasing pressure from competitors, we looked to take our screen products to the next level.

We tasked our engineers to address 3 basic areas of improved value; stronger & longer life, more capabilities and applications, and reduced maintenance and cost of ownership. Our long history and knowledge of our product gives us insight on where we can focus improvements while copycats, by their nature, are always a generation or two behind.

To enhance the strength and life, engineers utilized extensive computer analysis and simulation to optimize steel into critical areas. Screen performance and bearing life is directly related to the mass of the screen so keeping the weight similar was necessary to maintain the high G action. This optimization resulted in moving steel out of less critical areas and more steel “into the rock zone” with thicker sidewalls and heavier decks than competitors. Also, larger spring suspensions increased load carrying capability and better frame isolation.

To enhance capabilities, the patented suspension and lubrication system allows positioning the screen at a variety of low angle slopes from zero to 10 degrees to best match the application. The low angle slope combined with the high G oval stroke allows screening 50% larger openings (up to 6”) and handle heavier deck feed rates. This uniform low slope angle on the entire length of the screen provides high efficient near size screening the entire length of the screen. Competitive multi-slope “banana style” low G screens use increased slope on the feed end to help reduce bed loads but can only screen efficiently near the discharge end. These low G screens are also prone to plugging or pegging larger openings due to the reduced action. Along with adjustable slope, we also created a patented optional deck deflector system to increase the effective screen area of the critical bottom deck making the screen effectively 10% larger.

To reduce cost of ownership, several reduced or no maintenance features were incorporated. A new patented low maintenance damping system that minimizes suspension surges during startup and shutdown eliminated frequent maintenance and rubber wear parts. This new damping system also acts as a tether for portable plants eliminating the time to install rigid shipping braces. Breathers were removed on gear cases to eliminate breather maintenance. The new high capacity suspension system has bolted upper and lower spring guides which makes spring maintenance easier and quicker since the screen only needs lifted slightly to remove springs. This allows spray systems, feed chutes, and discharge chutes to remain in place. Oil sight glasses are incorporated rather than plugs so oil level can be checked without using wrenches. Optional replaceable wear liners on decks and shaft tubes also reduce maintenance repairs and down time.

These New “V” series is truly the next generation screen. We don’t stop with just the screen, our portable plants are top of the line with features like tethered surge damper, low maintenance “flex shaft” screen drive, rollaway blending chutes, and large capacity conveyors. These screens and portable plants deliver real value to the customer and raises the target for competitors once again.