Shakeouts
Carrier shakeouts efficiently shake out castings and reduce sand lump size. The vibratory motion separates the sand from the castings, allowing sand to pass through a perforated deck and castings to end discharge for further processing.
Benefits of Carrier shakeouts:
- Patented Delta-Phase® shakeouts provide ultimate process control.
- Available in low, medium, and high frequency designs with direct drive force or natural frequency designs.
- Direct drive design prevents overstroke during upset conditions caused by wet, sticky sand.
- Natural frequency designs handle heavy duty applications with very low energy consumption.
- Mounted on soft isolation springs to reduce the dynamic reaction transmitted to the foundation.
- Barrel Horse™ shakeout provides the above features while gently blending the molding sand with the castings. Also provides homogenous, conditioned sand and cool, clean castings. Extremely useful handling fragile castings commonly damaged by rotating drum shakeouts.
Patented Delta-Phase® Shakeouts
For metalcasters to be successful today, the formula is simple: produce more high quality castings with less equipment, people, and maintenance. In many foundries, the shakeout has been an expensive roadblock to this path of success. Decades-old foundry technology has contributed to increasing operating costs while limiting the ability to adjust to ever-changing customer demands.
A radically new technology, however, stands ready to put those old shakeouts in the industrial museum. The new patented Delta-Phase® Shakeout will improve your foundry’s bottom line by reducing maintenance costs, reducing or eliminating casting damage, and maximizing sand removal. Perhaps more importantly, this single machine can handle a wide range of molding processes, mold sizes, metal types, and casting designs by adjusting to your ever-changing production demands.
Read how a recent client solved his production problems,
while saving costs and time, with a Carrier patented Delta-Phase® Shakeout
Safer Shakeout Article
Control conveying speed retention time…precisely.
The heart of the Delta-Phase® Shakeout is the process controller. Using simple and reliable electronics, the Delta-Phase® Shakeout is able to precisely control the angle of vibration. This change in vibration angle controls the conveying speed and retention time of your castings on the shakeout deck, optimizing sand removal. You can accurately and automatically change this angle–even on the fly! A wide range of casting types and sizes can be accommodated by using pre-programmed settings. Each casting type can be assigned a set of pre-determined shakeout parameters to optimize sand removal without damaging the casting.
Using common VFD and PLC technology, the angle of vibration is changed to meet each unique shakeout requirement. Most foundries produce a wide variety of casting shapes and sizes. When a fragile casting is processed, the angle of vibration may be lowered in order to reduce the retention time and the overall force imparted onto the casting. When a heavy casting is processed, the angle is increased to increase retention time and improve sand removal.
The Delta Phase is typically operated in “stop-n-go” mode or “continuous” mode. In “stop-n-go” mode, the angle of vibration is set at vertical once the mold reaches the center of the shakeout. Separation of sand from the casting and lump breakdown continues until the next mold approaches the shakeout. In continuous mode, the angle of vibration is set and maintained to provide the optimum retention time for the castings being produced. When a new casting is made, the angle of vibration is changed to its optimum angle.
Flexibility yields productivity
The Delta-Phase® Shakeout can be used for sand to metal ratios as low as 5:1 and as high as 60:1. The provided controls accommodate an unlimited number of recipes for diverse casting production. In addition to main line sand/casting separation, the shakeout may also be used for lump breakers, sprue cleaning, and casting de-accumulation.
The Delta-Phase® Shakeout was designed with maintenance and process flexibility in mind. The last thing metalcasters want is more high maintenance equipment. By reducing maintenance and increasing operational flexibility, the Delta-Phase® Shakeout will pay immediate dividends to any foundry operation.
The key feature of the Delta-Phase® Shakeout is direct drive technology. Direct drive is a simple, robust design that utilizes long-life, spherical roller bearings and eccentric weights to drive the system. The eccentric weights are inertially synchronized, which eliminates the need for any gearboxes or timing belts.
Compare this design to a two-mass natural frequency shakeout–with its multiple vibrating masses and a forest of coil springs—and the advantages are obvious. Although the natural frequency design is precisely tuned to reduce the horsepower requirements of the shakeout, it is also very sensitive to any upset conditions or lax preventative maintenance. Most owners of natural frequency shakeouts are painfully aware of the problems that usually occur after a period of tough operation: sticking sand, jammed castings, and loose springs. The typical result is hours of downtime to repair cracks or replace springs.
The direct drive design is not a tuned natural frequency system, therefore it is not sensitive to mass and speed changes or loose springs–all of which cause an overstroke condition. Overstroke is the leading cause of structural damage in all vibratory equipment! The Delta-Phase Shakeout will not overstroke due to its direct drive design.
For more information on Carrier shakeouts in general, refer to brochures #16616 and #16617.
