screw feeder is good screw feeder used in screw feeder industry cement industry screw feeder steel industry screw feeder food industry screw feeder on line weighing screw feeder screw feeders used in steel industry , mines, cement industry and food industry with static and dynamic weighing with high accuracy
Screw feeders: are systems designed for handling bulk solid materials where a helix or screw turns inside a hopper moving the materials forward and out of the feeding device into a process.
We have a full line of industrial, standards compliant, volumetric or gravimetric screw feeders for most material handling applications. The feeders can be configured for either continuous or batching operations where materials such as pellets, powders, cohesive or adhesive types need to be fed. Single screw and twin-screw models are available for manufacture as per the client requirements.
​
Screw feeders are designed to process bulk materials and are usually located at the start of a process. Capacity or feed rate can be accurately controlled with screw feeders. Variable Frequency Drives used for speed control improve metering accuracy and can provide a wide range of feed rates. Screw feeders are available in a variety of sizes, lengths, configurations and materials of construction.
​
The inlet of a screw feeder is always flood loaded. A screw feeder is typically mounted directly to a:
​
-
Hopper – Square or rectangular in shape with sloped bottom and limited storage capacity
-
Bin – Square or rectangular in shape with sloped bottom and large storage capacity
-
Silo – Cylindrical in shape with cone or mass-flow bottom and large storage capacity
​​
Several factors must be considered when designing a screw feeder, including:
​
-
Flow characteristics of bulk material being stored and metered
-
Density of bulk material in both stored and metered condition
-
Maximum and minimum capacity or feed rate of process
-
Bulk material size with screen analysis
-
Width and length of screw feeder inlet opening
-
Overall length of screw feeder
-
Height of bulk material in hopper, bin or silo
​​
With the screw feeder inlet flood loaded , the design of the screw in the inlet area and the screw speed determine the desired capacity or feed rate.
Most screw feeders are less than 20-feet in length because the use of internal hanger bearings is not recommended. In most applications a short screw feeder will meter a bulk material to a screw conveyor for transfer to the next step of the process.
​
