The threaded element is a functional component that is fitted onto the mandrel and directly in contact with the material. They achieve different processing tasks through different geometric shapes (such as the number of thread heads, pitch, rotation direction, etc.). Due to its modular nature, this design is also known as a "building block" screw.
The mandrel, often also referred to as the screw mandrel or main shaft, is a central shaft made of high-strength alloy steel. It serves as the fundamental framework and power transmission shaft for the entire screw system.
The threaded element and the mandrel together form the "heart" and "hands" of the twin-screw extruder, determining the quality and efficiency of material plasticizing, mixing and conveying. The two are closely combined, jointly constituting the extruder to achieve various complex process functions
40CrNiMo | The torque can reach 10-11, but its performance will decline when the temperature exceeds 250 degrees. |
17-4PH( 1.4548) | Its does not decline within 350 degrees |
WR15E | higher torque, with the torque reaching 13-15 |
IN718 | the highest torque in this industry, mainly used in high-temperature industries |
We are mainly focus on ultra-high wear resistance, corrosion resistance,high temperature resistant integral sleeve and nickel chromium composite screw elements. We can develop high-quality non-standard products based on customer’s actual needs and working conditions.
Stable quality, reasonable price, timely delivery, and perfect after-sales service are our advantages. Based with strong technical force, excellent processing equipment, advanced production technology, strict inspection system and perfect after-sales service, Bloom has been a leading supplier in Plastic extruder accessories.We had successfully offered different kinds of accessories for well-known brand extruder such as Leistritz and Buss.
With the business philosophy of cooperation, win-win, integrity, and openness, we provide higher quality products and more efficient services all over the world. Looking forward to cooperating with you.