Cooling screw conveyors with dimple jacket

Cooling screw conveyors with dimple jacket delivered in a project with a total of 12 screw conveyors. Two of these are cooling screw conveyors.

Used methods in the cooling screw conveyors

1. Jacket cooling by using dimple jacket – see pictures
2. Cooling of the inner tube of the screw rotor

Dimple jackets are efficient in cooling the jacket. They create turbulence by agitating the process fluid within the dimples, which increse the efficiency. To avoid condensation on the outside surface, the jacket is insulated with 50 mm mineral wool. See another cooling screw conveyor with conventional plate jacket here In this project BEMA has undertaken all the task with respect to the screw conveyors:

1. Made the complete design of all the screw conveyors
2. Included support, chutes, inlets and outlet in the design
3. Manufactured all the screw conveyors
4. Insulated the cooling screw conveyors
5. Performed a FAT-test in the factory
6. Packed and shipped the screw conveyors to the final client

Often cooling screw conveyors are a part of a complete transport system. In this case BEMA can assist in designing the complete transport line and ensure the hole line transportation issue is solved. This make the final installation easier and more cost effective for the final customer. BEMA has experience to deliver complete screw conveyor transporting lines with:

1. Support crates
2. Legs and other support elements
3. Customer designed inlet and outlet for the screw conveyors
4. Chutes, insulation and other needed add-ons

BEMA has its own design department with engineers and technicians with specific knowledge in design cooling screw conveyors as well as all the other needed screw conveyors and related elements. We always recommend to contact us as early as possible in the planning process in order to clarify the complete requirements.

Early planning ensures

• Shorter delivery time
• Lower total cost
• Easier installation on-site

FAQ: Cooling Screw Conveyors with Dimple Jacket

1. What are cooling screw conveyors with dimple jacket used for?

Cooling screw conveyors with dimple jacket are designed to cool materials efficiently during transport in industrial processes. They are often part of larger conveying systems and are used in projects requiring controlled temperature reduction of bulk materials. Their design ensures stable operation and consistent cooling performance.

2. How does the dimple jacket improve cooling efficiency?

A dimple jacket increases cooling efficiency by creating turbulence in the cooling medium. The dimples agitate the process fluid, improving heat transfer and ensuring faster, more uniform cooling. To prevent condensation on the outer surface, the jacket is insulated with 50 mm mineral wool.

3. What tasks does BEMA handle in such conveyor projects?

BEMA manages the entire process: design, manufacturing, integration of supports and chutes, insulation, FAT testing, packing, and shipping. This full‑service approach ensures a smooth project flow and reliable system performance for the end customer.

4. Can cooling screw conveyors be part of a complete transport line?

Yes. Cooling screw conveyors are often integrated into full transport systems. BEMA can design complete conveying lines, including supports, legs, custom inlets and outlets, chutes, and insulation, ensuring efficient and cost‑effective installation.

5. Why is early planning recommended for these systems?

Early involvement allows BEMA to clarify technical requirements, optimize design, and ensure seamless integration. This results in shorter delivery times, lower total costs, and easier on‑site installation for the customer.