Overview: When Do You Need Stainless Steel?
You don't need stainless steel for sand or coal. But if you are handling:
- Food: Sugar, Flour, Salt, Milk Powder, Spices.
- Chemicals: Fertilizer, Detergent, Lithium Battery Powder.
- Pharmaceuticals: Medicine powder, Vitamins.
Then Carbon Steel is not an option. Even a speck of rust can ruin your entire batch of product. The Kunwei Stainless Series ensures zero metal contamination and full compliance with FDA / GMP standards.
Key Design Features
- Surface Finish (The Detail Matters):
- Industrial Grade: Sandblasted (Matte) finish. Good for chemicals.
- Food Grade: Polished to Ra 0.8μm (Mirror finish). Smooth surface prevents powder from sticking and bacteria from growing.
- Seamless Welding: We use continuous Argon Arc Welding (TIG). All weld seams are ground smooth and pickled. No cracks or crevices where material can hide.
- Shaft Seal Protection: We use special Air-Purged Seals or PTFE Lip Seals to prevent black grease from the bearing leaking into your white sugar or flour.
Easy-Clean Design (For Food Plants)
For food factories that need daily cleaning, we offer a "Quick-Clean" design:
- Quick-Release Clamps: The cover or tube casing can be opened in seconds without tools.
- Wash-Down Motor: Waterproof motors (IP65/IP66) that can withstand high-pressure water jets during cleaning.
- Discharge Drop-Bottom: The bottom of the trough can open up to drain wash water completely.
Advantageous Features
I. Simple operation, which can realize continuous operation.
II. The speed of material transfer can be adjusted.
III. The material transferring capacity is large, and the application range is wide.
IV. Simple structure and easy maintenance.
V. Stainless steel, corrosion resistance.
Technical Parameters
| Model | Screw Dia. (mm) | Capacity (m³/h) | Finish Standard | Recommended For |
| LS-150SS | 150 | 2 - 5 | Mirror Polish | Spices / Additives |
| LS-200SS | 200 | 5 - 15 | Mirror Polish | Sugar / Flour Packing |
| LS-250SS | 250 | 15 - 30 | Sandblast | Fertilizer / Salts |
| LS-300SS | 300 | 30 - 50 | Sandblast | Chemical Powder |
Remark: this Stainless steel screw conveyor technical data is only for reference, please contact us for more technical data.
Application
Stainless steel screw conveyor is used in a variety of industries, including coal ash, chemical, electric power , agricultural, and construction. Especially suitable for corrosive or high-temperature materials.
FAQ
Q: How do you prevent iron contamination during manufacturing?
A: We have a dedicated Stainless Steel Only workshop. Carbon steel tools are banned from this area to prevent cross-contamination (iron dust) that causes rust spots later.
Q: Can you polish the inside of the tube?
A: Yes. For high-hygiene requirements, we polish both the inner wall and the screw flight to a mirror finish to ensure smooth flow.
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