Special - Shaped Screw Flight

This is a special - shaped spiral blade, widely used in environmental protection, mining, building materials, agriculture and other industries. It can transport special materials such as sludge, ore, concrete raw materials and straw crushed materials, helping production in various fields.

Why choose us?

Why Our Screw Flights Are Trusted Worldwide

High-Quality Helical Blades
Certified Welding Quality
Material Selection and Professional OEM Services
International Material Equivalency
Our Commitment

The Screw Flights We Manufacture Are Truly Helical

Truly helical flights must meet the following criteria:

Tightly fitted to the shaft (for efficient handling);

Uniform weld quality (for consistent weld procedure);

The flange part of the helical flight is perpendicular to the shaft;

The internal edge of the helical flight is parallel to the shaft;

Uniform pitch angle.
Backed by technical guidance and training from professional engineers in Canada, and refined through over 15 years of practical experience, the helical flights we produce fully meet the above requirements, ensuring a high-quality standard.

Welding Quality Certification – Recognized by International Authorities

All our welding processes strictly comply with the ISO 9001 quality management system and have obtained the following certifications:

CWB (Canadian Welding Bureau) W47.1 Certification – Canada’s highest welding standard;

CE Certification – meeting the requirements of the EU market.

The CWB welding certification is equivalent to:

AWS D1.1 (American standard);

AS/NZS 1554 (Australian standard);

EN ISO 3834 (EU standard).

Our welding quality not only meets Chinese standards but also fully aligns with strict international requirements.

Standard materials: Q235B and Q355B steel plates;

Both materials have corresponding international standards and are widely recognized;

Under the technical guidance of Canadian engineers, we combine strict material selection with mature OEM/design-assisted OEM capabilities to ensure the high performance of Screw flights.

We provide OEM and design-assisted OEM services, enabling rapid customization of screw flights according to the specific needs of customers’ projects.

International Material Comparison Table

Chinese Standard	USA (ASTM/ASME)	Australia/New Zealand (AS/NZS)	Europe (EN)	Notes
Q355B	ASTM A572 Grade 50 / A992	AS/NZS 3679.1 Grade 350	EN S355JR / S355JO / S355J2	High-strength structural steel, yield strength ≥ 355MPa
Q235B	ASTM A36	AS/NZS 3679.1 Grade 250	EN S235JR / S235JO / S235J2	General structural steel, yield strength ≥ 235MPa

Conclusion: Both Q355B and Q235B have direct international equivalent materials. Customers can use them with confidence, as they comply with engineering standards in North America, Europe, and Australia.

With the support of professional guidance and training from Canadian engineers, and combined with 15 years of manufacturing experience, we ensure every screw flight meets the following standards:

Strict material selection;

High-precision flight forming;

Welding certification in line with international standards.

Beijing Sichuang Jiade Pile Machinery Manufacturing Co., Ltd. = Authentic Design, Reliable Performance, and Globally Trusted Quality.

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