Custom Forged Steel Flute Rollers with Tungsten Carbide Coating

The AstraRoll Technical Advantage
We engineered our corrugating rolls to maximize your machine's uptime and reduce raw material waste:

HVOF Tungsten Carbide Coating: Applied at supersonic speeds, this coating achieves a hardness of >HV1200. It is incredibly wear-resistant, completely preventing the flute tips from flattening out over millions of meters of paper.

Optimized UV-Flute Profiles: Our CNC grinders create a perfect hybrid "UV" flute shape. This reduces paper tension, prevents the tearing of lower-grade papers, and minimizes the amount of glue required to bond the liner.

Heavy-Duty Forged Core: We use 48CrMo forged steel that is deeply quenched and tempered. This guarantees the roller will not bend, warp, or crack under the extreme nip pressures of high-speed single facers.

Uniform Heat Distribution: Excellent heat transfer ensures the corrugated paper forms perfectly without blistering. Our peripheral-heated designs provide a consistent surface temperature across the entire working width.

Key Specifications

Please note: We manufacture entirely to your Single Facer machine's specifications.
Outer Diameter: Custom from 200mm up to 600mm+.
Face Length: Custom up to 3,000mm+.
Flute Types: Standard (A, B, C, E, F, G) or Custom Profiles.
Coating Hardness: ≥ HV1200 (Tungsten Carbide) / ≥ HRC58-60 (Base Steel).
TIR (Runout): ≤ 0.02mm.
Dynamic Balancing: ISO G2.5 for smooth high-speed rotation.

Why Choose AstraRoll?

1. Immediate ROI on Paper Savings

A worn flute roller forces your machine to use up to 5% more corrugated medium (paper) to achieve the same board thickness. Because AstraRoll Tungsten Carbide rollers never lose their flute height, you maintain your ideal "take-up ratio," saving thousands of dollars in raw materials every month.

2. Factory-Direct Refurbishing Service

Don't scrap your old rollers. Ship your worn-out flute rollers to the AstraRoll factory. We will strip the old coating, re-cut the flutes to the perfect original geometry, and apply a fresh Tungsten Carbide coating, giving you a brand-new roller at a fraction of the cost.

Frequently Asked Questions (FAQs)

Q: Can you make rollers for my specific brand of Single Facer?
A: Yes. We manufacture custom corrugating rolls for all major machine brands. Just provide your machine model or drawings.

Q: Why is Tungsten Carbide better than Hard Chrome for corrugating rolls?
A: Hard chrome is softer and flakes off over time. As it wears, the top of the flute gets flat, which ruins the cardboard strength and uses more glue. Tungsten carbide is nearly as hard as diamond; it grips the paper better, lasts 3 to 5 times longer, and maintains the exact flute geometry for years.

Q: What is the difference between "Peripheral Heating" and "Central Heating"?
A: Central Heating uses a large hollow core filled with steam; it is cheaper but takes longer to heat up. Peripheral Heating uses small, deep holes drilled just under the flute surface. This heats up much faster, saves steam energy, and keeps the temperature perfectly even across the roller, which is highly recommended for high-speed lines.

Q1. Are you a trader or direct factory?

We are a direct manufacturing factory with over 20 years of expertise in high-end industrial rollers, casters and material handling solutions. Our facility operates with ISO-certified quality management systems, allowing us to maintain full control over production cycles and quality standards. Throughout two decades of growth, we have established deep, long-term strategic partnerships with several listed companies and global automation leaders, proving our reliability as a high-tier industrial supplier.

Q2. What are your main products?

AstraRoll specializes in the engineering and production of three core product lines: Industrial Rollers, Heavy-Duty Wheels, and Precision Casters. We do not just sell components; we provide integrated movement and transport solutions. Our products are widely utilized across high-demand sectors, including: New Energy, Lithium Battery, Mining, Heavy Industry, Medical Institutional, Agriculture and Logistics.

Q3. What about delivery time?

We deeply understand that project timelines are critical.
Standard Products: Usually dispatched within 7–15 working days if the components are in stock.
Customized/OEM Orders: Depending on the complexity and volume, the lead time typically ranges from 20–35 days. This includes time for technical drawing confirmation, specialized tooling, and rigorous pre-shipment testing.
Shipping Methods: We offer flexible global logistics solutions, including FOB and CIF terms. We ship via Sea Freight (for bulk industrial orders), Air Freight (for urgent project needs), and International Express (DHL/FedEx/TNT) for smaller components or samples.

Q4. How can I get a quote for customized products?

Since a significant portion of our business involves specialized engineering, pricing is tailored to your specific technical requirements. To provide an accurate quote, please provide the following details: Technical Drawings or Sketches, Application Environment, Quantity, Special Requests. Our engineering team typically reviews and responds to custom inquiries with a formal quotation within 24–48 hours.

Q5. What is your payment?

TT / Paypal / Western Union / LC / Credit Card etc. are all available to us.