Polyurethane Slitting Roller for Sheet Metal & Film Cutting

The AstraRoll Custom PU Slitting Roller is a high-durability support component engineered for precision coil slitting, rewinding, and strip cutting systems. In high-speed steel or thin film conversion lines, continuous contact with sharp slit edges and heavy blade compression causes standard rubber rollers to groove, pit, or delaminate quickly, resulting in tension loss and surface scratches on high-end materials.

Our custom polyurethane formulations solve these processing bottlenecks. Possessing high physical tear resistance and outstanding memory recovery, the tough PU shell handles high linear loads without permanent flat spots. It provides a stable, uniform nip surface that dampens line vibrations, maintains strict web tension, and prevents sliding scuffs on delicate foils and optical films.

Technical Parameter

Product Framework: Precision Cast Polyurethane (PU) Slitting / Backing / Anvil Roller

Core Shaft Core: Heavy-Wall Seamless Carbon Steel / Forged Steel Base Elements

Coating Material: Premium High-Molecular-Weight Polyurethane (PU) Elastomer

Hardness Spectrum: 70 Shore A – 98 Shore A (±3 Shore A precision formulation)

Bonding Integrity: Multi-stage chemical vulcanization bonding (Zero delamination guarantee)

Total Indicator Runout (TIR): ≤0.005mm (CNC finish-ground for perfect web leveling)

Surface Finish Choice: Polish Mirror Smooth (Ra ≤0.4μm) / Matte Anti-Static Layers

Chemical Immunity: High resistance to rust inhibitors, slitting oils, and cutting lubricants

Mechanical Properties: Exceptional cut-growth resistance and high compression set recovery

Applications

Sheet Metal Slitting Lines: Backing and tensioning rolls for continuous slitting of copper strip, aluminum coil, silicon steel sheets, and stainless steel foils.

Plastic & Film Cutting Machinery: Anvil and guiding rolls for slicing lithium battery separators, optical protective films, and flexible packaging webs.

Coil Conversion Processes: Heavy-duty nip feeding and pull-roller assemblies in high-speed rewinding and coil inspection machinery.

Why Choose AstraRoll's PU Slitting Roller for Sheet Metal & Film Cutting?

High Cut-Growth & Tear Resistance: Sharp metal strip edges and heavy knife tracking split low-grade rubber face rollers. AstraRoll applies highly cross-linked cast PU compounds that resist deep mechanical cuts and micro-tearing. This prevents surface grooving and extends part life under continuous heavy loading.

Heavy Duty Bonding Defeats Face Delamination: Heavy linear load shearing can cause the polyurethane layer to tear away from the metal cylinder core. Our proprietary multi-layer chemical bonding process fuses the PU elastomer directly to the steel shaft, ensuring stable performance during sudden speed adjustments or high tension spikes.

Deflection-Free Micron Runout for Precise Slit Edges (≤0.005mmTIR): Dynamic runout variances cause web pulsing, which leads to wavy slit lines or edge burrs. We precision-grind the final polyurethane outer surface to a total indicator runout (TIR) of ≤0.005mm. This uniform contact maintains exact web tracking and reliable coil tension control.

Non-Marking Shield Protects Bright Material Surfaces: Low-grade polymers can transfer oil residues or leave scuff marks on sensitive foils and optical films. Our polyurethane compounds are thoroughly post-cured and free from migrating plasticizers. This clean surface provides an oil-resistant, anti-marring grip that protects thin webs from cosmetic surface defects.

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.