Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Annular Die used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.
A canonical Annular Die is characterized by the integration of Die Body and Mandrel. In industrial production environments, manufacturers listed on CNFX commonly emphasize Tool steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.
A critical component in plastic film blowing machines that shapes molten plastic into a continuous tubular film.
Technical details and manufacturing context for Annular Die
Commonly used trade names and technical identifiers for Annular Die.
| pressure: | 10-50 MPa (depends on polymer viscosity and die design) |
| flow rate: | 5-500 kg/h (varies with die diameter and polymer type) |
| temperature: | 150-300°C (typical polymer processing range) |
| slurry concentration: | Not applicable (designed for molten polymers, not slurries) |
Verified manufacturers with capability to produce this product in China
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Authentic performance reports from verified B2B procurement managers.
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Annular Die meets all ISO standards. (Delivery took slightly longer than expected, but technical support was excellent.)"
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Annular Die arrived with full certification."
“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”
For high-volume production, hardened steel alloys and tool steel are recommended due to their exceptional wear resistance and ability to maintain precise tolerances under continuous thermal cycling and mechanical stress.
Spiral grooves evenly distribute molten plastic around the die circumference, eliminating weld lines and ensuring uniform wall thickness in the tubular film, which is critical for consistent strength and optical clarity in the final product.
Regular cleaning to prevent plastic buildup, inspection of die lips and mandrel for wear or damage, and proper storage in a controlled environment to prevent corrosion are essential maintenance practices to extend die life and maintain film quality.
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