pultrx | Structural profile pultrusion dies Product: https://pultrx.com/pultrusion-dies/structural-profile-dies Updated: 2026-11-01 Contact: inquiry@pultrx.com A structural profile pultrusion die forms a constant FRP cross-section. Henan Zhongsheng supplies I-beam pultrusion dies, channel and angle tooling, with handrail and toe-plate examples in its catalogue. Specify flange and web dimensions, corner radii, reinforcement placement and machine interfaces before tooling is released. Finished-profile structural performance requires a separate assessment. Manufacturer: Henan Zhongsheng Composite Material Co., Ltd. Manufacturer’s export trading company: pultrx, Shanghai, China Catalogue figures are references, not a binding offer. Confirm the configuration, inclusions and acceptance criteria in the written quotation. CONFIGURATIONS Configuration SPECIFICATIONS Die steel options: Configuration = Polyester and vinyl ester dies: 40Cr, P20, Cr12, 38CrMoAl. Epoxy and carbon fiber dies: P20, Cr12, H13, SKD11. Phenolic dies: P20, Cr12. Polyurethane dies: Cr12, SKD11. One-piece round rod dies Ø3–300 mm: 40Cr, P20. Compression dies: P20, SKD11. Confirm the grade on the die drawing. (Select the steel grade for the resin system and cavity geometry, then record it on the approved die drawing.) Cavity hardness (HRC): Configuration = HRC 55–60 for every die type in the factory table (Hardness references differ across catalogues; confirm material, treatment and the inspection method for the quoted die.) Cavity surface treatment: Configuration = Quench and temper, hardening, hard chrome plating and nitriding, chosen per resin system and die type; round rod and compression dies are listed with quench-and-temper plus hard chrome only (Specify the selected treatment route on the approved drawing.) Hard chrome thickness: Configuration = 0.04–0.05 mm catalogue reference for chrome-plated tooling only; confirm applicability and inspection for the quoted die Resin compatibility: Configuration = Polyester, vinyl ester, epoxy, phenolic or polyurethane; confirm formulation and process Heater supply: 380 V 50 Hz / 480 V 60 Hz: Configuration = Confirm only if heating equipment is in scope Control requirements, if controls are supplied: Configuration = Confirm destination requirements, assessment documents and responsible party in the quotation; no certification assumed Warranty party: Configuration = Henan Zhongsheng Composite Material Co., Ltd.; terms and exclusions to be confirmed in the contract PRODUCT PHOTOGRAPHS - 86 mm channel die with preform guides, as trialed on the factory line. Image: https://pultrx.com/images/pultrusion-dies/channel-die-with-preformers.webp - Nitrided die for a special angle section. Image: https://pultrx.com/images/pultrusion-dies/nitrided-angle-die.webp - Epoxy half-I die with its preform frame. Image: https://pultrx.com/images/pultrusion-dies/epoxy-half-i-section-die.webp - FRP I-beam pultrusion die Image: https://pultrx.com/images/pultrusion-dies/fiberglass-i-beam-die.webp - Three-cavity angle die. State the leg lengths, thickness and the cavity count per die. Image: https://pultrx.com/images/pultrusion-dies/fiberglass-angle-die-three-cavity.webp - Channel die. Identify flange and web dimensions and the heating layout on the drawing. Image: https://pultrx.com/images/pultrusion-dies/fiberglass-channel-die.webp SELECTION - Define the critical geometry: Identify flange width, web thickness, internal radii and connection faces. Give functional tolerances for assembled joints rather than a blanket tolerance for every dimension. - Separate section and assembly requirements: Ask how the proposed fiber layout and trial material will be assessed. Structural performance or a finished assembly rating needs its own test scope; it is not established by the die shape. PRODUCT FORMS AND CATALOGUE EXAMPLES - I-beam catalogue examples - Channel / C-section catalogue examples - Angle / L-section catalogue examples - Handrail section catalogue example - Toe-plate catalogue example PROCESS TO REVIEW - Review the profile drawing: Agree datums, wall transitions and dimensions that affect downstream connections. - Review the tooling proposal: Request the proposed die split, heating interfaces and reinforcement guide arrangement. - Set sample acceptance: Agree checks for flange and web dimensions, section angles and longitudinal distortion. - Close the trial review: For a contracted trial, review the sample report and decide whether adjustments or further samples are required. CORE SCOPE TO SPECIFY - Die body and cavity finish: configuration to confirm against the approved drawing - DFM and approval documents: deliverables and revision allowance to confirm - Preforming guides and mounting interfaces: itemize quantities in the quotation - Trial pull, samples and dimensional report: agree materials, duration and charges OPTIONS AND SERVICES TO PRICE SEPARATELY - Heating plates, thermocouples and controls: request a separate scope line - Mandrels and supports for hollow sections: confirm whether included or additional - Resin injection box and connection to existing equipment: price if required - Refurbishment, replacement inserts and sample freight: request separate pricing RFQ INPUTS — complete these before requesting a quotation - Dimensioned cross-section and drawing revision - Critical connection surfaces and tolerances - Resin, reinforcement and any product test requirements - Machine table, heater and puller interfaces - Target production rate and proposed trial materials - Required inspection report, spares and delivery date ACCEPTANCE EVIDENCE TO AGREE - Measure flange and web dimensions against the agreed profile drawing. - Check section angles and straightness using the agreed datum and gauge length. - Record surface condition and any visible fiber displacement on trial samples. - Verify tooling interfaces and the documented list of supplied parts. COMMERCIAL ITEMS TO CONFIRM Applicable performance and destination requirements; lead time in working days; payment milestones; warranty party, term and exclusions; packing, Incoterm and delivery destination. For equipment, include plant power and spare parts. QUESTIONS Do you also list deck and T-bar tooling? Yes. Flat-strip and deck-board dies and grating T-bar dies have separate pages so their geometry, quoting questions and trial checks can be assessed independently. Does the die establish a structural grade? No. Specify the required finished-profile tests and responsibilities separately from dimensional tooling acceptance. Is sheet-pile tooling a verified product here? No verified sheet-pile die specification is published here. A catalogue category alone is not evidence of a particular section or manufacturing capacity. What makes two structural die quotations comparable? Use the same section revision, resin and reinforcement plan, and identify any guide, heater or gripping changes. Compare die inspection separately from cured-sample flange and web dimensions, twist and straightness over an agreed gauge length. RELATED RESOURCES Prepare the die RFQ drawing package: https://pultrx.com/guides/how-to-specify-a-pultrusion-die Compare tooling quote scope: https://pultrx.com/guides/pultrusion-die-cost Arrange a factory and die-shop audit: https://pultrx.com/manufacturing-partner Flat-strip and deck-board dies: https://pultrx.com/pultrusion-dies/flat-strip-and-deck-board-dies Grating T-bar dies: https://pultrx.com/pultrusion-dies/grating-t-bar-dies Hydraulic pulling equipment: https://pultrx.com/pultrusion-machines/hydraulic-pultrusion-machine Plan a structural-profile production line: https://pultrx.com/guides/pultrusion-line-for-structural-profiles Buy finished structural FRP sections: https://pultrx.com/frp-profiles/structural-profiles Prepare an enquiry: https://pultrx.com/contact?interest=pultrusion-die&product=Structural%20profile%20pultrusion%20dies