pultrx | Custom pultrusion die Product: https://pultrx.com/pultrusion-dies/custom-pultrusion-die Updated: 2026-11-01 Contact: inquiry@pultrx.com A custom pultrusion die is built around a controlled cross-section drawing and the intended process. These custom FRP pultrusion molds require a review of materials, reinforcement, critical dimensions and line interfaces. Henan Zhongsheng lists ladder-profile and shutter tooling examples; other sections need feasibility review before agreeing the design, trial scope and acceptance plan. 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 - Three-cavity D-pin die. Image: https://pultrx.com/images/pultrusion-dies/three-cavity-d-pin-die.webp - Entry face of a polyurethane die with injection ports. Image: https://pultrx.com/images/pultrusion-dies/polyurethane-profile-die-face.webp - Die for a basalt fiber profile ready for the line. Image: https://pultrx.com/images/pultrusion-dies/basalt-profile-die-in-die-shop.webp - Finished pultrusion die cavities and surface finishing Image: https://pultrx.com/images/factory/die-chrome-plating.webp - Composite shutter slat pultrusion die Image: https://pultrx.com/images/pultrusion-dies/shutter-slat-die.webp - Die for an arched cross-section. This photograph does not establish a machine for pultrusion along a curved path. Image: https://pultrx.com/images/pultrusion-dies/curved-plate-die.webp - Handrail die with preform guides. Image: https://pultrx.com/images/pultrusion-dies/handrail-die-with-preform-frame.webp SELECTION - Control the drawing revision: Identify the document that governs the quote and mark dimensions still under development. Agree how design changes after approval affect price, lead time and trial scope. - Define the deliverables: Specify whether the quote should include a layout, 3D model, guide drawings, sample report and maintenance instructions. Confirm ownership, use rights and confidentiality in the contract. - Review the complete process: Supply the resin and reinforcement plan with the section. Ask our engineering team to flag any additional feeding, heating or secondary operations needed for a workable proposal. PRODUCT FORMS AND CATALOGUE EXAMPLES - Ladder-profile tooling catalogue example - Composite shutter tooling catalogue example - Other drawing-based sections subject to feasibility review - Adaptation to an existing machine subject to interface review PROCESS TO REVIEW - Submit the design package: Provide the cross-section, material plan, machine interfaces and intended acceptance requirements. - Resolve feasibility questions: Request written comments on geometry, fiber routing and any proposed changes to the buyer drawing. - Agree approval and manufacture: Set drawing sign-off, deliverables, revision control and manufacturing release points in the quotation. - Agree trial and handover: Define trial charges, material supply, samples, report contents and the process for closing any deviations. 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 - Controlled section drawing in PDF and available CAD format - Critical dimensions, functional interfaces and acceptance criteria - Resin formulation, reinforcement schedule and output target - Existing machine drawings or proposed line configuration - Required design files, confidentiality and ownership terms - Trial scope, sample shipment, spare tooling and target delivery ACCEPTANCE EVIDENCE TO AGREE - Verify tooling and sample reports refer to the approved drawing revision. - Measure the agreed critical dimensions and functional mating features. - Review trial surface condition and any product tests explicitly contracted. - Check delivery documents, supplied components and unresolved deviation records. 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 Are 3D models and trial pulls automatically included? No automatic inclusion is assumed. Ask for each design file, review stage, trial and sample report to be listed with its price and responsibility. Who owns the tooling design? Tool ownership, design-file rights, confidentiality and permitted reuse should be stated explicitly in the contract. No default ownership arrangement is promised here. Do ladder tooling examples prove ladder certification? No. The catalogue example identifies tooling geometry. A finished ladder requires its own design assessment and applicable product tests. Can a die from another supplier be refurbished? Request an inspection-based assessment with drawings and wear history. Feasibility, treatment and resulting acceptance requirements must be confirmed before a refurbishment order. Should a standard tube or channel be quoted as custom tooling? Use the relevant tube, rod or structural die family when the drawing fits that form. Use this route for nonstandard geometry or process requirements, and identify what engineering review is additional. A custom label does not define included design files or trial work. 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 Tube and rod die families: https://pultrx.com/pultrusion-dies/tube-and-rod-dies Flat-strip and deck-board dies: https://pultrx.com/pultrusion-dies/flat-strip-and-deck-board-dies Review die geometry and surface-treatment decisions: https://pultrx.com/pultrusion-dies/pultrusion-die-design-guide Buy finished custom FRP profiles: https://pultrx.com/frp-profiles/custom-frp-profiles Prepare an enquiry: https://pultrx.com/contact?interest=pultrusion-die&product=Custom%20pultrusion%20die