ASME Certified Dished Head Manufacturer in China with Full Material Traceability System
1. Why Choose Us?
(1)HENAN GUOJIANG PRECISION FORMED HEAD CO., LTD is a professional manufacturer of Dished heads and Pipe Caps with ASME and PED Certifications.
(2)Henan Guojiang Precision Formed Head Co., Ltd maintains a comprehensive end-to-end traceability system applicable to all incoming raw materials and finished dished heads manufactured at our factory.
(3)All customer orders received by the sales department undergo technical review before production. Only after full verification of all dimensional and technical specifications will the technical department release formal production work instructions. These documents define mandatory standards for each manufacturing stage, and all on-site production personnel shall comply with them rigorously.
(4)Once fabrication is completed, the quality control department performs full inspection and testing on every individual piece or batch corresponding to each order.
2. The Quality Control System from HENAN GUOJIANG PRECISION FORMED HEAD CO., LTD.
(1). 100% Full Inspections after production before Delivery.
(2). Follows International Production Standards strictly, which exactly meets our customers' demand.
(3). Authorized Certifications: ISO, ASME, PED, and other relevant pressure vessel certificates.
(4). Complete Documentation provided for each order:
(a). Raw steel plate Materials Testing Certificate(MTC).
(b). Report of quality examination of Dished Heads.
(c). Partial Data report of Dished Heads.
(d). NDT Report for Large-Sized Welded Dished Heads. (RT, UT, PT)
| Quality Certifications |
GB/T 25198-2023 |
| ASME BPVC Sec.VIII Div 1 |
| PED (Pressure Equipment Directive) |
| ISO 9001:2015 |
| ISO 14001:2015 |
3. Frequently Asked Questions(FAQ)
(1) Are you a factory or a trading company?
Henan Guojiang Precision Formed Head Company is a Professional Manufacturer of Dished Heads in China with ASME/PED Certifications. dedicated manufacturing facility specializing in the production of dished heads (ellipsoidal, torispherical, hemispherical, and custom-formed heads) for industrial applications.
(2) Is your quality control system reliable?
100% traceability of dished heads and Raw steel plate Materials Testing Certificate(MTC), Our production system operates under a structured quality management workflow with strict process control. Each manufacturing order is released only after technical review and process validation by the Production Technology Department.
All fabrication stages are governed by controlled process sheets (route cards), ensuring traceability and compliance at every step, including forming, heat treatment (if required), machining, and inspection. Batch-level quality control is implemented to ensure dimensional accuracy, surface integrity, and compliance with applicable technical specifications, including high-precision applications such as MRI and magnetic resonance equipment.
(3) Do you support customization?
Yes. We provide full customization services for non-standard and engineered dished heads. Production is carried out strictly according to client-supplied technical drawings, material specifications, design codes, and dimensional requirements. Engineering support is available for specification clarification prior to quotation and manufacturing.
(4) Do you strictly control delivery schedules?
Yes. Delivery control is integrated into our production planning system. Each order is assigned a defined manufacturing schedule based on process routing, material availability, and workload balancing.
Lead times are calculated prior to production release and are strictly managed through internal scheduling controls to ensure on-time delivery in accordance with confirmed production plans.
4. Main Products of Dished Head from GJ Formed Head Manufacturer:
(1) Elliptical Head
(2) Torispherical Head
(3) Polished Mirror Head
(4) Conical Head
(5) Flat Head
(6) Pressure Vessel & Tank Head
(7) Pipe Caps
(8) Customization Accepted
5. Package and Delivery:
(1) All products are firstly wrapped with stretch film to prevent surface scratches.
(2) Optional packaging solutions: wooden cases, carton boxes, or bulk loading in 20GP / 40HQ containers.
(3) Direct full-truck delivery is available upon request.
Your message must be between 20-3,000 characters!
