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Premium Flat Dished Heads &
Elliptical Dished Heads

High-quality pressure vessel components manufactured by Yixing Haiqun Machinery Technology Co., Ltd. Custom OEM/ODM solutions for industrial applications worldwide.

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Who We Are

Yixing Haiqun Machinery Technology Co., Ltd. located in Yixing City, Wanshi Town, Dajian Valley, Jiangsu Province. We adhere to the principle of "customer first, integrity-based" to deliver high-performance dished heads and pressure vessel components.

Factory Production

Quality Control

Our company attaches great importance to the quality of our products or services. We have established a strict quality control process. Our quality control team ensures every product meets international standards including ASME, ANSI B16.9, and PED.

Manufacturing Excellence

We specialize in cold pressing, hot forming, and welding techniques to produce dished heads with diameters from 25mm to 5000mm. Materials include carbon steel, stainless steel, dual-phase alloys, and nickel alloys.

Global Reach

Serving industries such as petrochemical, pharmaceutical, food processing, and energy. Our OEM/ODM capabilities allow customization for specialized industrial applications.

Our Product Range

Comprehensive selection of dished heads, caps, and pressure vessel components engineered for durability and performance.

Flat Dished Head

Flat Dished Head

  • Material: Carbon Steel, Stainless Steel
  • Dimensions: 25mm–5000mm
  • Standards: SCH.10 to STD
  • Application: Pressure Vessels, Tanks
Elliptical Dished Head

Elliptical Dished Head

  • Custom Diameter: 300mm–5000mm
  • Type: OEM/ODM Available
  • Material: Carbon & Stainless Steel
  • Standard: ASME, ANSI B16.9
Torispherical Dished Head

Torispherical Head

  • Size: 8" to 48"
  • OD: 6mm–200mm
  • Standards: ISO, BIS, ASME
  • Use: LPG Tanks, Reactors
Conical Head

Conical Head

  • Large Diameter: Thick Wall Options
  • Material: Q235B, Stainless Steel
  • Features: High Temp Resistance
  • Application: Boilers, Reactors
Spherical Heads

Spherical Heads

  • Material: Carbon & Stainless Steel
  • Type: Hemisphere End Head
  • Pressure: High-Pressure Rated
  • Standard: Cold Pressed, SGS Certified
Hemispherical Tank Heads

Hemispherical Heads

  • Standard: SA516 Gr70, ASME
  • Thickness: Up to 34mm
  • Forming: Hot Formed, Welded
  • Use: High-Pressure Vessels
Stainless Steel Dished Heads

Stainless Steel Dished Heads

  • Standards: ANSI B16.9, PED
  • Surface: Forged, Coated, Polished
  • Diameter: 25mm–5000mm
  • Application: Food, Pharma, Chemical
Reactor Head

Reactor Heads

  • Type: Oval Manhole, Enamel Cover
  • Material: Carbon & Stainless Steel
  • Custom: OEM Enamel Tank Covers
  • Standards: ASME, ISO
View All 170+ Products

Why Choose Us?

Engineered precision, global compliance, and unmatched customization for your industrial needs.

Industrial Grade

Precision-engineered dished heads built for high-pressure and extreme environments.

Certified Quality

Compliant with ASME, ANSI, ISO, PED, and BIS standards. SGS and third-party inspections available.

Custom Solutions

OEM/ODM services with full customization in size, material, thickness, and surface finish.

Global Supply

Exporting to Europe, Asia, Middle East, and Americas with reliable logistics and documentation.

170+
Product Variants
25mm–5000mm
Diameter Range
30+
Countries Served
15+
Years Experience

Frequently Asked Questions

What materials do you offer for dished heads?

We manufacture dished heads in carbon steel (Q235, SA516), stainless steel (304, 316, 321), dual-phase alloys, nickel alloys, and titanium.

Can you produce custom sizes?

Yes, we offer full customization from 25mm to 5000mm in diameter with thickness up to 50mm. OEM/ODM services are available.

What standards do your products meet?

Our products comply with ASME, ANSI B16.9, ISO, PED, GB, and BIS standards. Third-party inspections (SGS, BV) can be arranged.

What is the lead time for orders?

Typical lead time is 20–30 days depending on order size and customization. Urgent orders can be expedited upon request.

Do you provide surface treatments?

Yes, we offer polishing, sandblasting, coating, and passivation as per customer requirements.

Get in Touch

For quotes, technical inquiries, or custom orders, contact us through the official website.

Dajian Village, Wanshi Town, Yixing City, Jiangsu Province, China
86-180-1532-8118 (Beijing Time: 8:00–18:00)
Business Hours: 8:00 AM – 6:00 PM (Beijing Time)
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