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Olsen Technology is a trusted manufacturer of dished ends including Ellipsoidal, Torispherical, Spherical, Hemispherical, and Conical Heads. With over 20 years of expertise, 600+ global clients, and 20+ patents, we deliver unmatched quality and reliability.
Olsen Technology is a company specializing in the production of tank heads. After twenty years of persistence and perseverance, we have accumulated rich practical experience and mastered core production processes.
We operate under the principle of "quality first, credit foremost, service satisfaction and continuous improvement". With more than 20 patents, a production capacity of over 5 million pieces annually, and sales networks spanning more than twenty countries and regions, we serve over 600 satisfied customers worldwide.
From raw material to finished product — precision at every step.
High-precision cutting of raw metal sheets ensures accurate dimensions and clean edges for further processing.
Edges are precisely trimmed to prepare for forming and welding, ensuring seamless joint alignment.
Automated plasma welding ensures strong, consistent, and leak-proof seams on all dished ends.
Cold press techniques (0–3200 mm) shape heads with high dimensional accuracy and surface integrity.
High-quality dished ends engineered for durability, precision, and performance.
Also known as 2:1 elliptical heads, these are widely used in pressure vessels due to their optimal stress distribution and strength-to-weight ratio.
A cost-effective alternative to ellipsoidal heads, ideal for low to medium pressure applications with excellent forming characteristics.
Perfectly hemispherical shape offering maximum strength under uniform pressure, commonly used in high-pressure storage tanks.
Offers the highest pressure resistance among all head types, making it ideal for critical applications in petrochemical and aerospace industries.
Used in vessels requiring easy discharge of contents. Available in various apex angles and can be flanged or welded.
Designed for simple attachment to cylindrical shells, this head type provides a secure and leak-proof connection.
We manufacture non-standard heads based on customer drawings and specifications, including special alloys and dimensions.
All products comply with international standards and come with full documentation including material certs and test reports.
Engineered for performance, precision, and long-term reliability.
Strict quality control from raw material to final inspection ensures every head meets international standards.
Advanced cold-forming techniques enable rapid turnaround without compromising on dimensional accuracy.
Serving over 600 customers across 20+ countries with reliable logistics and after-sales support.
Backed by 20+ patents and continuous R&D, we stay ahead in manufacturing technology and materials.
We manufacture heads in carbon steel (Q245R, Q345R), stainless steel (304, 304L, 316, 316L), and special alloys including duplex and super duplex upon request.
Our cold-forming presses can handle diameters up to 3200 mm. For larger sizes, we offer segmented or hot-formed solutions.
Yes, all our tank heads come with material test certificates (MTC), and we can provide full ASME, PED, or other international compliance documentation.
Absolutely. We accept custom drawings and specifications for non-standard heads, including unique radii, thicknesses, and flange types.
Standard products are delivered within 15–20 days. Custom orders may take 3–6 weeks depending on complexity and material availability.
Reach out to us for quotes, technical support, or custom manufacturing needs.
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