Formed heads · Shandong, China · since 2001

Dished heads and tank end caps, pressed to your drawing.

Elliptical, torispherical, hemispherical, conical and flat heads in carbon steel, stainless and aluminium.

Finished formed heads in the plant, Linyi, Shandong

Finished heads, photographed at the plant in Linyi.

Ø203–3000 mm equipment range
0.6–20 mm custom thickness range
150+ presses on the floor
In-house X-ray, ultrasonic and magnetic particle testing

Two product lines, one press shop

Most of our volume sits in two places. If you buy either of them today, the tooling for the common sizes is already on the floor.

Volume line

Solar and water-heater tank heads

Stainless and carbon end caps for solar water heaters, heat-pump cylinders, wall-hung boilers and storage tanks. This is the plant's oldest line and the one it grew largest on — two decades of volume end cap production before the pressure vessel programme started, at a capacity of around 10 million end caps a year.

Necked, flanged and plain profiles; openings pressed or cut to your drawing
Common cylinder diameters already held in tooling
Drawn and mirror (BA) finishes for exposed cylinders
Batches from a few hundred pieces upward

Solar & water-heater heads

Engineering line

Pressure vessel and process heads

Heads for pressure vessels, air receivers, LNG vehicle cylinders, Dewar flasks, reactors, fermentation and pharmaceutical tanks. Made to your drawing, with the documentation package that goes with it.

EHA 2:1 elliptical, THA torispherical, hemispherical, conical, flat
Q245R / Q345R, 304/304L, 316L, 5083-O aluminium and more
Lift-pad (four-flat) heads and profiled non-standard heads
Dimensional report and material certificate with every batch

Pressure vessel heads

Why buyers keep us on the short list

2001

Forming heads for the solar water-heater industry since the company was founded. EHA / THA pressure vessel heads followed in 2019.

150+

Presses, plus 3D laser cutting, robotic welding and precision necking lines.

Inspection steps from incoming coil to packed head.

ISO 9001

Certified quality system, audited by SGS.

We manufacture through our own factory in Shandong and sell direct. You get the press shop's cost base and export paperwork, without a trading layer in between.

Who you are buying from

Shandong Huabao Solar Energy Equipment Co., Ltd. has pressed heads in Huabao Industrial Park, Banquan, Linyi since 2001. The date matters, so we will be precise: solar water-heater end caps since 2001, and EHA / THA pressure vessel heads since 2019. That is two decades of metal forming, of which the vessel head programme is the newest part. The shop runs an ISO 9001 quality system audited by SGS, and today produces EHA and THA heads in stainless and carbon steel for cylinder, boiler, pressure-vessel, food and pharmaceutical customers.

A second plant is being built for pressure vessel work: Huabao Yefeng, in Junan County, Shandong — 30,555 m² of buildings on a 65.5-mu site, seven press lines up to 10,000 t, spinning equipment sized for heads up to 10 m, and dedicated heat-treatment and non-destructive testing shops. Production is scheduled to start at the end of October 2026.

Stephen Liang — export sales
Email: [email protected]
WhatsApp: +86 150 2122 5198
Phone: +86 130 2652 9372
Factory switchboard: 0539-7686366 (Chinese-speaking — English enquiries to the mobile or email above)
Factory: Huabao Industrial Park, Banquan Town, Linyi, Shandong, China

Factory facts

Head and metal forming plant, operating since 2001
ISO 9001 quality system, SGS audited
150+ presses, 3D robotic laser cutting, robotic welding, precision necking
In-house radiographic, ultrasonic and magnetic particle testing
Heads to GB/T 25198, with ASME and DIN head forms pressed to drawing
Third-party supervision inspection available for domestic-standard work
Huabao Industrial Park, Banquan Town, Linyi, Shandong, China

Inside the forming plant

Photographs taken at the plant this week — not stock images. The plant you see here is the plant that will make your heads, and the one you are welcome to visit.

Forming plant, Huabao Industrial Park, Linyi

Photographs from the shop floor at Huabao Industrial Park, Linyi: press lines, machining and finishing, laser cutting and robot welding, inspection and dispatch.

Head profiles we press

2:1 elliptical head (EHA)

The standard vessel profile with crown height D/4. Pressed in carbon steel, stainless steel and aluminium.

Torispherical dished head (THA)

Crown and knuckle radii to your drawing, from thin stainless end caps to heavier low-pressure tank heads.

Hemispherical head (HHA)

Half-sphere profile with crown height D/2 for high-pressure, LNG and cryogenic equipment.

Conical head or transition (CHA)

Conical bottoms and transitions to your apex angle, knuckle radius and straight flange, with or without openings.

Flat head or tank bottom (FHA)

Flat plates with a formed straight flange for welding, including openings and edge preparation to drawing.

Full dimensional table, standards and tolerances: head types and size range.

What arrives with the shipment

Dimension report per batch — outside diameter, height, straight flange, neck depth, roundness, minimum wall thickness
Material certificate with heat number; chemical and mechanical results tied to the batch
Non-destructive testing reports on request — radiographic, ultrasonic or magnetic particle, done in our own shop
Third-party supervision inspection available for domestic standard work
Export packing: pallet, crate or sea-worthy case, with the markings you need

How a head order runs

Drawing or size list — we check profile, tooling and material
Quote and tooling call — new tooling only if the size is not already on the floor
Sample or first article — dimensioned, sent for your approval
Production — pressing, trimming, necking, welding where required
Inspection and documentation — dimensional, material, NDT
Packing and shipment — FOB Qingdao or your forwarder's terms

Questions buyers ask first

What is your minimum order quantity?

There is no blanket minimum. For sizes already in tooling a trial batch of a few dozen pieces is workable; for a new profile the mould has to be built first, so the sensible starting point is a sample and then a batch that spreads the tooling cost. Tell us the size and quantity and we will say plainly whether it is worth running.

Can you work from our drawing, including tolerances and acceptance criteria?

Yes. Most of our work is to customer drawings. Send the drawing with the enquiry and we will confirm the profile, the material and how we will inspect it before quoting, so there is no argument about acceptance after the batch is made.

Do you supply pressure vessels, or heads only?

Heads and formed parts only. Our customers are the vessel fabricators, boiler makers, cylinder manufacturers and tank producers who weld the head onto their own shell.

How do you handle steel price movement?

Quotes carry a validity period and are based on a stated steel basis. If the validity expires or the steel market moves materially, we re-quote rather than absorb it silently or spring a surcharge on you after the order.

Can we inspect the heads before shipment?

Yes. Your own inspector or a third-party body is welcome at final inspection, and can witness the NDT. Tell us at order stage so the schedule accounts for it.

Request a quote

Send us a drawing, a size list or just the application.

Open the RFQ form [email protected]

Quotes usually go out within one working day. Drawings stay confidential.