HIPPO MACHINERY - Your First Choice for Tube End Former

Hippo Machinery specialized in tube end forming field and has over 16 years of experience in a wide variety of end-uses and industries. Our knowledge and experience make us the best choice for all of your tube end forming needs. 

Hippo provides servo-driven and hydraulically-driven tube end forming machines. These tube end formers are designed with the latest technology and adopt NC or PLC control systems, tool shifting can be controlled by servo motor, the precision could reach ±0.015mm, which makes the performance of the machine more excellent and more reliable.

Hippo can shape pipes with a diameter from Ø4mm to Ø200mm. The tube ends can be made into various shapes, whether simple or complex, such as swaging, reduction, expansion, flaring, flanging, beading, bulging, chamfering, rounding, tapering, etc., to meet most applications and design requirements. All types of metals (such as carbon steel, aluminum, copper, stainless steel, galvanized, etc.) can be processed by tube end forming. Our end-forming machines are widely used in automobiles, furniture, construction, air conditioning, medical and other industries.

Contact us today for more information on tube end forming and also get a free quote!

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to see how we can help your manufacturing processes

Single Head End Forming Machine

Single head tube end forming machine is most often seen in most tubular part manufacturing, we can equip multiple stations to the machine to meet with your end forming needs.

Double Head Tube End Former

At Hippo Machinery, we also have twin head end forming machine for larger production volume applications which can form both ends of a tube simultaneously, greatly increase the flexibility while decreasing production time

Automation Production Line

HIPPO can provide both simple stand-alone tube pipe end forming machines (single-head or simultaneous working double-head machinery) and complex automatic production systems tailored to your needs for mass production. Starting from the layout design, we can integrate automatic feeding, auto lubrication, welding seam recognition, ultrasonic cleaning, lathe processing, laser coding, automatic unloading, etc. into your pipe end forming machine,to help you improve production efficiency and product stability,repeatability.

Optional Functions We Can Offer

  • We can customize auto loading and unloading devices from side and top for unmanned automatic operation, which can help you to increase accuracy, productivity and maximize system availability.(Click below product to view more)
  • An infrared alarm device can be added to provide a completely safe environment for your operator.  (Click below product to view more)


  • We can integrate tube cut-off function to provide a complete easy-to-use tube fabrication system enabling you to reduce labor cost. (Click below product to view more) 

Over 100+ Projects

We Help you Create Your Desired Shapes

Hippo Tube End Forming Machine can help you form various end shapes, below are the common ones.

tube end forming process

Why Us?

Rich Experience in Tooling

Our in-house technician is experienced in design and development of tooling for your specific applications. 

The core technology of the tube end-forming machine lies in the design of the tools. Tooling must be built according to your specific end-forming technique and also your tube material type. Tooling material type, surface coating, hardness is important in tooling specifications. A complete set of tube end forming tools includes punching die, mandrel (in some cases), and clamping die. Tools can be manufactured in various steels in accordance with customer’s requirements, the finished tools coated in wear resistant materials where required.

For tube end reduction, we adopt alloy tungsten steel to make the tools, the lifetime is much longer than other steel molds, the price is also more expensive. For tube end expansion and beading, we usually use Cr12 to make. We do our best to make sure the tools are durable and repeatable and help you obtain high-quality products within tolerance. 

We Work On Any Metal

Basically, we can perform tube end forming processing on any metal, includes carbon steel, mild steel, stainless steel, copper, brass, aluminum, steel alloys, nickel, titanium.

Different materials will react differently even during the same process. And the pressure or force required to form different metal is not same according to the wall thickness and type of material. For example, copper is easier to be end formed than stainless steel. The material is seamless or ERW pipes, the material hardness, and thickness, can this material accommodate the required amount of deformation are important to consider, because they are critical in the determination of whether a shape can be produced without excessive spring back or material cracking.

When you come to us,  we will combine these experience and give you professional suggestions.


You might also be interested in these TOPICS


What is tube end forming machine?

Metal tubes are cut and made into various tubular parts. In many cases, one or both ends of the tube need to be formed to fit other components(eg. other tubes, hoses or flanges). Tube end forming machine is such equipment that used to change the tube ends size and shape. 


When to apply end forming process?

Sometimes we need to shape the end of the bent tube. We can end-form a product before or after bending, this depends on your part being created. If you end-form the workpiece after bending, then a customized curved clamp die will be needed for your project.


Tube end forming machine types

They are several methods used in end forming, common ones are segmented tool sizing and ram forming. For lower volume products without high end forming precision requirements, you can choose a segmented sizer machine. There are eight finger tools in this machine, they are powered by a mechanical drawbar, which uses pulling force to perform the tube end expanding or reducing. If you are looking for a powerful and high-precision machine, you have to consider a ram-type tube end-forming machine. In the Chinese market, ram-type tube end forming machine is the most common. Ram type tube end is capable of producing tubes with critical tolerances, concentricity, and offsets.


Tube end forming machine advantages

The tube end forming machine can realize the connection or tight fit of two parts. For fluid and gas transfer systems, tube end former can enhance the strength of the tube, improve connectivity, and improve sealing capabilities.  

It can also replace welding and other processes, avoid turning, shorten processing time, improve assembly efficiency, and obtain good accuracy.


Tube end forming applications

Tube end formers are widely used in a variety of fabricating applications where multiple tubes must be connected to join systems or assemblies, such as 

  • Automotive
  • Boating
  • Trucks
  • Motorcycle
  • Highway and Transportation
  • Aerospace & Aircraft
  • Air Conditioner
  • HVAC
  • Refrigeration radiators piping
  • Fluid transfer heat exchanges
  • Hydraulic pipes
  • Gas filter stems
  • Electronic parts
  • Lighting Products
  • Plumbing Connections         
  • Metal Furniture
  • Decorative Bath and Kitchen
  • Medical Device and Equipment  
  • Fitness Equipment 
  • Construction industry, like formwork, scaffolding 
  • Other engineering applications


Tube end forming process

The following video shows how the tube end forming equipment works.

1. Using manual or automatic loading method to put the tube into the clamp die

2. Clamp die hold the tube securely (the clamping die is divided into upper and lower parts, the upper clamping die is connected with the piston rod of the clamping cylinder, the lower die is installed on the mainframe.)

3. The punches pushed by hydraulic cylinder hit towards the stationary tube and form the desired shape on tube end.

Depending on the material thickness, shape required, and tolerances, multi stations might be needed to progressively end-forming the tube to meet the specifications. 

Besides,when forming some high precision shapes, a mandrel is necessary to support the tube.


For tube reduction, the die set is made of alloy tungsten steel, the lifetime is much longer than other steel molds, the price is also more expensive.
For tube expansion and beading, we use Cr12 to make the dies.

Yes. All our tube end forming machine comes with a back stopper, it’s the standard configuration. But the position is adjustable. And it’s also optional, you can choose to remove it if you have very long pipes to process.

back stopper

(a) For end forming machine, we usually use drawing compounds lubricant, it mainly plays the role of lubrication and cooling during the processing process, which improves the workpiece finish, effectively extend the tooling life; and it’s easy to clean.
(b)We usually manually brush it to the pipe surface. The drawing compounds lubricant is very thick, and automatic lubrication requires a high-pressure system and a constant temperature device, which is costly. If the customer needs it, we can also install it for you.
(c) The machine is equipped with a water cooling system, which can cool down the machine’s hydraulic oil temperature to make sure it works for a long time. 

water cooling

The main difference between servo motor control and hydraulic control is accuracy, not speed.
If use servo motors, the mold shifting accuracy could reach ±0.015mm, hydraulic controlled mold shifting accuracy reaches ±0.1mm.
Usually, for products that require multi-station(at least three stations), we would recommend using servo motors. The servo motor is more expensive.

The standard vice clamp length is 165mm. If your pipe is shorter than this, we will customize the tools according to your product. The clamp die includes one upper clamp die and one lower clamp die.

tube end forming dies

Our standard machine is equipped with a water cooling system. If you want, we can make the air cooler for you.

There are two reasons for this.
1. Mitsubishi panel price is 3-5 times that of WeinView (we currently using from Taiwan), while displaying effect is same, so no manufacturers choose Mitsubishi here.
2. Mitsubishi Panel programming is very complicated, while WeinView is much easier. We have been adopting WeinView for many years, it’s mature and stable.

a. When the station hits towards the pipe, the clamp will not slide, so no strains. As long as the clamp groove is clean, no rubbish(like iron chippings, etc) in it, the surface of the pipe will not be damaged. Otherwise, the pipes might have pit after end forming.
b. In case the clamp groove got dirty, you can use a dishcloth to wipe the clamp groove( or a high-pressure air gun). Just pay more attention, no big problem.
c. We can’t use engineering plastic clamp here, that would be way too soft, can’t resist the impact force from the station. This is decided by the end forming technology.

Yes. Our tube end forming machine can create precision round, square, and rectangular shapes to specifications. One thing to reminder, when reducing rectangular tubes, it is necessary to add some notches on the tube surface. Rectangular tube reduction is much harder than the round pipe. When squeezing inward, the tube wall will get thicker, the material will crease and drummed into a line. Add notches will ease this issue and will not affect the assembly. You can refer to this effect as the photo.


Let us use our 16 years experience to help your business.

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