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Company profile >>

Wuxi Longterm Machinery Technologies Co., Ltd is the leading supplier of complete turnkey solutions for the LPG cylinder manufacturing. The whole process from blanking to powder coating and finishing line. With professional technical back ground, we have been engaged in welding research since 1975.


Made In China, Serves The World.
Devote To The Leader Of LPG Gas Cylinder Maufacturing Industry!

Double head welding machine
cylinder body welding machine
cylinder body welding machine
Double head circumferential seam welding machine
Single head body welding machine
Single head circumferential seam welding machine
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⇒ What size of LPG cylinders your machine can produce?
6kg, 12kg,15kgs and 50kgs LPG cylinder for cooking and other size according customers' requirement.

⇒Can you design machines according LPG cylinder technical drawing?
Sure, please send your technical drawing to us.

⇒What are the benefits to choose your machines?
Our machines are strong and reliable for long term industrial manufacturing

Information we need

  • Technical drawing/picture of the cylinders you want to make?
  • Are you new in this area or you already have some machines in the workshop?
  • Capacity you require, i.e. how many pieces and sizes you want to make per day?

Production Process >>

Auto. single-head body welding machine


  • Welding speed: 360 pcs/8 hours/set
  • Loadng & Unloading time: 20 Second/pcs
  • Welding wire consumption: Save 40% welding wires compared with SAW
  • Power consumption: Save 40% electricity compared with SAWBody welding machine

Auto. double-head body welding machine


  • Feature: Cylinder size: 20, 25, 33, 35, 45, 50 etc.
  • Capacity: 250 pcs/8 hours Welding process:
  • Double-head MAG wleding, with vision tracking device to inspect the weld.

Body welding>>

Our circumferential seam machine is fully automatic with mechanical arms and tracing device.One person can take care of 6 sets of circumferential seam welding machine at the same time.

Smooth Welding Seam >>




With professional technical background, we have been engaged in welding research since 1975.Our world-class R&D team ensures that we use the most innovative design and manufacturing techniques for our machines.


We also offer professional field installation, commissioning, and training to confirm that each client is delivered high-quality machinery and is able to use it properly.


After sale

For the futures, product quality, logistics and other issues, establish a sound after-sales service process, 7X24 hours service.