Automatic LPG Cylinder Valve Bung Welding Machine

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Model NO.: Longterm Machinery
Production Scope: Product Line
Machine Name: Valve Welding Machine
Production Capacity: 28s/PCS
Cylinder Size: 6kg, 12kg, 25kg, 48kg, or Customized
Cylinder Thickness: 2.65-4mm
Cylinder Diameter: 250~800mm or Customized
Weight: 2 Ton
Application: Control Panel
Power: 1.5kw
Cylinder Material: HP295
Customized: Acceptable
Trademark: LONGTERM
Transport Package: Standard Seaworthy Package
Origin: China
Automatic Socket Welding Machine
This is one part of the automatic production line. Please see the specification below.
Cylinder thickness: 2.65-4mm, speed: 28s/pc

Automatic LPG Cylinder Valve Bung Welding Machine


Automatic LPG Gas Cylinder Production Line

Machine List:
No Machine Name
1 Mechanical Decoiler, Straightening and Blanking Line (with Scrap Shearing Machine)
2 Deep Drawing Machine
3 Auto Flushing Machine for Deep Drawn Heads
4 Automatic Trimming & Polishing Machine
5 Automatic Hole Punching & Logo Making Machine
6 Automatic Socket Welding Machine
7 Automatic Handle Welding Machine
8 Lower End Dish Trimming and Polishing Machine
9 Lower End Dish Automatic Joggling Machine
10 Automatic Bottom Base Welding Machine
11 Assembly and Spot Welding Machine
12 Circumferential Welding Machine
13 LPG Gas Furnace (Heat Treatment)
14 Automatic Online Hydro Testing Machine
15 Drying Oven
16 Shot Blasting Machine
17 Zinc Metalizing Machine
18 Powder Coating Line or Liquid Painting Line
19 Valve Mounting Machine
20 Air Leakage Testing Machine
21 Printing Machine
22 Handle Decoiler & Straightening and Cutting Line
23 Handle Hole Punching Machine
24 Hydraulic Presser – Letter Stamping (Optional)
25 Handle End Bending Machine (Optional)
26 Hydraulic Coding Machine
27 Handle Rolling Machine
28 Handle Top R Forming Machine
29 Handle Low R Forming Machine
30 Vertical Bottom Base Rolling Machine
31 Double Welding Position Welding Fixture
32 Base Forming Machine
33 Hydraulic Precision Sheet Shearing Machine (33KG Only)
34 Sheet Rolling Machine (33KG Only)
35 Automatic Seam Welder (33KG Only)
Production Process
Automatic LPG Cylinder Valve Bung Welding Machine

Mechanical Decoiler, Straightening and Blanking Line

Automatic LPG Cylinder Valve Bung Welding Machine

Deep Drawing Machine




Automatic Flushing Machine for Deep Drawn Heads
After deep drawing, the heads must be flushed before entering into the automatic welding machine.



Automatic Trimming & Polishing Machine with Arms for Both End Dishes
This high-efficient machine adopts air-jacket clamping, automatic feeding, and trimming cut by inclining hob. The width and slope around the edge of the shell are adjustable. This reliable machine is easy to operate and automatically feeds in and out when connected to the conveyor of the production line.
Automatic LPG Cylinder Valve Bung Welding Machine

Automatic LPG Cylinder Valve Bung Welding Machine
Automatic Hole Punching & Logo Making Machine with Arms for Female Half/Top Half
Punch the hole on top of the cylinder and stamp the logo.

Automatic LPG Cylinder Valve Bung Welding Machine
Automatic Socket Welding Machine with Arms
To complete the welding of valve seat ring joints. Ensure uniform forming, good appearance, weld penetration, and weld width meets the technological requirements. The clamping is convenient. Using submerged arc welding technology, girth welding at one time.

Automatic Handle Welding Machine with Arms
Complete cylinder handle grip automatic welding. To ensure concentricity, uniform forming, good appearance, weld penetration, and weld width meet the technological requirements. The clamping is convenient. CO2 gas shield welding process, complete in one time welding.

Automatic Joggling Machine with Arms for Male Half/Bottom Half
Complete with in and out conveyor, and with mechanical arms.

Automatic Bottom Base Welding Machine with Arms
Complete cylinder base girth automatic welding. To ensure concentricity, uniform forming, good appearance, weld penetration, and weld width meet the technological requirements. The clamping is convenient. CO2 gas shield welding process, complete in one time welding.

Longitudinal Seam Welding Machine
Not for 12.5 or even smaller cylinders, only for bigger size cylinders.

Assembly & Spot Welding Machine
To assemble both halves of the cylinder together and get ready for welding.

Double Head Circumferential Welding Machine
Fully automatic welding and monitoring.

Hydraulic Precision Sheet Shearing Machine

Four-Roller Rolling Machine
Includes the loading and unloading.

LPG Gas Furnace
Designed to anneal LPG cylinders by applying flame from a gas burner on the cylinders. It consists of a burner, flaming chamber, smoke collector, rails, chain roller, and exhaling system. Features include adjustable time, self-control thermometer, perfect heat treatment results, and reduced pollution.

Automatic Hydro Testing Machine
For 35kg. One cylinder per pressure gauge, can control separately. Air pressure: 0.6MPa, Testing pressure: 3.2MPa, Motor pressure: 3KW, 8 stations are necessary.

Drying Oven
The cylinder must be dried before blasting.

Shot Blasting Machine
Remove rust, oxide layer, and burr from the pipe. Clean welding slag, showing a metallic luster. Make the surface bright and clean, improve the adhesion force of painting, and enhance anti-fatigue and anti-rust capacity. Improve the inherent quality of the surface and prolong the life of the steel tube.

Zinc Metalizing Machine

Powder Coating Line
Coat the cylinder surface to protect it from rusting.

Valve Mounting Machine

Automatic Air Leakage Testing Machine
Fully automatic leakage testing.

Printing Machine
Print paint, logo, or information.

Conveyor including motor and bends.

Steel Coil Decoiler and Straightening

315 Ton Hydraulic Presser
For pressing the stamp on the handle.

Top Quality 200T Mechanical Punching Machine
Punching the hole from the steel.

Handle End Bending Machine
Bend the handle end (optional).

Handle Rolling Machine
Roll the steel into the handle shape.

160T Hydraulic Presser

Hydraulic Coding Machine

Steel Coil Decoiler and Straightening - shared with handle decoiler and straightening.

Vertical Base Rolling Machine

Double Welding Position Welding Fixture
Can do two weldings at the same time.

Base Forming Machine / 100T Mechanical Punching Machine
Forming the base.

If you are interested and need more pictures and more information, you are more than welcome to contact us. We can also customize the equipment according to your requirements. FAQ: LPG Cylinder Manufacturing Equipment
Q: What size of LPG cylinder can your machine produce?
A: 6kg, 12kg, 15kg, and 50kg LPG cylinders for cooking, and other sizes based on customer requirements.

Q: Can you design machines according to LPG cylinder technical drawings?
A: Yes, please send your technical drawings to us.

Q: What are the benefits of choosing your machines?
A: Our machines are strong, reliable, and suitable for long-term industrial manufacturing.

To enable me to give you the correct proposal for the right machines, please tell me the following details:
We need to know the following information to provide an accurate quotation:
1. Technical drawing of the cylinders you want to make.
2. What size of cylinder you want to produce? (6kg, 12kg)
3. What diameter and thickness of the cylinder you want to make?
4. Are you new in this area, or do you already have some machines in the workshop?
5. Your required capacity, i.e., how many pieces and sizes you want to make per day?

Customer Reference List
1. TK Group in Bangladesh
2. Hangzhou Yuhang Zhangshan Steel Cylinder Co., Ltd. http://www.gangping.com, it is the third-largest LPG gas cylinder manufacturer in China, with a daily output of 18,000 pcs, including all sizes from 2kgs to 50kgs.
3. TPA, which manufactures extremely high-quality LPG cylinders for North America, Europe, UK, and Australia. http://www.tpagas.com, we supplied an automatic welding line for their China plant in Dongguan. Now, we are building a new LPG gas cylinder factory in Vietnam, Hangphone, which will be set up and commissioned by the end of August 2017.
4. Shandong Huanri Group Co., Ltd., http://en.huanrigroup.cn/products_list/pmcId=24.html, they are the largest and strongest cylinder manufacturer in China. They purchased our machines for both 12.5kg and 15kg manufacturing, as well as 50kg manufacturing.
5. AYGAZ in Turkey, www.aygaz.com.tr, last week, they ordered the complete welding line from us after comparing with SAW welding.
6. Manchester Tank from USA
7. Sahuwala Cylinder in India
8. Delta LPG Limited (SEACOM Group), they are setting up a new plant, and we will be responsible for their 12.5kg and 33kg production lines. --- Let me know if you'd like this formatted for a website or product listing!

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