**Semi-Automatic Handle Welding Machine**
This is one part of the fully automated production line. Please see the specifications below:
- **Cylinder Thickness:** 2.65–4 mm
- **Welding Speed:** 1.5 pcs/min
**Automatic LPG Gas Cylinder Production Line**
Here is a list of key machines used in the LPG cylinder manufacturing process:
| No | Machine Name |
|----|--------------|
| 1 | Mechanical Decoiler, Straightening and Blanking Line (with Scrap Shearing Machine) |
| 2 | Deep Drawing Machine |
| 3 | Automatic 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**
**Mechanical Decoiler, Straightening and Blanking Line**
**Deep Drawing Machine**
**Automatic Flushing Machine for Deep Drawn Heads**
After deep drawing, the heads must be flushed before entering the automatic welding machine.
**Automatic Trimming & Polishing Machine with Arms for Both End Dishes**
This high-efficiency machine uses air-jacket clamping, automatic feeding, and trimming by an inclining hob. The width and slope around the edge of the shell are adjustable. It is reliable, easy to operate, and automatically feeds in and out when connected to the conveyor system of the production line.
**Automatic Hole Punching & Logo Making Machine with Arms for Female Half/Top Half**
Punches the hole on top of the cylinder and stamps the logo.
**Automatic Socket Welding Machine with Arms**
Completes the welding of valve seat ring joints. Ensures uniform forming, good appearance, weld penetration, and weld width that meet technological requirements. Clamping is convenient. Uses submerged arc welding technology for girth welding in one go.
**Automatic Handle Welding Machine with Arms**
Completes the automatic welding of the cylinder handle grip. Ensures concentricity, uniform forming, good appearance, and weld penetration and width that meet technological requirements. Clamping is convenient. Uses COâ‚‚ gas shield welding process, completed in one-time welding.
**Automatic Joggling Machine with Arms for Male Half/Bottom Half**
Equipped with in and out conveyors and mechanical arms.
**Automatic Bottom Base Welding Machine with Arms**
Completes the automatic girth welding of the cylinder base. Ensures concentricity, uniform forming, good appearance, and weld penetration and width that meet technological requirements. Clamping is convenient. Uses COâ‚‚ gas shield welding process, completed in one-time welding.
**Longitudinal Seam Welding Machine**
Not suitable for 12.5 kg or smaller cylinders; designed for larger sizes.
**Assembly & Spot Welding Machine**
Assembles both halves of the cylinder together and prepares them for welding.
**Double Head Circumferential Welding Machine**
Fully automatic welding and monitoring.
**Hydraulic Precision Sheet Shearing Machine**
**Four-Roller Rolling Machine**
Includes loading and unloading.
**LPG Gas Furnace**
Designed to anneal LPG cylinders using flame from a gas burner. Composed of a burner, flaming chamber, smoke collector, rails, chain roller, and exhaust system. Features include adjustable time, self-controlled thermometer, perfect heat treatment results, and reduced pollution.
**Automatic Hydro Testing Machine**
For 35 kg cylinders. Each cylinder has its own pressure gauge and can be controlled separately. Specifications include:
- Air Pressure: 0.6 MPa
- Testing Pressure: 3.2 MPa
- Motor Pressure: 3 kW
- 8 stations required
**Drying Oven**
The cylinder must be dried before blasting.
**Shot Blasting Machine**
Removes rust, oxide layer, and burrs from the pipe. Cleans welding slag, revealing a metallic luster. Makes the surface bright and clean, improves paint adhesion, and enhances fatigue and rust resistance.
**Zinc Metalizing Machine**
**Powder Coating Line**
Coats the cylinder surface to protect it from rusting.
**Valve Mounting Machine**
**Automatic Air Leakage Testing Machine**
Fully automatic leakage testing.
**Printing Machine**
Prints paint, logo, or information on the cylinder.
**Conveyor System**
Includes motor and bends.
**Steel Coil Decoiler and Straightening**
**315 Ton Hydraulic Presser**
Used for pressing the stamp on the handle.
**Top Quality 200T Mechanical Punching Machine**
Punches holes in steel sheets.
**Handle End Bending Machine**
Bends the handle end (optional).
**Handle Rolling Machine**
Rolls steel into the handle shape.
**160T Hydraulic Presser**
**Hydraulic Coding Machine**
**Steel Coil Decoiler and Straightening**
Shared with the handle decoiler and straightening system.
**Vertical Base Rolling Machine**
**Double Welding Position Welding Fixture**
Can perform two welds at the same time.
**Base Forming Machine / 100T Mechanical Punching Machine**
Forms the base of the cylinder.
If you are interested and need more pictures or detailed information, feel free to contact us. We also offer custom equipment tailored to your specific requirements.
**FAQ: LPG Cylinder Manufacturing Equipment**
**Q: What size of LPG cylinder can your machine produce?**
**A:** Our machines can produce 6kg, 12kg, 15kg, and 50kg LPG cylinders for cooking, as well as other sizes based on customer requirements.
**Q: Can you design machines according to LPG cylinder technical drawings?**
**A:** Yes, please send us your technical drawings.
**Q: What are the benefits of choosing our machines?**
**A:** Our machines are strong, reliable, and ideal for long-term industrial use.
To help us provide the right proposal, please share the following details:
1. Technical drawing of the cylinders you want to produce
2. Size of cylinder you want to make (e.g., 6kg, 12kg)
3. Diameter and thickness of the cylinder you want to make
4. Are you new to this industry or do you already have some machines in your workshop?
5. Your required capacity, i.e., how many pieces and sizes you want to produce per day
**Customer Reference List**
1. TK Group in Bangladesh
2. Hangzhou Yuhang Zhangshan Steel Cylinder Co., Ltd. (http://www.gangping.com) – Third largest LPG gas cylinder manufacturer in China, daily output of 18,000 pcs.
3. TPA – Produces high-quality LPG cylinders for North America, Europe, UK, and Australia. We supplied an automatic welding line for their China plant in Dongguan. We are currently building a new LPG cylinder factory in Vietnam, scheduled to be commissioned by the end of August 2017.
4. Shandong Huanri Group Co., Ltd. (http://en.huanrigroup.cn/products_list/pmcId=24.html) – Largest and strongest cylinder manufacturer in China, purchased our machines for 12.5kg, 15kg, and 50kg production.
5. AYGAZ in Turkey (www.aygaz.com.tr) – Recently ordered a complete welding line after comparing with SAW welding.
6. Manchester Tank (USA)
7. Sahuwala Cylinder (India)
8. Delta LPG Limited (SEACOM Group) – Setting up a new plant; we are responsible for their 12.5kg and 33kg production lines.
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