**Automatic Bottom Base Welding Machine**
This is a key component of the automatic production line. Below are the specifications:
- **Cylinder Thickness**: 2.65–4mm
- **Speed**: 28 seconds per piece
**Automatic LPG Gas Cylinder Production Line**
Here is a list of machines in the production line:
| 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 welding machine.
**Automatic Trimming & Polishing Machine with Arms for Both End Dishes**
This efficient machine uses air-jacket clamping, automatic feeding, and trimming via an inclining hob. The edge width and slope can be adjusted. It is reliable, easy to operate, and automatically feeds in and out when connected to the production line conveyor.
**Automatic Hole Punching & Logo Making Machine with Arms for Female Half/Top Half**
Punches holes 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, proper weld penetration, and width that meets technical requirements. Uses submerged arc welding technology for one-time girth welding.
**Automatic Handle Welding Machine with Arms**
Completes automatic welding of the handle grip. Ensures concentricity, uniform forming, good appearance, and proper weld penetration and width. Uses COâ‚‚ gas shield welding for 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 automatic girth welding of the cylinder base. Ensures concentricity, uniform forming, good appearance, and proper weld penetration and width. Uses COâ‚‚ gas shield welding for 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 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. Features adjustable time, self-controlled thermometer, and pollution-free operation.
**Automatic Hydro Testing Machine**
For 35 kg cylinders. Each cylinder has its own pressure gauge, allowing separate control. Specifications: Air pressure 0.6 MPa, Testing pressure 3.2 MPa, Motor pressure 3 kW, 8 stations required.
**Drying Oven**
Used to dry the cylinder before blasting.
**Shot Blasting Machine**
Removes rust, oxide layer, and burrs. Cleans welding slag, leaving a metallic luster. Improves paint adhesion, anti-fatigue, and anti-rust properties, enhancing surface quality and extending the life of the steel tube.
**Zinc Metalizing Machine**
**Powder Coating Line**
Protects the cylinder from rusting by coating its surface.
**Valve Mounting Machine**
**Automatic Air Leakage Testing Machine**
Fully automatic leakage testing.
**Printing Machine**
Prints paint, logo, or information on the cylinder.
**Conveyor System Including 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 from the steel.
**Handle End Bending Machine**
Bends the handle end (optional).
**Handle Rolling Machine**
Rolls the 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.
If you're interested and need more pictures or detailed information, feel free to contact us. We can also customize the equipment to meet your specific needs.
### 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, 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 your machines?**
**A:** Our machines are strong, reliable, and ideal for long-term industrial manufacturing.
To help us provide the right proposal for the correct machines, please provide the following details:
1. Technical drawing of the cylinders you want to make.
2. Size of cylinder you want to produce (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—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
One of China’s top three LPG gas cylinder manufacturers, producing 18,000 units daily across all sizes from 2kg to 50kg.
3. **TPA** – http://www.tpagas.com
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 gas cylinder factory in Vietnam, set to be completed by August 2017.
4. **Shandong Huanri Group Co., Ltd.** – http://en.huanrigroup.cn/products_list/pmcId=24.html
One of the largest and strongest cylinder manufacturers in China. They 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 it with SAW welding.
6. **Manchester Tank from USA**
7. **Sahuwala Cylinder in India**
8. **Delta LPG Limited (SEACOM Group)**
Setting up a new plant, and we are responsible for their 12.5kg and 33kg production lines.
ABS sheet for bending processing
ABS material is a thermoplastic polymer material with high strength, good toughness, and easy processing and shaping. It has excellent impact resistance, heat resistance, low temperature resistance, chemical resistance, and electrical performance. ABS material also has the characteristics of easy processing, stable product size, good surface gloss, easy coating and coloring, and can be subjected to secondary processing such as surface spraying, electroplating, welding, hot pressing, and bonding.
Customized ABS bending parts
skyshields(suzhou)thermoforming tech.co.ltd , https://www.skyshields.com