LPG Cylinder Production involves several process steps starting from forming to final testing that can be streamlined into the following lines:

1. Circle Blanking Line                                      2. Body Forming Line
3. Welding Production Line                              4. Heat Treatment and Hydrostatic Testing Line
5. Shot Blasting and Surface Coating Line     6. Finishing Line with Pneumatic Testing Line

Getweld supply all the machineries for the whole production line. Give you professional solutions for your new LPG Cylinder plant. We also could help you update your old plant with advanced automatic technology.

1. Circle Blanking Line
De-coil and punching machine for small round sheet cutting from big sheet(material preparing for shell)
Plate Thickness: 2-4mm 
Width of plate: Max.1170mm
ID of steel coil: 450-800mm 
OD of steel coil: Max.1800mm 
Weight of steel coil: Max.25T
Coil blanking specification: Ø370-Ø615mm 
Blanking period: 12s/time including auxiliary time

2. Body Forming Line
Body forming line according Deep Drawing, Trimming, Polishing, and Necking, make the circle blanks to half and make it suitable for welding.

Deep Drawing Machine (Streching /Head Forming Machine)
1. Nominal force 3000KN
2. Drawing force 2000KN
3. Blank holder force 250×4KN
4. Max. fluid working pressure 25MPa
5. Stroke of drawing slide 700mm
6. Stroke of blank-holder slide 400mm
7. Max. daylight of drawing slide 1400mm 

Trimming machine 
1. Motor power: 5.5KW 
2. Air pressure: 0.6Mpa 
3. Process time: 20s 
4.The weight of machine: 1.5tons

Necking in machine 
This machine is specialized in producing the head plate and shrinking mouth of LPG cylinder .It adopts pneumatic loading& clamping, cam control, automatic feeding, continuous working. It is also suitable for air compressor storage air compressor storage tank reducing mouth. (It can design and manufacture according to the actual requirement)

3. Welding Production Line

Valve Seat Welding Machine
Rated voltage: 220V 
Motor power: 0.25kw 
Air pressure: 0.6Mpa

Foot Ring (bottom base) Welding machine
Current: AC380V+N 
Motor power: 0.55kw
Air cylinder pressure: 0.5-0.7Mpa

Guard Ring (handle) Welding Machine
Rated voltage: AC380V
Motor power: 0.55kw
Air cylinder pressure: 0.5-0.7Mpa

Assembly Machine
To assemble both halves of the cylinder together and get ready for welding
Technical data
Cylinder diameter: 250mm 
Air cylinder pressure: 0.5-0.7Mpa

Circumferential Welding Machine
This machine is applicated to automated MAG circumferential welding for LPG cylinder,fire extinguisher bottle,etc.
Welding Length: Max.1500mm Ø: 250-400mm 
Thickness: 2.5-6mm
This machine price include 1 set panasonic welding machine( Model:GL3-500A),1 set cooling water device, welding seam tracker.
Producing capacity: 250 pcs/8h

4. Heat Treatment and Hydrostatic Testing Line

Heating Treatment
This furnace is designed to anneal LPG cylinders by applying flame from gas burner on the cylinders. It composes, burner, flaming chamber, smoke collector, rails, chain roller, exhaling system.
It feature includes, adjustable time, self-control thermometer, perfect heat treatment result and fire off pollution.
Technical data
Producing efficiency: 75pcs/h
Feeding type: Chain drive/cylinder feeding
Cleaning size: Ø320*700mm------Ø420*1250mm
Dimension:(L*W*H):12500*1390*1560mm removable transport

Hydrostatic Testing Machine
The machine is special for steel cylinder of liquefied gas cylinders, applicable to manufacturers and testing station for wuthstand voltage test on cylinder. Irrigation, pressurization, pressure, maintaining centralized control and automatic pouring completed by using water pump, equipped with a water tank, water can be recycled.
Technical data:
Pneumatic pressure:0.6Mpa
Motor power: 3kw
Hydrostatic test pressure: 3.2Mpa 
Weight: 1.1T

5. Shot Blasting and Surface Coating Line

Shot basting Machine
Shot Blasting Machine for LPG Cylinder are predominantly used to clean LPG/CNC/GAS cylinder in a continuous through feed process, remove remains of casting sand and cores, rust, old paint, visible signs of welding, eliminate surface stress, improve the fatigue strength of the workpiece, increases workpiece film adhesion of the paint job, and ultimately achieve the aim of improving the quality of surface and internal, prepare for surface protection 
Produing efficiency: 80-120pcs/h
Hot blasting machine: 2 sets
Hoist motor power: 2.2KW 
Total power: 31.2KW
Weight: 16T 
Workpiece size: Ø320mm*680mm
Machine dimension: (L*W):7885*2460mm

Spraying/Coating/Paintng Machine
The spraying producing line for U track,using electric or natural gas,fuel oil,coal heating,hot air circulation,the allocation of fixed automatic spray gun 4,manual gun 1.Spraying powder or paint on the steel cylinders apperance.The cylinder into the oven drying after spraying
Working voltage:380V 50HZ
Air pressure:0.4-0.6Mpa
Total power:15KW
Working efficiency:180Pcs/jr

6. Finishing Line with Pneumatic Testing Line

Valve Fixing/ Mounting Machine
Motor power: 2.2KW   
Motor speed: 1400r/min
Work spindle speed: 15.5r/min
Working air pressure: 0.5-0.6Mpa
Consumption per hour: 1.14m3 
Clamping cylinder stroke: 120mm
Rotation speed ration: 1:59
Weight: 0.9T

Air leakage testing machine
Air pressure: 0.6Mpa
Air test pressure: 2.2Mpa 
Holding time: 60s
Motor power: 3KW
Weight of machine: 1.8ton
Size of cylinder available: 320*700-420*1250mm

Printing machine
Efficiency: 120 pcs/h
Air source pressure: 0.5-0.6MPa