Automatic powder coating line for LPG cylinders, 600 cylinders/shift – PV GAS North Ha Tinh

KIEUAN designed, manufactured, installed and handed over an automatic electrostatic powder coating line for LPG cylinders to Northern LPG Trading JSC (PV GAS North) in Ha Tinh, Vietnam. The line was handed over on 28 March 2014 with a design capacity of 600 cylinders per shift and has been running reliably for more than 10 years.

Project information

Client	Northern LPG Trading JSC (PV GAS North)
Location	Ha Tinh, Vietnam
Product	12 kg and 45 kg LPG cylinders
KIEUAN scope	Design, manufacturing, installation, commissioning, handover and operator training
Design capacity	600 cylinders per shift
Timeline	Design Sep 2013 · Installation Dec 2013 – Feb 2014 · Trial run Mar 2014 · Handover 28 Mar 2014

Requirements and design

The client needed a uniform, durable coating for LPG cylinders within limited factory floor space. KIEUAN designed the complete system (drawing HTSTĐ-02, September 2013) around three key elements:

Continuous overhead chain conveyor, over 23 m long, carrying cylinders through every stage.
4.5 m powder spray booth inside a 6.8 m dust-proof glass enclosure, with automatic electrostatic guns and a manual touch-up station.
20 m elevated curing oven (5.14 m high) to save floor space, with burner, heat-recirculation fan and insulated panels.

Elevation drawing of the LPG cylinder powder coating line designed by KIEUAN
Equipment elevation drawing (HTSTĐ-02, Sep 2013)

Manufacturing and installation

From December 2013, the KIEUAN team fabricated and installed on site: steel structure, conveyor track, dust-proof glass room, spray booth, curing oven, burner and control panel.

Installing the steel structure and elevated curing oven
Steel structure and elevated curing oven (Feb 2014)

Dust-proof glass enclosure around the spray booth

Curing oven burner Coating line control panel
Oven burner and control panel

Full-line trial run (March 2014)

Cylinders are hung on the conveyor, pass through the booth with automatic electrostatic guns, receive manual touch-up in hard-to-reach areas, then enter the curing oven. The oven temperature is automatically controlled at about 200°C.

Trial run of the LPG cylinder powder coating line
Trial run (24–25 Mar 2014)

Automatic electrostatic powder spray guns
Automatic electrostatic spray guns

Burner and curing oven temperature controllers

Handover and production

On 28 March 2014, KIEUAN handed over the line, trained the plant's operators and put it into production. The line has now been running reliably for more than 10 years.

Coating line handed over to PV GAS North
The line on handover day (28 Mar 2014)

Finished LPG cylinders on the overhead conveyor
Finished cylinders on the conveyor

Powder-coated LPG cylinders
Cylinders after coating and curing

Results

600 cylinders per shift – design capacity.
20 m oven at about 200°C – automatic temperature control.
10+ years in operation – since 2014.

Contact us

KIEU AN CO., LTD – KIEUAN
Address: Bien Giang Industrial Cluster, Chuong My Ward, Hanoi, Vietnam
Hotline: 0913 203 999 · Tel: 024.3371 9786
Email: info@kieuan.vn

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11-11-26 11:22:53