Automatic powder coating line for fire extinguishers, 3,000 pcs/shift – Vina Foam Hung Yen Co., Ltd (VINAFOAM)

KIEUAN has worked with Vina Foam Hung Yen Co., Ltd (VINAFOAM), a fire-extinguisher manufacturer, in two phases: in 2021 we designed, built and installed a fully automatic electrostatic powder coating line for 960 pcs/shift; in 2025 VINAFOAM entrusted us with an upgrade to 3,000 pcs/shift. The upgraded line has been installed and is in operation.

Project information

Phase 1 – Automatic coating line, 960 pcs/shift (2021)

KIEUAN designed the first line as a complete system, from surface pre-treatment to final curing, running continuously on an overhead conveyor:

• Automatic chemical spray tunnel – 9-stage pre-treatment
• Dry-off oven, LPG-fired: 100 – 120 °C
• Fully automatic powder booth inside a dust-proof glass room
• Curing oven, LPG-fired: 180 – 220 °C
• Conveyor load 5 tonnes, speed 1 – 5 m/min
• Automatic powder recovery and feed
• Capacity 960 pcs per 8-hour shift

Fire-extinguisher shells before coating

Loading area on the overhead conveyor

Automatic spray pre-treatment system

Inside the chemical spray tunnel

Chemical tanks and circulation pumps

Automatic powder spray booth

Dust-proof glass room around the spray area

LPG gas burner heating the oven

Oven control panel and burner

Overview of the line at the VINAFOAM plant

Checking products with the customer

Phase 2 – Upgrade to 3,000 pcs/shift (2025)

As demand grew, VINAFOAM asked KIEUAN to redesign the line to more than triple its capacity within the existing building. Main design data:

• Capacity 3,000 pcs per 8-hour shift, line speed 2.5 m/min
• Overhead conveyor approx. 162 – 168 m, load ≥ 5 tonnes, hook pitch 300 mm, max 50 kg/hook
• Automatic powder area: enclosure 9 × 5.5 × 4.8 m, SUS304 booth body 6 × 1.2 × 3.2 m, 2 extraction/filter units plus 2nd-stage bag filters
• Curing oven 30 m long, max 220 °C, 2 gas heaters, recirculation fans
• Dry-off oven 20 m long, max 120 °C
• Exhaust treatment with activated carbon
• Central control, stepless conveyor speed by inverter

Layout of the upgraded line – 3,000 pcs/shift

Results

After the upgrade, capacity rose from 960 to 3,000 pcs/shift, with an even, well-adhered coating over the whole cylinder, less manual heavy work and good control of powder dust and exhaust.

Finished fire extinguishers after coating

See also

• Automatic powder coating line for fire extinguishers
• Video: automatic powder coating line for fire extinguishers

Why KIEUAN?

• Single turnkey contact: consulting, design, manufacturing, installation, trial run, training.
• Long-term partner: from the first line to the capacity upgrade.
• Made in the KIEUAN workshop: we control the schedule and spare parts.

Contact us about painting lines

CÔNG TY TNHH KIỀU AN – KIEUAN Co.,Ltd
Address: Bien Giang Industrial Cluster, Chuong My Ward, Hanoi
Hotline: 0913 203 999 · Tel: +84 24 3371 9786
Email: info@kieuan.vn

Watch more videos on the KIEUAN YouTube channel →

14-11-26 21:01:54

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