Machines Needed for Making PPE Coveralls

PPE coverall kits required for health professionals attending to infected patients in isolation wards and the Intensive Care Units (ICUs). Coveralls, or bodysuits, are glued at the seams using special tape and a sealing machine to prevent contaminants from getting in.  Sewing machines and other machines required for manufacturing making PPE coverall items include -

1. Cutting machine - You need fabric cutting machines. You can use standard cutting machines, like straight knife cutting machines.

2. Sewing machine - For joining coverall components (assembling parts) you need single needle lock stitch sewing machines. Alternatively, you can use overlock machines for joining parts. These machines are available with all garment manufacturers.

"We are using the same line layout and sewing machines, we used to in making jumpsuits or baby rompers", said by a PPE coverall manufacturer.

3. Hot air seam sealing machine - This is a very important machine for ensuring PPE quality. After joining components, each seam needs to be sealed using a hot air sealing machine.

Hot Air sealing machine (image source:

One seam sealing machine can seal about 100-110 suits a day and costs about $5,000 (Rs 3.8 lakh) a unit.

The PPE coveralls can be also made directly using the hot-air sealing machine, without pre-sewing of components.

Why hot air seam sealing? 

When seam tape is heated up, the adhesive on the tape is activated. This activated tape is applied on the waterproof coating or lamination of the fabric seam under pressure. When cooled, a strong bond is formed between the tape and the seam. This bond is so strong that it will prevent pressurized water from penetrating the sewn seam. As a result, a waterproof seam is produced.

Prasanta Sarkar

Prasanta Sarkar is a textile engineer and a postgraduate in fashion technology from NIFT, New Delhi, India. He has authored 6 books in the field of garment manufacturing technology, garment business setup, and industrial engineering. He loves writing how-to guide articles in the fashion industry niche. He has been working in the apparel manufacturing industry since 2006. He has visited garment factories in many countries and implemented process improvement projects in numerous garment units in different continents including Asia, Europe, and South Africa. He is the founder and editor of the Online Clothing Study Blog.

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