About us

About us

Professional Manufacture of Gearless-design Diaphragm Pressure Gauges

Established in 1993, Chin Ray Industrial Co., Ltd becomes the most famous manufacturer of gearless design “DIAPHRAGM” pressure gauges in Taiwan.

Choosing qualified suppliers、assembly part inspection、strict quality assurance to the whole production process、final quality control to every single pressure gauge, the entire control procedure reaches to superior quality.

Over these years, Chin Ray acquires customers' confidence and thanks for our business partners' faithful support from USA、EU、Japan worldwide, Chin Ray creates annual sales volume growing to millions pieces of pressure gauges.

After replaced Bourdon Tube gauges with innovated diaphragm structure, there's without pinion(gears) inside diaphragm pressure gauge. Due to this patented invention, diaphragm pressure gauge is more sudden pressure endurable, more shock-resistant, more accurate and extending its service life.

Currently, Chin Ray has offered a wide range of gearless-design diaphragm pressure gauges to tire pressure gauges, mini air compressor, tire inflator, cylinder diagnostic tools, floor pump, pneumatic hand tools, medical facility, plump & pipe test gauges for building construction… etc.

After successfully accumulating valuable experience in producing pressure gauges, Chin Ray has built a reputation in Automotive Aftermarket, Bike, Racing, Truck, Medical, Plumbing, Piping & Chemical industries.We now closely co-operate with lots of global well-known suppliers such as Stanley Black & Decker、SKF LINCOLN、Harley Davidson、Spalding、Molten.

Our mission is to contribute ourselves to high-level pressure gauges with precise accuracy and stable quality, suitable and fit to a variety of tools & equipment.Chin Ray always aims for long-term partnership with our customers and chase for win-win future.

To get additional information about Chin Ray, please visit www.hafner.com.tw

Features of Gearless-design Diaphragm Pressure Gauge

● Diaphragm transmission without pinion(gears)
● Sudden pressure or pulse pressure endurable
● Shock-resistant
● Accuracy complying with ANSI/ASME standard B40.100 & EN837-1
● QA team to ensure product quality
● R&D team for consistent product innovation and upgrade.


  •  1993


    Headquarter『Chin Ray Industrial Co., Ltd』& its first factory established

  • 1993


    Brand『Hafner』set up

  • 1998


    The first factory expansion and relocated in Huzinei, Chiayi city

  •  1999


    Owing to sales growth & strong market demand, constructing the second factory in Guandong, China

  •  2005


    Officially promote 2 In 1 tire pressure gauges & thread depth

  •  2007


    Acquire Certificate of ISO-9001

  •  2010


    The second factory expansion and relocated in Shuishang, Chiayi county

  •  2012


    Acquire Certificate of CE

  •  2016


    Obtain Certificate EN12645

  •  2016


    3 In 1 Tire Inflator debut

  •  2018


    Renew Certificate of ISO-9001-2015 & CE

  •  2019


    Pass through certificate of TTQS for employee on-duty training & career development

Chin Ray Industrial Co., Ltd

No. 79-12, Sanjeipu, Guoshing Village, Shuishang Township, Chiayi County 60858, Taiwan.

TEL :+886 5 - 2308186

FAX:+886 5 - 2308212



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Leading manufacturer of diaphragm pressure gauge in Taiwan, gearless diaphragm design, sudden pressure endurable, shock resistant, superior quality, reasonable gauge price