About TMM
Founded in 1960 in Taichung. Boilers and pressure vessels built in our own plant.
Who we are
Taiwan Masahisa Machinery (TMM) started in 1960 as Tong Ya Iron Works. Since 1981 we have built once-through steam boilers under technical cooperation with Maeda Iron Works of Japan, and later added waste incinerators, fans, pressure vessels and heat exchangers.
All fabrication, assembly and testing take place in our 10,000 m² plant in Wuri, Taichung. In 2026 we obtained ASME "S" and "U" Certificates of Authorization and National Board registration.
Our quality policy: excellent quality, customer trust, and customers who choose TMM again.
Company facts
- Company
- Taiwan Masahisa Machinery Co., Ltd.
- Chinese name
- 台灣正久機械股份有限公司
- Founded
- 1960 (renamed 1981)
- General Manager
- Cheng Ming Chen
- Capital
- NT$80 million
- Plant area
- 10,000 m²
- Employees
- 45
- Address
- No. 2, Wu-Kuang Rd., Wuri Dist., Taichung City 414, Taiwan
Milestones
From iron works to boiler and pressure vessel manufacturer.
- Founded as Tong Ya Iron Works, supplying machinery and sugar mill equipment.
- Merger with Masahisa Blade Mfg. Co., Ltd. creates Taiwan Masahisa Machinery Co., Ltd. (capital NT$15 million). Technical cooperation with Maeda Iron Works, Japan, for once-through steam boilers.
- Technical cooperation with Kinsei, Japan, for industrial waste incinerators.
- New plant completed at No. 2, Wu-Kuang Rd., Wuri. Pressure vessel manufacturing added.
- Capital increased to NT$20 million.
- Cooperation with Shaoguan Masahisa, Guangdong, China, to build once-through boilers. Capital increased to NT$38 million.
- Capital increased to NT$80 million. Technical cooperation with Murakami Mfg., Japan, for fans and blowers.
- Technical cooperation with SEO Koatsu Kogyo, Japan, for pressure vessels and heat exchangers used in cogeneration and incineration plants.
- Biotech subsidiary set up for koji and brewing yeast; joint strain research at National Chung Hsing University's incubation center.
- Two energy subsidiaries set up to operate biomass-fired steam boilers.
- Self-propelled steam soil sterilizer developed in an industry–academia project with the Taiwan Agricultural Research Institute.
- ASME "S" (power boilers) and "U" (pressure vessels) Certificates of Authorization and National Board registration obtained.
Technology partners
| Year | Partner | Scope |
|---|---|---|
| 1981 | Maeda Iron Works Co., Ltd. (Japan) | Fully automatic once-through steam boilers |
| 1987 | Kinsei Co. (Japan) | Industrial waste incinerators |
| 1994 | Murakami Mfg. Co., Ltd. (Japan) | Fans and blowers |
| 1995 | SEO Koatsu Kogyo Co., Ltd. (Japan) | Pressure vessels and heat exchangers for cogeneration and incineration plants |
Plant and main equipment
Fabrication, assembly and testing are done in-house. Our QC department tests every product before delivery.
- Double-column plano miller
- Heavy-duty vertical lathe
- Horizontal boring machine
- Horizontal drilling machine
- Horizontal lathe
- Radial drilling machine
- 1,200-ton hydraulic press
- 30/5-ton overhead crane
- Dynamic balancing machine
- MIG welding machines
- TIG welding machines
- Arc welding machines
- Plasma cutting machine
- 20 ft floor-type lathe
Need a quote or technical advice?
Send us your application, capacity, working pressure and fuel. We will recommend a model and quote.