Once-Through Steam Boilers
Fully automatic steam boilers for process plants. Boiler efficiency 88% or higher.
200–1,500 kg/h (441–3,307 lb/h)
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Since 1960 · Taichung, Taiwan
Boiler and pressure vessel manufacturer in Taiwan
Taiwan Masahisa Machinery (TMM) designs and builds once-through steam boilers, thermal oil boilers, pressure vessels, heat exchangers and fans in its own Taichung plant. ASME "S" and "U" certified since 2026.
1960Founded as Tong Ya Iron Works
10,000 m²Own plant in Wuri, Taichung
1,200 tMaximum manufacturing capacity
ASME S · UStamps and NB registration (2026)
Products
Main products
Each product page lists specification ranges, full model tables and downloadable catalogs.
Hot Water Boilers
Hot water and space heating for hotels, hospitals, dormitories and aquaculture.
32,000–430,000 kcal/h (37–500 kW)
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Thermal Oil Boilers
High process temperatures at low pressure for heating and drying.
100,000–1,500,000 kcal/h (116–1,744 kW)
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Pressure Vessels & Heat Exchangers
Deaerators, HP/LP feedwater heaters, air preheaters and autoclaves.
Built to order · ASME U stamp
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Fans & Blowers
Centrifugal and multi-blade fans for boilers, dust collectors, incinerators and HVAC.
MVW-BD / MVW-CDB series
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Other Equipment
Waste incinerators, boiler auxiliaries, chemical, industrial, sugar, food and winemaking equipment.
Incinerators 25–170 kg/h
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Technology
Japanese technology partners
Since 1981, TMM has built its product lines under technical cooperation with Japanese manufacturers.
- 1981Maeda Iron Works: once-through steam boilers
- 1987Kinsei: waste incinerators
- 1994Murakami Mfg.: fans and blowers
- 1995SEO Koatsu Kogyo: pressure vessels and heat exchangers
Certifications
Quality and certifications
TMM holds ASME Certificates of Authorization for power boilers (S) and pressure vessels (U), and can register equipment with the National Board.
Power boilers: manufacture and assembly
Cert. No. 63288, valid to 2029-06-17
Pressure vessels: manufacture
Cert. No. 63289, valid to 2029-06-17
Authorization to register boilers and pressure vessels
Issued 2026-06-17
Main Equipment
Main equipment
A 1,200-ton hydraulic press, heavy-duty boring and milling machines, a plano miller, a vertical turret lathe and a dynamic balancing machine. Forming, machining and balancing are all done in-house.
Projects
Reference projects
Equipment supplied to the steel, pulp, waste treatment and chemical industries.
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