Our production department processes various materials to meet the requests of customers and produces satisfying products that meet our customer's needs and earn their trust.

From order taking and design to production and shipping, our manufacturing processes are seamlessly and totally controlled under a production control system. It oversees fabrication, machining, assembly, performance/functional testing, coating, and shipping processes to ensure that the finished products are of the highest quality.

For the fabrication process, we have introduced state-of-the-art welding equipment as we handle more structures fabricated from welded steel plates made of super two-phase stainless steel and other specialty steels that are expected to become mainstream. Three-axis positioners and welding robots are helping us shorten welding time and produce high quality products.

To enhance our machining capacity, we operate multiple large machine tools, and two-shift operations are occasionally implemented to meet short delivery times.

Precise performance/functional testing of products is performed with computer-assisted automatic performance measuring devices and other pieces of the latest equipment to ensure that only safe and high quality products are shipped.

• Applicable standards
• Pumps: API, ISO, JIS
• Fans & Blowers: API, JIS, ASME/PTC

• Production Drawing

• Production Planning

• Fabrication/Purchase

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    Semi-automatic welding equipment

    Equipment capable of handling continuous welding has been introduced to ensure stable quality.

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    Welding robot

    With highly automated welding work, DMW aims for shorter production time and stabilized quality.

    • Mainly applicable to
    • Pumps: Discharge elbows, foundation bases, etc.
    • Fans & Blowers: Impellers, casings, etc.
  • 

    3-axis positioner

    This machine supports high quality production by enabling optimized welding in any desired position.

    • Mainly applicable to
    • Pumps: Column pipes, tubes, etc.
    • Fans & Blowers: Impellers, etc.

• Machining

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    Turning center with pallet changer

    • Maximum turning diameter: 4,000 mm
    • Maximum turning height: 3,000 mm
    • Ram stroke: 1,500 mm
    • With rotary shaft
    • With automatic pallet changer
    • Function: Turning and drilling
    • Mainly applicable to
    • Pumps: Impellers, foundation bases, etc.
    • Fans & Blowers: Impellers, split casings, etc.
  • 

    Table type horizontal boring machine with pallet changer

    • Spindle diameter: 130 mm
    • Table lengthwise: 3,000 mm
    • Table widthwise: 1,600 mm
    • Main spindle vertical travel: 2,250 mm
    • With automatic pallet changer
    • Function: Machining in overall processes
    • Mainly applicable to
    • Pumps: Discharge elbows, etc.
  • 

    Gantry machining center with pallet changer (5-plane machining)

    • Gate width: 2,050 mm
    • Gate height: 1,650 mm
    • X-axis travel: 3,200 mm
    • Y-axis travel: 3,000 mm
    • Z-axis travel: 700 mm
    • W-axis travel: 800 mm
    • With automatic pallet changer
    • Function: Mating surface machining and boring
    • Mainly applicable to
    • Pumps: Discharge elbows, etc.
    • Fans & Blowers: Split casings

• Assembly

• Performance/functional testing

  • 

    Performance measurement

    With cutting-edge equipment, we can perform tests conforming to the following Japanese and international standards.

    • Mainly applicable standards
    • Pumps: API, ISO, JIS
    • Fans & Blowers: API, JIS, ASME/PTC
  • 

    Testing pumps

    With a channel for test runs, we can verify actual pump performance.
    Our performance test facilities support flow rates of up to 80,000 m³/h.

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    Power receiving equipment

    Our power receiving capacity is 7,500 kVA. Operation of electric motors of about 3,700 kW maximum is possible.
    This facility is equipped with a frequency converting system and capable of performing tests at frequencies of either 50 Hz or 60 Hz.