UM-40A-CNC -

Specification

UM-40A-CNC Full Servo Thread Rolling Machine

The UM-40A-CNC combines the tough build of our classic UM-40 with a smart full-servo upgrade. By replacing the hydraulic unit with digital servo control, it eliminates precision errors caused by hot oil or internal leaks. It’s the perfect solution for large pitches, deep threads, and high-strength materials.

Key Benefits

  • Full Servo Control: No more oil temperature drift. Perfect precision even during long production runs.

  • Linear Guides & Ball Screws: High-rigidity design that delivers smooth, powerful thrust without any shaking.

  • Easy Touchscreen (HMI): Save and load multiple job settings to speed up your changeovers.

  • Multi-Stage In-feed: Smart pressure distribution that protects your dies and delivers a mirror-like finish.

  • Smart Die Protection: Automatic slow-down during retraction to extend the lifespan of expensive dies.

  • Maximum Versatility: Supports both In-feed (short parts) and Thru-feed (long bars) on a rock-solid FC-25 cast iron body.

Applications

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    Transmission: Ball screws, Worm gears, Trapezoidal screws.
  •  

    Automotive: Drive shafts, Shock absorber piston rods.
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    Fasteners: Grade 8.8 / 10.9 heavy bolts, Stainless steel threaded rods.
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    Fittings & Custom: High-pressure hydraulic joints, Custom large threads.

work piece diameter (mm)

⌀6 ~ ⌀40

Axial pitch for ISO threads

1.0P - 10.0P (M0.5 - M3.0)

length mm

In feed: 148mm

length mm

thru feed: no limited

spindle speed

1 ~ 80 r.p.m
<servo motor>

thread rollingd die

Diameter

⌀180

Bore

⌀54

length

35,70,100,150 ㎜

Keyway

10×5

Distance of thread rolling spindles

154 - 220㎜

output

1 ~ 12

swivelling angle

± 4°

servo motor

5.5kW * 2 units

feeding servo motor

5.5 kW * 1 unit

feeding power

20 ton (driven by ball screw)

net weight

2500 kg

required spacce

1500㎜ × 1500㎜