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Metallic circular mechanical component with multiple evenly spaced holes around the inner and outer rings, and a protruding section with a connector or cable on the right side, shown on a plain white background.

DMT Series

DMT Ultra-Thin Direct Drive Motor

Type
Ultra-thin direct drive, very large hollow shaft
Frames
3 (hollow shaft Ø140 - Ø340 mm)
Continuous Torque
9.1 - 31 N·m
Peak Torque (1 s)
30.4 - 110 N·m

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The DMT is the ultra-thin member of the DM family and one of the lowest-profile direct drive motors on the market: 22 to 30 mm tall, with a larger hollow shaft (Ø140 to Ø340 mm) that passes cables, air tubes and 4 to 12 inch wafers straight through the axis. High thrust force density and a high-rigidity design couple the load directly, with no reduction mechanism and zero backlash. Three models span 9.1 to 31 N·m continuous and 30.4 to 110 N·m peak, holding repeatability down to ±1.5 arc-seconds.

Need the full torque span instead of the lowest profile? DMY, the outer-rotating series, covers it. View DMY Series →

  • 22 - 30 mm

    Profile height across the family

  • Ø340 mm

    Largest hollow shaft (DMTK3, 4 - 12 inch wafers)

  • ±1.5 arc-sec

    Repeatability, DMTF2 and DMTK3

Applications

  • Semiconductor wafer handling (4 - 12 inch)
  • Product inspection and processing
  • Precision large-hollow XY-theta positioning platforms
  • Double-sided processing and backlight modules

Models

Hollow shafts run Ø140 (DMTB2), Ø240 (DMTF2) and Ø340 mm (DMTK3) at 22, 22 and 30 mm height. DMTB2 and DMTF2 are cataloged; DMTK3 is the brochure's new debut, sized for 12-inch wafers. Accuracy ships at ±20 arc-sec (DMTB2) or ±15 (larger frames), tightening to ±10 or ±5 with error mapping.

Model Frame Ø (mm) Continuous torque (N·m) Peak torque 1 s (N·m) Max speed (rpm) Configure
DMTB2 290 9.1 30.4 350 Configure ↗
DMTF2 390 19 63.6 220 Configure ↗
DMTK3 520 31 110 100 Configure ↗

Part numbers & options

How a part number reads

DMT B2 - 0 0 S P 0 0 - S 0 - 3 G S - 0 - 0 (spaces between decoded positions)

DMT
Series — ultra-thin direct drive
B2
Model — B2 Ø140 · F2 Ø240 · K3 Ø340 mm hollow
0
Encoder — 0 900 lines · 1 1216 lines (INC)
0
Hall sensor — 0 without
S
Winding — S standard
P
Temperature sensor — N without · P PTC
0
Protection — 0 IP40
0
Function code
S
Axial/radial runout — S 30/30 µm standard · P 5/30 µm
0
Accuracy compensation — 0 without · 1 ±10 · 2 ±5 arc-sec
3
Wire length — 3 3 m (DMT series standard)
G
Connector — G D-SUB 15P encoder + free-wire motor cable
S
Positioning pinhole — S standard (per drawing)
0
Clamp — 0 without (standard)
0
Reserved code

The configurator assembles this number for you, with drawings and 3D CAD. Configure ↗

Encoder

Incremental encoders; interpolated resolution reaches 3.69 to 4.32 million counts per revolution.

  • 0 900 lines — DMTB2 standard
  • 1 1216 lines — DMTF2 standard

Accuracy compensation

Factory error mapping tightens angular accuracy.

  • 0 Without compensation — ±20 arc-sec (DMTB2) or ±15 (DMTF2, DMTK3)
  • 1 ±10 arc-sec — After error mapping
  • 2 ±5 arc-sec — Tightest compensation

Runout

  • S 30/30 µm — Axial/radial, standard
  • P 5/30 µm — Precision axial runout

Sensors & electrical

  • P PTC temperature sensor — SNM100 in-winding; N omits it
  • 600 600 VDC bus — Optional over the 500 VDC standard

Downloads

Other Direct Drive Motors

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How buying works

Spec it in the configurator: drawings, 3D CAD, and a quote to follow.

HIWIN series are configured to your application, not bought off the shelf. Start from your loads and speeds if you are still choosing a size.

Configure Open the Sizing Tool

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