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A rectangular metallic linear actuator with a white top, black front, and visible holes, mounted on a gray base, featuring an orange connector on one end.

LMFA Series

LMFA Series Water-Cooled Iron-Core Linear Motor

Type
Iron-core forcer + magnet stator, water cooled
Models
25 (each also as L low back-EMF winding)
Continuous Force (WC)
149 - 7,917 N
Peak Force (1 s)
282 - 20,827 N

Start customizing your product with our configurator

HIWIN synchronous linear motors LMFA are coiled stack of sheets with water-cooling loop. They are especially distinguished by very high power density and minimum cogging force. This three-phase motor is composed of a primary part (forcer) with iron core and secondary part (stator) with permanent magnets. With the combination of several stators, many stroke combinations are possible.

Without the water-cooling loop, the LMSA series covers the same iron-core construction for standard duty cycles. View LMSA Series →

  • 20,827 N

    Peak force of the largest model (LMFA64)

  • 2×

    Continuous force with the water circuit vs. natural cooling

  • 48.5-66.1 mm

    Total installation height across the four frame heights

Applications

  • Machine tools
  • Laser processing machines
  • Glass cutting machines
  • Active vibration suppression platforms

Models

Model digits encode forcer width (0-6) and length (1-4): an LMFA31 is a 141 mm wide, 214 mm long forcer. Continuous force figures are the water-cooled (WC) rating at the catalog's minimum flow rate; without cooling water the catalog's Fc column is about half. Every model also ships as an L low back-EMF winding with the same force ratings at higher speed.

Model Continuous force WC (N) Peak force 1 s (N) Attraction force (N) Height (mm) Configure
LMFA01 149 282 457 48.5 Configure ↗
LMFA02 297 564 914 48.5 Configure ↗
LMFA03 446 845 1372 48.5 Configure ↗
LMFA11 272 516 837 48.5 Configure ↗
LMFA12 544 1032 1674 48.5 Configure ↗
LMFA13 816 1548 2511 48.5 Configure ↗
LMFA14 1089 2063 3348 48.5 Configure ↗
LMFA21 409 776 1259 50.5 Configure ↗
LMFA22 819 1552 2518 50.5 Configure ↗
LMFA23 1228 2328 3777 50.5 Configure ↗
LMFA24 1638 3104 5036 50.5 Configure ↗
LMFA31 759 1750 3430 64.1 Configure ↗
LMFA32 1519 3500 6860 64.1 Configure ↗
LMFA33 2278 5250 10290 64.1 Configure ↗
LMFA34 3037 7000 13720 64.1 Configure ↗
LMFA41 990 2603 5145 66.1 Configure ↗
LMFA42 1979 5207 10290 66.1 Configure ↗
LMFA43 2969 7810 15435 66.1 Configure ↗
LMFA44 3958 10413 20580 66.1 Configure ↗
LMFA52 2844 6925 13700 64.1 Configure ↗
LMFA53 4266 10388 20550 64.1 Configure ↗
LMFA54 5688 13850 27400 64.1 Configure ↗
LMFA62 3958 10413 20580 66.1 Configure ↗
LMFA63 5938 15620 30870 66.1 Configure ↗
LMFA64 7917 20827 41160 66.1 Configure ↗

Part numbers & options

How a part number reads

LM FA 3 1 L B (forcer order code; matching magnet tracks order as LMF stators)

LM
Linear motor
FA
Motor type — FA iron-core with water cooling
3
Forcer width — 0 67 · 1 96 · 2 126 · 3 141 · 4 188 · 5 248 · 6 342 mm
1
Forcer length — LMFA 0-2: 1 145 · 2 250 · 3 355 · 4 460 mm; LMFA 3-6: 1 214 · 2 375 · 3 536 · 4 697 mm
L
Winding — blank standard · L low back-EMF (higher speed)
B
Finish — blank anodized black · B non-anodized

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

Windings

Same forcer, two winding tunes; force ratings are identical.

  • — Standard — Force-constant optimized
  • L Low back-EMF — Higher speed at the same bus voltage

Cooling

Water cooling is built in; a bolt-on precision stage is optional.

  • WC Built-in water circuit — 3.3-7.8 L/min at 20 °C doubles the continuous force
  • LMFC Precision cooling system — Dual reflux jacket holds the motor surface temperature

Stators (LMF)

Magnet tracks chain end to end to build the stroke.

  • S / C Standard or customized — Widths 58-334 mm matched to the forcer
  • 1-3 Segment lengths — 120 / 180 / 300 mm (LMF0-2), 184 / 276 / 460 mm (LMF3-5), 184 mm (LMF6)
  • EP Magnet package — EP epoxy, or blank for cover plate

Protection

  • PTC 1× Pt1000 + 3× PTC SNM120 in series — In-winding protection to the 120 °C limit

Other Linear Motor Components

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    LMSA Series

    Iron-core linear motors with high power density and minimal cogging: peak force 4,458 N

    Linear Motor Components

  • A 3D rendering of a linear actuator with a black base and a white rectangular sliding carriage, shown extended on a rail, used for precise linear motion in automation systems.

    LMC Series

    Coreless linear motors with epoxy-cast coils: no cogging, low inertia, high acceleration

    Linear Motor Components

  • Three linear displacement transducers with metal rods and rectangular white housings, each attached to a grey cable, are shown on a plain white background.

    LMT Series

    Tubular linear motors designed as ballscrew substitutes: peak force up to 1,196 N, no cogging

    Linear Motor Components

A person views a computer monitor displaying a 3D technical drawing with dimensions and specifications for a rectangular component. The interface features green and white colors, and there is a window in the background.

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.

Rather talk it through? Request a quote from an application engineer.