STM-51-12-M-8D

Name: STM-51-12-M-8D
SKU: STM-51-12-M-8D

Model / article: STM-51-12-M-8D

STM-51-12-M-8D is listed by ALVA Industries in Frameless torque motors. Published model data includes Continuous output torque: 0.0975 Nm (continuous); Peak output torque: 0.664 Nm (peak). See the specification table for operating conditions and source evidence.

Exact SlimTorq configurations published in ALVA's public motor selector. Continuous torque retains the manufacturer's Low, Medium and High cooling labels; the selector does not define those cooling conditions physically.

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Product overview

Manufacturer / supplier: ALVA Industries
Series: SlimTorq frameless torque motors
Component type: Frameless torque motors
Source: Open published source

Published pricing

No verified public price indexed for this model. Contact PartMeld for a supplier inquiry.

Published specifications

Values are shown as published. Conditions, rating basis and source evidence apply to each value.

Latest source observation: 2026-09-19. Observation dates record evidence collection, not supplier re-verification.

Specifications and source evidence for STM-51-12-M-8D
Specification	Published value	Conditions and source
Continuous output torqueModel-level statement	0.0975 NmRating: continuous	rule validated Operating conditions cooling level Low rating basis manufacturer public selector thermal conditions manufacturer labels this rating as Low / Medium / High cooling; the physical cooling definition is not stated in the public selector Source evidence STM-51-12-M-8D \| Continuous torque (Low cooling): 0.0975 Nm SlimTorq public selector / STM-51-12-M-8D / Continuous torque (Low cooling) Source observed: 2026-09-19View source
Continuous output torqueModel-level statement	0.223 NmRating: continuous	rule validated Operating conditions cooling level High rating basis manufacturer public selector thermal conditions manufacturer labels this rating as Low / Medium / High cooling; the physical cooling definition is not stated in the public selector Source evidence STM-51-12-M-8D \| Continuous torque (High cooling): 0.223 Nm SlimTorq public selector / STM-51-12-M-8D / Continuous torque (High cooling) Source observed: 2026-09-19View source
Continuous output torqueModel-level statement	0.144 NmRating: continuous	rule validated Operating conditions cooling level Medium rating basis manufacturer public selector thermal conditions manufacturer labels this rating as Low / Medium / High cooling; the physical cooling definition is not stated in the public selector Source evidence STM-51-12-M-8D \| Continuous torque (Medium cooling): 0.144 Nm SlimTorq public selector / STM-51-12-M-8D / Continuous torque (Medium cooling) Source observed: 2026-09-19View source
Line-to-line resistanceModel-level statement	1.02 ohm	rule validated Operating conditions temperature not stated by manufacturer in public selector Source evidence STM-51-12-M-8D \| Resistance: 1.02 ohm SlimTorq public selector / STM-51-12-M-8D / Resistance Source observed: 2026-09-19View source
Product massModel-level statement	46.199999999999996 g	rule validated Operating conditions reference published selector mass Source evidence STM-51-12-M-8D \| Mass: 46.199999999999996 g SlimTorq public selector / STM-51-12-M-8D / Mass Source observed: 2026-09-19View source
Motor constantModel-level statement	0.041 Nm/sqrt(W)	rule validated Operating conditions rating basis manufacturer selector value Source evidence STM-51-12-M-8D \| Motor constant: 0.041 Nm/sqrt(W) SlimTorq public selector / STM-51-12-M-8D / Motor constant Source observed: 2026-09-19View source
Nominal supply voltageModel-level statement	72 V	rule validated Operating conditions rating basis manufacturer selector design voltage Source evidence STM-51-12-M-8D \| Design voltage: 72 V SlimTorq public selector / STM-51-12-M-8D / Design voltage Source observed: 2026-09-19View source
Outer diameterModel-level statement	51 mm	rule validated Operating conditions reference published selector geometry Source evidence STM-51-12-M-8D \| Stator OD: 51 mm SlimTorq public selector / STM-51-12-M-8D / Stator OD Source observed: 2026-09-19View source
Overall lengthModel-level statement	12 mm	rule validated Operating conditions reference published selector geometry Source evidence STM-51-12-M-8D \| Axial length: 12 mm SlimTorq public selector / STM-51-12-M-8D / Axial length Source observed: 2026-09-19View source
Peak output torqueModel-level statement	0.664 NmRating: peak	rule validated Operating conditions duration not stated by manufacturer in public selector thermal conditions not stated by manufacturer in public selector Source evidence STM-51-12-M-8D \| Peak torque: 0.664 Nm SlimTorq public selector / STM-51-12-M-8D / Peak torque Source observed: 2026-09-19View source
Clear through-bore diameterModel-level statement	37 mm	rule validated Operating conditions reference published selector geometry Source evidence STM-51-12-M-8D \| Rotor ID: 37 mm SlimTorq public selector / STM-51-12-M-8D / Rotor ID Source observed: 2026-09-19View source
RMS torque constantModel-level statement	0.0509 Nm/A	rule validated Operating conditions current definition manufacturer selector value Source evidence STM-51-12-M-8D \| Torque constant: 0.0509 Nm/A SlimTorq public selector / STM-51-12-M-8D / Torque constant Source observed: 2026-09-19View source

Technical documents and resources

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