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Large-frame permanent magnet motor for mining duty
Projects & Applications

Selected project experience

MotiraTech supports industrial projects involving direct-drive systems, energy storage, industrial integration, commissioning, and remote field operations. Customer names, site locations, system configurations, operating data and project results are published selectively, and may be withheld where confidentiality, contractual obligations or client authorization requirements apply.

Disclosure policy

Verification and publication permission are separate questions. A project can be fully documented internally while being inappropriate for public disclosure. Client authorization determines what appears on this page.

Experience

Where our project experience sits

The engagement areas in which MotiraTech supports industrial projects. Each states which activities are performed directly and which are coordinated through qualified third parties.

Direct-drive system projects

Industrial drive applications involving permanent magnet direct-drive architecture: application assessment, drivetrain integration, retrofit and new-build coordination, and commissioning support.

Direct — MotiraTech engineering

Energy storage and hybrid power projects

Battery energy storage and hybrid power arrangements configured and integrated for industrial and commercial sites, from assessment through commissioning.

Direct engineering; installation via qualified contractors

Industrial integration and commissioning

Mechanical, electrical and controls integration of drive and energy systems into operating plants, with documented testing and handover.

Direct — MotiraTech engineering

Remote and field operations support

Mobilization, installation supervision, commissioning, startup and technical support at remote and heavy-industrial sites.

Direct supervision; specialized services coordinated
Conveyor system with integrated permanent magnet drive motor
Direct drive conveyor application — illustrative application context, not a disclosed project
Industrial power and control cabinets for mining applications
Industrial power and control equipment — illustrative application context, not a disclosed project
Aerial view of a remote industrial camp with solar arrays and modular power infrastructure
Remote site power infrastructure — illustrative application context, not a disclosed project

On published resultsDetailed operating results for many engagements are subject to client confidentiality. Performance data is available for qualified discussions where disclosure is permitted. The absence of a published figure on this page reflects disclosure authorization, not the absence of project data.
User feedback

Operator field reports — permanent magnet drum motors

Field reports issued by operating plants after permanent magnet direct-drive drum motors were placed in service. The reports were provided to MotiraTech as manufacturer documentation for the drum motor range we engineer and integrate. Site and company identities are withheld; the figures below are reproduced as recorded by the operators, not as MotiraTech performance guarantees.

Metal mining — gold

Crushing section, No. 5 belt conveyor

37 kW air-cooled permanent magnet drum motor, 630 × 1000 mm, 1.6 m/s belt speed, 380 V, 61.58 A rated, 48.3 rpm, IP55, class H insulation

Commissioned June 2023; report issued March 2024


  • Loaded running current held between 25 A and 40 A, with coil temperature below 70 °C.
  • No-load current at rated frequency remained stable at 5–10 A under the dedicated drive.
  • Master/slave drive deviation reported at 2 A and 0.1 Hz.
  • Restart under a heavy material load succeeded without belt stall; no overcurrent or excessive temperature rise recorded.
  • Operator reported the drive footprint reduced by roughly 70 % versus the previous motor, gearbox and coupling arrangement, with gearbox oil leakage eliminated.
Cement and building materials

Mill feed belt conveyor

30 kW water-cooled permanent magnet drum motor, 630 × 800 mm, 2.5 m/s, 380 V, 50.1 A rated, 76.5 rpm, IP55, class F insulation, with matched variable-frequency drive

Commissioned December 2020; report issued March 2021


  • Loaded running current 25–40 A, coil temperature below 70 °C over the reported operating period.
  • Slow-speed restart under accumulated material achieved without stalling the conveyor.
  • Drive footprint reduced by approximately 2 m² relative to the replaced arrangement.
  • A parallel 45 kW unit at the same plant was reported to reach comparable results.
Cement and building materials

Coal mill belt conveyor

18.5 kW air-cooled permanent magnet drum motor, 500 × 800 mm, 2.0 m/s, 380 V, 32.2 A rated, 76.5 rpm, IP55, class F insulation

Commissioned January 2020; report issued March 2021


  • Loaded running current 15–25 A with coil temperature below 70 °C.
  • No-load current 5–10 A at rated frequency; master/slave deviation 2 A and 0.1 Hz.
  • Operator reported approximately 20 % less drive floor space than the conventional arrangement.
Cement and building materials

Conveyor drive replacement trial

110 kW permanent magnet drum motor, 800 × 1000 mm, 2 m/s, 380 V, replacing induction motor, reducer, coupling and driven pulley

Retrofit trial; production technology department report


  • Reducer, fluid coupling, coupling and separate driven pulley removed from the drive train.
  • Operator reported fewer unplanned stoppages and a reduced spare-parts inventory for the drive section.
Coal chemical processing

Fuel supply workshop conveyor (M301C)

55 kW forced air-cooled explosion-protected permanent magnet drum motor, 800 × 800 mm, 2.5 m/s, 380 V, with 75 kW drive cabinet

Purchased March 2022; report issued November 2022


  • Flameproof joint clearances on the terminal box measured 0.1–0.2 mm, within the operator's acceptance standard after service.
  • Phase-to-earth and phase-to-phase insulation measured above 100 MΩ at 2500 V, unchanged from factory values.
  • Cooling air and coil temperatures held below 50 °C in steady operation.
  • Operator reported a measured energy saving above 36 % compared with the previous induction-motor drive.
Iron and steel

Enclosed raw material yard conveyor (A203R)

30 kW intelligent permanent magnet drum motor

Trial from August 2019, assessed after approximately three months


  • Operation reported as normal and stable through the trial period, meeting the acceptance terms of the trial contract.
  • Metered comparison at the site indicated an overall energy saving of 26 %.
Iron and steel

Sinter plant transfer conveyor

18.5 kW low-speed direct-drive permanent magnet drum motor replacing a 4-pole 18.5 kW induction motor, with belt-tracking correction devices

Trial June 2020 to September 2020


  • Test method: three months of metered consumption on the original induction drive, then three months on the permanent magnet drum motor.
  • Objectives recorded by the plant were energy and operating performance, belt mistracking correction, lower maintenance cost and higher availability.
  • Switchgear, motor, reducer, coupling and driven pulley of the original system were removed in the conversion.

How to read these reportsThese are third-party operator reports covering the drum motor technology MotiraTech applies, not projects executed by MotiraTech. Currents, temperatures and energy-saving percentages are site-specific and depend on the conveyor duty, control settings and baseline equipment being replaced. MotiraTech does not extrapolate them to other installations; equivalent results for a given conveyor require an application assessment. Source documents can be reviewed on request.
Disclosure model

Three levels of project disclosure

Every engagement is classified by what the client authorizes for publication. Confidential work is a normal part of industrial project delivery — not an evidence gap.

Public reference

Projects for which MotiraTech holds sufficient authorization to publish the customer or site identity, scope, technical information, photographs, and approved results.

Anonymized project reference

Real project experience described by industry, application, technical challenge, MotiraTech scope and general solution — with customer identity, exact location, commercially sensitive specifications and confidential operating data withheld.

Confidential project experience

Projects and engagements that cannot be published in detail because of NDA, contractual restrictions, customer confidentiality, commercial sensitivity, security considerations, or lack of publication authorization.


What confidentiality does not mean

  • The absence of a public customer name does not mean the absence of project experience.
  • The absence of public photographs does not mean the absence of deployment.
  • The absence of published performance data does not mean no performance data exists.
  • NDA and confidential work are not treated as evidence deficiencies.

How project information is classified

  • Verified and publicly publishable.
  • Verified but published in anonymized form.
  • Verified but confidential.
  • Requiring internal verification before any use — the only category withheld on evidence grounds.
Anonymized references

How a project is described when the customer is confidential

Where genuine project information can be described without breaching confidentiality, references are published in this structure. Entries appear here only when corresponding internal project information exists.

01
Industry
Sector and application area, e.g. mining / bulk material handling
02
Application
The system or process involved, e.g. conveyor drive modernization
03
Project type
The nature of the engagement, e.g. industrial drive integration
04
MotiraTech scope
Only the verified scope of supply and engineering role
05
Challenge
Non-confidential description of the constraint addressed
06
Solution
Non-confidential description of the approach taken
07
Location
Canada / International / region only, where disclosure is permitted
08
Customer
Confidential unless written authorization exists
09
Project data
Confidential where required by the client or contract

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Process

How a project becomes a published reference

Documentation and disclosure authorization are tracked separately; a reference appears here only when the client has authorized the level of detail published.

  1. STEP 01

    Internal project record

    Scope, interfaces, execution conditions and outcomes are documented during the engagement. This record exists independently of whether the project is ever published.

  2. STEP 02

    Disclosure classification

    Each project is classified as publicly publishable, publishable in anonymized form, or confidential — based on the client's authorization and contractual terms, not on the quality of the underlying documentation.

  3. STEP 03

    Client review

    Where any disclosure is proposed, the client reviews how their site, process and results would be described.

  4. STEP 04

    Written authorization

    Customer names, site identification, quantitative results and photography are published only with written consent.

  5. STEP 05

    Selective publication

    Authorized references are published here at the disclosure level the client has approved — public or anonymized.

Projects

Discuss relevant project experience

Tell us what you are evaluating. We will respond with the applicable engineering scope and the project experience relevant to it, within the limits of our confidentiality obligations.