We source frameless torque motors, DDR and gimbal motors, industrial PMDD systems, generators, OEM components, and related products through independent suppliers. Send an application, model number, or drawing; we coordinate suitable options and a project-specific quotation.
Frameless Torque, Cross-Ref & DDR/Gimbal
Frameless motors, rotary motion, and sourced alternatives
Cooling Tower & Heavy Industrial Low-Speed PMDD
Source motor and drive options for industrial retrofit requirements
Send a product name, model number, drawing, or application brief. We source across motors, generators, drives, and OEM components, then coordinate suitable suppliers and a project-specific offer.
Email the Sourcing Desk (RFQ & Drawings)
inquiry@pmddmotor.com
Send your operating parameters, interface drawings, or nameplate photos to confirm product fit, documentation scope, and quotation terms per project.
WhatsApp the Sourcing Desk
Share nameplate photos, reference part numbers (Kollmorgen / TQ / Celera), or OD/ID limits so we can coordinate a supplier quotation.
Direct-drive architecture
The load connects without a reduction gearbox. Whether that arrangement fits depends on the application.
Frameless Torque Kits
Hollow-Bore Rotary
Industrial Gearless PMDD
Independently comparing against buyer-provided references, including examples from Kollmorgen TBM2G / KBM, TQ-RoboDrive, or Celera Omni+? Share the model and interface requirements for a project-specific review. No affiliation or interchangeability is implied; fit and performance require supplier evidence.
Compare stator construction, bore, mounting envelope, thermal path, and duty cycle against the application requirements.
Agree which electrical, thermal, and load records are needed before a supplier or test method is selected.
Align motor pole-pairs, Ke/Kt, thermistor type, and encoder protocols (BiSS-C, Tamagawa, EnDat) with your servo drive or closed-loop VFD, plus project-confirmed CE/UL/RoHS documentation.
Product line overview
Source precision-motion motors, industrial PMDD systems, OEM components, generators, and related products. These categories show our main focus areas; requests for other motor and drive products are welcome too.
Voltage and ratings confirmed per order · Supplier options sourced to project requirements
Sourcing for frameless motors and rotary motion applications. Share your application and interface needs; model fit, ratings, supplier, and documents are confirmed for the selected offer.
Voltage and ratings confirmed per order · Supplier options sourced to project requirements
Sourcing for cooling towers and industrial equipment. Suitability, ratings, efficiency evidence, availability, and supply scope are confirmed against project data and supplier documents.
Electrical scope confirmed per order · Motor, generator, and component scopes kept separate
Sourcing for stator, rotor, and lamination components, with generator products available for separate prime-mover projects. Supplier scope is confirmed for each order.
Product and application topics
These illustrations introduce our main sourcing categories. We also accept requests for related products; selected model, fit, ratings, and documents are confirmed in the quotation.
We source frameless stator and rotor options for robotics, rotary tables, and other compact motion systems. Share your OD/ID envelope, torque, speed, voltage, and drive preference so we can coordinate suitable candidates and a project-specific quotation.
Send a buyer-provided reference model or interface drawing and we can source candidate alternatives for review. Brand names identify reference products only; fit, winding, drive compatibility, and interchangeability require model-specific evidence and validation.
We source rotary direct-drive and gimbal motor options for precision motion applications. Share the bore, torque, speed, feedback, mounting, and controls you need; the selected model and available documents are confirmed with the supplier.
We source permanent-magnet motor and drive options for cooling tower and HVAC projects, including retrofit inquiries. Share fan data, operating speed, mounting, environment, and supply so the supplier can confirm a suitable configuration and quotation.
We source low-speed permanent-magnet motor options for equipment such as mixers, conveyors, mills, and extruders. Send the driven-machine data, load profile, mounting, cooling, and controls to coordinate a supplier review and offer.
Source permanent-magnet direct-drive motor options across precision motion and industrial applications. We also handle related motor, drive, component, and generator requests; exact model and supply terms are confirmed per order.
We can source motor-only or motor-and-drive packages for project requirements. Share the motor, VFD or servo drive, feedback, controls, and installation scope so component responsibility and compatibility can be confirmed in the quotation.
We source drawing-based rotor, stator, winding, and lamination components for OEM projects. Send drawings, materials, tolerances, inspection criteria, and quantities for supplier capability review and quotation.
We source permanent-magnet generators for wind, hydro, and other prime movers. Share the speed range, output, load, protection, and mechanical interface; generator models and available evidence are confirmed separately from motor requests.
Check the motor against the machine, not a headline rating
A suitable direct-drive option depends on the installation envelope, actual load profile, heat path, and control system. These checks help identify fit and open questions before specifications and quotation are finalized.
Compare stator outer diameter, rotor bore, axial length, shaft or flange interface, and cable routing with the space available in the assembly.
Share continuous and peak torque, speed range, operating cycle, and supply so a supplier can assess the requirements for your machine.
Define ambient temperature, mounting heat sink, cooling method, sensors, and protection requirements; continuous performance depends on the installed thermal boundary.
Identify the servo drive or VFD, encoder or resolver, and control requirements early so electrical and mechanical interfaces can be reviewed together.
Application paths
We source motor and drive options for the machines below. Share the load, operating point, mounting space, controls, and service conditions so we can coordinate a suitable supplier offer.
Division 2 · Gearbox Elimination & Energy Retrofit Assessment
We help source PM motor and drive options for retrofit projects. Share the existing drivetrain, load, output speed, mounting, environment, and controls so a supplier can review fit and provide a project quotation.
Division 1 · Robotics & Embodied AI Actuation
We source motor and actuator options for robotic joints based on load, motion profile, mechanical envelope, thermal path, feedback, and drive constraints. Candidate models and technical evidence are confirmed with the selected supplier.
Division 1 · Low-Cogging & Precision Rotary Motion
We source direct-drive rotary and gimbal motor options for precision applications. Describe the axis, bore, mounting, motion profile, environment, feedback, and control system to begin supplier coordination.
Division 2 · Cooling Tower & Air-Cooled Condenser Direct Drive
We source permanent-magnet motor and drive options for cooling tower and HVAC applications, including retrofit projects. Share fan load, operating conditions, mounting, airflow, controls, and service environment for supplier review.
Division 2 · Heavy-Duty Process & Bulk Handling LHPMDM
We source drive options for process mixers and conveyor equipment. Send the machine load, speed range, duty, mounting, process environment, controls, quantity, and destination so we can coordinate a suitable offer.
Division 2 · High-Thrust Extruder, Mill & Continuous Process Drives
We source motors, PMDD systems, and related drive components for industrial equipment. Share the operating point, load cycle, shaft and mounting interfaces, thermal limits, and controls for a project-specific supplier quotation.
Separate Generator Line · Wind, Hydro & Turbine PMG Evaluation
We source generator options for wind, hydro, and other prime movers. Share speed range, electrical output, load, mechanical interface, and protection requirements so the supplier can confirm the proposed configuration.
Customization & quality planning
We coordinate supplier review of the mechanical envelope, winding, thermal boundary, feedback, and drive interface where those details matter. The confirmed supply scope is recorded in the quotation.
Mechanical fit
Stator OD, rotor bore, stack length, shaft or flange interface, cable routing, and available installation space.
Electromagnetic fit
Bus or line voltage, continuous and peak torque, speed, duty cycle, and target winding constants.
Machine conditions
Ambient and heatsink conditions, cooling method, sensors, insulation, and required ingress or operating environment.
System integration
Servo drive or VFD model, encoder or resolver, thermistor type, wiring, and commissioning requirements.
Quality control & verification
Set the inspection points, test limits, responsible supplier or facility, and report format for each project. Depending on the agreed scope, checks may cover dimensions, winding resistance and inductance, insulation, surge, back-EMF, or dynamometer performance. Test availability and records are confirmed in the project documents.
A clear path from first inquiry to batch order
The project moves from fit review to specification, sample validation when required, and pilot or batch release. The quotation confirms the deliverables, acceptance criteria, and schedule for that project.
Review: Application, load, target operating point, available envelope, and expected quantities.
Agree: Open questions and the project scope that needs supplier confirmation.
Review: Agreed motor interface, winding targets, drive requirements, and acceptance plan.
Agree: Confirmed drawing, quotation scope, and sample schedule before the build.
Review: Prototype quantity and project-specific inspection or test requirements.
Agree: Sample evaluation against the agreed acceptance criteria; changes are resolved before release.
Review: Approved sample, forecast volume, destination, and required order documents.
Agree: Pilot or batch plan, quality records, and delivery window confirmed for the order.
Lead time is not a blanket promise. Sample and batch schedules are quoted separately after the specifications, material and tooling needs, inspection scope, and supplier capacity are confirmed.
Request sourcing and supply
A preliminary review can start with partial information. Add drawings, a nameplate photo, or an incumbent model number if available; open questions can be resolved with the supplier before quotation.
Next step
Share your target parameters with our sourcing desk. We coordinate product options, supplier questions, and a written offer. Sample timing and batch delivery are confirmed after specifications, materials or tooling, test scope, and supplier capacity are reviewed.
Send a product name, model number, drawing, or application brief. We source across motors, generators, drives, and OEM components, then coordinate suitable suppliers and a project-specific offer.
Email the Sourcing Desk (RFQ & Drawings)
inquiry@pmddmotor.com
Send your operating parameters, interface drawings, or nameplate photos to confirm product fit, documentation scope, and quotation terms per project.
WhatsApp the Sourcing Desk
Share nameplate photos, reference part numbers (Kollmorgen / TQ / Celera), or OD/ID limits so we can coordinate a supplier quotation.
Electromagnetic sizing formulas, segmented vs. solid stator trade-offs, heatsink thermal derating models, and gearless retrofit feasibility evaluations.
Compare PMDD stator insulation and dV/dt filter sizing: cable reflection, PDIV evidence, and drive limits. Prepare an RFQ for a supplier compatibility review.
Size PMDD motor cooling with a worked flow example. Compare water jackets and forced air, check NdFeB thermal limits, and prepare your cooling RFQ for review.
Plan frameless torque motor integration with housing-fit calculations, end-turn clearance checks, winding trade-offs, and RFQ checklist. Request a CAD review.
Direct-Drive Project FAQ
PMDD means permanent-magnet direct drive: a permanent-magnet motor architecture that drives a load without an intermediate reduction gearbox. Not every permanent-magnet motor is a direct-drive motor, and not every application suits a gearless arrangement.
No. Review the load, speed range, duty cycle, mounting, thermal path, controls, environment, and the driven machine's requirements before considering a direct-drive arrangement.
Share the application, load and speed profile, duty cycle, mechanical envelope or mounting drawing, thermal and environmental limits, supply, controls, expected quantity, and destination. Mark estimates as provisional.
Yes. The listed categories show our main focus areas; related motor, generator, drive, and OEM component sourcing requests are welcome. The selected supplier, exact model, ratings, compatibility, documents, price, and delivery terms are confirmed in the written quotation.
No. Share the exact motor or drive model, feedback device, interface drawing, and operating requirements. Compatibility or interchangeability is not implied and requires supplier evidence and project validation.
PMDD Motor is operated by PMDD Motor We coordinate supply through independent manufacturers and suppliers. The selected supplier and manufacturing site are identified for each order and are not represented as self-owned.
Send a product name, model number, drawing, or application brief through the form, email, or WhatsApp. We coordinate supplier options and confirm the written offer for your project.
Send a product name, model number, drawing, or application brief. We source across motors, generators, drives, and OEM components, then coordinate suitable suppliers and a project-specific offer.
Email the Sourcing Desk (RFQ & Drawings)
inquiry@pmddmotor.com
Send your operating parameters, interface drawings, or nameplate photos to confirm product fit, documentation scope, and quotation terms per project.
WhatsApp the Sourcing Desk
Share nameplate photos, reference part numbers (Kollmorgen / TQ / Celera), or OD/ID limits so we can coordinate a supplier quotation.
