DRIVE TECHNOLOGY • OBSOLESCENCE MANAGEMENT • TESTED REPLACEMENT UNITS

Variable Frequency Drive Procurement for Industrial Plants & Legacy Machinery

When a variable frequency drive fails and is no longer available from the original manufacturer, expensive machine downtime looms. Especially for older plants, variable frequency drive procurement proves challenging because many drive series and spare parts are already discontinued (EOL).

retrofit GmbH is your specialized partner for professional VFD procurement, spare parts sourcing, and tested replacement units. We assist production managers, maintenance leads, and technical buyers in sourcing discontinued drive technology worldwide. Our goal is to minimize downtime, preserve existing machinery concepts, and avoid costly cabinet modifications. If your drive is still intact and can be overhauled, we alternatively offer our professional variable frequency drive repair.

+49 7032 9541231

Cost-effective & sustainable

Procuring Variable Frequency Drives When Standard Channels Fail

In manufacturing facilities, variable frequency drives regulate speeds for motors, pumps, fans, and conveyor systems. When a VFD requires short-term replacement, original equipment manufacturers (OEMs) often fail due to delivery shortages or discontinued product lines. This is precisely where retrofit GmbH steps in: We locate technically compatible units when standard supply chains are blocked.

Typical Maintenance Challenges:

The variable frequency drive is discontinued (End of Life) by the OEM.
New drive generations do not fit mechanically or electrically inside the control cabinet.
Interfaces or fieldbus systems are incompatible with existing legacy PLCs.
Long lead times for new units endanger your production schedules.

Your Benefits in VFD Sourcing:

Global Supplier Networks: Worldwide access to hard-to-find drive technology and warehouse stock.
100 % Exact Fit: Identical replacement drives eliminate expensive mechanical re-engineering.
New Old Stock (NOS) & Warehouse Stock: Access to unused original units from verified surplus inventories.
Tested Quality: Every component is evaluated for completeness and functionality before delivery.

Used VFDs & Obsolescence Management

Buy Used Variable Frequency Drives Safely and Minimize Risks

Companies looking to buy used variable frequency drives to keep legacy machinery operational frequently face quality issues. Untested components from unverified online sources carry high risks: Aging electrolytic capacitors or undetected internal damage can cause short circuits upon power-up. To prevent consequential damage to your machinery, we combine tested replacement units with industrial motor procurement or professional industrial motor repair whenever required.

VFD Obsolescence Management

We source discontinued drive technology, unused New Old Stock (NOS) units, and original surplus inventories.

Strict Quality Assurance

Every assembly is evaluated according to type code, serial number, power rating, and electrical condition.

Tested Reliability

Instead of untested risky components, you receive fully operational replacement drives with verified functionality.

Which drive components we procure

Comprehensive Sourcing for Industrial Drive Technology

When a drive model is discontinued by the manufacturer, your machine does not need to be scrapped. We support you worldwide in sourcing matching inverters and modules. Availability is precisely verified based on type code, rated power, mechanical frame size, and serial number.

Industrial Variable Frequency Drives

Complete VFDs for machinery, pumps, fans, and conveyor drives across all power ratings.

Identical Replacement Units

Exact-fit exchange drives that install directly without re-wiring or cabinet changes.

VFD Spare Parts

Individual components such as power sections (IGBT modules), cooling fans, control cards, and operator keypads (HMIs).

Special & EOL Equipment

Hard-to-find inverters, rare drive components, and discontinued custom assemblies.

Do you require other discontinued electronic assemblies in addition to drives? Take advantage of our comprehensive industrial electronics procurement service.

WHAT OUR CUSTOMERS SAY

What our satisfied customers say

Our customers value not only the reliability and quality of our work, but also our personalized service.

When a variable frequency drive fails, every hour counts. The fast repair of variable frequency drives by retrofit GmbH helps us secure production targets and reduce unplanned downtime.

Thomas Weber

Head of Maintenance & Service

The combination of precise variable frequency drive fault diagnosis, technical refurbishment, and reliable data migration provides a solid foundation for our machine fleet.

Sabine Krämer

Maintenance Manager

We needed a quick decision between repair, replacement, and sourcing a substitute. The solution-oriented assessment with a focus on cost-effectiveness convinced us completely.

Markus Lange

Production Manager

MANUFACTURER-INDEPENDENT SERVICE

Multi-Brand VFD Procurement for Leading Inverter Manufacturers

Industrial operations utilize a wide variety of drive series. retrofit GmbH procures variable frequency drives, soft starters, and servo drives regardless of brand or manufacturing year. We source assemblies and spare parts for leading VFD manufacturers.

RETROFIT ADVANTAGES

Comprehensive Electronics Services for Your Existing Machinery

Learn more about our specialized industrial electronics services for your existing systems:

Variable Frequency Drive Repair Economical overhaul and full-load testing for defective drive inverters.
Industrial Electronics Procurement Worldwide sourcing for discontinued assemblies, PLC modules, and control cards.
PCB & Control Board Repair Micro-soldering and component-level repair for electronic boards.
HMI Panel Repair Overhaul and touchscreen replacement for industrial operator panels.
LIndustrial PC Repair Hardware replacement and data recovery for industrial computers.
Preventive Maintenance Regular inspections to avoid unplanned equipment breakdowns.

Important Info at a Glance

Frequently Asked Questions (FAQ) About VFD Procurement

Can discontinued variable frequency drives still be procured?

Yes, in most cases sourcing discontinued VFDs is possible. Through our global network, we procure unused New Old Stock (NOS) units, verified surplus stock, or identical replacement drives.

Are discontinued variable frequency drives available as new parts?

Yes, we frequently access unused, factory-sealed surplus inventory (New Old Stock / NOS) from warehouse liquidations that are no longer listed in OEM catalogs.

Why are untested used variable frequency drives risky?

Untested used drives frequently feature aged capacitors or undetected internal damage. Upon power-up, these can cause short circuits and damage surrounding control cabinet components. Every unit at retrofit GmbH is evaluated and lab-tested before delivery. If your control system has been affected by a short circuit, we assist you directly with PLC controls repair or PLC control systems procurement.

What information is needed for a procurement inquiry?

Most important are the exact type code from the nameplate, manufacturer, power rating (kW/HP/A), and ideally a photo of the unit’s nameplate.

What happens if an identical variable frequency drive is unavailable?

If an identical replacement unit cannot be located, we offer variable frequency drive repair for your defective unit or identify compatible successor solutions.

Do you require other discontinued electronic assemblies in addition to drives? Take advantage of our comprehensive industrial electronics procurement service.

Are you looking for a discontinued variable frequency drive, a hard-to-find replacement unit, or matching spare parts for your drive technology? Avoid lengthy downtime and have your components sourced globally and safely by the experts at retrofit GmbH!

+49 7032 9541231