INDUSTRIAL ELECTRIC MOTORS & CENTRIFUGAL VENTILATION SYSTEMS

Dietz-motoren Industrial Electric Motors and Centrifugal Fans

We deliver industrial electric motors, centrifugal fans, and heavy-duty blowers manufactured by Dietz-motoren GmbH & Co. KG. Engineering sizing based on operating parameters, pressure-volume characteristic matching, and comprehensive supply of complete motor sets and genuine spare components.

Dietz-motoren Drive and Ventilation Portfolios

Select the required motor, fan, or blower category. Inquiries may include existing nameplate ratings, electrical supply specifications, and environmental ambient conditions.

Dietz-motoren Three-Phase Asynchronous Motors FDR and FDP

Dietz-motoren three-phase asynchronous motors series FDR, FDP, DR and DP covering power ratings from 0.09 to 200 kW are engineered for continuous drive in machine tools, pumps, compressors and heavy production machinery.

Cast iron and ribbed aluminum frames deliver optimal thermal dissipation and high mechanical rigidity. Class F/H insulation with vacuum UV-impregnation withstands steep voltage surges from modern frequency inverters.

Selection parameters: rated power (kW), rotational speed (RPM), IEC frame size, and mounting arrangement (IM B3, B5, B14).

Dietz-motoren Liquid-Cooled Electric Motors FDW and DW

Dietz-motoren liquid-cooled electric motors series FDW and DW feature an integrated cooling jacket to dissipate heavy thermal loads within extremely compact installation envelopes. Eliminating external fan cooling lowers acoustic noise emissions by 10–15 dB and prevents ambient dust turbulence.

These drives are indispensable in enclosed polymer extruders, plastic injection molding machinery, dynamic test rigs, and marine equipment.

Selection inputs: power rating, cooling liquid operating pressure (bar), volumetric flow rate, and inlet water temperature limits.

Dietz-motoren Glattmantel Hygienic Smooth-Bodied Electric Motors

Dietz-motoren Glattmantel smooth-bodied electric motors without external cooling ribs are tailored for processing environments demanding stringent sanitary compliance and frequent chemical cleaning.

The seamless cylindrical surface eliminates dead pockets, preventing the accumulation of textile fluff, dust, or organic contaminants. Sealed to IP65/IP66 protection standards, the motors withstand high-pressure washdown cycles with detergent solutions.

Selection inputs: output power, shaft seal elastomer (FKM/Viton), IP protection rating, and chemical-resistant coating type.

Dietz-motoren High-Pressure Radial Fans HR and HR-INV Series

Dietz-motoren HR high-pressure centrifugal fans deliver differential pressures up to 15,000 Pa, ensuring reliable airflow through dense filtration banks, drying nozzles, and extended pneumatic ducts.

The HR-INV configuration integrates a pre-parameterized variable frequency drive directly on the motor frame, enabling closed-loop volume flow modulation based on live process sensor telemetry.

Selection inputs: volumetric air flow (m³/h), static and total pressure (Pa), gas temperature, and integrated inverter requirement.

Dietz-motoren Medium-Pressure Centrifugal Fans GR and GT Series

Dietz-motoren medium-pressure centrifugal fans GR and GT balance substantial air throughput with consistent static pressure. They are utilized in industrial drying kilns, spray paint booths, particulate dust collectors, and hot gas recirculation circuits handling temperatures up to +250 °C.

The spiral scroll housing allows 45° indexing increments to streamline pipeline geometry during installation.

Selection inputs: flow capacity (m³/h), head pressure (Pa), outlet orientation angle, and maximum operating gas temperature.

Dietz-motoren Low-Pressure Compact Radial Fans DN Series

Dietz-motoren DN low-pressure compact radial fans move high volumetric air masses with minimal acoustic noise generation. They are engineered for cooling control enclosures, power transformers, inverter cubicles, laser sources, and machine tool spindle housings.

Available with single-phase (230 V) or three-phase (400 V) motors for universal integration into automation systems.

Selection inputs: supply voltage (1~230 V / 3~400 V, 50/60 Hz), mounting flange dimensions, and allowable acoustic limit.

Dietz-motoren High-Performance Industrial Blowers SB Series

Dietz-motoren SB series high-performance blowers (sizes SB 80, SB 100, SB 120) provide reliable oil-free positive pressure and industrial vacuum.

They are utilized in granular pneumatic conveying, automated vacuum gripping lifters, electroplating aeration tanks, and high-velocity air knife bottle and can drying lines. Dry contactless compression guarantees a contamination-free gas flow.

Selection inputs: required pressure differential or vacuum level (mbar), air capacity (m³/min), and intake filter/silencer packages.

Dietz-motoren TRS Series Turbo Blowers and Sonderantriebe Special Drives

Dietz-motoren TRS series high-efficiency radial turbo blowers and Sonderantriebe custom drive solutions are designed around bespoke machine kinematics.

The portfolio includes electric motors with integrated fail-safe electromagnetic holding brakes, tapered or splined shaft extensions, and Stillstandsüberwachung zero-speed monitors to satisfy machinery safety directives.

Selection inputs: output shaft drawing, holding brake torque (Nm), zero-speed pulse count, and special flange dimensions.

Required Sizing Parameters for Motors and Fans

Rated mechanical output power (kW), synchronous rotational speed (RPM), cooling methodology (air or liquid), volumetric airflow (m³/h), total static pressure (Pa), and process gas temperature.

Original Spare Components and Subassemblies

We supply regreasable bearing assemblies, dynamically balanced replacement impellers, heavy-duty terminal boxes, Harting Han industrial connectors, Stillstandsüberwachung speed sensors, and FKM oil seals.

Inverter Duty Operation of FDR Three-Phase Asynchronous Motors

Dietz-motoren three-phase asynchronous motors series FDR and FDP with power ratings up to 200 kW are specifically engineered for variable-speed inverter operation.

Pulse width modulation (PWM) drive switching causes steep voltage wavefronts (du/dt) that induce severe dielectric stress across stator end windings. To prevent insulation degradation, Dietz applies Class F/H insulation materials treated with vacuum-pressure UV impregnation resin.

This robust insulation withstands transient voltage peaks up to 1600 V, eliminating partial discharge phenomena inside stator slots.

Performance Advantages and Integration of FDW Liquid-Cooled Drives

Dietz-motoren FDW liquid-cooled electric motors dissipate internal thermal energy through an integrated stator water jacket. This cooling architecture reduces physical drive volume by 30–40% compared to traditional finned air-cooled enclosures while maintaining identical continuous shaft output.

Eliminating the external cooling fan reduces acoustic noise emissions by 10–15 dB and prevents ambient dust dispersal. FDW series motors are widely used in enclosed polymer extruders, plastic injection machinery, hydraulic power packs, and precision test rigs.

Aerodynamic Sizing and Control of HR High-Pressure Centrifugal Fans

Dietz-motoren HR series centrifugal fans generate total pressures up to 15,000 Pa, designed to overcome substantial aerodynamic flow resistance in dense filter media, industrial cyclones, process drying nozzles, and extended pneumatic ducts.

Spiral housings are manufactured from cast aluminum or heavy-gauge welded steel coated with anti-corrosion epoxy primers. The HR-INV variant integrates an on-motor variable frequency drive, allowing dynamic air volume modulation matched to real-time differential pressure transducer signals.

Hygienic Standards and Design of Glattmantel Smooth-Bodied Motors

In food processing, pharmaceutical production, and textile spinning mills, standard motor cooling ribs rapidly collect lint, airborne dust, and organic residues, creating hygienic and fire risks.

Dietz-motoren Glattmantel drives feature a seamless cylindrical stator shell devoid of cooling fins, crevices, or stagnant pockets.

Certified to IP65 and IP66 ingress protection ratings and fitted with Viton/FKM shaft seals, these units withstand rigorous multi-shift clean-in-place procedures using high-pressure chemical sanitizers.

Application Profile of Medium and Low Pressure Fans GR, GT and DN

The GR and GT medium-pressure radial fan series are optimized for industrial drying kilns, spray booths, and exhaust capture systems handling process air temperatures up to +250 °C. The scroll housing supports 45° angular positioning increments for simplified duct alignment.

Meanwhile, the compact DN low-pressure fan series provides quiet, continuous convective cooling for electrical control cabinets, CNC automation cubicles, fiber laser resonators, and machine tool spindle assemblies.

Oil-Free Compression Technology in SB Series High-Performance Blowers

Dietz-motoren SB 80, SB 100, and SB 120 industrial blowers supply oil-free positive pressure and process vacuum for pneumatic tube systems, robotic vacuum gripping lifters, aeration tanks, and high-velocity conveyor drying knives.

Non-contact dynamic impeller acceleration inside the compression chamber eliminates lubricating fluids within the flow path, ensuring absolute 100% air purity free from hydrocarbon aerosols and oil vapor mist.

Safety Monitoring with Stillstandsüberwachung and Custom Shafts

For seamless integration into automated robotic cells and machining lines requiring strict compliance with machinery safety directives, Dietz-motoren offers redundant Stillstandsüberwachung standstill sensors.

These inductive proximity sensors generate digital pulse trains monitoring shaft rotation, providing hardware interlocks for safety gates.

Through the Sonderantriebe custom program, motors are supplied with conical tapers, DIN 5480 splines, spring-loaded fail-safe brakes, and custom HD cast iron flanges.

Submit Technical Specification for Equipment Sizing

Provide your equipment specification, installation parameters, and corporate purchasing credentials. Our engineering specialists will draft a tailored proposal with full technical validation.