Varvel worm gearbox - F RS 50 - Output shaft Ø25mm

Varvel FRS50 Ø25mm: high-performance worm gear reducer for industry and agriculture

Designed to meet the demands of intensive production environments, the Varvel FRS50 worm gear reducer combines mechanical robustness, compactness, and high adaptability. Equally suited for the industrial and agricultural sectors, it ensures reliable and durable transmission in the long term, while simplifying maintenance operations as much as possible.

Manufactured in Italy, in the Emilia-Romagna region, the FRS50 successfully equips conveyors, mixers, transport systems, agricultural machinery, automated lines, and labeling machines, as well as any equipment operating continuously.

At Dymatec Industries, each FRS50 reducer is rigorously checked and configured to ensure optimal integration into your current production lines.

The FRS50 worm gear reducer: a solution adapted to numerous industrial applications

Thanks to its mechanical versatility and its ability to deliver high torque at low speed, the FRS50 worm gear reducer finds its place in a very wide range of applications. It is notably found in:

• Conveyors and belts: transport of parts, packages or bulk materials on production lines
• Mixers and agitators: homogenization of food, chemical or pharmaceutical products
• Screw conveyors and dosing systems: precise feeding of raw materials in the food and plastics industries
• Agricultural machinery: spreaders, seeders, irrigation systems and harvesting equipment
• Gates and lifting systems: automation of barriers, industrial valves and hatches
• Pumps and compressors: low-speed drive for viscous or laden fluids
• Packaging and labeling lines: precise synchronization of production rates
• Handling equipment: carts, lifting tables and transfer systems

Its compact design and low noise level — characteristic of worm gear transmissions — make it a particularly popular solution in environments where space, noise, and reliability are determining factors.

The G version coupling protects the motor shaft and reduces your maintenance costs

The FRS50 integrates a G version motor-reducer coupling guaranteeing direct, precise, and energy-loss-free torque transfer. This system prevents seizure of the motor shaft during prolonged shutdowns, reduces corrective interventions, and allows you to control your maintenance costs over time.

Choose from 12 reduction ratios to optimize your output speed and torque

The FRS50 offers 12 reduction ratios: 5, 7, 10, 15, 20, 28, 40, 49, 56, 70, 80, and 100, allowing fine adjustment of the output speed and transmitted torque according to the needs of each application. The calculation is simple: motor speed ÷ reduction ratio = output speed.

Four mounting options available for rapid integration on all your equipment

The FRS50 adapts to all installation constraints thanks to its multiple mounting configurations:

• Mounting on casing (PC, PA or PB version)
• FL or FA output flange with standardized bolt circles
• Mounting on mounting feet
• Torque arm with silent block to absorb vibrations and dynamic forces

A Ø25 mm hollow shaft delivered as standard, customizable according to your output needs

The FRS50 is equipped as standard with a Ø25 mm hollow shaft for direct and compact connection to your machine. Two alternative configurations are available for specific needs:

• Single solid output shaft (AS)
• Double solid output shaft (AD)

The FRS50 is natively compatible with IEC 63, 71, and 80 standardized motors

The reducer accepts motor input flanges conforming to the following IEC standards:

These combinations guarantee precise mechanical coupling and maximum transmission efficiency.

Configure your FRS50 with the many technical options available

The FRS50 can be customized according to the specific requirements of each application:

• AD: double output shaft
• AS: single output shaft
• ASC: protective cover for hollow shaft
• TLI: internal torque limiter
• TLE: adjustable external torque limiter
• GRM: low backlash version for precision applications
• VB: worm shaft extension on opposite side to the shaft
• VIT: Viton seals for chemically aggressive environments
• ATEX: certified version for explosive atmospheres

The Varvel FRS50 directly replaces reducers from major brands in the sector

For a reliable replacement, ensure that the existing output shaft is Ø25 mm. In case of renovation or modernization, send the nameplate of your current reducer to quickly identify the technically equivalent or superior solution.

The FRS50 is interchangeable with reducers from the following manufacturers:

• Motovario
• Bonfiglioli
• SITI
• STM
• SEW-Eurodrive (depending on configurations)
• Rossi

Our team of technical experts is at your disposal to assist you in choosing the most suitable reducer for your constraints and to ensure a quick return to production, without modifying your existing installation.