Varvel Worm Gearbox - F RS 70 - Output Shaft Ø28mm

Varvel FRS70 Ø28mm: the worm gear reducer designed for the most demanding industrial and agricultural transmissions

Combining high mechanical resistance, compactness, and versatility, the Varvel FRS70 worm gear reducer is a reliable benchmark for the industrial and agricultural sectors. Designed to operate in intensive conditions, it ensures durable and precise transmission while limiting maintenance needs.

Manufactured in the Italian region of Emilia-Romagna, globally recognized for its expertise in mechanical transmission, the FRS70 efficiently equips conveyors, mixers, transport systems, agricultural machinery, automated lines, and labeling machines, as well as any equipment subject to continuous operation.

At Dymatec Industries, each FRS70 reducer is meticulously inspected and configured to ensure perfect compatibility with your existing industrial installations.

In which sectors and applications is the Varvel FRS70 worm gear reducer used?

Its ability to provide high torque at low speed combined with its installation flexibility makes the FRS70 an essential transmission component in many areas. It is notably used on:

• Conveyors and conveyor belts: moving parts, packages or bulk products on production lines
• Mixers and agitators: stirring and homogenization in the food, chemical or pharmaceutical industries
• Worm screws and dosing systems: controlled feeding of raw materials in the agri-food and plastics industries
• Agricultural machinery: spreaders, seeders, irrigation systems and harvesting equipment
• Gates and lifting systems: motorization of barriers, industrial valves and automatic hatches
• Pumps and compressors: low-speed drive for viscous or highly loaded fluids
• Packaging and labeling lines: precise control of speeds on packaging lines
• Handling equipment: lifting tables, motorized conveyors and automated transfer systems

Its reduced noise level and small footprint – characteristics inherent to worm and wheel transmissions – make it a particularly suitable solution for environments where acoustic discretion, compactness, and robustness are priorities.

The G-version coupling ensures lossless torque transmission and minimizes machine downtime

The FRS70 features a G-version motor-reducer coupling ensuring efficient, direct and lossless torque transmission. This system prevents motor shaft seizing during prolonged shutdowns, significantly reduces the frequency of technical interventions, and allows you to reduce your operating costs in the long term.

Precisely determine your output speed thanks to the 12 reduction ratios of the FRS70

The FRS70 is available in 12 reduction ratios: 5, 7, 10, 15, 20, 28, 40, 49, 56, 70, 80, and 100, allowing for fine adjustment of the output speed and torque required for each application. The calculation is immediate: motor speed ÷ reduction ratio = output speed.

Four mounting options for flexible installation on all types of equipment

The FRS70 is easily installed thanks to its multiple mounting configurations:

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

Ø28 mm hollow shaft supplied as standard, with possibility of custom output configuration

The FRS70 is supplied as standard with a Ø28 mm hollow shaft ensuring a direct, precise, and play-free connection to your machine. Two alternative output configurations are available depending on needs:

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

The FRS70 accepts IEC 71, 80, 90, and 100 standardized motors

The reducer is compatible with the following IEC standard motor input flanges:

These combinations ensure a rigorous mechanical connection between motor and reducer for optimal and uncompromising power transfer.

Customize your FRS70 reducer thanks to its many configuration options

The FRS70 comes in several technical variants to adapt to the 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: reduced backlash version for high-precision applications
• VB: worm shaft extension opposite the shaft
• VIT: Viton seals for chemically aggressive environments
• ATEX: approved version for potentially explosive atmospheres

The Varvel FRS70: a direct substitute for reducers from leading manufacturers on the market

For a reliable and risk-free replacement, ensure that the existing output shaft is Ø28 mm. In case of renovation or modernization of an installation, send us the nameplate of your current reducer to quickly identify the equivalent or technically superior solution.

The FRS70 is interchangeable with reducers from the following manufacturers:

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

Our team of technical specialists remains available to guide you towards the most suitable solution for your constraints and guarantee a quick return to service, without modifying your production infrastructure.