Varvel Worm Gear Reducer - F RS 70 - Output Shaft Ø30mm

Discover the Varvel FRS70 Ø30mm gearbox: robustness and performance for your industrial and agricultural transmissions

Specifically designed for the most demanding production environments, the Varvel FRS70 worm gear reducer stands out for its mechanical strength, compactness, and excellent versatility. Equally suited for industrial and agricultural applications, it guarantees reliable, precise, and durable transmission, while minimizing maintenance interventions.

Born from the industrial expertise of the Emilia-Romagna region in Italy, the FRS70 is used on conveyors, mixers, transport systems, agricultural machinery, automated lines, and labeling machines, as well as on any equipment subject to intensive and continuous operating cycles.

At Dymatec Industries, each FRS70 gearbox undergoes rigorous verification and precise configuration to ensure optimal compatibility with your current production equipment.

The FRS70 Ø30mm worm gear reducer: what applications and sectors?

Its ability to generate high torque at low rotation speeds, combined with great installation flexibility, makes the FRS70 a versatile transmission component, present in many industrial and agricultural sectors:

• Conveyors and belt conveyors: conveying parts, packages, or bulk materials on production lines
• Mixers and agitators: homogenization of food, chemical, or pharmaceutical products
• Screw conveyors and dosing systems: controlled distribution of raw materials in the food and plastics industries
• Agricultural machinery: spreaders, seeders, irrigation equipment, and harvesting machinery
• Gates and lifting systems: automation of barriers, industrial valves, and motorized hatches
• Pumps and compressors: low-speed drive for viscous or heavily loaded fluids
• Packaging and labeling lines: precise regulation of speeds on packaging lines
• Handling equipment: lifting tables, transfer systems, and motorized trolleys

Its low noise level and reduced footprint—two intrinsic advantages of worm gear transmissions—make it a particularly appreciated solution in environments where quietness, compactness, and longevity are essential criteria.

The G-version coupling eliminates seizing and reduces your operating costs

The FRS70 features a G-version motor-gearbox coupling ensuring direct, precise, and energy-loss-free torque transfer. This device effectively prevents motor shaft seizure during prolonged shutdowns, limits unplanned corrective interventions, and allows you to sustainably reduce your maintenance costs.

Optimize your output speed with the 12 reduction ratios of the FRS70

The FRS70 offers 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 transmitted torque according to the constraints of each application. The calculation is simple: motor speed ÷ reduction ratio = output speed.

Four mounting configurations for seamless integration into your equipment

The FRS70 offers several mounting solutions to adapt to all installation situations:

• Casing mounting (PC, PA or PB version)
• FL, FA or FR output flange  with standardized center distances
• Mounting on mounting feet
• Torque arm with silent block to neutralize vibrations and dynamic forces

Ø30 mm hollow shaft as standard, with output configurations adaptable to your needs

The FRS70 is supplied as standard with a Ø30 mm hollow shaft for a direct, compact, and backlash-free connection to your machine. Two alternative output options are available for specific needs:

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

The FRS70 Ø30mm is natively compatible with IEC 71, 80, 90 and 100 motors

The gearbox accepts motor input flanges compliant with the following IEC standards:

These combinations guarantee a precise and reliable mechanical link between motor and gearbox for optimal power transfer.

Adapt your FRS70 to each application thanks to the many technical options available

The FRS70 can be configured according to the specific requirements of each installation:

• 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 on the side opposite the shaft
• VIT: Viton seals for chemically aggressive environments
• ATEX: certified version for explosive atmospheres

The FRS70 Varvel Ø30mm: interchangeable with gearboxes from major industrial brands

To guarantee a reliable replacement, verify that the existing output shaft is indeed Ø30 mm. In case of equipment modernization or renovation, provide the nameplate of your existing gearbox to immediately identify the technically equivalent or superior solution.

The FRS70 is compatible for replacement with the following manufacturers:

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

Our dedicated technical team is at your disposal to advise you on the most suitable gearbox for your constraints and ensure rapid production resumption, without modification of your existing infrastructure.