Bonfiglioli Transmission and Automation Product Selection Reference

Bonfiglioli Industrial Transmission and Automation Product System Selection Engineering Reference

In the field of industrial transmission and automation, system integrators and field engineers often face a core challenge: how to quickly and accurately select the most suitable combination solution for specific working conditions among complex motors, reducers, frequency converters, and precision control components. As a world-class supplier of power transmission and control solutions with over 60 years of experience, Bonfiglioli's product line covers a complete chain from conventional gear motors to high dynamic servo systems, from universal frequency converters to explosion-proof drives. This article will systematically review the technical positioning, selection logic, and collaborative integration points of Bonfiglioli's main product lines from an engineering application perspective, providing engineers with a practical product system reference manual.

Selection logic of gear motor and reducer product line

Bonfiglioli's gear motors and reducers are divided into multiple series based on transmission structure and application scenarios. Engineers need to match them reasonably according to installation methods, load characteristics, and speed ratio requirements.

1. A series - helical bevel gear motor

This series combines the high load-bearing capacity of helical gears with the right angle transmission advantage of bevel gears, with a torque range of 100-14000 Nm and a power coverage of 0.22-150 kW (1400 min ⁻¹ input). Its output forms are extremely diverse, including various options such as foot/flange installation, key bonded hollow shaft, keyless shrink disc, metric/imperial solid shaft, spline hollow shaft, etc.

Typical applications: conveyor lines, mixers, extruders, lifting equipment.

Key points for engineering selection: The simplest installation method can be selected based on the output shaft form to avoid additional design of transition connectors. For situations that require frequent forward and reverse rotation, pay attention to verifying the radial load capacity of the output shaft bearing; The options of Reinforced bearings and Reduced backlash need to be determined in advance based on dynamic load requirements.

2. C series - inline helical gear motor

The C series emphasizes torque density and compactness, with a torque range of 45~12000 Nm, a speed ratio of 2.6~1481, and a maximum power of 213 kW. Its tooth surface is precision ground, and the operating noise and vibration are extremely low.

Typical applications: pumps, fans, compressors, and general mechanical equipment.

Selection advantage: The speed ratio difference is fine, and precise speed matching can be achieved by replacing gear pairs without the need for additional transmission devices.

3. F series - shaft mounted gear motor

The F series is designed specifically for conveying machinery and bulk material handling, with a torque range of 140~14000 Nm. The output uses a bonded hollow shaft or shrink disc that is directly fitted onto the equipment shaft, eliminating the need for couplings and bearing seats, resulting in an extremely simplified structure.

Key points of the project: During installation, it is necessary to use a torque arm to fix the box body and prevent it from rotating. The tightening torque of the shrink disc must be tightened in a staggered manner according to the instructions, otherwise it may cause slipping or damage to the shaft neck.

4. VF/W Series - Worm Gear Motor

The worm gear structure comes with self-locking characteristics (depending on the speed ratio), with a torque range of 13~7100 Nm and a speed ratio of up to 7~10000 (including two-stage worm gears). The VF series adopts optimized tooth profile and advanced materials, which significantly improves transmission efficiency compared to traditional worm gears.

Typical applications: lifting platforms, valve actuators, packaging machinery, and occasions that require self-locking.

Selection note: Self locking only holds true when the speed ratio is high (usually>40:1) and the static friction coefficient is sufficient. For lifting applications that require reliable braking, additional mechanical holding brakes are still required.

5. 300 series - planetary gear reducer

This series is Bonfiglioli's heavy-duty flagship, with a torque range of 1250~1286000 Nm, a maximum power of 450 kW, a speed ratio of 3.4~5234, and a total of 20 tight differential specifications. Adopting a planetary transmission structure, it has extremely high power density and impact resistance.

Typical applications: mining machinery, grinding machines, rotary drives, shield tunneling machines, large cranes.

Selection points: Two versions are available: inline and right angle (with Gleason bevel gear). The output shaft forms include solid keys, splines, spline hollow, and shrink disc hollow. For working conditions with frequent impact loads, it is recommended to choose a model one level larger than the adjacent specifications and install cooling coils or independent fans.

6. HDP/HDO series - Heavy duty parallel shaft/bevel gear helical gearbox