GEAR
MOTORS

GEAR
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

Power, Reliability, and Customization for Demanding Applications

When high output torque, long service life, and operational reliability are required under the toughest industrial conditions, the Bonfiglioli HDP Series delivers. Built with spheroidal cast iron housings and designed with structural symmetry and compactness in mind, HDP parallel shaft gear units are engineered to withstand continuous stress in harsh environments—including explosive atmospheres—with minimal maintenance and extended service intervals.

Thanks to a modular concept and extensive range of options, the HDP Series offers maximum design flexibility, making it ideal for heavy-duty applications in mining, materials handling, water treatment, energy, and more.

Key Features

• Spheroidal Cast Iron Housing – For superior strength and shock resistance

• Symmetrical Design – Optimized input/output shaft planarity

• Parallel Shaft Output Configuration – Compact and space-efficient

• Wide Accessory Range – Supports broad customization

• ATEX Certified – Suitable for zones 1 and 21 (2G / 2D environments)

Core Benefits

• High torque and power transmission capacity

• Rugged construction for heavy-duty use

• Flexible mounting arrangements

• Low operating and maintenance costs

• High adaptability to project-specific requirements

• Certified for use in explosive atmospheres (ATEX 2G/2D)

Available Options

• Integrated or external fan cooling, cooling coil, or oil heater

• External lubrication systems

• Backstop device for anti-rotation

• Forced lubrication for extreme duty cycles

• Temperature and oil level sensors

• Drywell for vertical installations

• Taconite seals for high-contamination environments

Output Shaft Configurations

• Solid output shaft (single or double-sided, metric or inch)

• Keyed hollow shaft

• Shrink disc connection for secure and backlash-free fit

Motor Input Options

• Input with solid shaft

• Input with motor coupling for:

  • BN, BE, BX: IEC asynchronous motors

  • BSR: IEC reluctance motors

Motor Accessories

• PTC thermistors and thermostat sensors

• Independent forced ventilation

• Incremental or absolute encoders (sin/cos, single/multi-turn)

• Tropicalization treatment

• Anti-condensation heaters

The HDP Series stands at the intersection of performance and durability, offering a robust drive solution with smart engineering and high modularity. Whether in cement plants or energy facilities, Bonfiglioli’s trusted gearbox line, available through Valiadis SA, ensures efficiency without compromise.

Technical Brochure

GEAR
MOTORS

GEAR
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

Proven Reliability for Conveyor Applications

The TA series gearboxes are a recognized best-seller for conveyor belt operations, especially in outdoor environments and mining applications, where durability and low maintenance are critical.
A key feature of the TA series is the optional backstop, which prevents reverse rotation under load — an essential safety component in many conveying systems.

Technical Specifications

Torque Range (at n₁ = 900 min⁻¹):
150 Nm – 16,000 Nm

Mechanical Rating (at n₁ = 1400 min⁻¹):
1.1 kW – 156 kW

Gear Ratios (iₙ):
5.0 – 31.5

GEAR
MOTORS

GEAR
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

Smart Design, Proven Reliability

The VF and W series worm gearmotors represent industry benchmarks worldwide, combining state-of-the-art technology with uncompromising quality and renowned cost-effectiveness. Their intelligent design, enhanced by advanced materials and precision manufacturing, ensures long-term performance and flexibility for a wide range of applications.

Key Features

• Absolute flexibility with a wide range of mounting options, shaft configurations, and motor interfaces — all available as standard.
• Helical-worm and double-worm versions, available with or without torque limiter, offer highly adaptable drive solutions.
• Compact, efficient, and robust — optimized for demanding industrial environments.

Technical Specifications

Torque Range:
13 Nm – 7,100 Nm

Mechanical Rating (at n₁ = 1400 min⁻¹):
0.04 kW – 75 kW

Gear Ratios:
7 – 10,000

Output Configurations

• Keyed hollow shaft
• Plug-in solid output shaft
• Optional torque limiter

Input Configurations

• IEC-normalized motor adapters
• Solid input shaft

Applicable AC Motors

• Integral motors and brake motors – M series / ME series
• IEC-normalized motors and brake motors – BN series / BE series
• Single and dual-speed motors

Main Brake Features

• DC and AC supply
• Fast brake engagement/disengagement via electronically controlled AC/DC rectifiers (Types SB, NBR, SBR – optional)

Main Motor Options

• Thermistors and thermostat sensors for thermal protection
• Separate supply forced ventilation
• Incremental encoders (Line Driver and Push-Pull types)

GEAR
MOTORS

GEAR
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

Harnessing Decades of Know-How

The C Series offers the perfect balance of torque density, product variety, broad speed range, compact design, and cost-effectiveness, establishing itself as an unparalleled line of helical gearmotors and speed reducers.

Technical Specifications

Torque Range:
45 Nm – 12,000 Nm

Mechanical Rating (at n₁ = 1400 min⁻¹):
0.08 kW – 213 kW

Gear Ratios:
2.6 – 1481

Output Configurations

• Foot and flange mounting
• Metric or Inch series solid output shaft

Input Configurations

• IEC and NEMA motor adapters
• Metric or Inch series solid input shaft

Applicable AC Motors

• Integral motors and brake motors – M series
• IEC-normalized motors and brake motors – BN series
• Single and dual-speed motors

Main Brake Features

• DC and AC supply options
• Fast brake engagement/disengagement via electronically controlled AC/DC rectifiers (Types SB, NBR, SBR – optional)

Main Motor Options

• Thermistors and thermostats for temperature monitoring
• Separate supply forced ventilation
• Incremental encoders (Line Driver and Push-Pull types)

GEAR
MOTORS

GEAR
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

A Series – Where Efficiency Meets Versatility

The A Series sets a new standard by combining high efficiency and unmatched versatility, delivering exceptional performance in a highly competitive market, both in terms of capability and cost-effectiveness.

Technical Specifications

Torque Range:
100 Nm – 14,000 Nm

Mechanical Rating (at n₁ = 1400 min⁻¹):
0.22 kW – 150 kW

Gear Ratios:
5.4 – 1715

Output Configurations

• Foot and shaft mounting, with two bore options per size
• Keyless shrink disc fitting
• Metric or Inch series solid output shaft
• Adapter bushings to fit various shaft diameters
• Splined hollow shaft to DIN 5480

Input Configurations

• IEC and NEMA motor adapters
• Servomotor adapters
• Metric or Inch series solid input shaft

Applicable Motors

• Integral motors and brake motors – M series
• IEC-normalized motors and brake motors – BN series
• Single and dual-speed motors

Main Brake Features

• DC and AC supply options
• Fast brake engage/disengage via electronically controlled AC/DC rectifiers (Type SB, NBR, SBR – optional)

Main Motor Options

• Thermistors and thermostats for temperature monitoring
• Forced ventilation with separate power supply
• Incremental encoders (Line Driver and Push-Pull types)

GEAR
MOTORS

GEAR
MOTORS

SPECIAL MOTORS

TECHNICAL DATA

The powerful solution to all heavy duty drive problems

Compact, and yet extremely powerful, are the units of the 300 series. Their planetary drive train makes them the ideal choice for all the severe duty applications where shock loadings and impacts are more the rule than the exception. The product configuration is highly versatile, due to several options as far as the mounting, the gear layout, the output shaft and the motor interface. All the features are available for each of the 18 finely spaced frame sizes, spanning over the 1,000 – 1,400,000 Nm torque range. Finding the perfect match to any drive problem is therefore more than a wish, it is something users can safely rely on – always.

Torque Range

1,000 – 500,000 Nm 

Transmissible Mechanical Power

to 450 kW

Reduction Ratios Range

1:3.4 to 5,000

Gear Unit Version

In line
Right angle (with bevel gear pair Gleason)

Output Configuration

Foot and flange mounted
Output shaft: solid with key, splined, splined hollow hollow shaft with shrink disc

Gear Unit Input Configurations

IEC-normalized Motor Adaptors
Solid Input Shaft

Applicable AC motors

Compact motors and brake motors M series
IEC motors and brake motors BN series
Single and dual speed motors

Main Brake Motor Features

DC and AC brake
Fast Braking and/or brake releasing through
SB, NBR, SBR optional electronic devices