G / GD Series Radial Piston Motors

High‑performance motors designed for applications requiring strong torque output, smooth operation and long service life. Suitable for winches, drilling equipment, conveyors and heavy‑duty industrial machinery.

HC Series Radial Piston Motors

Compact, efficient motors offering excellent torque delivery and stable performance at low speeds. Used in mobile machinery, industrial drives and systems requiring precise speed control.

HCD Series Radial Piston Motors

An advanced motor series incorporating improved internal geometry for higher efficiency, reduced leakage and enhanced durability. Designed for demanding applications and available in a wide range of displacements.

RC Series Radial Piston Motors

Robust motors suitable for continuous heavy‑duty operation. Designed for applications requiring high reliability, consistent torque and long service intervals.

W Series Radial Piston Motors

Versatile motors offering strong performance across a wide range of industrial and mobile applications. Available with multiple mounting and shaft configurations.

R8C Series (Replacing IAC Motors)

Direct‑replacement motors designed to match the performance and mounting characteristics of legacy IAC units. Suitable for maintaining or upgrading existing systems without major redesign.

R8D Series (Replacing IAMD Motors)

Replacement motors engineered to fit and perform like IAMD units. Ideal for customers needing a modern, efficient alternative that maintains compatibility with existing equipment.

R8M Series (Replacing IAM Motors)

A replacement series designed to match IAM motor specifications. Provides a straightforward upgrade path for systems built around older IAM technology.

Spring‑applied, hydraulically-released brakes designed for safe load holding and controlled stopping. Suitable for winches, hoists, marine drives and other applications requiring reliable braking performance.

PG Series Planetary Gearboxes

Compact, high‑torque planetary gearboxes designed to pair with Italgroup radial piston motors. Used in winches, drilling equipment, conveyors and other heavy‑duty transmission systems.

A range of integrated valve solutions designed to complement Italgroup motors and gearboxes. Options include pressure control, directional control and safety valves for precise system management.

What products does Italgroup manufacture?

Italgroup produces radial piston motors, radial piston flow dividers, negative brakes, planetary gearboxes and integrated valve solutions.

Where are Italgroup hydraulic components made?

All Italgroup products are manufactured in Modena, Italy.

How long has Italgroup been producing hydraulic components?

Italgroup was founded in 1985 and has been developing hydraulic transmission solutions for more than 30 years.

Which industries use Italgroup hydraulics?

Italgroup components are used in industrial machinery, mobile equipment, marine systems, winches, drilling rigs, conveyors and forestry applications.

What are the advantages of Italgroup radial piston motors?

They offer high starting torque, smooth low‑speed rotation, excellent efficiency and long service life. Several series are also designed as direct replacements for legacy motors from other manufacturers.

Does Italgroup offer replacement motors for older units?

Yes. Italgroup manufactures R8C, R8D and R8M series motors designed to replace IAC, IAMD and IAM motors respectively.

What flow divider options does Italgroup offer?

Italgroup produces FD radial piston flow dividers and FDM multi‑stage flow dividers for applications requiring precise synchronisation or multi‑stage flow control.

Does Italgroup manufacture brakes and gearboxes?

Yes. Italgroup offers spring‑applied negative brakes and PG series planetary gearboxes designed to pair with their radial piston motors.

Can Hydraulics Online help identify an Italgroup component?

Yes. We can identify motors, flow dividers, brakes or gearboxes from part numbers, application details or photographs and advise on suitable replacements or alternatives.

Do you supply Italgroup hydraulics worldwide?

Yes. Hydraulics Online supplies Italgroup products globally with full export documentation and technical support. We are the only official Export Champion in the UK hydraulics industry and have supplied customers in more than 130 countries since 2004.

Italgroup Hydraulics

Hydraulics Online Motor Expertise: Italgroup radial piston motors for industrial, mobile and marine hydraulic applications

Italgroup is an Italian manufacturer specialising in high‑performance radial piston motors, flow dividers, brakes and planetary gearboxes.

Italgroup manufactures radial piston hydraulic motors and radial piston flow dividers. Their equipment offers solutions to more than 200 applications in industrial automation, mobile machinery, marine and offshore, and mining machinery.

The Italgroup product range comprises motors with displacements from 20cc to 13000cc, flow dividers with an extensive oil flow range, and a wide variety of related accessories. Furthermore, their products allow for fixed- and dual-speed versions to be combined with planetary gearboxes, brakes and many different valves.

Optimising rotary drive efficiencies

Italgroup radial piston motors optimise rotary drive efficiencies thanks to the constant torque maintained for the entire speed range – even at very low speed and starting condition. Available from 20cc to 13,000cc, in single, dual and triple displacement, these hydraulic motors can be supplied in combination with mechanical brakes, planetary gearboxes, flow dividers and several accessories. Additional options include, valves, speed sensors and anticorrosion treatments.

Their motors are directly interchangeable with those of other manufacturers including Dinamic Oil hydraulic motors and Duesterloh (Dusterloh) motors. In addition they are directly compatible with: Staffa hydraulic motors (Kawasaki Precision Machinery), Riva Calzoni radial piston motors and Sai hydraulic motors.

Italgroup Radial Piston Motor Series Overview

Italgroup low‑speed, high‑torque radial piston motors are designed for demanding industrial, mobile and marine applications. These motors deliver high starting torque, smooth rotation at low speeds and excellent efficiency across the entire operating range. Italgroup offers multiple motor series to suit different performance requirements, mounting standards and replacement needs, including direct replacements for legacy motors from other manufacturers.

Italgroup Flow Dividers, Brakes, Gearboxes and Valves Overview

In addition to their radial piston motors, Italgroup manufactures a range of hydraulic components designed to support precise flow control, safe load holding and efficient power transmission. These products are used in industrial, mobile and marine applications where reliability, accuracy and long service life are essential and are summarised below.

Italgroup Product Catalogue

Italgroup G and GD Series Motors

Compact – High Speed Single and Dual Displacement Radial Piston Motors Italgroup G and GD motors have 9 radial pistons…

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Italgroup HC Series Motors

Swivel Cylinder – Single Displacement Radial Piston Motor Italgroup HC (High Cavitation) series motors are single displacement crankshaft radial piston…

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Italgroup HCD Series Motors

The Italgroup HCD series motor is is a high performance radial piston motor capable of working up to 450 bar…

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Italgroup Negative Brakes

Italgroup brakes are spring-applied hydraulic-released parking / emergency brakes. Available in models: RA | RB | B1 | B2 |…

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Italgroup PG Series Planetary Gearbox

The Italgroup PG series planetary gearbox range is divided into 21 basic groups, depending on the different torques to be…

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Italgroup R8C Series Motors – Replacing IAC Motors

The Italgroup R8C motor series is the evolution of the former Italgroup IAC series motor. It captures 20 years of…

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Italgroup R8D Series Motors – Replacing IAMD Motors

Italgroup R8D is a heavy duty, single displacement hydraulic motor. The R8D motor is the evolution of the former Italgroup…

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Italgroup R8M Series Motors – Replacing IAM Motors

Single Displacement Radial Piston Motor The new Italgroup R8M motor series reflects more than 20 years' worth of improvements to…

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Italgroup RC Series Motors

Wheel Motor with Drum Brake Italgroup RC wheel motors comprise a radial piston motor and drum brake for dynamic/parking braking.…

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Italgroup W Series Motors

Single and Dual Displacement Wheel Motor Italgroup W-series hydraulic motors are crankshaft radial piston motors combined with a single stage…

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Italgroup Valves

Italgroup have a complete range of compatible flangeable valves for hydraulic motors; all have steel bodies. The series comprises: RVDA…

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Italgroup FD Series Radial Piston Flow Dividers

Italgroup FD series radial piston flow dividers allow a single flow to be divided into two output flows; pressure independent…

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Italgroup FDM Series Multi-Stage Radial Piston Flow Dividers

Italgroup FDM series radial piston flow dividers allow a single flow to be divided in to up to 10 sections,…

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Hydraulics Online and Italgroup

Hydraulics Online supplies the full range of Italgroup radial piston motors, flow dividers, brakes, gearboxes and valve solutions. As an independent hydraulic supplier, we provide unbiased technical support and help ensure you identify the correct Italgroup component or a suitable alternative for your application. You do not need to know the exact part number or specification. Share whatever information you have and we will take it from there.

We can assist with:

Selecting the correct Italgroup radial piston motor across the G, GD, HC, HCD, RC, W, R8C, R8D and R8M series
Identifying suitable displacements, torque requirements and mounting configurations
Replacing legacy motors such as IAC, IAMD and IAM with compatible Italgroup equivalents
Specifying FD and FDM radial piston flow dividers for synchronised movement or multi‑stage flow control
Pairing Italgroup motors with PG series planetary gearboxes for complete transmission solutions
Supplying negative brakes and integrated valve options for safe load holding and precise system control
Supporting new system design, upgrades or replacement units where original documentation may be limited.

Need technical guidance or can’t find the hydraulic equipment you’re looking for? Get in touch – our team will support you.

Italgroup Insights

Discover the Italgroup HCD High‑Pressure Radial Piston Motor

Italgroup has been producing advanced radial piston motors and flow dividers for more than 30 years from their headquarters in Modena, Italy. One of the most significant milestones in their development was the launch of the HCD radial piston motor series in 2016.

The HCD series was created to solve a long‑standing challenge in hydraulic transmission design: achieving smooth, controlled rotation at very low motor speeds without compromising torque or efficiency. Building on Italgroup’s commitment to innovation, first established by founder Luciano Ghiaroni in 1985, the HCD series introduced new internal geometry and design improvements that deliver higher efficiency, reduced leakage and exceptional low‑speed performance.

To explore the full technical detail and benefits of the HCD series, you can read our in‑depth article below.