Product Description
I-MAK IRSD Series Gear Units
The I-MAK IRSD Series Gear Units are compact helical-worm gearboxes for industrial speed reduction and torque transmission. Moreover, the combined gear arrangement delivers improved efficiency and lower operating noise compared with a simple worm gearbox.
The range supports reduction ratios from 20:1 to 370:1. In addition, suitable configurations accept motor powers from 0.09 to 11 kW.
Therefore, the IRSD Series suits machinery that requires low output speed, useful torque and compact installation dimensions.
Helical-Worm Gear Technology
The first helical reduction stage lowers the motor speed before transferring power to the worm stage. Consequently, the worm gear operates under more favourable speed and load conditions.
The second stage then provides further speed reduction and changes the transmission direction. As a result, the gearbox can achieve high total ratios inside a relatively small housing.
Moreover, the helical stage improves efficiency compared with using a simple high-ratio worm gearbox alone. Therefore, the IRSD Series can provide smoother and quieter performance in continuous industrial applications.
Key Benefits of the IRSD Series
- Combined helical and worm gear construction
- Compact industrial housing
- Reduction ratios from 20:1 to 370:1
- Motor powers from 0.09 to 11 kW
- Maximum torque up to 4,820 Nm
- Output shaft diameters from 20 to 70 mm
- Reduced noise during operation
- Improved efficiency over simple worm gear units
- High-ratio low-speed options
- Foot-mounted configurations
- Flange-mounted configurations
- Motor and IEC-PAM input options
- Optional mechanical backstop
- Multiple gearbox sizes
- Cost-effective modular design
Together, these features support dependable power transmission across many industrial duties. Moreover, the wide ratio range allows users to match output speed with the driven machine.
Available IRSD Models
The official range includes:
- IRSD 43: Maximum torque up to 125 Nm; 20 mm shaft
- IRSD 53: Maximum torque up to 415 Nm; 25 mm shaft
- IRSD 63: Maximum torque up to 825 Nm; 30 mm shaft
- IRSD 73: Maximum torque up to 1,465 Nm; 40 mm shaft
- IRSD 83: Maximum torque up to 2,650 Nm; 50 mm shaft
- IRSD 161: Maximum torque up to 4,820 Nm; 70 mm shaft
Therefore, smaller models suit lighter machinery. In contrast, larger units support conveyors, mixers and heavier manufacturing equipment.
However, maximum torque depends on the selected ratio, motor, service factor and operating conditions. Consequently, users should complete a proper gearbox calculation before selecting the final model.
High Ratios and Low Output Speeds
Many industrial machines require slow, controlled movement. Therefore, the IRSD Series provides ratios up to 370:1 for low-speed operation.
For example, conveyors may require slow belt movement with sufficient starting torque. Similarly, mixers and feeders may require controlled rotation to protect the product and process.
Moreover, the multistage reduction removes the need for additional belts or external reduction equipment. As a result, the complete drive system can remain compact and easier to integrate.
Optional Backstop Protection
A mechanical backstop prevents the gearbox output from rotating in an unintended reverse direction.
Therefore, it can protect inclined conveyors, lifting mechanisms and other applications where reverse movement may create a safety or process risk.
I-MAK documentation lists the backstop for IRS and IRSD Series configurations. However, users must specify the required rotation direction when ordering.
Consequently, installers must not operate the motor in the opposite direction after fitting a backstop. Otherwise, the backstop or drive system may suffer damage.
Input and Mounting Options
Available input arrangements include:
- Gear unit without motor and with PAM flange
- Complete geared motor
- Motor with PAM flange arrangement
Meanwhile, available mounting versions include:
- IRSDM: Foot-mounted geared motor
- IRSDFM: Flange-mounted geared motor
- IRSD: Foot-mounted gearbox
- IRSDF: Flange-mounted gearbox
Therefore, users can select a complete geared motor or connect a compatible motor separately. Moreover, foot and flange arrangements simplify installation on different machine frames.
Compact and Quiet Operation
The combination of helical and worm gears provides several operational advantages.
Firstly, gradual helical tooth engagement supports smooth power transmission. Secondly, the worm stage provides substantial reduction within a compact right-angle arrangement.
Consequently, the gearbox produces less noise than many simple worm units. Moreover, its reduced housing size suits machinery where installation space is limited.
IRSD Series Applications in the UAE
The I-MAK IRSD Series may suit:
- Conveyor systems
- Industrial mixers
- Screw feeders
- Packaging machinery
- Food-processing equipment
- Manufacturing lines
- Material-handling systems
- Textile machinery
- Water-treatment equipment
- Small lifting mechanisms
- Automated production systems
- General process machinery
For example, a conveyor can use a high-ratio model for slow and controlled movement. Similarly, a mixer can use the gearbox to increase output torque while reducing motor speed.
Selecting the Correct IRSD Gear Unit
Correct selection depends on:
- Motor power and speed
- Required output speed
- Required output torque
- Reduction ratio
- Daily operating hours
- Starting frequency
- Shock and reversing loads
- Mounting position
- Backstop requirement
- Ambient conditions
Therefore, users should calculate the required service factor before ordering. Otherwise, the gearbox may operate above its recommended mechanical capacity.
Why Choose I-MAK IRSD Series Gear Units?
The IRSD Series combines high ratios with compact helical-worm construction. Moreover, it provides broad torque, mounting and input options.
Therefore, it is a practical choice for UAE facilities that require quiet operation, low output speeds, optional reverse-motion protection and reliable industrial power transmission.
Request an I-MAK IRSD Gear Unit in the UAE
Contact our drive specialists for technical selection, specifications and UAE pricing.
Please provide the motor power, input speed, required output speed, required torque, mounting position, operating hours and backstop direction. With this information, our team can recommend the correct I-MAK IRSD Series configuration.