CategoryMechanical Variators
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Mechanical Variators

Transtecno mechanical variators provide continuous 1:5 speed adjustment for machinery that needs practical speed control through a mechanical drive package.

Transtecno VAM mechanical speed variator
Mechanical Speed Variator

Transtecno VAM Mechanical Variators

Standalone VAM mechanical variators for continuous speed adjustment, with IEC B5 motor flange, 1:5 speed range and aluminium or cast iron frame construction depending on size.

Continuous 1:5 speed range for practical mechanical speed adjustmentSpeed regulation precision of approximately +/- 0.5 to 1%Can operate in either direction according to motor rotation
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Transtecno CMGV mechanical variator and helical gearbox
Mechanical Variator and Helical Gearbox

Transtecno CMGV Mechanical Variators and Helical Gearboxes

CMGV units combine a VAM mechanical variator with a CMG helical gearbox for adjustable-speed in-line gearbox applications requiring higher torque than a standalone variator.

Combines a mechanical speed variator with a helical gearboxContinuous 1:5 speed rangeSpeed regulation precision of approximately +/- 0.5 to 1%
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Transtecno CMV mechanical variator and worm gearbox
Mechanical Variator and Worm Gearbox

Transtecno CMV Mechanical Variators and Worm Gearboxes

CMV units combine a VAM mechanical variator with a CM worm gearbox for adjustable-speed right-angle drive applications requiring high reduction and compact layout.

Combines a mechanical speed variator with a worm gearboxContinuous 1:5 speed rangeSpeed regulation precision of approximately +/- 0.5 to 1%
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Continuous Speed Adjustment
The VAM variator platform provides a continuous 1:5 speed range for applications where output speed needs to be adjusted while the unit is running.
Application Flexibility
Choose a standalone VAM variator, a CMGV helical gearbox combination, or a CMV worm gearbox combination depending on torque, layout and reduction needs.
Industrial Construction
Smaller aluminium frames keep the units compact, while larger sizes use cast iron construction for heavier duty applications.
Local Selection Support
Motordrives Australia can help match variator size, gearbox style, output speed and mounting position to your machinery.
Collection Overview

Mechanical Speed Control For Industrial Drive Systems

Mechanical variators are used when a machine needs adjustable output speed from a compact mechanical drive rather than a fixed-speed gearbox alone.

The Transtecno mechanical variator range is built around the VAM planetary cone-disk variator. It gives continuous 1:5 speed adjustment, precision speed regulation of approximately +/- 0.5 to 1%, and operation in either direction according to motor rotation.

For applications that need additional reduction or a specific output arrangement, the VAM variator can be combined with helical gearboxes in the CMGV series or worm gearboxes in the CMV series. This creates a practical adjustable-speed gearmotor package for conveyors, feeders, dosing equipment, packaging machinery and general industrial systems.

More About Mechanical VariatorsConstruction, features and product selection information

Mechanical Variator Product Options

The mechanical variator range has three practical product paths. VAM suits applications where the variator itself is the primary requirement. CMGV adds a helical gearbox for compact in-line reduction, while CMV adds a worm gearbox for right-angle output and higher reduction needs.

Choosing Between VAM, CMGV And CMV

Start with the speed range, torque and mounting layout. If the machine already has a gearbox arrangement, it may be more efficient to match the existing style. If it is a new build, the output shaft position, ratio and service duty will usually determine whether the helical or worm gearbox combination is the stronger fit.

Product Support Across Australia

Motordrives Australia can help with new machinery, replacement enquiries and technical matching for Transtecno mechanical variator products. Include any nameplate details, dimensional constraints and operating conditions when requesting a quote.

Where Mechanical Variators Are Used6 common applications and sectors

Mechanical variators suit equipment that benefits from simple, repeatable speed adjustment and a robust mechanical drive train.

  1. 01

    Conveyors

    Adjustable output speed helps tune conveyor flow rates without changing sprockets, pulleys or gearbox ratios.

  2. 02

    Feeders And Dosing

    Mechanical variators are useful where material feed rate needs practical adjustment during operation.

  3. 03

    Packaging Machinery

    Variable mechanical speed control can help match machine pace to product handling or line speed requirements.

  4. 04

    Process Equipment

    Mixers, pumps and rotating equipment can use mechanical variation where fixed-speed operation is too limiting.

  5. 05

    OEM Machinery

    Machine builders can use VAM, CMGV or CMV packages to provide adjustable speed without designing a custom drive system.

  6. 06

    Maintenance Replacements

    The range can be specified for replacement work where an existing Transtecno mechanical variator needs matching.

Technical Support

Information To Prepare Before Enquiring

Mechanical variator selection depends on more than motor power, so the best enquiry includes the required operating range and installation details.

  • Required minimum and maximum output speed
  • Motor power, voltage, poles and input speed
  • Required output torque or details of the driven load
  • Mounting position and available space
  • Preferred gearbox style: standalone variator, helical gearbox or worm gearbox
  • Existing model code, nameplate photo or catalogue reference if replacing a unit

Selection Snapshot

Start with the speed range and torque requirement, then choose the output style that best suits the machine.

VAM
Standalone mechanical speed variator
CMGV
Variator with helical gearbox
CMV
Variator with worm gearbox
Control Note
Adjust speed while the variator is running
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Why Motordrives

Practical Support For Variable-Speed Mechanical Drives

Motordrives Australia supports engineers, OEMs and maintenance teams with enquiry-led product selection for Transtecno mechanical variators.

01

Model Matching

If you are replacing an existing unit, our team can work from model codes, photos and performance requirements.

02

Range Coverage

The category includes standalone variators, helical gearbox combinations and worm gearbox combinations.

03

Quote-Focused Guidance

We help gather the details needed to quote a realistic drive package for the actual application.

FAQs

Mechanical Variator FAQs

What is a mechanical variator used for?

A mechanical variator is used to provide adjustable output speed through a mechanical drive system. It is useful on conveyors, feeders, packaging machinery and process equipment where the machine speed needs to be tuned during operation.

What is the speed range of the VAM variator?

The Transtecno VAM variator provides a continuous 1:5 speed range, with speed regulation precision of approximately +/- 0.5 to 1%.

What is the difference between VAM, CMGV and CMV?

VAM is the standalone mechanical speed variator. CMGV combines a mechanical variator with a helical gearbox, while CMV combines a mechanical variator with a worm gearbox for higher reduction and right-angle output arrangements.

Can the variator speed be adjusted while stopped?

No. The brochure notes that speed adjustment should be carried out while the variator is running, and the handwheel should not be adjusted when the motor is off.

Do I need the exact model before requesting a quote?

No. If you do not know the exact model, send the application details, photos, required speed range and motor information and Motordrives Australia can help narrow down the correct option.

Need A Mechanical Variator Quoted?

Send us the speed range, motor details, torque requirement and mounting information and our team can help quote the right VAM, CMGV or CMV product.

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