When it comes to bulb grading, cleaning, conveying and handling, Tong offers unrivalled experience and expertise.

We design and manufacture custom built bulb grader and bulb conveyor machines, as well as bulb handling equipment (including infeed bulb hoppers).

Manufactured to offer gentle yet effective bulb cleaning and grading, Tong’s range of bulb handling equipment allows you to effectively sort and pack your bulbs from field to box or bag! From heavy duty bulb hoppers that are built to receive bulbs straight from the field, to efficient bulb coil cleaners for effective soil removal, and robust lift roller graders for an accurate bulb conveyor, Tong’s team of design engineers pride themselves in listening to your bulb grading and handling needs and creating a solution to suit your specific requirements.


Tong is one of the world’s leading manufacturers of quality vegetable grading equipment, and when it comes to grading bulbs it is no exception. The most popular method of bulb grading is by lift roller grading units. Tong manufactures a wide range of lift roller graders that offer accurate allium and bulb grading, sizing bulbs by their width/diameter upon a series of moving grading rollers.

The bulb grading rollers are manufactured with a fixed row of under-rollers, and adjustable height top rollers. The gaps between the rollers create the specified grade sizes, which increase as the bulbs pass over the roller bed. Small sized bulbs pass through the lift roller grader first, and subsequent grades are achieved as they pass over the increasingly spaced rollers. Tong’s market leading lift roller graders can be manufactured to achieve a wide variety of bulb grading sizes to suit your specific requirements.

For more details on Tong’s lift roller graders suitable for bulb grading please click here.

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BULB cleaning

An important part of the bulb sorting and handling process is effective bulb cleaning to remove soil and dust from bulbs post-harvest, Tong manufactures a number of bulb cleaners. These can be integrated as part of a complete mobile or static bulb handling system, or alternatively, they can be used as a stand-alone machine.

A bulb rod cleaner is one of the most popular bulb cleaning machines. The machine is built to incorporate a cleaning barrel, featuring a drum comprising of a series of rods. The bulb rod cleaner gently tumbles the bulbs as they pass through the barrel, loosening any soil or debris from harvest and effectively removing it.

Tong’s coil cleaner is also a popular bulb cleaning system which allows bulbs to pass over a series of coil shafts whilst soil and debris falls through the coils and onto a waste bulb conveyor. Coil cleaning of bulbs is  a very effective way of removing soil from bulbs, and when using an adjustable coil cleaner, the gap between the coils can be set to allow small bulbs to be graded out by the coils.

For more information on Tong’s range of bulb cleaning equipment click here.

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BULB inspection

Tong manufactures bulb and allium inspection facilities to suit all bulb handling situations, available as roller inspection tables or as a flat inspection bulb conveyor. Tong bulb inspection facilities are manufactured to your exact specification and are built to last.

For more information on Tong bulb inspection tables click here.

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BULB hoppers

If you are looking for a heavy duty, robust and reliable bulb hopper then look no further than Tong Engineering. Manufactured to the highest standards, Tong bulb hoppers are built with strength and performance in mind. Featuring heavy duty chain and lathe construction, Tong infeed hoppers are gentle on crops with a rubber-lined infeed for smooth and gentle transfer of bulbs post-harvest. With capacities to suit all requirements and throughputs, you are sure to find a Tong hopper that suits your bulb handling needs.

For more information on Tong’s wide range of hoppers please click here.

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Tong’s market leading range of box and bag filling equipment is unrivalled for its simplicity in design as well as ease of use, minimal maintenance and gentle handling of crop. So, whether you are looking for gentle bulb filling into boxes or big bags, Tong’s range of bulb filling equipment offers a number of options to fulfill your needs.

One of the most popularly used box fillers for filling bulbs into boxes is the Tong Midi EasyFill box filler which gently cradles crop in the machine’s unique doorstop belt, ensuring minimal drops and the very gentlest handling.

Tong’s Big Bag Bins are often a popular choice to be used alongside the EasyFill box filler, offering efficient filling and bulb weighing.

For more information on Tong’s complete range of bulb filling equipment and bulb weighing equipment, click here.

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Bulb grading machine


Whatever your bulb handling needs, from a stand-alone bulb hopper to a complete bulb handling system, Tong offers a reliable bulb system that will offer added value and increased productivity throughout your bulb weighing, grading and packing operations. We can also add in roller inspection tables at the end of the line, to help with your bulb processing, packaging and bulb hoppers.

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