For the fastest and most reliable handling of your bulk goods

The Nemag Clamshell Grab is the lightest and most productive clamshell grab bucket on the market. The productivity increase that you can experience with the Clamshell​ is the result of our 95 years of experience and input we’ve gathered from customers from all over the world. The Clamshell is manufactured using state of the art technology such as Solidworks and FEM & TACTON Product Configurators.

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"The average grab-filling rate over all
these years thereby is an astonishing load of 24,3 t/cycle.
Almost unbelievable, considering the off-shore conditions and that the majority of our total unloaded quantity is Columbian coal."

- Harry Vaes, Plant manager at ISKOLDEN, moving 3,4 million Tonnes of coal annually.


Best clamshell quality for competitive pricing 

By using the latest innovations in engineering we have updated our manufacturing process and enhanced our clamshell grab with modular parts. The result is a competitive price, while still using the highest quality high tensile wear resistant steel. The optimized manufacturing process also guarantees a shorterlead time for the Clamshell Grab​. This dry bulk grab is available with a 100 ton capacity. 

To keep the capital expenditures of the Clamshell Grabs​​ as low as possible we’ve decreased logistics costs by designing this four-rope grab with container shipping in mind. This significantly reduces the costs of transportation to your location.

Check out this blog on our updated Clamshell grab for more interesting facts. Or read this article to discover the differences between our Clamshell grab and research backed NemaX grab.

Foto Oranje grijperLowest bucket maintenance costs

Market research shows that the highest cost of any grab will always be the operating expenditure, OPEX. We want to keep the OPEX of our customers as low as possible. That is why we only use the most durable materials and decreased the number of parts that are open to wear and tear. We’ve also made it easier to reach and maintain the different parts of the Clamshell Grab​.

That is how we can promise your team a safe work environment and the lowest maintenance costs per tonne transferred.


Download the Clamshell product brochure for more information on its applicability. Additionally, you can learn about our service and maintenance or leadership in quality. Can't find the information you are looking for? Do not hesitate to contact us or schedule a meeting 

Download the Clamshell Grab brochure


Characteristics of our Clamshell Grabs

100% symmetrical closing Reduction of stress in grab construction Short delivery times and enhanced ease of maintenance
Equalizer is supported by double row cylindrical bearings  Round support beam reducing spillage of cargo Very open design, no risk of material blocking the pulleys


Material handling video's

The added value of the clamshell grabM

  • Worldwide availability of parts
  • Competitive price point
  • Easy to assemble and disassemble
  • Optimised production for quick delivery

Request detailed pricing information

Do you want to know more about the competitive price of The Clamshell GrabM? Fill out the form and we will get back to you within 48 hours.

Thank you for your interest in Nemag.

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metric tons
metric tons

Best materials to handle with the Clamshell grab bucket

The Clamshell Grab is available as a highly customizable modular grab for lifting capacities starting at 20 metric tons up 100 ton safe working load.

If you are however looking for a non-standard clamshell grab bucket, please do not hesitate to contact our sales team. They will be happy to help you with all the special requests that you have!

The Clamshell is available for the following bulk materials:

  • Iron ore
  • Coal
  • Cokes
  • Fertilizers
  • Limestone
  • Gypsum
  • Grains
  • Soy
  • and much more


Download the brochure for more information on the Nemag Clamshell Grab. Can't find the information you are looking for? Contact us or schedule a meeting.

Request a free Clamshell grab quotation

Do you want to improve your productivity and reduce your maintenance costs?
Request a free Clamshell grab quotation.

We will provide detailed pricing information on your new dry bulk grab within 48 hours.

Request quotation
Liebherr crane unloading drybulk with clamshell grab


If you have any questions please feel free to contact us.
We are happy to help you!
Book a meeting

Riny Stoutjesdijk
Sales manager

+31 111 418 943

Crane grab partner of

Liebherr Mobile and Crawler Cranes Konecranes industrial cranes and lifting equipment Kirow Ardelt Crane Manufacturer Italgru Port Cranes and Offshore Cranes Dhhi Cranes Zpmc

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Oh my grab!

To calculate your productivity increase we need additional information. As we’re not familiar with your current installation. Please share your email address for us to contact you.

We will get back to you as soon as possible

Compare the grab glossary

Crane capacityIs the Safe Working Load of your crane in tons in grab duty, i.e. the total sum of grab dead weight and payload.

PayloadIs the nett load of cargo in the grab. Because it’s linked with the grab weight it will be filled in automatically.

Grab weightIs the Dead weight of your existing grab. Not sure? Check your grab manual, CE declaration, or on the ID plate on your grab.

Grab rope withdrawal lengthIs the length of the closing rope which needs to be pulled out in order to close the grab (not to confuse with the total reeved in grab rope length).

Not sure about the numbers?Check the grab manual. Don’t hesitate to contact us.

Riny Stoutjesdijk
Sales manager

+31 (0)653109307