The Nemag Clamshell Grab M, the next generation.

Clamshell grab

At Nemag, our team continuously innovates to help you increase your bulk handling efficiency and decrease your operational costs. 

A good example of this is our next generation Nemag clamshell grabs. 

The Nemag Clamshell grabTM is the result of input from our valued customers combined with our team’s experience and drive for continuous improvement, all supported by state-of-the-art design and simulation tools. 

We wanted to create a highly productive clamshell grab that keeps your investment and operational costs as low as possible. 

The benefits for you:

  • Optimal productivity
  • Reduced, simplified maintenance
  • Standardised design using first-class materials and high-end standardised components
  • Rapid delivery times
  • Attractive and competitive price

Our continuous improvement philosophy means we’ve examined our design and have implemented a number of improvements as follows.

The drybulk grabs can be fully assembled and disassembled by means of simple hand tools.
No welding equipment required.


Nemag clamshell equaliser from above

As can be seen in the image, the holding rope equalisers are more accessible by means of an open design. This makes maintenance a lot easier.


Completely open sheave box of a clamshell grab

The lower sheave box and girder feature a very open and rounded design that greatly decreases the risk of material blocking the pulleys and reduces spillage from the grab whilst travelling to and from the receiving hopper.

The benefit for you: enhanced environmental efficiency.


Nemag Clamshell synchronising system up close

The big advantage of the Nemag design concept – the synchronising system – has remained unchanged. It is at the heart of our clamshell grab’s superior performance, guaranteeing 100% symmetrical closure, reduced stress levels in the grab construction and improved digging performance by the grab.

Would you like to know more about the Clamshell GrabTTM or request an obligation-free quote tailored to your needs?

Request a Clamshell Grab quote


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

General contact

+31 111 418 900

You can improve your acceleration with...


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