Most efficient solution for your dry bulk handling

Through exhaustive computer simulations, Nemag has succeeded in developing a new generation of patented grabs: the NemaX®.

This innovative & strong grab delivers more than 10% higher productivity than all comparable clamshell grabs, with the lowest maintenance costs ever.

A good design, in combination with the use of high-tensile wear resistant steel as well as an excellent bearing system, makes this a strong grab with a relative low dead weight and high productive capacities.

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For more information, you can download the NemaX quick guide here.

For a clear comparison between the NemaX and a clamshell grab, check out this blog.


The advantages of the NemaX grab

Below, you can find the advantages that come with the NemaX grab. Want to know about this highly productive grab, or how the adoption of this grab can improve your business, don't hesitate to contact us.


Highest productivity
Deadweight efficiency of only 25-28%
Grab ratio of 2,5 - 3

Shortest cycle times
Optimised closing mechanism
20% shorter closing time
Lightweight, yet very strong
FEM calculated, very robust grab mechanism
Extremely torsion resistant
High closing force on lip plates
Lowest maintenance cost
70% less moving parts compared to Clamshell grabs
Only 2 rotating points
Longer lifespan of closing ropes
Extended free digging & excellent cleaning up 
Higher Free Digging Rate due to low deadweight and short cycle time
Extended Free Digging and shorter Cleaning Up due to big footprint and high stability


Safest operation
Easy access for greasing
Simple rope reeving procedure
(Dis-) connecting the grab on the ground – no climbing in grab required


Scherm­afbeelding 2023-02-14 om 08.43.59

This graph shows how unloading productivity increases with the NemaX opposed to a clamshell grab. 


Customize the NemaX for your situation

All Nemag products are highly customizable modular grabs to fit your specific situation. 

The NemaX is available for: 

Iron ore, Limestone, Pelletized Bauxite, Aggregates, Sands, Concentrates (like Zinc, Copper or lead), Blast furnace sand and Mineral sands (Rutile/zircon).

Download the NemaX Quick Guide for more information about its applicability:

Download the NemaX Quick Guide


Download the whitepaper for more information on:

  • Increasing unloading productivity and terminal efficiency

  • Significantly lowering maintenance costs 

  • Improving the dynamic behaviour at floating transshipment

"The NemaX grab has helped us achieve so many great results in comparison to our prior grab design. Our hourly unloading rate has increased with 48%, there's a notable improved ease of maintenance, and the standard crane load capacity has increased with 5-6 MT". - Jonas Chupe, Voestalpine Texas Group

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Compare your grab to calculate your productivity gain

Compare your existing iron ore grab to the nemaX​® grab and see by how much you can increase your productivity.

Fill in the specs of your current crane and grab.
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Eigenschap Waarde
mechClass -
ProductivityRate 0
OpenClose 0
RC 0
Constante 0
WeightAdd 0
RopeWithdrawal 0
MyCraneCapacity 0
MyGrabWeight 0
MyPayload 0
MyGrabRopeWithdrawal 0
nemaXGrabWeight 0
nemaXGrabRopeWithdrawal 0
RopeWithDrawalAmplifier 0
NemaxPayload 0
MyProductivity 0
NemaxProductivity 0
ImprovedGrabWeight 0
ImprovedPayload 0
ImprovedWithdrawalLength 0
ImprovedProductivity 0


  • 15% Lighter grab = more bulk per cycle*
  • 20% Faster closing and opening = more cycles per hour*
  • 30% Larger footprint = faster cleaning up*


* Relative to comparable clamshell grabs

Request a free Nemax quotation

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

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

Request quotation

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

Riny Stoutjesdijk
Sales manager

+31 111 418 943

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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