جديد قادوس الحفارة Liebherr CLAMSHELL GRABS - 4 CYLINDERS

4-Cylinder Clamshell Grab Bucket Designed by Nur Group

The 4-cylinder Clamshell Grab Bucket, designed by Nur Group, is a heavy-duty attachment developed for fast, safe, and efficient handling of high-density materials. With capacity options ranging from 0.5 m³ to 28 m³, it can be easily integrated into excavators, cranes, and ship cranes of various tonnages.

Clamshell Bucket Features

Capacity Range: 0.5 m³ – 28 m³

Number of Cylinders: 4 double-acting hydraulic cylinders

Operating Pressure: 180 – 260 bar

360° Rotation Unit: Optional hydraulic rotator support

Application Areas

Mining and quarry operations

Port loading/unloading

Scrap handling

River and canal dredging

Aggregate and sand transportation

Materials Used

Body and Grab Jaws

Hardox® 400 / 450 or Domex® high-strength steel

Long-lasting and impact-resistant structure against wear

Cylinder Sleeves and Pistons

Made from induction-hardened 42CrMo4 steel

Sealing elements by Parker, Hallite, Merkel

Pins and Bushings

Heat-treated 42CrMo4 steel

Surface hardness: 50–55 HRC

Nickel plating for corrosion resistance

Cutting Edges

HB500 wear plates

Optional bolted, replaceable tip system

Production Process

✅ Design and Engineering

Maximum durability with CAD modeling and FEA analysis

✅ Cutting and Bending

Precision manufacturing using CNC plasma/laser cutting and press brake machines

✅ Welding

High-strength joints with MIG/MAG and submerged arc welding technologies

✅ Assembly and Testing

Hydraulic system assembly followed by high-pressure tests and quality control

✅ Painting and Protection

Industrial 2+2 paint system for high corrosion resistance

Optional C5-M paint for marine environments

Why Choose Nur Group Engineering - NG Attachments Clamshell Buckets?

✔ High closing force for dense materials
✔ Low maintenance cost with long-life Hardox structure
✔ Flexible volume and connection options
✔ All models customizable on a project basis

✅ High-capacity clamshell bucket production from 0.5 m³ to 28 m³
✅ Suitable for various applications such as excavator attachment, port grab, scrap handling bucket
✅ All models are designed and tested according to industrial standards

If you're looking for a durable and efficient clamshell bucket tailored to your project, discover Nur Group Engineering.
Contact us now for quotation and technical support.