Rock grab for excavator, also referred to as a hydraulic rock grab.This excavator attachment mounts directly to the excavator arm, replacing standard buckets or quick hitch adapters. It features two heavy-duty hinged jaws powered by hydraulic cylinders that open wide to surround materials, then clamp firmly to prevent slipping during transport. Rock grabs differ from timber grabs and sorting grabs by prioritising structural strength to withstand impact from heavy stone and sharp broken concrete. There are multiple model variants to match different excavator weight classes, ensuring proper balance and safe operation. Matching grab size to carrier machine weight prevents overloading risks and extends the service life of both the attachment and excavator hydraulic system. When sized correctly, a rock grab maintains stable lifting capacity without straining the excavator’s boom, arm, and hydraulic circuits during long shifts.
Parameters of Rock Grab for Excavator
| Model | YGSR02A | YGSR04A | YGSR06A | YGSR08A | YGSR10A | YGSR14A |
| Suitable Excavator | 4-6T | 7-11T | 12-16T | 17-23T | 24-30T | 31-40T |
| Weight | 360kg | 440kg | 900kg | 1850kg | 2150kg | 2600kg |
| Max Jaw Opening | 1200mm | 1400mm | 1600mm | 2100mm | 2500mm | 2800mm |
| Working Pressure | 110-140bar | 120-160bar | 150-170bar | 160-180bar | 160-180bar | 180-200bar |
| Set Up Pressure | 170bar | 180bar | 190bar | 200bar | 210bar | 250bar |
| Working Flow | 30-55Ipm | 50-100Ipm | 90-110Ipm | 100-140Ipm | 130-170Ipm | 200-250Ipm |
| Cylinder Volume | 4.0*2T | 4.5*2T | 8.0*2T | 9.7*2T | 12*2T | 12*2T |
Excavator Rock Grab Delivers Stable Performance For Heavy Material Handling
Well-built rock grab for excavator models bring many practical benefits to construction teams. These attachments use high-strength wear resistant steel on all contact areas to slow down abrasion from sharp stone surfaces. Robust hydraulic cylinders offer steady clamping force so materials do not drop even during bumpy movement. The open jaw design lets workers pick up items of different shapes and sizes without frequent adjustments. All main connection points use replaceable bushings, which cuts down future maintenance costs and shortens equipment downtime. Many operators like this tool because it is simple to install. After quick connection to the excavator hydraulic system, the machine can start working within a short time without complex technical setup.
How Does the Excavator Rock Grab Complete Gripping Operations?
The working logic of this excavator attachment relies on standard excavator hydraulic power. When the operator moves the control lever inside the cabin, hydraulic oil flows toward the driving cylinders of the grab. The oil pressure pushes the cylinder rods outward or pulls them inward, which controls the two sides of the grab jaw to open and close. The closed jaws create strong clamping friction to hold materials tightly. When the grab needs to release loads, the direction of hydraulic flow reverses, and the jaws slowly open to set down items at the target place. Every movement links closely with the excav
Wide-Range Job Site Uses of Hydraulic Rock Handling Attachments
This kind of hydraulic gripping attachment fits many different working environments across the whole construction industry.
Demolition teams use it to collect broken concrete and rock waste after building tear-down work.
Quarry workers depend on it to sort and move loose stone blocks around mining zones.
Land clearing projects apply the tool to shift large rocks, tree roots and debris to prepare ground for new building plans.
Waste recycling yards use the grab to separate heavy construction rubbish from other waste materials.
Road maintenance crews also use it to move stone materials during slope repair and road foundation construction.
Advantages When You Choose A Quality Rock Grab For Excavator
First, it lowers safety risks because workers no longer need to handle heavy sharp rocks by hand.
Second, it speeds up loading and moving work, so your team can finish more tasks within each working day.
Third, flexible matching options let us find a suitable unit for your existing excavator, no matter whether you own small or large diggers.
Good structural design also extends service life, helping you control long-term equipment investment.
More Matching Excavator Attachments Besides Rock Grab
Apart from rock grab for excavator, we supply a full series of compatible excavator hydraulic attachments to meet different construction demands. Our product list includes hydraulic breakers, sorting grabs, demolition shears, and screening buckets for many kinds of digging machines. Each attachment follows the same strict production standards as our rock grab series. If you want to know detailed information, feel free to send us your inquiry. Tell us your excavator model and main working projects, and our professional team will recommend the most suitable attachments to lift your job site productivity. We are ready to reply to your message quickly and support your next equipment purchase plan.
