Excavator log grab is designed for gripping elongated, irregular bulk materials, including timber, rock blocks, and scrap metal. Conventional digging buckets fail to wrap around logs or jagged stone; manual stacking consumes massive labor and brings safety risks at lumber yards and scrap plants.
YG Machinery launches a full series covering 1.5–50-ton diggers, split into light, medium, heavy, and super-heavy-duty grades with an optional 360° rotary structure.
Unified Complete Technical Parameter Table For Excavator Hydraulic Grapple
| Model | Unit | 02 | 04 | 06 | 08 | 10 | 14 | 20 |
| Weight | Kg | 360 | 440 | 900 | 1680 | 2130 | 2600 | 2800 |
| Max jaw opening | M/m | 1200 | 1400 | 1600 | 2100 | 2500 | 2800 | 2800 |
| Oil pressure | Kg/crrt2 | 160 | 160 | 180 | 180 | 180 | 180 | 200 |
| Set-up pressure | Kg/cm1 | 170 | 180 | 190 | 200 | 210 | 250 | 250 |
| Operating flux | L/min | 30-55 | 50-100 | 90-110 | 100-140 | 130-170 | 80-120 | 80-120 |
| Cylinder Volume | Ton | 4.0×2 | 4.5×2 | 8.0×2 | 9.7×2 | 12×2 | 12×2 | 14×2 |
| Suitable excavator | Ton | 4-6 | 7-11 | 12-16 | 17-23 | 24-30 | 31-40 | 41-50 |
The grab frame adopts NM400 wear-resistant manganese steel with full-penetration welding and a built-in hydraulic check valve for anti-drop protection.
Complete Working Principle Of Excavator Log Grab
This grapple uses the excavator’s auxiliary hydraulics to drive twin clamping cylinders. Rotary versions of rock grapples for excavators feature a separate motor for unlimited 360° bidirectional rotation with cab speed control.
An internal pressure valve secures jaws against hydraulic drops to stop cargo falling. Landfill and port operators handling scrap & timber pick this, cutting handling labor efficiency by over 75%.
7 Core Functional Advantages Of Rock Grabs For Excavators
- Full 360° Free Rotation: No dead-angle positioning; operators adjust cargo angle without moving the whole excavator.
- Heavy Wear-Resistant Build: NM400 manganese steel jaws with replaceable NBLF wear teeth, long service life over 3000 working hours.
- Dual Hydraulic Safety Lock: Embedded check valve prevents sudden jaw opening under heavy lifting loads.
- Custom grades: light/medium/heavy, plus dustproof & reinforced jaws for tough sites. Rental fleets use the excavator log grab to handle lumber, scrap, and demolition, boosting digger utilization and saving extra attachment expenses.
- Wide Jaw Opening Range: Covers small firewood to large logs & bulk rock blocks across all tonnage models.
- Stable High Clamping Force: Double large-bore cylinders deliver consistent grip for dense, heavy irregular materials.
- Universal Quick Hitch Mount: Customizable connecting lugs fit all mainstream excavator brands without major hydraulic refit.
Global Full-Scene Application Fields Of Excavator Log Grab
- Forestry & Timber Yards: Loading, sorting, and stacking raw logs, bamboo, sugarcane, and brushwood.
- Scrap Metal Recycling: Collect mixed steel scrap, vehicle frames, and metal fragments.
- Building Demolition: Sort concrete rubble, bricks, and structural waste on job sites.
- Municipal Waste Handling: Move household & industrial slag. Cross-region lumber & recycling fleets adopt an excavator hydraulic grapple to standardize bulk material grabbing worldwide.
- Quarry & Stone Works: Grab, stack rough rock blocks and crushed stone aggregates.
- Agricultural Plantations: Clear farm waste, transport crop stalks and large timber.
- Port & Border Terminals: Unload timber and bulk irregular cargo from trucks & barges.
- Landscaping & Storm Cleanup: Remove fallen trees, stumps, and post-disaster debris.
Step-By-Step Model Matching Guide For Excavator Hydraulic Grapple
- Excavator Tonnage Matching: 1.5–3-ton mini machines select YG-Mini series; 41–50-ton heavy carriers pick Log Grab 20 model.
- Long-Term Operation Frequency: Heavy daily work needs reinforced jaws; seasonal jobs use standard units. Forestry & demolition crews select rock grabs for excavators to handle timber, rock, and scrap efficiently.
- Material Type Judgement: Light timber & brush choose light-duty; hard rock & heavy scrap adopt super-heavy reinforced jaw version.
- Site Space Rules: Compact residential yards use non-rotating compact grabs; open lumber yards select full 360° rotary type.
Frequently Asked Questions About Rock Grabs For Excavators
A1: Standard mounting brackets match most diggers; customized connecting lugs are available for non-standard machine models.
A2: It suits logs, bamboo, rock, scrap steel, construction waste, and crop stalks; not applicable for fine powdery bulk goods.
A3: Log grabs have wider jaws, twin heavy cylinders, and optional full rotation for long timber. Buyers may contact overseas sales for custom jaw sizes & factory prices of excavator log grabs.
A4: Rotary units only need an auxiliary hydraulic circuit connection; no large-scale host refitting required.
A5: Clean rock debris after each shift, lubricate hinge pins daily, and avoid long-term overload clamping.
Factory Supply & Global After-Sales Support Of Excavator Log Grab
YG Machinery integrates independent R&D, mass production, and global export of a full excavator attachment lineup. Besides log grabs, we supply drum cutters, hydraulic shears, quick couplers, and orange peel grapples for one-stop contractor purchasing.
If you need overseas yard operation case videos or customized handling budget quotations, submit your excavator tonnage and primary grabbing materials to our sales team. You can order an excavator hydraulic grapple with factory-direct pricing and a full 12-month complete machine warranty.
