Key Features
High-Strength Structural Design:
Constructed with Q355B high-grade steel and reinforced wear-resistant plates at key stress points, the grab resists deformation and abrasion even under continuous heavy-load operations.
Precise Hydraulic Control System:
Equipped with a double-acting hydraulic cylinder and pressure relief valve, it ensures smooth opening/closing movements and prevents overload damage, with a responsive operation speed that cuts cycle time by 15%.
Versatile 5-Finger Configuration:
The 5 independent, curved fingers adapt to irregular material shapes, providing a firm grip without slipping; the adjustable clamping force suits both light and heavy materials.
Easy Installation & Maintenance:
Designed with a universal mounting bracket, it matches most excavator brands (Caterpillar, Komatsu, Volvo, etc.) with minimal modifications; sealed hydraulic components reduce maintenance frequency and extend service life.
Technical Parameters
|
Parameter |
Specification |
|
Applicable Excavator Weight |
5–30 tons |
|
Material |
Q355B steel + wear-resistant alloy plates |
|
Hydraulic Pressure Range |
16–25 MPa |
|
Opening Width |
1,200–2,800 mm |
|
Clamping Force |
80–350 kN |
|
Finger Quantity |
5 (independent hydraulic drive) |
|
Total Weight |
350–1,800 kg (based on model) |
|
Working Temperature |
-20°C to 60°C |
Craftsmanship & Technology
CNC Precision Machining:
All key components, including the hydraulic cylinder mounting seats and finger joints, are processed via CNC machining to ensure tight tolerances and smooth assembly, eliminating gaps that cause operational noise or wear.
Robot Welding Technology:
Automatic robot welding is applied to critical structural seams, delivering uniform weld strength and preventing crack formation under heavy loads; post-welding heat treatment reduces internal stress and enhances structural stability.
Anti-Corrosion Coating Process:
The grab undergoes a 3-step surface treatment: shot blasting derusting, epoxy primer coating, and polyurethane topcoat, providing 1,000-hour salt spray resistance and long-term protection against harsh outdoor environments.
Intelligent Hydraulic Matching:
The hydraulic system is calibrated to match excavator hydraulic flow rates, avoiding energy waste and ensuring optimal performance without modifying the excavator's original hydraulic circuit.
FAQ
Q: Can this grab fit my non-standard excavator model?
A: Yes. Our engineering team can design a customized mounting bracket according to your excavator's attachment interface parameters, ensuring a perfect fit without performance compromise.
Q: What maintenance work is required for daily use?
A: Daily maintenance includes checking hydraulic oil levels and pipeline connections for leaks, lubricating finger joints every 8 working hours, and cleaning surface debris to prevent coating damage.
Q: Is the grab suitable for handling hazardous materials like sharp steel scrap?
A: Absolutely. The wear-resistant steel fingers and reinforced tip design are specifically engineered to handle sharp, heavy materials, with a safety factor of 2.5 to prevent finger breakage.
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