Overview of ZOKECRANE Electro-Hydraulic Grab Buckets
Manufactured by Henan Zoke Crane Co., Ltd., ZOKECRANE electro-hydraulic grabs feature an integrated self-contained power package comprising an electric motor, hydraulic pump, high-pressure cylinders, and control valve block. Designed for seamless suspension on single-hook or double-hook overhead cranes, gantry cranes, and port cranes, our hydraulic grabs require no additional complex rope-reeving mechanisms on the crane. Available in Clamshell (two-rope/four-rope type equivalent) and Multi-Peel (Orange Peel) designs, they offer capacities from 0.5 m³ to over 30 m³.
Key Technical Specifications & Parameters
| Technical Parameter | Hydraulic Grab Bucket Specification |
|---|---|
| Equipment Type | Electro-Hydraulic Clamshell Grab / Multi-Peel (Orange Peel) Grab |
| Volumetric Capacity | 0.5 m³ to 30+ m³ (Custom engineered bucket volumes available) |
| Handling Material Density | 0.8 t/m³ to 3.0+ t/m³ (Light, medium, heavy, and ultra-heavy materials) |
| Grab Structure Material | High-strength wear-resistant alloy steel (HARDOX / NM400 / Q355B) |
| Hydraulic System Pressure | 16 MPa to 25 MPa (High closing force & fast response) |
| Power Source | Self-contained electric motor driving high-pressure hydraulic pump |
| Control Mode | Cable Reel Power Supply / Wireless Remote Control / Crane Cabin Control |
| Protection Rating | IP55 / IP65 Waterproof & Dustproof (Heat-resistant options for slag) |
| Certifications & Compliance | ISO 9001 Quality System, CE Certified, SGS Verified |
Core Product Advantages & Features
- High Digging & Gripping Force: Direct hydraulic cylinder actuation delivers superior closing forces compared to mechanical rope grabs, ensuring full bucket penetration even into compacted materials.
- Easy Crane Retrofit: Features an all-in-one electro-hydraulic system. It connects directly to the crane hook and electric cable power, requiring no specialized multi-drum hoisting machinery.
- Wear-Resistant Steel Construction: Grab tines and bucket cutting edges are forged from HARDOX high-wear-resistant steel plates, maximizing service life under high-abrasion conditions.
- Smooth Remote Control Operation: Allows partial or full opening in mid-air to regulate material discharge rates into hoppers, trucks, or conveyors with minimal dust dispersion.
Industrial Applications of Electro-Hydraulic Grabs
ZOKECRANE electro-hydraulic grab buckets deliver reliable bulk material handling across critical industrial sectors worldwide:
1. Sea Ports & River Terminals
Loads and unloads bulk cargo ships and barges carrying coal, iron ore, sand, gravel, grain, bauxite, and fertilizer.
2. Steel Mills & Metallurgical Plants
Handles pig iron scrap, heavy steel scrap, metallic slag, limestone, and iron ore concentrates in foundry bays.
3. Waste-to-Energy & Incineration Plants
Deploys multi-peel orange peel grabs for handling municipal solid waste (MSW), biomass, and recycling sorting yards.
4. Mining & Cement Facilities
Feeds crushers and hoppers with blasted rock, clinker, gypsum, clay, and raw mineral ores.
Frequently Asked Questions (Product FAQs)
What is the difference between a Clamshell Hydraulic Grab and an Orange Peel Grab?
A Clamshell Grab uses two enclosed bucket halves, making it ideal for fine granular materials like sand, coal, grain, and fertilizer. An Orange Peel (Multi-Peel) Grab features 5 to 8 independent pointed tines, perfect for penetrating and gripping irregular, bulky items such as scrap steel, rocks, logs, and solid waste.
Can an electro-hydraulic grab be used under water?
Yes. ZOKECRANE manufactures specialized underwater hydraulic grabs equipped with IP68 sealed hydraulic pump stations, waterproof motors, corrosion-resistant chrome cylinder rods, and marine anti-fouling coatings for dredging and underwater excavation.
How does the grab receive power from the crane?
The grab receives 380V/440V AC power from the overhead or gantry crane via a spring-driven or motorized cable reel installed on the crane trolley, providing continuous power throughout hoisting and lowering movements.
What wear protection is built into the grab buckets?
We use high-grade wear-resistant alloy steel plates (such as Hardox 400/500 or NM400) on all bucket cutting edges, tine tips, and interior shell liners, significantly reducing abrasion wear and downtime.
Export & Logistics FAQs for International Buyers
Which international markets does ZOKECRANE export hydraulic grabs to?
ZOKECRANE material handling equipment is exported worldwide, supplying terminal operators, steel mills, and power plants in Russia, Uzbekistan, the Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Brazil, Nigeria, and many other global markets.
How are hydraulic grabs packaged for international sea freight?
All hydraulic cylinders, valves, and motor pump units receive protective anti-corrosion oil coatings, moisture-proof plastic wrapping, and heavy-duty wooden box enclosures. Grab bucket bodies and structural frames are treated with anti-rust marine primers and secured in steel-reinforced export crates for safe containerized or breakbulk shipment.
What quality and safety certifications accompany ZOKECRANE hydraulic grabs?
Every ZOKECRANE hydraulic grab bucket is designed and tested under strict ISO 9001 Quality System requirements, holds European CE compliance certification, and comes with SGS quality inspection reports and hydraulic pressure test certificates.
What shipping terms and manufacturing lead times do you offer?
We provide standard international commercial terms including FOB, CIF, CFR, DDU, and DDP. Depending on bucket volume, tine design, and hydraulic motor power, standard manufacturing lead times range from 20 to 35 business days.
How does ZOKECRANE support technical installation and maintenance for overseas clients?
We supply detailed electrical control diagrams, hydraulic schematics, and comprehensive operation manuals. Our engineering team provides 24/7 remote video technical support, fast-track dispatch of hydraulic spare parts (seals, valves, hoses), and on-site commissioning assistance upon request.