Electro-Hydraulic Grab
Independent electro-hydraulic clamshell grabs with integrated motor for maximum independence and efficiency
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Why Choose the Electro-Hydraulic Grab?
Self-contained power for maximum independence on crane ships, RoRo vessels, and mobile cranes
Integrated Motor
Self-contained hydraulic system with integrated electric motor (7.5-37 kW) and IP65 protection for maritime use.
Remote Control
Wireless remote operation up to 100 meters for safe and convenient grab control from the crane cabin or deck.
Maritime Design
Specifically designed for crane ships and RoRo vessels with corrosion-resistant materials and saltwater-rated components.
Energy Efficient
Variable frequency drive control optimizes energy consumption and reduces operational costs during intensive use.
Simple Maintenance
Modular design with accessible components and protected electrical systems minimizes downtime and service costs.
Fast Cycle Time
Powerful integrated hydraulic system enables fast opening and closing cycles for maximum productivity.
Product Description
The Electro-Hydraulic Grab is a self-propelled, self-closing clamshell grab with an integrated electrically driven hydraulic power pack. This design provides complete independence from the crane's hydraulic system, requiring no external hydraulic connections. The grab is controlled via wireless remote control, making it ideal for crane vessels, RoRo ships, and port facilities.
Construction: The grab frame is constructed from high-strength S460 or S500 steel, while the shells are made from wear-resistant Hardox 400 or Hardox 500 steel. The design has been validated through FEA analysis according to European standards for maximum reliability.
Electric Motor: The integrated electric motor operates on 230V or 400V AC power at 50/60 Hz with power ratings from 7.5 to 37 kW depending on grab size. The motor is rated IP65 for protection against dust and water jets, making it suitable for maritime environments.
Hydraulic System: The compact, integrated hydraulic power pack is designed for continuous use in maritime applications. All hydraulic components are contained within a protected housing, minimizing exposure to the elements and reducing maintenance requirements.
Capacity & Weight: Available in capacities from 0.5 to 30 cubic meters with machine weights ranging from 8 to 80 tons. Each grab is custom-designed for the specific material, crane capacity, and application.
Applications
Electro-hydraulic grabs are ideal for maritime applications where crane hydraulic connections are impractical
Crane Ships
Perfect for loading and unloading without requiring the ship's own hydraulic system.
RoRo Vessels
Ideal for use with mobile harbor cranes on roll-on/roll-off ships.
Port Terminals
Efficient handling of coal, grain, ores, and other bulk materials in port facilities.
Offshore Platforms
Supply operations on offshore platforms with saltwater-resistant construction.
Inland Waterways
Loading and unloading inland ships at ports and terminals without hydraulic connections.
Mobile Cranes
Portal cranes and harbor cranes without requiring hydraulic connection to the crane.
FEA Structural Analysis
Every electro-hydraulic grab is validated through Finite Element Analysis (FEA) to ensure maximum safety and performance in your specific application.
FEA Analysis Video
Safety Factor 2.0 Minimum
Double the working load limit for exceptional safety margins according to EN 13001.
Full FEA Documentation
Receive detailed FEA report with stress distributions, deformation analysis and safety calculations.
Von Mises Stress Analysis
Complete stress analysis showing maximum stress points and material utilization throughout the structure.
Multiple Load Case Validation
Analysis includes lifting, closing under load, tilting and impact scenarios for comprehensive validation.
Models & Custom Options
Every project is unique. That's why we offer extensive customization options.
Electrical Systems
- 400V or 230V AC motor
- Power: 7.5-37 kW
- Variable frequency drive (VFD)
- IP65 protection rating
Control Systems
- Wireless remote control (100m range)
- Cable backup control available
- Real-time grab position feedback
- Emergency stop functionality
Configuration Options
- Hardox 400 or Hardox 500 shells
- S460 or S500 frame construction
- Corrosion-resistant coating
- Seawater-resistant version
- CE certification included
Custom Specifications
- Capacity: 0.5 to 30 m³
- Custom lifting brackets
- Extreme temperature versions
- Offshore platform versions
- Complete documentation package
Frequently Asked Questions
What is an electro-hydraulic grab?
An electro-hydraulic grab is a self-contained clamshell grab with an integrated electric motor and hydraulic power pack. It operates via wireless remote control and requires no hydraulic connection to the crane, making it ideal for crane ships, RoRo vessels, and mobile cranes.
What are the ideal applications for an electro-hydraulic grab?
Electro-hydraulic grabs are perfect for crane ships, RoRo vessels, offshore platforms, port terminals, and mobile harbor cranes where establishing hydraulic connections is impractical. They excel in maritime environments handling bulk materials like coal, grain, ores, and general cargo.
What voltages are available for the electric motor?
Standard options are 230V or 400V AC at 50/60 Hz with power ratings from 7.5 to 37 kW depending on grab capacity. The motor is IP65 rated for protection against dust and water jets. Special voltages can be provided for specific applications or regions.
What are the advantages of an electro-hydraulic grab over a regular hydraulic grab?
Electro-hydraulic grabs provide complete independence from the crane's hydraulic system, eliminating the need for hydraulic hoses and connections. This makes installation easier, reduces maintenance of hydraulic lines, and provides maximum flexibility for crane ships and mobile cranes without onboard hydraulics.
What maintenance is required for an electro-hydraulic grab?
Maintenance is minimal thanks to the protected hydraulic system and IP65-rated electrical components. Regular inspection of hydraulic fluid levels, electrical connections, and structural components is recommended. The modular design ensures easy access to all serviceable parts, reducing downtime.
Ready to Start Your Project?
Our electro-hydraulic grab specialists are happy to help you select the right independent grab for your crane ship, RoRo vessel, or mobile crane. Request a non-binding quote today.
Quote Request
Easily request a non-binding quote via our website
Consultation
The quote is discussed with you to find the best solution
Quote Delivery
You receive a detailed quote tailored to your needs
Order
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Order Tracking Portal
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Production & Transport
The grab is produced and shipped to you
Aftersales Support
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Why Companies Choose Grippera
CE Certified
Compliant with all European safety standards
Expert Support
Technical support within 24 hours
Europe
Fast delivery throughout Europe
25+ Years Experience
Specialist in Mechanical Grabs