Single Girder Grab Crane for Waste-to-Energy Plants

Product Overview

The electric hoist grab crane is a compact, cost-effective overhead lifting solution specially engineered for waste-to-energy (WTE) plants and municipal solid waste (MSW) treatment facilities.

It is equipped with a mechanical or hydraulic grab bucket for lifting, transferring, and mixing loose materials such as household waste, biomass, and bottom ash. Compared with double girder types, the electric hoist single girder grab crane provides lower structural cost, easier installation, and reliable performance — ideal for small to medium-sized incineration bunkers and waste handling stations.

Whether you need to feed waste to a furnace, load refuse into hoppers, or handle ash residues, this crane ensures continuous and safe operation with high working efficiency and minimal maintenance.

Key Features & Advantages

Compact & Economical Structure

• The single girder design minimizes building height and structural cost while maintaining stable lifting performance. It’s ideal for retrofitting older WTE facilities or projects with limited space.

Durable & Efficient Grab System

• Available with orange-peel, clamshell, or hydraulic grabs, suitable for different materials. The grab buckets are made from wear-resistant steel and ensure efficient waste filling and discharge.

Intelligent Automatic Control

• With PLC and HMI control, the grab crane can perform automatic feeding, bunker leveling, and waste mixing operations. The optional anti-sway control system ensures precise grab positioning.

Reliable for Harsh Environments

All major components are designed for high-humidity and corrosive atmospheres in waste bunkers.
 

• IP65 electrical enclosures
• Anti-corrosion painting
• Stainless-steel fittings

Safety & Compliance

Manufactured under CE, ISO standards, equipped with:
 

• Overload protection
• Emergency stop systems
• Limit switches & buffer stops
• Laser anti-collision sensors
• Load monitoring and alarm systems

Energy Efficiency & Smooth Operation

• All motion mechanisms can be equipped with Variable Frequency Drives (VFDs) to achieve smooth acceleration, precise control, and reduced power consumption.

Integration & Automation for WTE Systems

Modern WTE plants require continuous, automated operation. Yuantai grab cranes can be fully integrated into your plant’s existing system for:
 

• Automatic bunker feeding and level control
• 24/7 unmanned operation mode
• Remote monitoring and data logging
• Coordination with furnace feeding schedules

Our engineering team provides layout design and a communication interface to ensure seamless system integration and operational stability.

Technical Specifications

Item	Specification
Lifting Capacity	2-20 tons
Span	8-28 meters
Lifting Height	6-25 meters
Lifting Speed	5-40 m/min (VFD adjustable)
Crab / Trolley Speed	20-40 m/min
Bridge Traveling Speed	30-60 m/min
Working Duty	A4-A6
Control Mode	Pendant, Remote, or PLC Automatic Control
Grab Type	Orange-peel, Clamshell, or Hydraulic
Power Supply	380V–415V, 50/60Hz, 3 Phase (customized available)
Protection Grade	IP54–IP65
Ambient Temperature	–10°C to +60°C

Waste-to-Energy Crane Applications

• Waste-to-Energy Plants (WTE): Feeding MSW and RDF into incinerators.
• Biomass Power Stations: Handling biomass materials like wood chips or agricultural waste.
• Recycling Plants: Loading, mixing, and transferring solid waste.
• Ash Handling Systems: Removing and stacking bottom ash and slag.
• Municipal Waste Bunkers: Mixing waste to ensure uniform combustion.

Maintenance & Remote Support

Yuantai grab cranes are built for 24-hour operation with minimal downtime.
 

• Modular structure for easy part replacement
• IoT-based monitoring for performance tracking
• Remote diagnostics and predictive maintenance alerts
• Spare parts available for the full equipment lifecycle

Our technical team can provide remote commissioning guidance and online troubleshooting to ensure stable operation from day one.

Case Example: 6.3 Ton Single Girder Grab Cranes in Southeast Asia

In 2024, Yuantai supplied two sets of 6.3-ton and 7.5-ton single girder grab cranes for a municipal waste-to-energy plant in Southeast Asia. The cranes are used for bunker feeding and waste mixing, operating in semi-automatic mode with PLC control and remote monitoring.

Result: Stable 24/7 feeding operation, 20% reduction in labor, and zero unplanned downtime in the first year.

Why Choose a Single Girder Grab Crane for WTE?

• Lower investment and maintenance costs than double girder types.
• Compact layout—ideal for retrofit projects or limited-height facilities.
• Sufficient lifting capacity (up to 20 tons) for most WTE material handling needs.
• Easy installation and commissioning—reduced downtime.
• Optional automation and smart control systems for 24/7 operation.

Grab Types Available

Grab Type	Material Handling	Features
Orange-Peel Grab	Municipal solid waste, loose materials	High filling rate, suitable for MSW bunkers
Clamshell Grab	Biomass, sand, ash, sludge	Compact design, precise control
Hydraulic Grab	High-density materials	Smooth operation, adjustable opening force

Optional Configurations

• Dual-crane operation (working + standby) for uninterrupted waste feeding
• Weighing system integrated into grab or trolley
• Explosion-proof or corrosion-resistant design for harsh environments
• Remote operation cabin or control room integration

Why Choose Yuantai for Your WTE Project

• Over 25 years of crane manufacturing experience
• Customized designs based on bunker layout & process flow
• Proven performance in waste treatment plants worldwide
• Fast delivery, remote installation guidance, and lifetime technical support

FAQ

Q1: What is the main difference between single girder and double girder grab cranes?

A: Single girder grab cranes are lighter, more economical, and suitable for lifting capacities to 20 tons. Double girder models are used for higher capacities or where long spans and frequent duty cycles are required.

Q2: Can the grab crane be automated?

A: Yes. Yuantai offers semi-automatic and fully automatic control systems with PLC and anti-sway technology for bunker feeding and level control.

Q3: What type of grab is suitable for municipal solid waste?

A: The orange-peel grab is the most common choice for MSW because it handles irregular materials efficiently.

Q4: What are the maintenance requirements?

A: Routine inspection of wire ropes, grab mechanisms, lubrication, and electrical systems ensures long-term reliability.

Request a Free Quote!

Yuantai Crane provides customized waste handling grab cranes tailored to your plant layout, pit size, and process requirements. Send us your bunker drawings, lifting height, and material characteristics, and we’ll design the most efficient crane system for your WTE facility.

Contact us today to get a layout drawing and quotation within 24 hours.