Reliable 20 Ton Gantry Crane for Precast Yards | DQCRANES

Project Overview

DQCRANES designed and exported a 20 ton gantry crane for a precast concrete manufacturing yard in Texas, USA. The single girder crane was engineered to handle heavy precast elements (e.g., walls, beams, columns) outdoors, optimizing workflow efficiency and improving safety.

Client Requirements

The client, a prominent precast concrete manufacturer in Texas, USA, approached DQCRANES with a requirement for a robust and efficient outdoor gantry crane. The crane was intended to streamline the handling of heavy precast concrete components, which are integral to construction projects. The operational parameters demanded a crane with a 20 ton lifting capacity to ensure safety, reliability, and ease of operation in a demanding industrial environment.

gantry crane design

Understanding the critical role of precision and durability in precast yard operations, DQCRANES’ engineering team meticulously designed the single girder gantry crane to align with the client’s specific requirements. The design process incorporated advanced modeling techniques and simulations to ensure optimal performance under heavy-duty conditions.

Custom Gantry Crane from DQCRANES

Design Specifications

1. Capacity: 20 tons (SWL)
2. Span: 10 meters (33 ft)
3. Lifting Height: 5 meters (16.4 ft)
4. Power Supply: 460V/60Hz, 3-phase.
5. Control System: Pendent control, IP54-rated for dust/water resistance.

Design Features

Single Girder Structure

• The single girder gantry crane design is a hallmark of efficiency and simplicity. It minimizes the overall weight of the crane while maintaining structural integrity. This design reduces installation complexity and lowers maintenance requirements, resulting in cost-effective long-term operation.

High-Quality Materials

• The outdoor gantry crane for sale USA is constructed using premium-grade steel and other high-strength materials to ensure durability and resistance to wear and tear. The robust construction enhances the crane's ability to withstand harsh working environments typically in precast yards.

Advanced Hoisting Mechanism

• The hoisting mechanism is equipped with a reliable electric wire rope hoist that ensures smooth and precise lifting operations. The mechanism is designed for high efficiency, with features such as precise speed control to allow operators to adjust lifting speeds based on the specific requirements of each task.

Safety Features  

• Overload Protection System: Prevents the crane from lifting loads that exceed its rated capacity.  
• Emergency Stop Mechanism: Allows operators to halt operations instantly in case of an emergency.  
• Anti-Collision Sensors: Reduces the risk of collisions with other equipment or structures within the yard.  
• Limit Switches: Prevents excessive movement of the hoist or trolley, ensuring controlled operation.  

Mobility and Flexibility

• The 20 ton gantry crane for sale is equipped with durable wheels for easy movement across the yard. This mobility enhances operational flexibility, allowing the crane to be relocated as needed to accommodate changing worksite layouts or project requirements.

Weather-Resistant Design

• Given the outdoor nature of precast yards, the crane is designed to withstand varying weather conditions. Components are coated with anti-corrosion paints, while electrical systems are enclosed in weatherproof housings to ensure reliable performance even in challenging environments.

Signed Contract

The client’s engineering team reviewed the design and signed the contract in one week.
 

• Scope: Design, manufacturing, delivery, and installation support.
• Timeline: 12 weeks for manufacturing, 4 weeks for shipping.
• Payment Terms: 60% advance, 30% before shipment, 10% post-installation.
• Penalties: 0.5% per day for delays beyond the agreed timeline.
• Warranty: 12 months for parts and labor, with 24/7 technical support.

Manufacturing and Delivery

Manufacturing Process:

• Production at DQCRANES’ ISO-certified facility in China.
• Quality checks included NDT (non-destructive testing) of welds and load testing at 125% capacity.
• Components were pre-assembled for easier on-site installation.

Logistics:

• Disassembled crane parts shipped via sea freight to Houston Port.
• Local trucking arranged by the client to transport components to the precast yard.

Online Guide to Installation

• Step-by-Step Video Tutorials: Assembly of girders, installation of hoists, and electrical connections.
• Multilingual Manuals: Chinese/English PDF guides with 3D diagrams.
• Remote Support: Engineers conducted live Zoom sessions to troubleshoot alignment issues during installation.

Client’s Feedback 

1. Operational Efficiency: Crane reduced loading/unloading time by 40%.
2. Safety: No incidents during the first 500 lifts; overload protection system triggered twice, preventing accidents.
3. Durability: Performed well during heavy rains and high winds.
4. Minor Issues: Requested a longer pendant cable, which DQCRANES shipped promptly.

The client plans to place a repeat order for two additional cranes in 12 months, cementing DQCRANES’ reputation as a trusted partner in the North American heavy lifting market.

Applications in Precast Yards

Precast yards require heavy-duty lifting equipment capable of handling large and irregularly shaped concrete components efficiently. DQCRANES gantry cranes for sale is well-suited for tasks such as:
 

• Lifting and transporting precast beams, slabs, and panels.  
• Stacking precast elements for storage or curing.  
• Loading and unloading materials from transport vehicles.  
• Assisting in assembly operations for modular construction projects.

Its compact design, combined with high load capacity and mobility, makes it an indispensable tool for improving productivity and operational efficiency in precast yards.

Contact DQCRANES for Your Gantry Crane Needs

Ready to optimize your precast yard or industrial facility? Share your requirements (capacity, span, height) for a tailored design and competitive pricing within 24 hours.