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HSCRANE 7.5 Ton Double Girder Gantry Crane Installed in Mexico

2026-06-09

Project Background and Customer Pain Points

Monterrey is a major industrial hub in Mexico. The client operates a massive factory specializing in heavy steel structure processing and warehousing. Before introducing our gantry crane, they relied on large forklifts and old single girder cranes inside huge closed workshops.

With capacity expanding rapidly, traditional material handling bottlenecks became very obvious. Crowded equipment and narrow aisles caused frequent forklift collisions with semi-finished products. Low heights also prevented efficient high-level stacking. The original single girder cranes suffered from excessive spans. Moving 10-meter-long H-beams caused severe swinging due to operational inertia. The loads easily struck workshop columns or nearby equipment, creating constant safety hazards. The client urgently needed a very stable indoor heavy-duty handling solution to cover the entire workshop span.

HSCRANE 7.5 Ton Double Girder Gantry Crane Installed in Mexico

Why Choose a 7.5-Ton Double Girder Design?

Our technical team held multiple video conferences with the client after receiving the inquiry. Frankly, a single girder gantry crane would be more attractive in terms of cost for a 7.5-ton capacity. However, after evaluating actual workshop measurement data, we firmly recommended the 7.5-ton double girder structure.

There are two main reasons for this choice:

  • Overcoming large-span deflection:The client required an effective workshop span of 22 meters. At this span, the double girder structure provides unmatched rigidity and structural stability. This effectively prevents girder deflection caused by long-term, high-frequency operations.
  • Ensuring precision in compact spaces:The client handles extra-long, irregularly shaped heavy loads. Double girders paired with European low-headroom trolleys lower the overall center of gravity. Combined with our standard frequency conversion anti-sway system, load swinging drops to a minimum. This serves as a safety lifeline for operations among dense indoor workstations.7.5-Ton Double Girder Design

    Core Technical Specifications of the Gantry Crane

    • Lifting capacity:5 tons
    • Span:22 meters
    • Effective lifting height:9 meters
    • Working class:A5 (suitable for indoor heavy-duty, high-frequency operational environments)
    • Hoisting mechanism:European wire rope electric hoist (dual-speed hoisting)
    • Operation control:Full Schneider inverter control (stepless speed regulation)
    • Power supply requirements:440V, 60Hz, 3Phase (customized to meet Mexican industrial grid standards)
    • Protection rating:IP54 (sealed design for indoor metallic dust environments) with enhanced electrical cooling for hot workshops.
    Core Technical Specifications of the Gantry Crane

    Production, Shipping, and On-Site Installation

    After one and a half months of precise manufacturing and strict empty load testing, the crane was disassembled and packed into two 40HQ containers. It travelled by sea from Qingdao Port to Manzanillo Port, and then by land directly to the customer’s workshop.

    Cross-border installations usually suffer from poor communication and unexpected site conditions. To avoid this, we provided intuitive 3D installation drawings and English manuals. We also dispatched a senior installation engineer to Monterrey for on-site technical guidance.

    Installing large-span equipment indoors presents major challenges regarding ceiling height limits and avoiding existing floor machinery. Main girder splicing and lifting required careful coordination using two 50-ton truck cranes. Our engineer worked closely with local Mexican workers. We precisely calibrated track levels, completed high-strength leg-to-girder flange connections, and finished electrical bridging. The entire mechanical frame assembly took only 3 days.

    The next two days focused on electrical fine-tuning. Addressing the hot, poorly ventilated indoor summer climate, our engineer optimized inverter cooling parameters. We fine-tuned the anti-sway sensitivity and aligned crane wheel paths using lasers. This ensures zero wheel bite along the 22-meter span track, extending track and wheel lifespans significantly.

    Production, Shipping, and On-Site Installation

    Delivery and Customer Feedback

    During the final heavy-load test run, we hoisted a 7-ton bundle of I-beams across the workshop track. The double girder stability was perfectly verified here. Even at maximum traveling speed, the I-beams showed no noticeable swing. The braking process stayed smooth without jerking.

    The customer’s production supervisor, Diego, smiled while signing the acceptance form: “The equipment runs much quieter than we expected. The remote control feels extremely precise, just like playing a video game. It improved our indoor handling efficiency by at least 30%. The production line looks much more organized now.”

    Delivery and Customer Feedback

    Currently, this 7.5-ton double girder gantry crane has operated stably in Monterrey for several months. Through this cooperation, we eliminated indoor logistics blind spots for the client. We also established a solid indoor hoisting benchmark for our brand in the Latin American industrial crane market.

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