The customer was first introduced to us at the Canton Fair, where they received our product catalog and discussed an upcoming container gantry crane bidding project. Shortly after returning from the exhibition, we provided a detailed quotation within the first week. The customer later informed us that they planned to visit the Moscow exhibition, where further discussions took place.
During the quotation review, the customer noticed that the initial pricing did not include the external cantilever extension, and we promptly updated the quotation accordingly. A few days later, the customer visited China and inspected our factory, meeting directly with our management team. The factory visit strengthened their confidence in our manufacturing capability, quality control system, and engineering support. As a result, the customer placed their first double girder overhead crane order with us and later decided to entrust their future tender projects to our company. To date, this customer has purchased two bridge cranes and two gantry cranes, establishing a stable long-term cooperation.
Project Overview
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Customer Source: Repeat customer
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Export Country: Russia
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Trade Term: EXW
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Delivery Time: 30 working days
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Shipping Method: Land transportation
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Payment Terms: T/T 30% advance payment
Double Girder Overhead Crane Specifications
The supplied equipment is a European-type double girder overhead crane, model QDXX, designed for medium-heavy duty industrial applications.
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Working Class: A5
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Rated Capacity: 10 tons
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Span: 7 meters
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Lifting Height: 10 meters
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Operation Mode: Remote control + pendant control
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Power Supply: 380V, 50Hz, 3-phase
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Quantity: 1 set
Customized Technical Requirements
All dimensions and parameters were manufactured strictly according to the tender documents provided by the customer. Key dimensional requirements include:
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Crane wheel base (C): 4.4 m
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Total crane length (B): 4.9 m
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Installation height (H1): 1.65 m
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Buffer height (h1): 500 mm
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Trolley wheel base (A): 2.0 m
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Distance from rail head center to end beam edge (k): approx. 210 mm
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Left/right hook limits (L1/L2): 1200 / 1070 mm
Additional technical requirements include:
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Wire rope reeving system: 6/2
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Runway rail: R43
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Control voltage: 36V
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Anti-corrosion painting system: as per attached specification
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Travel and lifting speeds: strictly controlled per tender requirements
Safety Devices and Electrical Components
The crane is equipped with comprehensive safety and electrical components, including:
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AC contactors (8 pcs)
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Air circuit breakers (8 pcs)
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Thermal overload relays (4 pcs)
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Travel limit switches for crane movement (2 pcs)
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Buffers (4 pcs)
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Audible alarm devices (2 pcs)
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Rope guides (6 pcs)
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Safety hook latches (16 pcs)
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Cable trolleys for trolley power supply (8 pcs)
Documentation and Certification
To meet Russian regulatory and project requirements, full documentation was provided, including material certificates, motor and gearbox manuals, bearing certificates, wire rope certificates, and complete technical drawings (general arrangement, electrical diagram, end beams, trolley, and wire rope reeving). Special attention was given to ensuring that the invoice model designation matches the EAC certificate exactly.
Conclusion
This project demonstrates our strong capability in delivering customized double girder overhead crane solutions for international bidding contractors. Through professional engineering support, transparent communication, and strict compliance with tender requirements, we successfully built a long-term partnership with a Russian customer who now relies on us as a trusted crane supplier for future projects.
Post time: Dec-16-2025
