Engineered for precision and durability, the KSQ Series Double Girder Overhead Crane is manufactured in full compliance with the latest national standards, incorporating key international design benchmarks such as FEM, DIN, and IEC. This model meets rigorous GB specifications and holds ISO and CE certifications, ensuring global reliability and performance. It delivers smooth and accurate lifting and travel motions, making it ideal for demanding industrial applications.

Key Structural & Performance Advantages
Compared to conventional QD-type cranes, the KSQ model reduces overall weight by 15–30% and minimizes maximum wheel pressure by 10–35%. This design significantly lowers the structural demands on your building, helping to cut construction and operational expenses. At the core of its drive system are high-precision, hard-tooth-surface reducers, forged wheels, and a variable-frequency speed control mechanism. These components work together to provide superior control and longevity, establishing the KSQ as the modern replacement for traditional overhead cranes.

How It Works & Operational Features
The crane is built with a twin-girder framework, end trucks for bridge movement, and a top-running trolley equipped with independent lifting and traversing mechanisms. Each motion—hoisting and traveling—is powered by separate motors, reducers, and brakes. This modular design allows the KSQ to handle workloads ranging from A3 to A8 (ISO standard) with enhanced lifting and travel speeds. Operators can precisely adjust speed across 10 levels, enabling both high-efficiency transport and delicate, slow-speed placement of loads.

Safety & Protection Systems

• Automatic overload protection restricts hoisting if excess load is detected

• Dual-stage limit switches or infrared anti-collision sensors for safe travel limits

• Fall-prevention mechanism on trolley and bridge Three-in-One motor assemblies

• Emergency stop control via the main operator station

• Durable polyurethane buffers to absorb impact at travel end points

• Safety hook latches to secure loads during lifting

• Audio-visual warning devices to alert personnel in the work area

• Weather protection covers for outdoor motor and electrical panels

• Integrated earth conductor, low voltage protection, and current overload protection

Design & Inspection Standards
Our cranes are produced under strict quality control according to:

• GB/T 10183-2005 (Manufacturing and rail tolerances)

• GB/T 5905-1986 (Crane testing specifications)

• JB/T 4315-1997 (Electric control equipment)

• GB 8918-2006 (Wire rope for critical applications)

• GB/T 700-2006 & GB/T 1591-2008 (Structural steel standards)

• JB 928-1994 & GB 11345-1989 (Weld inspection methods)

To receive a customized solution, kindly provide:

• Lifting capacity

• Crane span (measured from rail center)

• Lifting height (from floor to lowest hook point)

• Power supply details (e.g., 380V/50Hz/3-phase AC)

• Working environment: material type handled, ambient temperature, and other conditions