High-Performance General purpose overhead crane
General Purpose Overhead Crane is a versatile bridge - type lifting equipment. It integrates a bridge structure (composed of main and end girders), a trolley, operation mechanisms, and an electrical control system. Capable of handling diverse loads via attachments like hooks, grabs, or magnetic chucks, it covers lifting capacities from 3.2t to over 320t, spans 7.5 - 31.5m, and offers lifting heights of 6 - 30m. With precise variable - frequency speed regulation, multiple safety protections (overload limiters, stroke limiters, etc.), and a durable steel structure, it suits manufacturing, metallurgy, and warehousing. It supports high - frequency material handling, can be customized for explosion - proof, intelligent, or special - environment applications, ensuring efficient and safe material transfer in industrial production.
Specification
Applications
Industrial Handling: Heavy machinery lifting, equipment installation, component transportation.
Warehousing: Palletized goods handling, inventory stacking, storage retrieval.
Construction Material Handling: Steel beam hoisting, precast concrete lifting, building material transfer.
Port Operations: Container handling, cargo loading and unloading from ships.
Manufacturing: Assembly line material transfer, large part positioning, production equipment movement.
Power Plants: Turbine component installation, boiler part handling, coal - fired power plant material transportation.
Shipyards: Hull section lifting, ship machinery installation, vessel component assembly.
Recycling Facilities: Scrap metal handling, large waste item sorting, recycling material transportation.
metalworking Industry: Heavy metal billet and ingot handling, finished metal product movement, stamping press material feeding.
Railways: Locomotive and railway car component handling, track laying equipment movement, railway bridge construction material hoisting.


Key Configurations
Engine (if applicable): Electric motor drive system with variable frequency control for energy - efficient and precise speed regulation
Lifting Mechanism: High - strength wire ropes and durable hoist drums for reliable load lifting
Bridge Structure: Robust steel construction with optimized load - bearing capacity and stability
Trolley System: Smooth - running trolleys with adjustable travel speeds for horizontal movement
Control System: Advanced remote control or cabin - based control panel with load - weighing and anti - sway functions
Safety Features: Overload protection devices, emergency stop buttons, and limit switches for enhanced operation safety



Drawings & Dimensions
Our engineering team can provide tailored designs to meet specific project requirements.

Detailed Technical Specifications
Custom configurations available upon request for tailored solutions.
Item | QD Double-Girder Overhead Crane | LD Single-Girder Overhead Crane | Technical Notes / Application Suggestions |
Applicable Scenarios | Heavy industry, metallurgy, large assembly lines, energy equipment | Workshops, warehousing, auxiliary lifting, light-duty material handling | QD is suitable for frequent, heavy-duty, high-intensity usage |
Rated Lifting Capacity | 5t ~ 320t (customizable) | 1t ~ 20t (customizable) | QD supports a wider capacity range for large loads |
Span Range | 7.5m ~ 40m | 7.5m ~ 31.5m | Both support customization to match workshop layout |
Lifting Height | 6m ~ 30m (extendable) | 6m ~ 20m(extendable) | Customized based on lifting requirements |
Lifting Speed | 5~15 m/min (based on capacity and hoisting type) | 8/0.8 m/min or 7/0.7 m/min (dual-speed CD/MD hoists) | QD adopts rope drum hoists with customizable speed control |
Trolley Speed | 20~40 m/min (VFD optional) | 20 m/min (standard) | QD has independent trolley drive for smoother travel |
Crane Travel Speed | 40~100 m/min (often VFD-equipped) | 20~30 m/min | QD supports higher speed and large-span transfer efficiency |
Speed Control | VFD / fixed-speed options, soft start supported | Mostly fixed speed, some dual-speed or basic VFD | QD supports precise control; LD is more cost-effective |
Speed Adjustment | Multi-speed or stepless adjustment available | Usually single or dual speed (CD/MD) | QD ideal for precise positioning; LD for economical use |
Duty Classification (GB/T 3811) | A3 ~ A7 (A5 or above recommended for heavy-duty use) | A3 ~ A5 (suitable for light to medium frequency) | Higher duty means better durability and working cycles |
Main Girder Structure | Welded box-type double girder (high strength) | I-beam or welded box-type single girder | QD offers superior torsional and bending resistance |
Hoisting Mechanism | Trolley with rope drum hoist | Integrated CD/MD wire rope electric hoist | QD provides better stability and maintainability |
Drive System | Three-in-one geared motor with optional VFD | Standard motor drive, optional basic VFD | QD suits frequent starts/stops and long travel distances |
Control Methods | Pendant control / Wireless remote / Cabin operation | Pendant / Remote / Combined control | Flexible operation methods available |
Power Supply | AC 3-phase 380V 50Hz (customizable for export) | AC 3-phase 380V 50Hz (international standards supported) | Voltage and frequency customizable for export markets |
Installation Type | Dual-rail crane traveling system | Single-rail operation with flexible runway layout | QD requires higher rail precision |
Typical Applications | Foundries, wind tower plants, boiler manufacturing, heavy machining | Hardware plants, small equipment handling, packing lines, routine lifting | QD serves as primary lifting equipment, LD as auxiliary |
After Sales Service
Standard Warranty: Benefit from comprehensive 12-month coverage ensuring peace of mind.
Global Support: Access 24/7 technical assistance and reliable spare parts availability worldwide.
Comprehensive Training: Avail on-site or remote operation and maintenance training for optimal use.
Company Profile

Shandong Lingrui Lifting Group Co, Ltd.
Founded in 2015, Shandong Lingrui Lifting Group Co., Ltd. has rapidly ascended as a trailblazer in the lifting equipment industry, propelled by a commitment to innovation, excellence, and exceptional service. Our dedication to quality and integrity defines our mission as we leverage high-quality management and cutting-edge technology to deliver unparalleled products. Adhering to the principles of honesty, pragmatism, and quality assurance, we have significantly elevated our product standards and expanded our market reach across the nation. Our international trade has experienced remarkable growth, solidifying our strong presence in Europe, America, Southeast Asia, and Africa. Our products have earned the unwavering trust and support of clients worldwide. We warmly welcome both new and long-term partners to join us in achieving mutual growth, elevating your business success, and reaching new pinnacles together.


Why Choose Us?
Other Products
OEM/ODM Capabilities: We provide customized solutions tailored to your specific needs and branding requirements, ensuring a perfect fit for your business.
Competitive Pricing & Bulk Discounts: Revel in the unparalleled value we offer with our high-quality products, ensuring significant cost savings on large orders. Our competitive pricing strategy is designed to provide exceptional affordability without compromising on quality.
Fast Shipping & Customs Clearance Support: Discover the ultimate in logistics efficiency with our premier fast shipping services. We ensure your products reach you swiftly while expertly navigating the complexities of customs, providing a seamless and stress-free importation experience.
Turnkey Project Solutions: From the spark of an idea to the triumphant completion, our all-encompassing services guarantee a flawless project execution. Relish the convenience and assurance provided by our bespoke turnkey project solutions, meticulously crafted to cater to your distinct requirements.
Shandong Lingrui Lifting Group Co., Ltd excels in offering a diverse array of cutting-edge lifting and material handling solutions. Backed by years of industry experience and a commitment to innovation, we provide comprehensive equipment systems tailored to meet the evolving needs of global industrial sectors.
1.Our sophisticated product lineup includes state-of-the-art equipment such as column boom cranes, gantry cranes, jib cranes, hand-pushed gantry cranes, and general-purpose overhead cranes, engineered for optimal performance, safety, and reliability.
2.In the field of transport and automation, we deliver high-efficiency electric flat cars powered by durable battery systems, as well as hydraulic lifting magnets for excavators that enhance scrap handling efficiency in steel mills and recycling centers.
3.We are also at the forefront of modern logistics and smart handling with our pioneering air cushion transport vehicles, which enable non-contact movement of heavy loads with minimal floor impact—ideal for precision manufacturing environments.
4.Our range of vacuum lifting devices and advanced glass handling robots offer intelligent, ergonomic, and secure lifting solutions for fragile or smooth-surfaced materials, widely used in construction, glazing, and electronics industries.



FAQ
Q: What is the maximum lifting capacity of the overhead crane?
A: Standard models range from 1 ton to 200 tons, and can be customized upon request.
Q: What is the maximum span of the bridge crane?
A: The span usually ranges from 5 meters to 40 meters; larger spans can be customized.
Q: What working environments are suitable for overhead cranes?
A: Suitable for workshops, warehouses, assembly lines, and maintenance stations; can also be designed for outdoor use.
Q: What are the power supply options for an overhead crane?
A: Common options include conductor bars, cable reels, and festoon cable systems.
Q: Is remote or wireless control available?
A: Yes, the crane can be equipped with pendant or wireless remote control for convenient and safe operation.
Q: How do I choose the right overhead crane?
A: Please provide lifting capacity, span, lifting height, and working conditions so we can recommend the right solution.
LINKS : Dongqi Crane