European Electric Hoist Double Girder Crane
The LHhs European-style electric hoist double-girder crane features a modular design and is paired with the HDHs European-style trolley hoist, with a lifting capacity range of 5 to 80 tons and a maximum span of up to 60 meters. Built on advanced European technology, this model incorporates FEA optimization and precision hardened tooth flank gearing to achieve a 20–30% reduction in dead weight and a 15–25% reduction in wheel load compared to conventional double-girder bridge cranes, effectively lowering the load requirements on the crane runway girders. Kelude Heavy Industry has deployed over 200 units of this series in workshops and warehouses across more than 30 companies, including Zoomlion and Baowu Steel.
Structural Features of the LHhs European-Style Electric Hoist Double Girder Crane
Main Girder Structure: The crane utilizes an optimized box section or offset-rail box-girder design, fabricated from Q355B or Q420B high-strength steel plate. Variable cross-section optimization is performed through FEA, with the maximum section height at mid-span and gradual tapering toward the ends, ensuring strength and stiffness with minimal steel consumption. The camber of the main girder is controlled to 1/800–1/1200 of the span in accordance with GB/T 14405, and the mid-span deflection under full load does not exceed 1/800 of the span. P-type railway rail or square steel rail is laid on the top plate of the main girder to support the electric hoist travel. After welding, the main girder is blast-cleaned to Sa2.5 grade and coated with a three-layer protective system consisting of epoxy zinc-rich primer, epoxy MIO intermediate coat, and polyurethane topcoat, with a total dry film thickness of no less than 140 μm. End Carriage and Drive Unit: The end carriages feature a closed box structure made of Q235B. The driven end is equipped with an integrated drive unit (SEW-Eurodrive or equivalent gear motor with brake), while the non-driven end is fitted with idler wheel assemblies. The wheels are made of 45# forged steel and undergo dual heat treatment: overall quenching and tempering followed by medium-frequency induction hardening of the tread surface, achieving a tread hardness of HRC42–52 with a service life exceeding 5 years without replacement. Polyurethane buffers and buffer stops are installed at both ends of the end carriages to absorb impact energy at extreme positions. The end carriages are connected using high-strength bolts (grade 10.9), allowing for easy installation and disassembly. Electric Hoist Trolley: The crane is equipped with the HDHs European-style trolley hoist. The hoisting motor is a conical-rotor brake motor (Class F insulation, IP55 protection). The gearbox features hardened tooth flank ground gear pairs (Grade 6 accuracy, 20CrMnTi carburized and quenched). Long-life synthetic lubricating oil is filled at the factory, requiring no replacement for 5 years under normal use. The wire rope has a safety factor of ≥6:1, is neatly wound, and is equipped with rope retainers and anti-loosening devices. The hook is made of DG20 high-quality forged steel and is fitted with a hook latch.Configuration Options: Imported vs. Domestic
Kelude Heavy Industry offers both imported and domestic configuration options for the LHhs European-style electric hoist double-girder crane, catering to customers with varying budget and performance requirements:
| Configuration Item | Imported Configuration | Domestic Configuration |
|---|---|---|
| Hoisting Motor | Germany ABM/Sweden ABB | Jiangte/Huali Motor |
| Long Travel / Bridge Travel Motor | Taiwan Shengying/Germany SEW-Eurodrive | Guomao/Tailong |
| Gearbox / Reducer | Germany Flender/SEW-Eurodrive | Tailong/Guomao(hardened tooth flank) |
| Frequency Inverter / VFD | Danfoss/Siemens | Inovance/Delta Electronics |
| Electrical Components | Schneider/Siemens | CHINT/Delixi |
| Wire Rope | Germany DIPA/Kaeser | Guizhou Steel Rope/Juli |
| Price Difference | Base Price | Low 15~25% |
Technical Director's Note — Kelude Heavy Industry
"The biggest competitive edge of the LHhs European-style electric hoist double-girder crane lies in the flexibility of its modular design. With a lifting capacity range from 5t to 80t, combined with imported/domestic dual configuration options, customers can flexibly choose based on their actual working conditions and budget. In a real project, the 20t/22.5m solution we delivered to Zoomlion used imported SEW drives paired with domestic electrical components — a hybrid approach that kept core transmission reliability while cutting overall costs by roughly 18%. Compared to traditional QD type double-girder bridge cranes, this model achieves approximately 25% less dead weight thanks to its lightweight design, making it particularly well-suited for older factory buildings." — Mr. Zhang, Technical Department, Kelude Heavy Industry
LHhs European-Style Electric Hoist Double Girder Crane — Technical Parameters
European-style double-girder crane model: ELH; Work duty: A5/M5 (ISO 4301-1); Lifting capacity from 5t to 80t; Span customizable to factory building conditions (standard span 6–60m); Lifting height customizable (standard 6–30m); Lifting speed available in two-speed or frequency conversion options. Kelude Heavy Industry offers free site survey and solution design services.
| Lifting Capacity(T) | Span(LK)m | Lifting Height(H5)m | Lifting Speed(Standard Configuration)m/min | Complete Machine Power(kw) | Complete Machine Dead Weight(t) |
| 5T | 6M,10M,13M,16M,19M, 22.5M,25M,28M,31M; 6.5M,10.5M,13.5M,16.5M, 19.5M,22.5M,25.5M, 28.5M,31.5M; 7M,8M,9M,11M,12M, 14M,15M,17M,18M; 7.5M,8.5M,9.5M,11.5M, 12.5M,14.5M,15.5M, 17.5M,18.5M; 20M,21M,23M,24M, 26M,27M,29M,30M; 20.5M,21.5M,23.5M, 24.5M,26.5M,27.5M, 29.5M,30.5M; 5M,31M,32M,33M, 34M,35M,36M,37M, 38M,39M; 5.5M,31.5M,32.5M,33.5M, 34.5M,35.5M,36.5M,37.5M, 38.5M,39.5M; 40M,45M,50M,55M,60M; | 6M 9M 12M 18M 20M 30M | 0.8/5M/MIN | 8.1-10KW | 3.95τ-20.1t |
| 10T | 0.8/5M/MIN | 12.7-14.9KW | 6.3τ-21.3t | ||
| 16T | 0.6/4M/MIN | 20-22.9KW | 7.3τ-26.3t | ||
| 20T | 0.6/4M/MIN | 21.4-23KW | 7.9τ-28t | ||
| 25T | 1/4M/MIN | 27.4-29KW | |||
| 32T | 0.8/3M/MIN | 29-31KW | 10.7τ-33.3t | ||
| 40T | 0.7/4M/MIN | 47-52KW | 11.5τ-35.6t | ||
| 50T | 0.5/3.2M/MIN | 50-53KW | 13.4τ-43.1t | ||
| 63T | 0.0/2.4M/MIN | 55-59KW | 15.2τ-48.1t | ||
| 80T | 0.0/2.4M/MIN | 60-69KW | 18τ-51.2t |
Industries & Selection Guide
Machinery Manufacturing: The 5~20t LHhs is ideal for die/mold shops and machining workshops, handling raw material receiving and finished product offloading. We recommend the variable-frequency creep-speed configuration for smooth, precise positioning of delicate workpieces. Metallurgical Auxiliary Operations: The 20~50t LHhs can be equipped with a metallurgical-grade package featuring a high-temperature resistant motor, heat shields, and dual brakes, suited for the hot, dusty environments of foundries and ladle preparation areas. Warehousing & Logistics: The 10~32t LHhs, paired with a C-Hook or plate lifting spreader, is well-suited for loading/unloading in steel and coil warehouses. Optional wireless remote control and increased lifting height are available. New Energy Industry: The 5~16t LHhs can be customized for cleanroom environments (stainless steel electrical cabinet, low-emission coating) and has been successfully deployed for material handling in lithium battery production lines and PV module workshops. Kelude Heavy Industry provides full lifecycle support for the LHhs European-style electric hoist double-girder crane, from solution design and customization through manufacturing, installation, TSG inspection, and after-sales maintenance. We offer free on-site installation and commissioning nationwide, a 12-month warranty on the complete crane (18 months on core components), and after-sales service response within 24 hours.
Supplementary Technical Parameters
Work Duty: A3~A5 (higher classifications available upon request based on duty cycle) Ambient Temperature: Standard -20~+40°C; optional heat-resistant (≤80°C), low-temperature for cold regions (-40°C), and anti-corrosion versions for coastal/humid environments Power Supply: Standard AC 380V/50Hz; export projects can be adapted to target country standards including AC 220V/415V/460V/500V/660V Control Mode: Standard industrial wireless remote control (line-of-sight range ≥100m); optional floor handle pendant or air-conditioned operator cab. Supports multi-crane interlocking and remote monitoring integration. Crane Rail: P18/P24/P30/P38 hot-rolled steel rails recommended based on maximum wheel load; square steel or I-Beam rails also available. Complete rail clamps and buffers are supplied.
FAQ
Q: What is the difference between the LHhs European-style electric hoist double-girder crane and the QD type double-girder bridge crane?
A: The primary difference lies in the hoisting mechanism. The LHhs uses a European-style electric hoist trolley (with the hoisting mechanism integrated into the hoist itself), while the QD type uses a trolley hoist with a separate hoisting mechanism (drum + motor). This gives the LHhs a lower overall height (reducing required clearance by 15~30%) and a lighter dead weight (20~30% less), placing lower demands on workshop height and runway beam capacity. However, the QD type holds an advantage for very heavy lifting capacities (above 80t) and very high lifting heights. Each has its ideal applications; Kelude Heavy Industry can provide a comparative selection service for both options.
Q: What is the lead time for the European-style electric hoist double-girder crane?
A: For standard specifications (lifting capacity ≤32t, span ≤25.5m), the lead time is 20~25 working days. Special specifications (larger capacity/wider span/special configurations) typically require 30~45 working days, depending on the final technical solution. Kelude Heavy Industry maintains pre-production inventory for common specifications, allowing urgent orders to be fulfilled in as little as 12~15 working days. We recommend placing orders 1~2 months in advance to allow sufficient production and inspection time.
Q: How long does installation and commissioning take for the LHhs European-style electric hoist double-girder crane?
A: The LHhs is a semi-customized machine, so the installation and commissioning period depends on site conditions. Typically: 1~2 days for positioning and erecting the main girder and end carriages, 1 day for electric hoist installation and wiring, 1 day for electrical system commissioning, 0.5 days for no-load and load testing, and 0.5 days for TSG inspection – totaling approximately 4~5 working days. Kelude Heavy Industry provides installation planning and on-site guidance. Domestic projects include free on-site installation and commissioning; for export projects, we can dispatch a technical team for overseas on-site guidance.
Q: Does this crane model require special equipment registration?
A: According to the Special Equipment Safety Law and TSG Q7016, bridge cranes with a lifting capacity of ≥3t are classified as special equipment and must be registered and subject to periodic inspection. Kelude Heavy Industry provides the Factory Acceptance Test Report, Certificate of Conformity, and Type Test Report with the product to assist customers in completing TSG installation supervision inspection and registration. Light lifting equipment with a capacity of <3t falls outside the scope of special equipment regulation and does not require registration.
