LHX European Standard Electric Hoist Double Girder Crane 50t-300t
Product Snapshot
Kelude Heavy Industry's LHX series European Standard electric hoist double-girder crane has completed its full 2026 model-year upgrade, with capacity coverage from 50t to 300t across eight ratings, suited to workshop spans of 18–36 m and duty classifications A4 to A7. Every model comes standard with a hardened gear reducer (transmission efficiency ≥96%), full variable-frequency drive with vector speed control, and electronic anti-sway control, backed by CE and DIN dual certification. The series has been exported in volume to Southeast Asia, the Middle East, and Central Asia. Compared with same-capacity QD Type double-girder cranes built to Chinese national standards, the LHX series is 20–25% lighter in dead weight, delivering total cost of ownership savings of $66,000–$96,000 over a 15-year full life cycle.
Beyond Capacity Expansion: What's New in the LHX Series
The core of this upgrade extends the LHX series from its previous 50t–150t sweet spot up to 300t, while also adding two lighter ratings at 32t and 40t at the lower end. The result is a nine-step capacity ladder: 50t/63t/80t/100t/125t/160t/200t/250t/300t. But capacity expansion is only the surface—the real engineering upgrades run three levels deep:
① Topology-optimized main girder. FEA optimization was carried out to FEM 1.001 load combination B6. For cranes above 200t, the main girder uses a variable-section box design (deepest at mid-span, tapering toward both ends), cutting structural weight by 8–12% versus a constant-section girder. Taking the 200t-28m model as an example, the main girder dead weight drops from roughly 65t to about 57t—that 12% reduction translates directly into lower wheel loads (approximately -30 kN per wheel), easing the load requirements on the factory building's corbels and runway beams.
② Hoisting mechanism gearbox upgrade. Across the series, the hoist gearbox has been upgraded from the SEW M3 series to the M3+ reinforced series, boosting gear contact fatigue strength by about 15% and extending design life from 10,000 to 12,000 hours. The package includes synthetic gear oil (viscosity index >150) plus an externally mounted forced-air radiator, enabling continuous high-frequency hoisting under A6 to A7 heavy-duty conditions.
③ Electronic anti-sway control as standard. Previously offered as an option on medium and large cranes (at an additional $4,500–$7,400 per unit), anti-sway control is now standard on all models above 100t. The adaptive input-shaping algorithm, based on a pendulum-length model, holds residual sway of the load to within ±5 mm during simultaneous crane bridge and trolley motion—a must-have for precision assembly workshops (die positioning, engine stand docking).
LHX vs. QD Type: Where the Extra Cost Goes, Where the Savings Come From
| Comparison Item | National Standard QD Type 50t | European Standard (EN) LHX Type 50t |
|---|---|---|
| Design Standard | ISO 4301 Crane Design Standard-2008 | FEM (Fédération Européenne de la Manutention) 1.001 / DIN 15018 |
| Complete Machine Dead Weight | 48~52t | 37~40t(Light20~25%) |
| Reducer / Gearbox | soft tooth flank(HB280~350)Service Life3~5Years | hardened tooth flank(HRC58~62)Service Life10Years+ |
| Speed control Method | wound-rotor motor+Series Resistance | full VFD vector control |
| Annual Power Consumption(4000h) | ≈8.010kk Wh | ≈6.510kk Wh(-19%) |
| anti-sway control | None(Or Machinery Guide Rod) | Electronicanti-sway control ±5mm |
| Export Certification | Only GB | CE + DIN Double Certification |
| Reference Price(50t/28m/A5) | 45~5510k | 55~6510k |
At first glance, the LHX appears to cost $66,600–$133,200 more than the QD model. However, the hardened gear reducer eliminates the need for major overhauls for 10 years (saving $17,800–$32,600 in maintenance), reduces annual electricity costs by $1,780–$2,970 (totaling $26,700–$44,500 over 15 years), and cuts dead weight by 12 t, saving $22,300–$37,100 on factory steel structure. Combined, these three factors deliver a total cost of ownership (TCO) savings of $66,800–$114,300 over 15 years, with a payback period of just 2–3 years.
Typical Applications by Capacity Class
50 t–80 t Class — General manufacturing (automotive parts, precision machining, warehousing and logistics). Rated for Work Duty A4–A5, with full VFD speed control and electronic anti-sway delivering ±5 mm positioning accuracy for mold handling and precision assembly.
100 t–160 t Class — Heavy industry (ship section final assembly, wind power tower ring seam tack-up, transformer assembly). Rated for Work Duty A5–A6, with dual-crane synchronization control for balanced lifting of large, irregular components.
200 t–300 t Class — Extreme-duty applications (hydropower station unit maintenance, large-scale casting, nuclear power auxiliary lifting). Rated for Work Duty A6–A7, featuring variable-section main girders and dual-redundancy braking to meet stringent safety requirements.
FAQ: LHX vs. QD and Common Concerns
Q: What's the difference between the LHX and QDX models? When should I choose the LHX?
A: The LHX uses an electric hoist as the hoisting mechanism (compact design, lighter dead weight), while the QDX uses a winch (better suited for very high lifting heights and frequent heavy loads). For conventional applications under 50 t, the LHX offers the best value. Above 100 t or when lifting height exceeds 20 m, we recommend the QDX.
Q: What practical benefits does CE + DIN certification offer domestic buyers?
A: CE certification isn't mandatory for purely domestic sales, but the certification process itself means the crane has passed more stringent Type Tests (1.25× dynamic load + 1.5× static load), ensuring a higher quality baseline. For factories with export plans, having it done upfront eliminates future certification costs.
Q: We're replacing an old crane in our existing workshop — will the rail foundation need modification?
A: Good news — the LHX is 20–25% lighter than a QD of the same capacity, resulting in lower wheel loads and reduced bearing requirements on existing rails and corbels. Reinforcement is typically unnecessary. However, we recommend measuring rail center distance and parallelism; adjustments are needed if deviation exceeds ±3 mm/m.
Q: What's the delivery time, and how does after-sales service work?
A: Standard models ship in 3–4 months (including Type Test); custom designs take 5–6 months. Kelude offers an 18-month warranty on the complete crane plus a 5-year warranty on structural components, with free semi-annual inspections during the Warranty Period. Export projects include a remote CMS diagnostic system.
