The LH Double Girder Overhead Crane is a versatile and robust lifting solution designed for medium-duty industrial applications, offering enhanced stability, precision, and efficiency. Below is a detailed breakdown of its features, specifications, and applications based on the provided search results:
Double Girder Design:
Provides superior rigidity and load-bearing capacity compared to single girder cranes.
Box-type main girder constructed from CNC-cut steel plates for high precision and durability.
Span range: 10.5–31.5 meters (customizable up to 50 meters).
Lifting Capacity:
Standard models: 5–32 tons (extended models support up to 50 tons).
Dual-hook options: Available for simultaneous handling of primary and auxiliary loads (e.g., 20/5t, 32/10t).
Hoist and Trolley:
Equipped with CD/MD-type electric hoists with dual-speed lifting (e.g., 0.8/8 m/min for precision tasks).
Trolley speed: 20–63 m/min (adjustable with optional variable frequency drives).
Safety and Control:
Safety devices: Overload protection, limit switches, emergency stops, and polyurethane buffers.
Control methods: Pendant, remote, or cabin control.
Electrical components: Schneider or CHINT brands for reliability.
| Parameter | Range/Details |
|---|---|
| Lifting Capacity | 5–32 tons (up to 50 tons for custom models) |
| Span | 10.5–31.5 meters (extendable to 50m) |
| Lifting Height | 6–60 meters (adjustable) |
| Lifting Speed | 0.8–8 m/min (dual-speed) |
| Trolley Speed | 20–63 m/min |
| Crane Travel Speed | 20–110 m/min (VFD optional) |
| Work Duty Class | A3–A5 (ISO 4301-1) |
| Power Supply | 380V, 50Hz, 3-phase |
| Ambient Temperature | -20°C to +60°C |
Manufacturing & Assembly:
Lifting machinery, raw materials, and finished products in automotive, electronics, and machinery workshops.
Steel Mills & Foundries:
Handling steel coils, molds, and ladles (e.g., 32-ton models for steel warehouses in Kazakhstan).
Power Plants:
Maintenance of turbines, generators, and transformers (e.g., 275-ton cranes in power stations).
Warehousing & Logistics:
Efficient stacking and retrieval of goods in large warehouses or ports.
Mining & Construction:
Transporting heavy equipment and raw materials.
Durability:
High-quality carbon steel (Q235B/Q345B) construction and forged hooks ensure longevity.
Energy Efficiency:
Compact design reduces building modification costs; optional VFDs lower energy consumption.
Precision:
Dual-speed hoists enable smooth acceleration and precise load positioning.
Safety Compliance:
Overload alarms, anti-collision systems, and fail-safe brakes meet FEM/DIN standards.
Customization:
Configurable spans, lifting heights, and speeds tailored to specific workflows.
| Feature | LH Double Girder | QD Heavy-Duty Crane |
|---|---|---|
| Capacity | 5–50 tons | 25–800 tons |
| Work Duty | A3–A5 | A3–A7 (heavy/severe duty) |
| Cost | Moderate | Higher investment |
| Use Case | Medium-duty industrial tasks | Extreme loads (e.g., shipyards) |
The LH Double Girder Overhead Crane is ideal for industries requiring reliable, medium-capacity lifting with precision and safety. Its adaptability to diverse environments—from steel mills to warehouses—makes it a cost-effective choice for optimizing material handling workflows. For heavy-duty needs (e.g., 100+ tons), consider upgrading to QD or NLH European-style models.
Yes, because the working condition are different, all our products are customized depending on detail requirement! So all your products will be specially designed by our engineers according to your workshop conditions.
Yes, all kinds of certification are available, if you have doubt, you can come to our factory and test it by yourself,or you can let some third-partied to do the inspection for you.
Yes, we have. But we only have the standard-sized products, if you need customized products, then it will take some time to manufacture it.
It depends on your products quantity and products data you given, but we will try our best to deliver your products as soon as possible.
We will sent you the detail installation manual or if you are needing, our installation engineers can come to your workshop to guide the installation.
You can come to our factory anytime when you are convenient. We will make arrangement to pick you up.
