Bridge Crane Full Range: Models, Parameters & Pricing Guide
Key Points The full range of overhead cranes covers the LD type single girder (1–20 t, from $29,700), LH type hoist double girder (5–32 t, from $118,600), QD type double-girder with trolley hoist (5–320 t, from $148,300), explosion-proof QB (1–100 t, from $148,300), and metallurgical YZ (5–320 t, from $296,600). Spans range from 7 to 35 m, with work duty classifications from A3 to A8. Cranes with a lifting capacity of 3 t or more are subject to special equipment regulation.
LD Type Single Girder: Lifting capacity 1–20 t, span 7–30 m, single main girder with electric hoist, work duty A3 to A5, from $29,700
LH Type Hoist Double Girder: Lifting capacity 5–32 t, span 10–30 m, twin main girders with electric hoist, work duty A3 to A5, from $118,600
QD Type Double Girder: Lifting capacity 5–320 t, span 10–35 m, twin main girders with box structure and trolley hoist, work duty A5 to A8, from $148,300
Explosion-Proof QB: Lifting capacity 1–100 t, span 7–35 m, single- or double-girder with explosion-proof hoist mechanism, work duty A3 to A6, from $148,300
Metallurgical YZ: Lifting capacity 5–320 t, span 10–35 m, twin main girders with heat-resistant steel and trolley hoist, work duty A6 to A8, from $296,600
Complete Overhead Crane Product Line Overview
This overhead crane product line is organized into five core series based on structure, hoisting mechanism, and work duty classification, providing full coverage from 1 to 320 tons.
LD Type Single-Girder Electric Overhead Crane — Features a single main girder with I-beam and C-type end carriage, equipped with a CD1/MD1 electric hoist. Lifting capacity 1–20 t, span 7–30 m, work duty A3 to A5. Its lightweight structure and easy installation make it a cost-effective lifting solution for small and medium factory buildings, warehouses, and light-duty workshops.
LH Type Electric Hoist Bridge Crane — Features a twin main girder structure with a CD1/HC electric hoist. Lifting capacity 5–32 t, span 10–30 m, work duty A3 to A5. With higher load capacity than the LD type, it is well suited for medium-duty processing operations and mid-range lifting and transport tasks.
QD Type Double-Girder Bridge Crane — Features a twin main girder box structure with a trolley hoist hoisting mechanism. Lifting capacity 5–320 t, span 10–35 m, work duty A5 to A8. Highly versatile, it is the standard configuration for machinery manufacturing, steel processing, and heavy industrial production lines.
Explosion-Proof Overhead Crane (QB Series) — Available in single- or double-girder configurations with an explosion-proof hoist or explosion-proof trolley hoist. Lifting capacity 1–100 t, span 7–35 m, work duty A3 to A6. Suitable for workshops in petrochemical, coal chemical, and pharmaceutical industries where flammable or explosive gases or dusty environments are present.
Metallurgical Overhead Crane (YZ Series) — Features twin main girders with heat-resistant steel structure and a high-temperature-resistant trolley hoist. Lifting capacity 5–320 t, span 10–35 m, work duty A6 to A8. Specifically engineered for high-temperature environments such as steel smelting, casting, and hot forming operations.
Series Specifications and Price Comparison
| Series | Structure & Hoist | Lifting Capacity | Span | Work Duty | Starting Price |
|---|---|---|---|---|---|
| LD Type Single Girder | Single main girder + electric hoist | 1–20 t | 7–30 m | A3 – A5 | from $29,700 |
| LH Type Hoist Double Girder | Twin main girders + electric hoist | 5–32 t | 10–30 m | A3 – A5 | from $118,600 |
| QD Type Double Girder | Twin main girders, box structure + trolley hoist | 5–320 t | 10–35 m | A5 – A8 | from $148,300 |
| Explosion-Proof QB | Single/double girder + explosion-proof hoist | 1–100 t | 7–35 m | A3 – A6 | from $148,300 |
| Metallurgical YZ | Twin main girders, heat-resistant steel + trolley hoist | 5–320 t | 10–35 m | A6 – A8 | from $296,600 |
1~20t LD type single girder·Lifting Capacity 7~30mSpan·A3~A5 2Starting from (10k CNY) | 5~32t LH Type Hoist Double Girder·Lifting Capacity 10~30mSpan·A3~A5 8Starting from (10k CNY) | 5~320t QD Type Double Girder·Lifting Capacity 10~35mSpan·A5~A8 10Starting from (10k CNY) | 1~100t explosion-proof type QB·Lifting Capacity 7~35mSpan·A3~A6 10Starting from (10k CNY) | 5~320t Metallurgical Duty YZ·Lifting Capacity 10~35mSpan·A6~A8 20Starting from (10k CNY) |
Full Range of Bridge Crane Models: Parameter Comparison
| Series | Lifting Capacity(t) | Span(m) | structural type | Work Duty / Classification | Entry Price(10k CNY) | Application Scenarios |
|---|---|---|---|---|---|---|
| LD type single girder | 1~20 | 7~30 | single main girder+Hoist | A3~A5 | 2 | Workshop Warehouse Light load |
| LH Type Hoist Double Girder | 5~32 | 10~30 | twin main girders+Hoist | A3~A5 | 8 | Medium Dutyoperating conditions |
| QD Type Double Girder Hoist Winch | 5~320 | 10~35 | twin main girders+trolley hoist | A5~A8 | 10 | Heavy load High Frequency |
| explosion-proof type QB | 1~100 | 7~35 | Single/Double Girder+Explosion-proof | A3~A6 | 10 | Chemical & Flammable Atmosphere |
| Metallurgical Duty YZ | 5~320 | 10~35 | twin main girders Heat-Resistant | A6~A8 | 20 | High-Temperature Metallurgical Workshop |
How to Select the Right Crane for Your Operating Conditions
Selecting the right crane requires a holistic assessment across four key dimensions: the operating environment, lifting capacity and duty frequency, span and available space, and long-term maintenance costs.
Light-Duty Indoor Applications — LD Type Single Girder
Ideal for machine shops, warehouses, and assembly lines with light loads and low-frequency operation. The rated lifting capacity typically does not exceed 10t, and a work duty classification of A3 to A4 is sufficient. The LD type features a simple design and low-maintenance costs, making it a cost-effective choice for budget-conscious projects. For detailed specifications, refer to LD Type Single-Girder Bridge Crane — Models, Parameters, Prices, and Selection Guide.
Medium-Duty Applications — LH Type Hoist Double Girder
When the rated lifting capacity falls within the 10–20t range, or when greater lateral stiffness and increased hook clearance are required, the LH type offers superior load-bearing stability through its double-girder configuration. This makes it well-suited for medium-sized fabrication shops and logistics distribution centers.
Heavy-Duty Applications — QD Type Double Girder
For production lines with a rated lifting capacity of 20t or more, operating 8+ hours per day with frequent inching and precise positioning, the QD type with a trolley hoist mechanism is the recommended choice. Select a work duty classification of A6 or higher to ensure reliable service life. For detailed specifications, refer to QD Type Double-Girder Bridge Crane — Models, Parameters, Prices, and Selection Guide.
Hazardous Environments — QB Explosion-Proof Type
Facilities containing flammable or explosive gases (such as hydrogen, acetylene, or methane) or combustible dusts (such as coal dust, aluminum powder, or flour) must use an explosion-proof overhead crane. The explosion protection class must be matched to the hazardous area classification of the site. For detailed specifications, refer to Explosion-Proof and Metallurgical Bridge Cranes — Explosion Protection Classes, Parameters, and Pricing.
High-Temperature Environments — YZ Metallurgical Type
Steel smelting and foundry workshops present high ambient temperatures, intense radiant heat, heavy loads, and demanding duty cycles requiring a work duty classification of A7 or higher. The YZ metallurgical series incorporates heat-resistant steel structures and specially designed high-temperature resistant motors to ensure safe and reliable operation under extreme thermal conditions.
If your operating conditions fall between these categories, refer to LH Type Electric Hoist Bridge Crane — Models, Parameters, Prices, and Selection Guide for additional intermediate options.
Special Equipment Compliance Across Crane Series
Under the Special Equipment Safety Law and TSG Q0002 (Safety Technical Regulations for Lifting Appliances), the regulatory requirements for overhead cranes are directly tied to their rated lifting capacity.
≥3t — Subject to Special Equipment Oversight
For LD type single-girder cranes (1–20t), models with a rated lifting capacity of 3t or more must complete use registration and undergo periodic inspections. LH type (5–32t) and QD type (5–320t) cranes are all rated at 5t or above and therefore fall entirely under special equipment management. For explosion-proof models (1–100t), those rated at 3t or more must additionally meet specialized explosion-proof inspection requirements. All metallurgical type cranes (5–320t) are subject to full oversight, and those with a work duty classification of A7 or higher must also undergo fatigue life assessment.
Key Maintenance and Inspection Points by Series
- LD Type: Maintenance frequency may be reduced for light-duty applications, but annual and monthly inspections are mandatory.
- LH Type: The hoist has a shorter maintenance cycle; inspect wire rope wear and brake clearance quarterly.
- QD Type: Establish a scheduled replacement program for gearbox lubricating oil in the trolley hoist. For work duty classifications of A7 or higher, perform main girder deflection measurement semi-annually.
- Explosion-Proof Type: In addition to routine inspections, verify the sealing integrity of explosion-proof electrical components and grounding resistance every six months.
- Metallurgical Type: Heat-resistant steel structures require regular flaw detection, including non-destructive testing of welds at least once per year.
Procurement and Delivery Process
The procurement and delivery of an overhead crane typically follows a five-stage process, from initial requirements definition to installation acceptance, with a total lead time of 30–60 working days (including design, manufacturing, shipping, and installation).
Stage 1: Requirements Definition (1–3 working days)
The buyer provides the factory building span, crane rail length, lifting requirements (maximum load weight, lifting frequency), and environmental conditions (temperature, humidity, explosion-proof requirements). Kelude Heavy Industry then prepares a preliminary technical solution and quotation.
Stage 2: Technical Solution Review (3–5 working days)
Core parameters such as rated lifting capacity, span, lifting height, and work duty classification are confirmed. The electrical control system configuration (variable-frequency drive, two-speed, remote control, or operator console) is selected, and the technical agreement and commercial contract are signed.
Stage 3: Manufacturing (20–40 working days)
Manufacturing lead times vary by series: approximately 20 days for LD type, 25 days for LH type, 30–40 days for QD type, and 35–50 days for explosion-proof and metallurgical types due to the procurement lead time for specialized components.
Stage 4: Shipping and Installation (5–10 working days)
The overhead crane is shipped either fully assembled or in sections to the site. A certified installation crew completes rail installation, main girder assembly, electrical wiring, and no-load commissioning.
Stage 5: Acceptance and Inspection (5–10 working days)
Static load testing (at 1.25 times the rated load) and dynamic load testing (at 1.1 times the rated load) are performed. The crane is then submitted for acceptance inspection by the local special equipment inspection authority, and the use registration certificate is obtained before the crane is handed over for operation.
1~320t Lifting Capacity Full Range | 7~35m Span Full Range | 2Starting from (10k CNY) Minimum Entry Price | ≥3t special equipment Threshold | 5Major Series Full Product Linecoverage | A3~A8 Work Duty / Classification |
Frequently Asked Questions (FAQ)
Q: Which bridge crane model is the most affordable?
A: The LD type single-girder electric crane offers the lowest entry price, typically ranging from about $30,000 to $74,000 for a 1t capacity and $74,000 to $148,000 for a 5t capacity. The LD type features a single main girder with an electric hoist, making it well-suited for light-duty applications. For higher lifting capacities, the LH type double-girder hoist crane (starting around $119,000) serves as a practical intermediate option.
Q: How do I select the right bridge crane for my application?
A: Selection is driven by lifting capacity and operating conditions: for light indoor duty from 1 to 20 tons, choose the LD single-girder type; for medium-duty applications from 5 to 32 tons, the LH double-girder hoist crane is recommended; for heavy-duty, high-frequency operations from 5 to 320 tons, the QD double-girder winch type is the standard choice. For chemical or explosive atmospheres, select the explosion-proof QB model, while metallurgical high-temperature workshops require the YZ type. Kelude offers complimentary selection assessments to help match the right crane to your specific needs.
Q: Do all overhead cranes require special equipment inspection and registration?
A: Bridge cranes with a rated lifting capacity of 3t or more and a lifting height of at least 2m must be registered under special equipment management. New installations must pass an installation supervision inspection per TSG Q7016-2016, followed by periodic inspections every two years and annual checks. Smaller LD type units rated 1–2t fall outside this regulatory scope and do not require inspection filing.
Q: What are the typical lead times for delivery and installation?
A: Standard lead times are 30–45 days for LD type, 45–60 days for LH type, 60–90 days for QD type, and 90–120 days for explosion-proof or metallurgical models (including procurement of specialized components). On-site installation and commissioning typically take 7–15 days, including load testing. Kelude provides installation guidance and full assistance with TSG inspection procedures.
All five series of our overhead cranes come with tailored solutions to meet diverse operational demands. For accurate tonnage-based quotations and expert selection recommendations, contact our sales team for a complimentary application assessment. From 1 ton to 320 tons, our full range of bridge cranes covers every industrial application scenario.
