LD Type Electric Single-Girder Crane

1. Product Description

The LDA Type Electric Single-Girder Crane is a light-duty single-girder lifting solution designed for use with CD1/MD1 electric hoists. With a lifting capacity of 1 to 20 tons and a span of 1 to 50 meters, it features a robust structure and high rigidity, making it ideal for material handling and hoisting operations in factory workshops, warehouses, and storage yards. Custom non-standard manufacturing is also available upon request. This article details the specifications, technical parameters, applicable scope, and purchasing guidelines for the LDA Type Single Girder Crane.

2. Specifications & Models

Model Overview:

• LDA Type: 1t, 2t, 3t, 5t, 10t, 16t, 20t. Custom non-standard lifting capacities are available.
• LDE Type (Twin Hoist): 2t (1+1T), 4t (2+2T), 6t (3+3T), 10t (5+5T), 20t (10+10T).

3. Technical Parameters

• Span: 16m, 19m, 20m, 22m, 26m, 29m, 31m, 36m; custom spans from 1 to 50 meters are available.
• Lifting Height: 6m, 9m, 12m, 18m, 24m, 30m. Custom heights can be manufactured.
• Work Duty / Classification: A3/M3
• Lifting Speed: 0.35m/min, 0.7m/min, 0.8m/min, 3.5m/min, 7m/min, 8m/min. Custom speeds available.
• Long Travel Speed: 10m/min, 20m/min, 30m/min, 40m/min. Custom speeds available.
• Cross Travel Speed: 20m/min. Custom non-standard speeds available.
• Power Supply: 3-Phase AC 380V 50HZ (Voltage can be customized for export destinations).

The above parameters are designed and manufactured based on the actual lifting capacity, span, and hoist lifting height, and can also be customized to meet specific operational requirements.

Product Images

4. Advantages & Limitations

• Advantages: Short production lead time, cost-effective, and sufficient lifting capacity for typical workshop operations.
• Limitations: Relatively lower effective lifting height, more noticeable load swing during operation, and a lower work duty classification, making it unsuitable for heavy-duty workshops.

5. Applicable Scope

The LDA Type Single Girder Crane is suitable for material handling in workshops, warehouses, and storage yards across various industries, including machinery manufacturing, metallurgy, petrochemical, port terminals, railway and highway construction, civil aviation logistics, power plants, water treatment facilities, paper mills, mining, building materials, construction, and electronics.

Important Notice: This equipment is not suitable for environments with flammable or explosive atmospheres, high humidity, or acidic/alkaline gases. It is also not intended for handling molten metal or toxic materials. For such special conditions, a metallurgical or explosion-proof crane is required.

Structural Diagram

6. Purchasing Information

To help us confirm your requirements quickly, please provide the following details when purchasing a Single Girder Crane:

• Lifting Capacity
• Span (distance between rail centers)
• Lifting Height (from hook center to floor)
• Do you require crane rails and cables? (Please provide the crane travel length)
• Please share any additional detailed specifications you have, and we will provide a competitive quotation for the Single Girder Crane.

7. After-Sales Service

The LD Type Electric Single-Girder Crane is covered by a warranty for one year from the date of sale against quality-related defects under normal operating conditions. For products beyond the warranty period (excluding those that are irreparable), our company provides maintenance services, charging only for the cost of replacement parts.

Price Reference (for your budgeting): The price of an LD Type Electric Single-Girder Crane is calculated based on lifting capacity and span. For example, a 5-ton crane with a 12-meter span is approximately CNY 20,000 to 35,000; a 5-ton crane with a 16-meter span is approximately CNY 25,000 to 40,000. As a direct factory supplier, Kelude Heavy Industry offers wholesale pricing even for single-unit orders. Optional features are priced separately, with transparent price differences.

Availability & Lead Time: Common specifications are kept in stock and ship within 7–10 days after parameter confirmation. Custom non-standard units ship in 15–20 days. Every crane undergoes load testing before leaving the factory and ships with a Certificate of Conformity and inspection report.

Technical Parameters Overview

8. Main Components

The LDA Type Electric Single-Girder Crane consists of three main assemblies: the bridge, the electric hoist, and the electrical system.

▎Bridge
The main girder is a box-section structure welded from I-Beam and Steel Plate, while the End Carriages are formed from rolled sections or bent steel plate. The main girder and end carriages are joined with High-Strength Bolts. The bridge carries the full rated load plus its own Dead Weight. The LDA Type bridge features a simple structure and low Dead Weight, making it suitable for spans from 7.5m to 35m.

▎Electric Hoist
Pairs with a CD1 Type (Single-Speed) or MD1 Type (Two-Speed) Wire rope hoist that travels along the lower flange of the main girder I-Beam. The CD1 offers an 8m/min Lifting Speed suitable for general material handling, while the MD1 adds a 0.8m/min creep speed for precise positioning when handling delicate equipment or aligning loads.

▎Electrical System
Powered by 380V three-phase supply with a 36V safe control voltage. Operation options include Floor operation via pendant and Wireless remote control — the pendant is more economical, while the remote offers greater flexibility. The control panel features master stop and start buttons for one-touch power cutoff in Emergency situations.

Applications & Customer Cases

The LDA Type Single Girder Crane is the highest-volume model among domestic Chinese cranes in the small-to-medium capacity range, for a simple reason — excellent value, short lead times, and adequate performance. Where it truly delivers in practice:

▎Machinery Manufacturing Workshops
Hoisting and transferring components is the most typical application for the LDA Type. With dozens of lifting cycles per day and workpieces under 5 tons, the A3/M3 Work Duty rating of the LDA Type is more than sufficient. A mold factory in Ningbo, Zhejiang, installed two LDA Type 10-ton Single Girder Cranes with a 22m span to handle mold steel receiving and transfer between machines. After 4 years of service, aside from routine Wire rope replacement on the hoists, no major issues have occurred. The plant manager's exact words: "Far more cost-effective than renting forklifts."

▎Warehouses & Storage Yards
For loading/unloading in steel warehouses and finished goods storage, the LDA Type can be equipped with a Remote Control for Floor operation, allowing a single operator to handle lifting tasks without a dedicated crane operator. A stainless steel pipe factory in Wuxi, Jiangsu, uses an LDA Type 16-ton Single Girder Crane with a 26m span in its warehouse, fitted with a Lifting magnet for pipe handling. What the customer values most is the Two-Speed hoist option — the hook lowers rapidly when empty (8m/min) and switches to creep speed (0.8m/min) as it approaches the load, delivering far better operating accuracy than a Single-Speed hoist.

▎Power Stations / Water Treatment Plants
In pump houses and maintenance bays at power stations and water plants, equipment is generally compact but requires smooth, stable lifting. The LDA Type's simple construction and low Maintenance costs make it well-suited for these budget-conscious applications that still require a certified overhead crane. A county-level water supply plant in Henan installed an LDA Type 5-ton Single Girder Crane with a 16m span in its water supply pump room for pump and valve maintenance. The customer reports that equipment maintenance efficiency has doubled — previously a forklift required clearing the floor area first; now they simply lift directly.

Why Choose Kelude Heavy Industry

FAQ

Q: What's the difference between the LDA Type and LDE Type Single Girder Cranes?
A: The LDA Type is the standard Single Girder Crane, equipped with one Electric Hoist, with a Lifting Capacity of 1 to 20 tons. The LDE Type is a dual-hoist configuration, with two Electric Hoists running on the same main girder, designed for applications requiring simultaneous or alternating lifting of two workpieces. Its Lifting Capacity is expressed as (1+1T) to (10+10T). The LDE Type typically costs 30%–50% more than an LDA Type of equivalent capacity.

Q: What's the relationship between the LD Type Electric Single-Girder Crane and the LDA overhead crane?
A: "Overhead crane" is a colloquial term used in parts of northern China for an overhead traveling crane. The LD Type is the earlier model designation, while the LDA Type is the upgraded version — with improved End Carriage structure and drive unit for smoother operation. Most "LD Type" cranes sold on the market today have already been upgraded to LDA Type standards. The common components (Electric Hoist, travel wheel, cable pulley block) are largely interchangeable between the two.

Q: How much does an LDA Type Electric Single-Girder Crane cost?
A: Pricing varies significantly based on capacity, span, and configuration: 1 ton × 10m approximately ¥15,000; 5 ton × 16m approximately ¥30,000–50,000; 10 ton × 22m approximately ¥60,000–90,000; 16 ton × 26m approximately ¥90,000–130,000; 20 ton × 30m approximately ¥120,000–170,000. The price includes the main crane + Electric Hoist + Remote Control, excluding rails and installation. The LDE dual-hoist version adds approximately 40% to the base price. Final pricing is subject to actual operating parameters.