OVERHEAD CRANE

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LD Electric Single-girder Crane

Authentication mark:

This crane is mainly used in light manufacturing workshops, warehouses, machining shops, assembly lines, and maintenance areas.

Capacity:

1 t – 20 t customizable

Lifting Height:

6 m – 18 m (customizable based on building clearance)

Span:

7.5 m – 22.5 m customizable

Voltage/Hertz:

3 Phase 380V 50hz

Working Class:

A3, A4, A5 (Light to medium duty)

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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

What is this? The LD electric single-girder crane is a widely used, cost-effective overhead lifting solution featuring a single main beam structure with an CD/MD electric hoist. The hoist travels along the bottom flange of the I-beam or box-section girder, achieving precise lifting and handling of light to medium loads such as machinery parts, raw materials, finished goods, tools, and assembled components. As the most popular single girder crane model in the market, the LD series is known for its simple structure, reliable performance, and easy maintenance. If your workshop has standard building height and you need a dependable, budget-friendly overhead crane for daily lifting tasks under 20 tons, this product is designed for you. Why choose an LD single girder crane over a double girder crane? Compared to double girder overhead cranes, the LD single girder solution offers four core advantages: First, lower investment cost – simplified single beam structure reduces manufacturing cost by 30%-40%, making it the most economical choice for light to medium lifting applications. Second, faster installation – lighter self-weight with simpler rail requirements, installation and commissioning completed within 5-7 days. Third, greater headroom – the single girder with bottom-running hoist occupies less overhead space, providing higher effective lifting height under the same building clearance. Fourth, easier maintenance – fewer moving parts, fewer failure points, and modular hoist design result in lower daily maintenance costs. Get reliable overhead lifting with the most economical investment. What can we do for you? We understand that every customer has different building structures, different capacity requirements, and different working areas. Therefore, we offer flexible customization options: lifting capacity from 1 ton to 20 tons; span from 7.5 meters to 22.5 meters; hoist types of CD electric hoist (single speed) or MD electric hoist (dual speed); control options of pendant, remote radio, or cabin; VVVF speed control optional for smooth start/stop. Whether your workshop is for machining, assembly, warehousing, or maintenance, we can match the most suitable span and lifting height. Unsure? Don't know? Not sure what lifting capacity suits your daily workload? Don't know what span fits your workshop width? No problem. Just tell us: your building clearance height, your workshop span, and the maximum weight to be lifted. Our engineers will provide you with an accurate quote and CAD drawings within 24 hours. Click the button below or contact us via WhatsApp/email to get your customized solution. 💡 Tip: We offer free selection consulting. Even if you are unsure about specific parameters, feel free to describe your workshop structure and handling needs, and we will calculate for you.

APPLICATION SCENARIO

1] Light Manufacturing Workshops – Handling raw materials, semi-finished products, tools, and assembled components in plastics, electronics, textiles, and general manufacturing industries. [2] Warehouses and Distribution Centers – Loading/unloading goods from trucks, moving pallets and cartons to storage racks, and efficient order picking operations. [3] Machining Shops – Lifting workpieces, engine blocks, gearboxes, castings, and machine parts between lathes, mills, grinders, and other equipment. [4] Assembly Lines – Moving components, motors, pumps, subassemblies, and finished products along the production line. [5] Maintenance Workshops – Servicing equipment parts, motors, pumps, gearboxes, and heavy tools in plant maintenance areas.

ADVANTAGES

[1] Cost-Effective Design – Single girder structure reduces overall cost by 30%-40% compared to double girder cranes. [2] Widely Used and Proven – The LD series is the most popular single girder crane, trusted by thousands of customers worldwide. [3] Compact Headroom – Bottom-running hoist design maximizes lifting height under limited building clearance. [4] Fast Installation – Lightweight structure with simple rail requirements allows quick installation, typically 5-7 days. [5] Easy Maintenance – Modular hoist design with standard components allows quick replacement and simple daily inspection. [6] Flexible Control Options – Available with pendant control, remote radio control, or cabin control.

STRUCTURAL DIAGRAM AND PARAMETER TABLE

Parameter	Specification
Working Class	A3, A4, A5 (Light to medium duty)
Capacity	1 t – 20 t
Lifting Height	6 m – 18 m
Lifting Speed	4 – 12 m/min
Trolley Travelling Speed	20 – 35 m/min
Crane Travelling Speed	20 – 45 m/min
Control Method	Pendant control / Remote radio control / Cabin control
Power Supply	380V / 50Hz / 3-phase
Temperature	-20°C to +50°C
Hoist Type	CD electric hoist (single speed) / MD electric hoist (dual speed)
Girder Type	Single girder – I-beam or box-section with bottom-running electric hoist

Six core advantages

Full Scenario Coverage

Nucleon covers over 20 product categories including ladle cranes, multi-purpose cranes, intelligent cranes, overhead/portal cranes, RTG, RMG, deck cranes, portal cranes, girder launchers, yacht cranes, KBK, and jib cranes. From steel smelting to port handling, bridge construction to ship equipment, Nucleon provides one-stop lifting solutions. Whether standard models or extreme-condition customizations, Nucleon possesses mature technical expertise and proven track records, saving customers from dealing with multiple suppliers.

Military-Grade Quality Standards

We use high-strength steel from Baosteel/Ansteel for key structural components, with 100% NDT inspection and one-clamp CNC gantry machining. Every machine undergoes 120% dynamic load and 125% static load tests before delivery, with continuous operation verification under extreme conditions. Even in 24/7 continuous casting plants, -40°C arctic ports, or high-temperature humid ship cabins, our cranes maintain millimeter-level precision and zero-drift stability—quality that stands the test of time.

Extended Longevity & Low Maintenance Cost

Our main girders are FEA-optimized and double-submerged arc welded, with a design life of ≥30 years. Key bearings are lifetime lubrication-free, and hardened travel wheels extend wear cycles by 3 times. Core components feature modular quick-change interfaces with spare parts commonality exceeding 80%. Annual maintenance costs are reduced by 40%~60%, saving millions in lifecycle operating expenses — truly "invest once, benefit long-term."

Energy Efficiency Leader

Our entire series comes standard with IE5 permanent magnet synchronous motors + energy feedback VFD drives, achieving 25%~35% comprehensive energy savings. Single-motor operation under light loads and adaptive speed control reduce electrical waste by over 30%. High-strength steel lightweight design cuts deadweight by 15%~20%, lowering workshop load requirements. A single ladle crane station saves over RMB 150,000 in electricity costs annually, helping customers achieve green and low-carbon production.

Ultimate Safety Redundancy Design

Our hoisting mechanism comes standard with dual brakes + mechanical overspeed switch + triple limit switches, featuring multiple redundant interlocks to prevent load dropping and over-traveling. Large products use box girder torsion-resistant structures, remaining stable even in level 8 gusty winds. Optional intelligent safety monitoring systems detect anomalies in load, skew, wind speed, etc., with automatic alarms and shutdowns. Overall safety redundancy coefficient > 2.0, maintaining zero crane safety incidents for many consecutive years.

Deep Customization & Full Lifecycle Service

We provide complete front-end support from site survey and mechanical simulation to civil review, delivering custom drawings within 2 weeks, with non-standard lead times only 5~7 days longer than standard products. We establish lifelong digital dossiers for customers, warning of end-of-life components 3 months in advance. Our full lifecycle services cover installation training, regular inspections, and remote O&M. With customer repeat purchase rates exceeding 85% for five consecutive years, we are a trustworthy long-term partner.

OVERHEAD CRANE

HOT PRODUCTS

Explosion-proof Double-girder Bridge Crane

Single-girder Bridge Grab Crane

Double Girder Overhead Crane

Single Girder Hoist Overhead Crane

LD Electric Single-girder Crane

Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

APPLICATION SCENARIO

ADVANTAGES

STRUCTURAL DIAGRAM AND PARAMETER TABLE

Six core advantages

WHY CHOOSE NUCLEON

Safety First

Custom Engineering

Global Support

Cost-Effective ROI

500+

1200+

33

170+

NUCOLLEN CERTIFICATE

CU-TR Certificate

ISO 14001:2004 Certificate

EAC Certificate

ISO 45001:2018 Certificate

EC Machine Safety Attestation Certificate

EJ/T 9001-2014 Certificate

CE Conformity

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