Single Beam Semi Gantry Crane

Authentication mark:

This crane is mainly used in warehouse loading bays, outdoor storage yards adjacent to buildings, and heavy equipment maintenance workshops.

Capacity:

1 t – 20 t (electric hoist configuration, reinforced design up to 25t optional)

Lifting Height:

3 m – 12 m customizable

Span:

6 m – 16 m

Voltage/Hertz:

380V 50Hz 3 phases

Working Class:

A3, A4, A5

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Introduction

Application Scenario

Advantages

Structural Diagram And Parameter Table

INTRODUCTION

What is this?

The single beam semi gantry crane is a single main beam gantry crane with one leg running on a ground rail and the other leg running on a rail mounted on the building column. It uses an electric hoist to lift and lower loads and move left and right, achieving handling of small to medium-sized materials, equipment, workpieces, and more. If your workshop has limited building height and cannot accommodate a standard overhead crane, and you have a limited budget with capacity needs between 1 ton and 20 tons, this product is designed for you.

Why choose a single beam semi gantry crane over a double beam semi gantry crane?

Compared to double beam semi gantry cranes, the single beam semi gantry solution offers three core advantages:

First, lower investment cost – simplified single girder structure, lighter self-weight, reducing cost by 30%-40%, especially suitable for small and medium-sized enterprises with limited budgets.

Second, shorter installation time – lower workshop load requirements, simpler rail installation, shortening installation time by about 50%.

Third, easier maintenance – compact electric hoist design with fewer failure points, lower daily maintenance costs.

Solve small to medium-capacity handling problems in semi-confined spaces with less investment.

What can we do for you?

We understand that every customer has different workshop structures, different capacity requirements, and different working areas. Therefore, we offer flexible customization options: lifting capacity from 1 ton to 20 tons; span from 6 meters to 16 meters; control options of pendant or remote radio; speed options of single speed, dual speed, or VVVF. Whether your workshop is old with low clearance or compact in space, we can match the most suitable span and lifting height.

Unsure? Don't know?

Not sure whether a semi gantry or a full gantry is more suitable for your workshop? Not sure what capacity and span you need? No problem. Just tell us: your building column height, your workshop span, and the maximum weight of the objects 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] Workshop Loading Bays – Handling materials near bay doors where one side lacks floor space for a full gantry leg.

[2] Outdoor Storage Yards – Stacking and retrieving steel, timber, or concrete products along building walls.

[3] Container Loading Areas – Lifting goods from trucks or containers with the wall‑supported side saving space.

[4] Recycling Facilities – Moving scrap bins and bales along a building edge.

[5] Maintenance Shops – Servicing large machinery placed near workshop walls.

ADVANTAGES

[1] Space‑Saving Design – Eliminates one gantry leg, freeing up floor space on one side.

[2] Cost‑Effective – Uses existing building structure for support, reducing steel and installation costs.

[3] Versatile Application – Suitable for both indoor and outdoor use along building perimeters.

[4] Easy to Install and Relocate – Can be moved or adjusted with minimal foundation work.

[5] Smooth and Safe Operation – Rail‑guided on the ground side, with anti‑derailment protection.

STRUCTURAL DIAGRAM AND PARAMETER TABLE

Parameter	Specification
Working Class	A3, A4, A5
Capacity	1 t – 20 t
Span	6 m – 16 m
Lifting Height	3 m – 12 m customizable
Lifting Speed	4 – 10 m/min (single speed) 8 – 20 m/min (dual speed / VVVF optional)
Trolley Travelling Speed	10 – 20 m/min (manual or motorized, integrated with hoist)
Crane Travelling Speed	20 – 40 m/min (single speed / dual speed / VVVF optional)
Control Method	Pendant control (standard) / Remote radio control (optional)
Power Supply	380V / 50Hz / 3-phase
Temperature	-10°C to +45°C
Protection Grade	Hoist motor: IP44 – IP54, Insulation class F Crane motor: IP44 – IP54
Girder Type	Single Beam – Rolled steel I-beam or box section with one rigid leg + one hinged leg (semi-gantry configuration)

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.