رافعة ذات ارتفاع منخفض

A low headroom crane is a compact overhead crane system. This equipment is specifically designed for locations with limited vertical clearance and is intended to maximize the hook’s effective travel. The equipment has a rated lifting capacity of 1 to 20 tons and a span range of 7.5 to 31.5 meters. It is powered by a three-phase power supply of 220V–660V/50–60Hz and complies with duty classes A3–A4 (FEM 1.001). VOITTO Crane’s low headroom overhead crane products have obtained CE, ISO 9001, FEM 1.001, and GB/T 14405 certifications and are widely used in automotive assembly, steel processing, and factory production.

وصف المنتج

A low-headroom crane is a lifting system specifically designed to minimize the distance between the top of the hook and the main girder. Compared to traditional overhead cranes, this design can increase the effective hook height by as much as 30%–40%. The low-headroom design integrates the hoisting mechanism directly into the side of the main girder, thereby eliminating previously wasted headroom.

This design principle applies to both single-girder and double-girder configurations. In single-girder models, the hoisting mechanism is mounted on the side of the main girder, whereas in double-girder structures, it is positioned between the two main girders, thereby further maximizing hook height. As a result, practical lifting operations can be performed even in facilities with a ceiling height of just 5 meters, without the need for costly structural modifications.

This low-headroom overhead crane retains all the operational advantages of a traditional overhead crane. The equipment features precise three-axis load positioning and a high duty cycle, and supports either wireless remote control or cab operation. As a result, this model is the preferred solution when using a standard crane would require costly factory expansions or raising the roof.

Types of Low Headroom Overhead Cranes

Low headroom overhead crane designs fall into three primary categories, each suited to a distinct structural and operational context.

Single Girder Low-headroom Crane

Double Girder Low-headroom Bridge Crane

رافعة مقاومة للانفجار ذات ارتفاع منخفض

• Single-girder Low-headroom Crane: This model is suitable for loads ranging from 1 to 10 tons and spans of up to 22.5 meters. It requires the least amount of headroom, making it the most cost-effective choice for light- to medium-duty applications.
• Double-girder Low-headroom Bridge Crane: A specialized low-headroom hoisting mechanism is supported and mounted between two parallel main girders. This configuration supports lifting capacities of 5 to 20 tons and spans of up to 31.5 meters. Its rigid double-girder structure provides excellent lateral stability under dynamic loads, making it ideal for continuous production operations.
• Explosion-proof Low-headroom Cranes: This optional model combines a low-headroom design with electrical components compliant with ATEX certification (IEC 60079 standard). This equipment is primarily used in environments where flammable, explosive, or dusty conditions are present.

When selecting a low-headroom overhead crane, users primarily consider lifting capacity, factory span, required duty class, and environmental conditions.

Key Features and Technical Advantages of the Low Headroom Crane

Compared to traditional lifting equipment, low-headroom cranes offer significant performance advantages in the following six key areas:

• Maximized Hook Travel: Crane manufacturers integrate the hoist body into the beam profile, a design that increases effective lifting height by up to 40%.
• Compact End-beam Assembly: This design incorporates precision-machined wheels and an integrated drive unit, reducing the overall structural dimensions.
• Variable Frequency Drive (VFD) Control: Equipped with a VFD, the equipment reduces mechanical shock during hoist startup, extends the service life of the gearbox and wire rope, and enables stepless speed regulation within the range of 10% to 100% of the rated speed.
• Multiple Control Modes: Users can select from various control options based on actual operating conditions, including a floor-mounted pendant controller, a wireless remote control (with an effective range of up to 100 meters), and an enclosed operator cab.
• قدرة عالية على التكيف: The electrical control box has an IP54 (IEC 60529) protection rating, making it suitable for ambient temperatures ranging from -20°C to +40°C and relative humidity up to 85%.
• تكاليف صيانة منخفضة: The drum and trolley wheels use sealed bearings, extending the lubrication interval to 2,000 operating hours.

التطبيقات

Typically, users employ low-headroom cranes to perform lifting tasks in the following scenarios.

• Automotive Final Assembly: Operators use this equipment in automotive production workshops to lift pallets and tooling fixtures.
• مصانع الصلب: Users employ low-headroom overhead cranes to handle steel coils and stack steel plates.
• Shipbuilding and Offshore Engineering: Shipyard personnel use this equipment to perform lifting tasks in hull sections and prefabrication workshops.
• التصنيع: In heavy-duty CNC machining centers, operators control this equipment to perform material lifting tasks.
• Renovation Projects for Older Factory Buildings: Without altering the building layout, users install low-headroom lifting equipment to effectively increase lifting height.
• Electronics and Precision Manufacturing Industries: This equipment is suitable for scenarios with high requirements for operational stability and space utilization.

المواصفات الفنية

The table below summarizes the standard design parameters. For configurations outside this range, VOITTO can provide customized solutions.

Low-headroom Crane for Sale

VOITTO Cranen is a specialist manufacturer of overhead lifting equipment serving automotive, steel, shipbuilding, and logistics industries worldwide. The product range covers single-girder and double-girder bridge cranes, gantry cranes, jib cranes, and custom-engineered lifting systems, all manufactured under ISO 9001:2015 and CE-certified quality processes.

Before our sales team provides a quote, our engineering team calculates the headroom for each span to confirm that the specified hook height can be achieved within the customer’s facility without modifying the track beams. In addition, our standard services include on-site installation guidance and load testing to ensure full compliance with local safety regulations upon delivery. Please feel free to اتصل بنا for low headroom crane solutions.

آلان

أخصائي حلول الرافعات · رافعة Voitto

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الأسئلة الشائعة

What is the minimum building height required for a low headroom crane?

The minimum clear height required for a factory building depends on the span and lifting capacity. Taking a common 5-ton single-girder low-headroom crane as an example, the height from the floor to the bottom of the rail girder is approximately 4.8–5.2 meters, whereas a standard crane with the same lifting capacity requires 6.0–6.5 meters.

How does a low headroom crane differ from a standard overhead crane?

The primary difference lies in hoist integration: a low headroom design recesses the drum and gearbox within the beam depth, reducing the distance between the rail top and the hook at the highest position by 400–800 mm.

Can a low headroom overhead crane operate in cold storage facilities?

Yes. The standard operating temperature range is -20 °C to +40 °C, which covers most cold-chain distribution and food-processing environments. Cold-grade lubricants and low-temperature-rated motors are fitted as standard rather than as an option, eliminating the need for a separate specification.

Which control mode is recommended for high-cycle automotive applications?

Radio remote control is preferred because it allows the operator to position alongside the load rather than at a fixed pendant station, improving cycle times by 10–15 %. Moreover, the radio system complies with EN 13557 safety category 3, meeting the functional safety requirements of modern automotive production standards.