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เมืองฉางยวน, มณฑลเหอหนาน, จีน
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7 ton single girder overhead crane: compact, reliable, easy maintenance for factory and warehouse lifting with spans up to 31.5m.
The 7 ton single girder overhead crane is a lightweight yet robust material-handling solution engineered for general manufacturing, warehousing and workshop applications that demand a lifting capacity beyond conventional 3–5 ton units while keeping structural weight and investment costs low.
7 ton single girder overhead crane
Built on a single box girder supported by two end carriages running on rails, the crane integrates a compact electric hoist and trolley that traverse along the girder flange. Its low headroom design means it can be installed in workshops with limited ceiling height — typically saving 300–500 mm of building height compared with double-girder configurations — which directly reduces plant construction costs. The 7-ton model fills the gap between light-duty single-girder cranes and heavier double-girder systems, making it a cost-effective choice for mid-range lifting in production lines, repair shops and storage yards.
The crane complies with international standards such as FEM and GB/T 3811, is fully customizable in span and lifting height, and can be configured with either pendant or radio remote control to suit different site layouts and operation habits.
7 ton single girder overhead crane
| Parameter | Value |
|---|---|
| Rated lifting capacity | 7 t |
| ช่วง (Lk) | 7.5 – 31.5 m (customizable) |
| Lifting height | 6 – 18 m (up to 30 m on request) |
| Lifting speed | 5 / 0.8 เมตร/นาที (dual speed) or variable |
| Trolley travel speed | 20 เมตร/นาที |
| Crane travel speed | 20 – 30 เมตร/นาที |
| Working duty | A3 – A5 (M3 – M5) |
| Power supply | 380 วี / 50 เฮิรตซ์ / 3-phase (or as specified) |
| Hoist model | CD1 / MD1 type single-girder hoist |
| Rail specification | P18 – P38 / QU70 (per span) |
| Control mode | จี้, รีโมทวิทยุ, หรือห้องโดยสาร (optional) |
| Max wheel load | According to span and rail configuration |
7 ton single girder overhead crane
The 7 ton single girder overhead crane is the right choice wherever reliable, economical and space-saving lifting above 5 tons is required without the expense of a heavier double-girder system.
ไตรมาสที่ 1: What is the maximum span available for a 7 ton single girder overhead crane?
ก: Standard spans range from 7.5 m to 31.5 m, and larger spans can be engineered on request depending on the rail and structural design.
ไตรมาสที่ 2: Can the 7-ton single girder crane be operated by remote control?
ก: Yes. It supports pendant control, radio remote control, and cabin operation — the control mode is selected according to the customer’s site and operating requirements.
Q3: What is the minimum workshop height needed to install this crane?
ก: Thanks to its low headroom design, installation generally requires 300–500 mm less headroom than a comparable double-girder crane, which helps reduce factory building costs.
ไตรมาสที่ 4: What safety devices does the crane include?
ก: The crane is equipped with an overload limiter, upper and lower limit switches, an anti-drop device, anti-phase protection and an emergency stop as standard features.
Q5: Is the lifting height adjustable?
ก: Yes. The lifting height is normally 6–18 m and can be customized up to 30 m based on the application.
Q6: What working duty is this crane suitable for?
ก: It is rated for working duty A3–A5 (M3–M5), covering intermittent to medium-duty operation in general manufacturing and warehousing.
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