30 Tons Overhead Crane

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30 Tons Overhead Crane: Heavy-Duty Material Handling Solution

30 Tons Overhead Crane

Le 30 tons overhead crane is a core material handling equipment designed for medium-to-heavy industrial applications. It excels in lifting, mobile, and positioning loads up to 30 tons with high precision, stability, et la sécurité, making it an indispensable asset for industries requiring efficient heavy-load transportation. Whether in manufacturing workshops, power plants, or logistics yards, this crane optimizes workflow, reduces manual labor intensity, and ensures consistent operational efficiency.

30 Tons Overhead Crane Core Features

30 Tons Overhead Crane

Le 30 tons overhead crane integrates advanced engineering, safety design, and user-friendly functionality, with the following key advantages:

1. Robust Structural Design: The main beam and end beams are fabricated from high-strength Q345B steel, undergoing strict welding and heat treatment processes. This ensures excellent load-bearing capacity, résistance à la déformation, and long-term durability even under frequent heavy-load operations.
2. Comprehensive Safety Protection: Equipped with multiple safety devices to eliminate operational risks:
- Overload protection device: Automatically cuts off power when the load exceeds 110% of the rated capacity, preventing structural damage.
- Upper/lower limit switches for hoisting: Stops the hook from overtraveling, avoiding collisions with the crane frame or ground.
- Emergency stop button: Enables immediate shutdown of all mechanisms in case of emergencies.
- Anti-sway system: Reduces load swing during movement, improving positioning accuracy and preventing load damage.
3. High Operational Efficiency:
- The hoisting mechanism adopts a high-torque variable-frequency motor, supporting stepless speed regulation (0.8-8 m/min for hoisting, adjustable based on load weight).
- The crane (longitudinal travel) and trolley (transverse travel) mechanisms use precision gearboxes and rail clamps, ensuring smooth movement and positioning accuracy within ±5mm.
4. Intelligent Control System: Adopts PLC (Contrôleur logique programmable) with a touchscreen HMI (Human-Machine Interface). Operators can monitor real-time data (load weight, travel speed, working hours) and adjust parameters easily. Remote control is optional for scenarios requiring long-distance operation.
5. Entretien facile & Low Downtime: Key components (motors, reducers, bearings) use internationally renowned brands (Par exemple, Siemens, ABB) for reliable performance. The crane is designed with accessible maintenance hatches and lubrication points, simplifying routine inspections and reducing maintenance time.

30 Tons Overhead Crane Technical Specifications

30 Tons Overhead Crane

Parameter Category	Specification Details
Capacité de levage nominale	30 tonnes (main hook); 5-10 tonnes (auxiliary hook, facultatif)
Span Range	10 m – 31.5 m (customizable for special workshops)
Hauteur de levage	6 m – 30 m (customizable based on workshop height)
Vitesse de levage (Main Hook)	0.8 - 8 m / mon (variable frequency, stepless regulation)
Vitesse de levage (Aux Hook)	2 - 16 m / mon (si équipé)
Longitudinal Travel Speed (Grue)	20 - 40 m / mon (variable frequency)
Transverse Travel Speed (Trolley)	10 - 20 m / mon (variable frequency)
Classe ouvrière	A5 – A7 (A5: medium-duty, 1,000 working hours/year; A7: robuste, 4,000 working hours/year)
Alimentation électrique	380V/50Hz/3Ph (customizable for 415V/60Hz for international markets)
Overall Weight	15 - 35 tonnes (varies by span and lifting height)
Motor Power (Hoisting)	18.5 - 37 kw (main hook); 5.5 - 11 kw (auxiliary hook, facultatif)
Motor Power (Longitudinal Travel)	2×7.5 – 2×15 kW (one motor per end beam)
Motor Power (Transverse Travel)	1×3 – 1×7.5 kW

30 Tons Overhead Crane Industry Applications

30 Tons Overhead Crane

Le 30 tons overhead crane is widely used in industries that require heavy-load handling, thanks to its adaptability to different working environments:

1. Fabrication de machinerie lourde: Lifts and assembles large components (Par exemple, engine blocks, bâtis de machines) in workshops for tractors, excavators, or industrial presses.
2. Industrie de l'énergie: Installs and maintains heavy equipment in thermal power plants (Par exemple, boilers, générateurs) and hydropower stations (Par exemple, turbine rotors), ensuring safe and efficient construction.
3. Industrie métallurgique: Transports molten steel ladles, steel coils, or cast iron ingots in steel mills. The crane can be customized with high-temperature resistance (Par exemple, heat-insulated hooks) to withstand harsh environments.
4. Chemical Industry: Moves large chemical reactors, storage tanks, or pressure vessels. It is designed with explosion-proof motors and electrical components to meet safety standards in flammable/explosive areas.
5. Logistique & Entrepôts: Loads and unloads heavy cargo (Par exemple, shipping containers, large machinery parts) in ports, railway yards, or industrial warehouses, streamlining cargo turnover.
6. Industrie du bâtiment: Lifts prefabricated concrete components (Par exemple, poutres, columns) or construction machinery (Par exemple, small cranes) in large-scale building projects, improving on-site construction efficiency.

Difference Between Single-Girder & Double-Girder 30 Tons Overhead Cranes

30 Tons Overhead Crane

While both models handle 30 tonnes, their structural designs and application scenarios differ significantly. The following table compares key aspects:

Comparison Dimension	Single-Girder 30 Tons Overhead Crane	Double-Girder 30 Tons Overhead Crane
Structural Design	Single main beam (I-beam or box beam) supported by end beams.	Two parallel main beams (box beams) connected by crossbeams.
Span Adaptability	Maximum span ≤ 22 m (limited by single-beam load-bearing capacity).	Maximum span ≥ 31.5 m (suitable for large workshops/yards).
Hauteur de levage	En général 6 - 18 m (limited by trolley installation space).	En général 10 - 30 m (more vertical space for trolley movement).
Space Occupancy	Lower headroom (saves workshop height); smaller overall size.	Higher headroom (requires taller workshops); larger footprint.
Operational Stability	Moderate stability (prone to slight beam deflection under heavy loads).	High stability (dual beams distribute load evenly, minimal deflection).
Load Frequency	Suitable for medium-frequency operations (≤ 1,500 cycles/year).	Suitable for high-frequency operations (≥ 3,000 cycles/year).
Cost	Lower initial cost (30% - 50% cheaper than double-girder).	Higher initial cost (but lower long-term maintenance costs for heavy use).
Optional Configurations	Limited (auxiliary hook, remote control only).	Versatile (auxiliary hook, grab bucket, magnet, anti-sway system, etc.).
Ideal Scenarios	Small-to-medium workshops, low-frequency heavy-load handling (Par exemple, small machinery factories).	Large workshops, high-frequency heavy-load handling (Par exemple, aciéries, power plants).

FAQ: 30 Tons Overhead Crane

Q1: What factors should I consider when selecting a 30 tons overhead crane?

A1: Key factors include:

1. Workshop Dimensions: Portée (distance between crane rails) and height (determine lifting height).
2. Working Intensity: Choose the right working class (A5 for medium use, A7 for heavy use).
3. Load Characteristics: Whether the load is regular (Par exemple, steel coils) or irregular (Par exemple, machinery parts) (affects hook type or auxiliary tools).
4. Environmental Conditions: High temperature, humidity, or explosion risks (require customized components like heat-resistant or explosion-proof designs).
5. Local Standards: Compliance with regional safety certifications (Par exemple, CE for Europe, OSHA for the US, GB for China).

Q2: How often does a 30 tons overhead crane require maintenance?

A2: Maintenance follows a three-level schedule:

1. Daily Inspection: Check safety devices (arrêt d'urgence, limit switches), wire rope wear, and oil levels before operation.
2. Monthly Maintenance: Inspect motor temperature, reducer noise, and rail alignment; lubricate moving parts (bearings, gears).
3. Annual Overhaul: Test load capacity (125% rated load test), replace worn parts (wire ropes, brake pads), and verify electrical safety.

Q3: Can the 30 tons overhead crane be customized for special needs?

A3: Yes. Common customizations include:

1. Extended span/lifting height (Par exemple, 35 m span for large workshops).
2. Special hooks (Par exemple, C-hooks for steel coils, magnetic hooks for metal sheets).
3. Explosion-proof/heat-resistant designs (for chemical or metallurgical industries).
4. Automation features (Par exemple, automatic positioning, integration with factory MES systems).

Q4: What safety certifications are mandatory for 30 tons overhead cranes?

A4: Certifications vary by region, but key ones include:

1. International: ISO 4301 (crane safety), CE (EU), OSHA (NOUS), SABS (South Africa).
2. China: GB / T 3811 (crane design standards), TSG Q7015 (special equipment inspection).
3. All cranes must pass load tests (static load: 125% rated capacity; dynamic load: 110% rated capacity) before delivery.

Q5: What is the service life of a 30 tons overhead crane?

A5: Under normal use and proper maintenance, the service life is 10 - 15 années. Key factors affecting life include:

1. Working class (A7 cranes have shorter life than A5 if used identically).
2. Maintenance frequency (regular maintenance extends life by 3 - 5 années).
3. Environmental conditions (corrosive or high-temperature environments reduce life).

Le 30 tons overhead crane combines power, sécurité, and flexibility to meet the diverse needs of heavy-industry material handling. With customizable designs and reliable performance, it is a long-term investment for improving operational efficiency and ensuring workplace safety. For more details on models, quotes, or custom solutions, please contact our technical team.