QTZ40 Internal Climbing Tower Crane 4 Ton Capacity 47m Boom for High-Rise Construction Projects
The QTZ40 Internal Climbing Tower Crane is engineered for high-rise construction projects, featuring a hydraulic climbing system that operates within building elevator shafts. This internal configuration maximizes working radius and provides superior hoisting capacity compared to external climbing models.
With a maximum hoisting height of 120 meters and a standard mast height of only 26.4 meters, this crane offers significant cost savings in procurement, transportation, and maintenance while climbing seamlessly with building progression.
| Parameter | Specification |
|---|---|
| Model | QTZ40 (4708) Tower Crane |
| Type | Internal Climbing |
| Rated Lifting Moment | 400 KN.M |
| Rated Loading Capacity | 4 Tons |
| Maximum Lifting Load | 4 Tons |
| Tip Load | 0.8 Tons |
| Mast Section Height | 26.4 Meters |
| Span / Boom Length | 47 Meters |
| Working Range | 3 to 47 Meters |
| Slewing Speed | 0.7/0.35 r/min |
| Trolley Speed | 38.6/25.2 m/min |
| Jacking-up Speed | 0.4 m/min |
| Power Supply | 380V/50Hz or custom requirements |
| Power Capacity | 24.9 KW |
| Electric Switch Box | Schneider |
| Hoisting Speed (a=2) | 65.14/32.57/7.0 m/min |
| Hoisting Speed (a=4) | 32.14/15.6/3.5 m/min |
| Mast Section Dimensions | 1.5 × 1.5 × 2.2 Meters |
- High Climbing Capacity for progressive building height adaptation
- Best Economic Benefit with reduced equipment and operational costs
- High Reliability with proven hydraulic climbing system
The innovative center climbing design ensures stable and efficient vertical progression within building structures, providing optimal performance for high-rise construction projects.
- QTZ Topkit/Hammer Head Tower Cranes: 30-75m jib, 4-25t max load
- PT Topless/Flat Top Tower Cranes: 30-80m jib, 4-32t max load
- D Luffing Tower Crane: 25-60m jib, 3-25t max load
- QD Derrick Crane: 3t to 25t capacity for disassembling inner climbing tower cranes
Rack and pinion elevator system designed for construction personnel and material lifting, with capacities from 1000kg to 4000kg and heights up to 200 meters.
Wire rope lift system specialized for material handling in construction sites, with capacities from 1000kg to 2000kg and maximum heights of 60 meters (passenger use not permitted).
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.