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| Categories | Topkit Tower Crane QTZ40 Series | 
|---|---|
| Place of Origin: | Shandong, China | 
| Brand Name: | Katop | 
| Certification: | CE, ISO9001 | 
| Model Number: | QTZ40-4808 | 
| the lifting speed:: | 72/36 m/min(2 fall) / 17.5/35m/min(4 fall) | 
| the slewing speed:: | 0.73/0.37 m/min | 
| the trolleying speed:: | 39/26 m/min | 
| the climbing speed:: | 0.4 m/min | 
| the free standing height:: | 29m | 
| the main chord:: | 160*160*12(mm) | 
| the mast section:: | 1.5*1.5*2.2(m) | 
| the color:: | any color you want | 
| MOQ: | 1 UNIT | 
| Packaging Details: | Nude packed, well fixed, uninstalled | 
| Delivery Time: | About 30-50workdays after receipt the deposit | 
| Payment Terms: | 30%TT in deposit, the balance 70%TT before shipment or by LC at sight | 
| Supply Ability: | 60units/month | 
easy operation 1T- 4T 48m jib JT4808 building tower crane uses
Specifications
1. Lifting height 29 m, loading capacity 4t, long jib length 40 m
2.Factory supply, low price
3.Installation support
4.Good after-sales service
Features
1.double boom rigid rod suspension, rigid, light weight, small cross-section, small wind resistance, even by force, beautiful appearance.
2.kinds of safety devices is complete, ensure safe and reliable.
3. independent of side cab, good vision, to the operator to create a good working environment.
4.easy to use and simple maintenance.
Main Technical Parameters of KATOP JT40 (4808) Tower Crane
| Item | Unit | Independent type | Attached type | Multiplying power | |
| α=2 | α=4 | ||||
| Rated lifting moment | KN.m | 400 | |||
| Max lifting weight | t | 2 | 4 | ||
| Max Working range | m | 48 | |||
| Min Working range | m | 3 | |||
| Lifting weight at max range | t | 0.8 | |||
| Telescoping speed | m/min | 0.4 | |||
| Range of max lifting weight | m | 20.97 | 10.96 | ||
| Lifting speed | m/min | 72/36 | 17.5/35 | ||
| Lifting height | m | 29 | 120 | 60 | |
| Rotating speed | m/min | 0.73/0.37 | |||
| Motor total power | KW | 25.82 | |||
| luffing speed | m/min | 39/26 | |||
| counterweight | f | 8.22 | |||
| Whole machine dead weight | t | 21.46 (exclusive of counterweight) | Independent height | ||

The slewing mechanism specification
| Slewing mechanism | Slewing speed | Motor model | Power | Motor rotating speed | 
| 0.73/0.37r/min | (QTH80.1)YZR132M | 6-3.7Kw | 960(rpm) | 
The trolleying mechanism specification
| Trolley mechanism | Trolleying speed | Motor model | Power | Motor rotating speed | 
| 39/26 m/min | YEZS100L-4/6 | 2.2/1.5 Kw | 1380(rpm) | 

The lifting mechanism specification
| Lifting speed | Fall | a=2 | a=4 | ||
| Loading capacity (t) | 2 | 4 | 4 | 2 | |
| Lifting speed (m/s) | 72 | 17.5 | 35 | 36 | |
| Motor model/power/motor rotation speed | YZTD200L-4/8/24 | 15/15/4 Kw | 1385/680/195(rpm) | ||
The jacking mechanism specification
| Jacking mechanism | Jacking speed | Motor model | Power | Motor rotating speed | 
| m/min | kw | r/min | ||
| Work pressure | Mpa | |||



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