Conveying capacity: 7000 dm3/h
Length/width/height: 175 m/ 22 m / 40 m
Maximum height of stacking: 26 m
Weight: 1600 t
Installed power: 3050 KW
The Z7000-90 stacker is used to stack crushed overburden to a dump.
The stacker consists of a substructure (steel structure connecting three crawler twins of the undercarriage). The slewing superstructure with the tower and the counterweight boom with a counterweight are mounted on the substructure. A discharge boom equipped with a belt conveyor is hinged on the superstructure.
A hinge joint of the connecting bridge is realized at the superstructure level, in suspension of the counterweight boom. This steel structure is supported at another end with a supporting car. The connecting bridge is equipped with a belt conveyor with a charging hopper at the lower end. Material from the preceding technology (e.g. long-distance belt conveyors) is received at this place and further conveyed to a conveyor of the discharge boom. The supporting car consists of a crawler undercarriage, a small substructure and a swivel plate. The connecting bridge is just mounted on this plate.
– The slewing range of the superstructure against the substructure is realized by electromechanical drives.
– Tilting of the discharge boom is realized by means of a hoist and a pair of electromechanical cable winches.
Main parameters of machine
| Weight in running order | 1,600 | t |
| Theoretical conveying capacity of machine | 7,000 | m3 |
| Length of discharge boom * | 90 | m |
| Length of connecting bridge * | 80 | m |
| Slewing range of discharge boom against connecting bridge | +-110 | ° |
| Slewing speed of discharge boom top | 20 | m/min |
| Lifting speed of discharge boom top | 2 | m/min |
| Maximum height of stacking | 26 | m |
| Maximum difference in height of undercarriage positions | +-4 | m |
| Specific pressure on surface for travelling | 77 | MPa |
| Travel speed | 2.5-10 | m/min |
| Ball way diameter | 9.2 | m |
| Installed power in total | 3,050 | kW |
* Distance between slewing axis of the machine superstructure and axis of a reversing drum of the belt conveyor.
| Weight in running order | 15 | m |
| A – Minimum offset ** | 7,000 | m3 |
| B – Maximum distance of stacking | 110 | m |
| H – Reach of discharge boom | 25 | m |
| h – Height of supporting car position level | +-4 | m |
** Depending on base load-bearing capacity
