Extraction with cranes traditional

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Through this screen you can estimate the productivity and work time unit of the extraction system with traditional cable crane station, under the operating conditions of the batch in question. At calculation procedure you can access through the Scrolling menu of the forestry management, select the fourth item, that is "extraction cranes traditional."

 

tog_minus        Extraction cranes traditional

 

EF_cable_crane_traditional

 

The calculation procedure provides you to enter the following parameters for the calculation of productivity and work time.

Parameters:

Timber volume: sampling, expressed in m3, you can choose values ​​between 10 and 300 (with intervals of 10 units).
Number of log segments for tree: it is a parameter that requires particular attention because from this parameter depends the calculation of the average load per trip, you can choose values ​​between 1 and 10 (with intervals of one unit).
Number of ritti inclinati: you can choose values ​​between 1 and 10 (with intervals of one unit).
Number of profile projects: you can choose values ​​between 1 and 10 (with intervals of one unit).
Number of transfer with winch movement: you can choose values ​​between 1 and 10 (with intervals of one unit).
Number of transfer with without moving the winch: you can choose values ​​between 1 and 10 (with intervals of one unit).
Number of cable lines: you can choose values ​​between 1 and 10 (with intervals of one unit).
Height of skyline cable: you must enter values mediating the data from different points of loading and unloading point, you can choose values ​​between 4 and 22 (with intervals of two units).
Cable crane line length: you can choose values ​​between 50 and 1200 (with intervals of 50 units).
Carriage lift capacity: expressed in kg, you can choose values ​​between 500 and 1500 (with intervals of 50 units).
Winch distance transport: expressed in m, is the distance over which the winch must be hoisted to reach the workplace, you can choose values ​​between 100 and 1200 (with intervals of 100 units).
Number of ritti di estremità seat end of support: you can choose values ​​between 1 and 10 (with intervals of one unit).
Number of vertical poles: you can choose values ​​between 1 and 10 (with intervals of one unit).
Number of cable lines to design: you can choose values ​​between 1 and 10 (with intervals of one unit).
Conditions for Extraction: depending on the type of cut, will choose the distance perpendicular between the line to the loading point and the suspension cable. The evaluation on the operational conditions can also be made on the basis of technical forestry experience using the values ​​proposed as a guideline. You can choose between:
easy: < 10m for liberation cutting and < 15m for clear cutting
medium: 10-20m for liberation cutting and 15-30m for clear cutting
difficult: > 10m for liberation cutting and > 30m for clear cutting
Average tree volume: expressed in m3, you can choose values ​​between 0.5 and 10 (with intervals of one unit).

 

The possibility to calculate productivity and time to work through the button save and result is activated only when all required parameters are entered. If not shown on screen, the data is missing and then you could insert them.

The results are exposed both as a productivity and unit labor time as the overall time for design, installation (mounting and dismounting of the line) and extracting.