Unimec TP 20018 Trapezoidal Screw Jack Render
Unimec TP 20018 Trapezoidal Screw Jack Render
Código: TP 20018
Marca: Unimec
Materials
Material | Normative | Specification | Indications | |
---|---|---|---|---|
Worm | 16NiCr4 | EN 10084:2008 | Casehardening alloy steel | Casehardened and ground on teeth and holds |
Worn wheel | CuAl10Fe2-GZ | EN 1982:2008 | Alluminium bronze | Centrifuged |
Threaded spindle | C45 | EN 10083-2:2006 | Carbon steel | Tr 200x18 (ISO 2901:2016) - Rolled or machined |
Carter | S235 J0 | EN 10025-2:2005 | Welded carbon steel | Completely machined on 6 faces |
Lubricant | Unimec Mark CA | Calcium based grease | 28 kg |
General features
Operating temperature [°C] | -10 °C / 80 °C |
---|---|
Static load (traction or compression) | 2500 kN |
Dynamic load (traction or compression) | 1500 kN |
Maximum input speed | 1800 rpm |
Main gearbox weight | 1200 kg |
Trapezoidal screw weight | 220 kg/m |
Anti-rotation torque at maximum load | 21500 Nm |
Maximum admissible static lateral loads | 45 kN |
Center-to-center diameter | 250 mm |
Maximum radial load on worm | 3,8 kN |
Standard working conditions | 25 °C - servizio 10% |
Specific features
Nominal ratios | ||
---|---|---|
1/12 | 1/36 | |
Real ratio | 1/12 | 1/36 |
Translation per worm revolution | 1,5 mm | 0,5 mm |
Efficiency | 14 % | 9 % |
Start-up efficiency | 8 % | 5 % |
Maximum linear speed | 1500 | 900 |
Torque at maximum load | 2400 Nm | 950 Nm |
Worm screw maximum torque | 28500 Nm | 28500 Nm |
Idle torque | 12 Nm | 8 Nm |
Euler's law (safety factor =2; dynamic compression load)
Limit Load 1 (red) - 2 (blue) - 3 (green)
C = Load [kN]
L = Overall trapezoidal screw length [mm]
![](https://www.unimec.eu/images/MAR-PROD/20018/max800_Eulero_20018.jpg)
![](https://www.unimec.eu/images/MAR-PROD/Eulero/max800_Eulero_1.jpg)
![](https://www.unimec.eu/images/MAR-PROD/Eulero/max800_Eulero_2-.jpg)
![](https://www.unimec.eu/images/MAR-PROD/Eulero/max800_Eulero_3-.jpg)
Power curves
The magenta zone indicates a potential heating risk. Working cycles must be carefully analized.
VR = Worm rotational speed [rpm]
VL = Spindle translation speed [mm/min]
P = Requested input power [kW]
![](https://www.unimec.eu/images/MAR-PROD/20018/max800_20018-1_12.jpg)
![](https://www.unimec.eu/images/MAR-PROD/20018/max800_20018-1_36.jpg)
Construction forms
![](https://www.unimec.eu/images/MAR-PROD/20018/max800_TP-20018-S.jpg)
Forma S
![](https://www.unimec.eu/images/MAR-PROD/20018/max800_TP-20018-B.jpg)
Forma B
![](https://www.unimec.eu/images/MAR-PROD/20018/max800_TP-20018-D.jpg)
Forma D
Unimec Datasheets
País e idioma | Nome do arquivo | Link de download |
Unimec-EN_59050.pdf | Download | |
Unimec-DE_13807.pdf | Download | |
Unimec-IT_75906.pdf | Download | |
Unimec-CN_95426.pdf | Download |
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