Unimec XTP 204 Stainless Steel Trapezoidal Screw
Unimec XTP 204 Stainless Steel Trapezoidal Screw
Code: XTP 204
Marque: Unimec
Materials
Material | Normative | Specification | Indications | |
---|---|---|---|---|
Worm | 16NiCr4 | EN 10084:2008 | Casehardening alloy steel | Casehardened and ground on teeth and holds |
Worn wheel | CuAl10Fe2-GM | EN 1982:2008 | Alluminium bronze | Chill molded |
Threaded spindle | X5 CrNiMo 17-12-2 (AISI 316) | EN 10088-1:2014 | Stainless steel | Tr 20x4 (ISO 2901:2016) cutting |
Carter | X5 CrNiMo 17-12-2 (AISI 316) | EN 10088-1:2014 | Stainless steel | Completely machined on 6 faces |
Lubricant | Unimec Mark CA | Calcium based grease | 0,1 kg |
General features
Operating temperature [°C] | -10 °C / 80 °C |
---|---|
Static load (traction or compression) | 15 kN |
Dynamic load (traction or compression) | 10 kN |
Maximum input speed | 1800 rpm |
Main gearbox weight | 6 kg |
Trapezoidal screw weight | 2,2 kg/m |
Anti-rotation torque at maximum load | 17 Nm |
Maximum admissible static lateral loads | 0 N |
Center-to-center diameter | 30 mm |
Maximum radial load on worm | 220 N |
Standard working conditions | 25 °C - servizio 10% |
Specific features
Nominal ratios | |||
---|---|---|---|
1/5 | 1/10 | 1/30 | |
Real ratio | 1/4,75 | 1/10,5 | 1/30 |
Translation per worm revolution | 0,842 mm | 0,38 mm | 0,13 mm |
Efficiency | 31 % | 28 % | 20 % |
Start-up efficiency | 22 % | 19 % | 14 % |
Maximum linear speed | 1440 | 720 | 240 |
Torque at maximum load | 4,2 Nm | 2,3 Nm | 1,1 Nm |
Worm screw maximum torque | 54 Nm | 54 Nm | 42 Nm |
Idle torque | 0,25 Nm | 0,2 Nm | 0,15 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/204/max800_eulero_204.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/204/max800_204-1_5.jpg)
![](https://www.unimec.eu/images/MAR-PROD/204/max800_204-1_10.jpg)
![](https://www.unimec.eu/images/MAR-PROD/204/max800_204-1_30.jpg)
Unimec Fiches techniques
Pays et langue | Nom du fichier | Lien de téléchargement |
Unimec-EN_59050.pdf | Télécharger | |
Unimec-DE_13807.pdf | Télécharger | |
Unimec-IT_75906.pdf | Télécharger | |
Unimec-CN_95426.pdf | Télécharger |
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