Code: TP-09010 B RAPP:1/30
Marke: 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 100x12 (ISO 2901:2016) - Rolled or machined |
Carter |
GJL 250 |
EN 1561:2011 |
Grey cast iron |
Completely machined on 6 faces |
Lubricant |
Unimec Mark CA |
|
Calcium based grease |
2,3 kg |
General features
Operating temperature [°C] |
-10 °C / 80 °C |
Static load (traction or compression) |
500 kN |
Dynamic load (traction or compression) |
350 kN |
Maximum input speed |
1800 rpm |
Main gearbox weight |
110 kg |
Trapezoidal screw weight |
56 kg/m |
Anti-rotation torque at maximum load |
2650 Nm |
Maximum admissible static lateral loads |
8 kN |
Center-to-center diameter |
110 mm |
Maximum radial load on worm |
1 kN |
Standard working conditions |
25 °C - servizio 10% |
Specific features
|
Nominal ratios |
|
1/10 |
1/30 |
Real ratio |
1/10 |
1/30 |
Translation per worm revolution |
1,2 mm |
0,4 mm |
Efficiency |
18 % |
12 % |
Start-up efficiency |
12 % |
8 % |
Maximum linear speed |
1800 |
720 |
Torque at maximum load |
370 Nm |
185 Nm |
Worm screw maximum torque |
2000 Nm |
2000 Nm |
Idle torque |
3,25 Nm |
2,3 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/9010/max800_Eulero_9010.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/9010/max800_9010-1_10.jpg\")
![](\"https://www.unimec.eu/images/MAR-PROD/9010/max800_9010-1_30.jpg\")
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