Trapezoidal screw jack
SJ 250 Mod.B max. 250 kN
SERVOMECH
Travelling nut Tr 80x12
.
Max lifting load [kN] 250
Acme Screw Tr 80x12
Operating duty cicle 30% on 10 min at 25 °C room temperature
Main features :
Ratios RV 1:7
RL 1:28
Starting efficiency RV 0,19
RL 0,12
Running efficiency at 1500 rpm RV 0,35
RL 0,24
Input shaft diameter [mm] 30
Worm gear centre distance [mm] 90
Screw jack's weight without acme screw [kg] 75
Weight every 100 mm additional screw [kg] 3,4
Input speed up to 1.500 rpm.
Standard acme screw Tr 80x12 - 1 start.
On request:
acme screw Tr 80x 24 (P12) - 2 starts;
stainless steel acme screw.
Lubrication: see catalogue.
