SJ 50 Mod.A
Travelling screw Tr 40x7
Standard performances screw jack. Lifelong grease lubricant for worm gear. Compact monoblock housing in cast iron, cubic design for high static load capacity. Tapped mounting holes, top and bottom, alternative through holes. Duty cycle up to 20% per hour at 25 °C room temperature. Acme screw 1 or 2 starts made of steel C43. Nut made of bronze GCuSn12. Acme screw and nut machined with advanced technology CNC machines with high accuracy. Protective painting blue color RAL 5010.
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Max lifting load [kN] 50
Acme Screw Tr 40x7
Operating duty cicle 30% on 10 min at 25 °C room temperature
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Main features :
Ratios RV 1:7
RN 1:14
RL 1:28
Starting efficiency RV 0,18
RN 0,15
RL 0,11
Running efficiency at 1500 rpm RV 0,32
RN 0,28
RL 0,23
Input shaft diameter [mm] 24
Worm gear centre distance [mm] 63
Screw jack's weight without acme screw [kg] 25
Weight every 100 mm additional screw [kg] 0,8
Input speed up to 1.500 rpm.
Standard acme screw Tr 40x7 1 start.
On request:
acme screw Tr 40x7 P14 2 starts;
stainless steel acme screw.
Lubrication: see catalogue.
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Input versions
Single input shaft;
double input shaft;
standard motor flange IEC 80 B5;
motor flange adapter IEC 90 B5, IEC 90 B14, IEC 100/112 B5 or IEC 100/112 B14;
motor flange or motor flange adapter + second input shaft.
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Accessories :
Protective tube.
Bellows.
Acme screw end: flange, threaded, hinged head.
Stroke end switches.
Safety bronze nut.
Anti-turn device.
Trunnion mounting.
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Data Sheet |