Unimec TPR 740 Technopolymer Screw Jack

  • Unimec  TPR 740 Technopolymer Screw Jack

Unimec TPR 740 Technopolymer Screw Jack

Code: TPR 740
Brand: Unimec

Materials

Material Normative Specification Indications
Worm 16NiCr4 EN 10084:2008 Casehardening alloy steel Casehardened and ground on teeth and holds
Threaded spindle C45 EN 10083-2:2006 Carbon steel Tr 40x7 (ISO 2901:2016) - Rolled or machined
Carter Technopolymer Polyarylamide Made by 2 half-shell
Nut Technopolymer Polyarylamide Glass fiber reinforced
Worn wheel Technopolymer Polyarylamide Glass fiber reinforced

General features

Operating temperature [°C] -20 °C / 50 °C
Static load (traction or compression) 30 kN
Dynamic load (traction or compression) 18 kN
Maximum input speed 1800 rpm
Main gearbox weight 3 kg
Trapezoidal screw weight 9 kg/m
Anti-rotation torque at maximum load 165 Nm
Maximum admissible static lateral loads 300 N
Center-to-center diameter 70 mm
Maximum radial load on worm 600 N
Standard working conditions 25 °C - servizio 10%

Specific features

Nominal ratios
1/5 1/10 1/30
Real ratio 1/5 1/10 1/30
Translation per worm revolution 1,4 mm 0,7 mm 0,23 mm
Efficiency 28 % 25 % 18 %
Start-up efficiency 20 % 18 % 13 %
Maximum linear speed 2520 1260 420
Torque at maximum load 40 Nm 23 Nm 11 Nm
Worm screw maximum torque 490 Nm 128 Nm 154 Nm
Idle torque 0,65 Nm 0,45 Nm 0,35 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]

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]

Unimec Datasheets

Country & Language File Name Download Link
United States (English) Unimec-EN_59050.pdf Download
Deutschland (Deutsch) Unimec-DE_13807.pdf Download
Italy (Italiano) Unimec-IT_75906.pdf Download
中国(简体 Unimec-CN_95426.pdf Download

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