Stainless Steel Trapezoidal Screw Jacks

Size 407

5 ton - 50 kN

Model XTP

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 40x7 (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	0,6 kg

General features

Operating temperature [°C]	-10 °C / 80 °C
Static load (traction or compression)	80 kN
Dynamic load (traction or compression)	50 kN
Maximum input speed	1800 rpm
Main gearbox weight	18 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]

Motor Models

IEC	Worm screw bore diameter	Centering diameter	Nominal power (4 poles motor)
IEC 71 B5	14 mm	110 mm	0,55 kW
IEC 80 B5 / B14	19 mm	130 mm / 80 mm	1,1 kW
IEC 100-112 B5 / B14	28 mm	180 mm / 110 mm	5 kW
IEC 132 B5 / B14	38 mm	230 mm / 130 mm	9,2 kW