Trapezoidal Screw Jacks
Size 8010
25 ton - 250 kN
Model TPR
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 |
| Nut | CuAl10Fe2-GM | EN 1982:2008 | Alluminium bronze | Chill molded |
| Threaded spindle | C45 | EN 10083-2:2006 | Carbon steel | Tr 80x10 (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 kg |
General features
| Static load (traction or compression) | 350 kN |
|---|---|
| Dynamic load (traction or compression) | 250 kN |
| Maximum input speed | 1800 rpm |
| Main gearbox weight | 62 kg |
| Trapezoidal screw weight | 37 kg/m |
| Anti-rotation torque at maximum load | 1530 Nm |
| Maximum admissible static lateral loads | 4 kN |
| Center-to-center diameter | 90 mm |
| Maximum radial load on worm | 900 N |
| Standard working conditions | 25 °C - servizio 10% |
Specific features
| Nominal ratios | |||
|---|---|---|---|
| 1/5 | 1/10 | 1/30 | |
| Real ratio | 1/5,2 | 1/9,67 | 1/30 |
| Translation per worm revolution | 1,92 mm | 1,03 mm | 0,33 mm |
| Efficiency | 22 % | 20 % | 14 % |
| Start-up efficiency | 14 % | 13 % | 9 % |
| Maximum linear speed | 2000 | 1500 | 600 |
| Torque at maximum load | 360 Nm | 200 Nm | 95 Nm |
| Worm screw maximum torque | 850 Nm | 850 Nm | 490 Nm |
| Idle torque | 3,5 Nm | 2,7 Nm | 1,95 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 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 | |
|
IEC 160 B5 / B14 | 42 mm | 250 mm / 180 mm | 15 kW |
| IEC 180 B5 | 48 mm | 250 mm | 22 kW |
Construction forms
Forma S
Forma B
Forma D
Forma MBD
Forma MD
Forma MS
Forma MBS
Specific accessories
The accessories avaiable for this product are reported below
Safety
CS-TPR Manual Wear Control Safety Nut
CAPP Worm Screw Protection Cover
CSU-TPR Automatic Wear Control Safety Nut
CT Temperature Control
CTC Nut Temperature Control
PE Elastic Bellow Protection
Assembly
SP Mounting Plates
TPN Trapezoidal Thread End-Fitting
TC Low Non-Threaded End-Fitting
AB Worm Screw Protection Ring
CHA Self-Aligning Nut
P Lateral Pins
FP Thruholes
FD Quick-Disconnect System
DA Dual-Action
TSC Bearing-Support End-Fitting
Protection
AB Worm Screw Protection Ring
CAPP Worm Screw Protection Cover
PE Elastic Bellow Protection
Oscillating Configurations
CHA Self-Aligning Nut
P Lateral Pins
Control & Monitoring
CR Rotation Control Device
CSU-TPR Automatic Wear Control Safety Nut
CT Temperature Control
CTC Nut Temperature Control
RG-TPR Axial Play Compensation Nut
High Temperatures
GV Viton Seals
LUBS Special Lubricants
VE Epoxy Painting
PE Elastic Bellow Protection
Food & Drug
NLY Niploy-Coating Treatment
LUBS Special Lubricants
PE Elastic Bellow Protection
Anti-Corrosion
NLY Niploy-Coating Treatment
VE Epoxy Painting
Lubrication
LUBS Special Lubricants
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