The SGT Series screw jacks from INKOMA classic are designed for precision and durability, making them suitable for a wide range of applications. Here are the key features and configurations:
Features:
- Precision Worm Gear Set: Ensures smooth operation and high efficiency.
- Robust Housing: Provides durability in demanding environments.
- Integrated Lubrication: Two mechanisms for reliable performance.
- Custom Capacity: Standard capacities from 5kN to 2,000kN; customizable up to 3,500kN.
- Versatile Configurations: Options for machine screws, ball screws, and roller screws based on load requirements.
- Material Options: Available in standard materials or complete stainless steel for corrosion resistance.
- Temperature Range: Operates in extreme temperatures from -50°C to +200°C.
- Safety Features: Includes anti-backlash design, safety nuts, and self-locking spindles.
Configurations:
1. Basic Design:
- GO Configuration (Spindle Above): Spindle moves to transmit linear motion.
- GU Configuration (Spindle Below): Similar function with a different spindle orientation.
2. Running Nut Design:
- LO Configuration (Running Nut, Spindle Above): The nut moves axially for lifting motion.
- LU Configuration (Running Nut, Spindle Below): Similar function with spindle orientation changes.
Product Variants:
1. Machine Screw Jack:
- Capacities: 5kN to 2,000kN.
- Available in upright and inverted designs.
2. Ball Screw Jack:
- Capacities: 10kN to 500kN.
- Features integral safety devices and zero-backlash options.
3. Stainless Steel Screw Jack:
- Capacities: 10kN to 1,000kN.
- Ideal for corrosive environments with completely sealed designs.
Applications:
- Industries: Production equipment, assembly, storage, mechanical handling, food, mining, shipbuilding, and more.
- Environmental Suitability: Custom designs available for extreme mechanical or chemical conditions.
- Customization and Support: The SGT-Series screw jacks can be fully customized by our engineering team to meet specific application requirements. Our technical and sales personnel are available to assist with design and provide support for your needs.
If you have questions or need assistance, please don’t hesitate to reach out!
| Size (SGT) | SGT 5 | SGT 20 | SGT 30 | SGT 50 | SGT 150 | SGT 200 | SGT 300 | SGT 350 | SGT 500 | SGT 750 | SGT 1000 |
| Static lifting force Fmax [kN] | 5 | 20 | 30 | 50 | 150 | 200 | 300 | 350 | 500 | 750 | 1000 |
| Ratio N: Gear ratio i | 10 | 6 | 6 | 6 | 8 | 8 | 10.66 | 10.66 | 10.66 | 10.66 | 12 |
| Ratio N: Lift per worm shaft rotation [mm/rot.] | 0.6 | 1 | 1 | 1.17 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 | 1.67 |
| Ratio N: Overall efficiency ηtot. | 0.21 | 0.26 | 0.24 | 0.23 | 0.20 | 0.20 | 0.19 | 0.18 | 0.15 | 0.14 | 0.13 |
| Ratio L: Gear ratio i | 24 | 24 | 24 | 24 | 24 | 24 | 32 | 32 | 32 | 32 | 36 |
| Ratio L: Lift per worm shaft rotation [mm/rot.] | 0.25 | 0.25 | 0.25 | 0.29 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.56 |
| Ratio L: Overall efficiency ηtot. | 0.12 | 0.14 | 0.13 | 0.12 | 0.13 | 0.13 | 0.11 | 0.11 | 0.09 | 0.08 | 0.08 |
| Input power (S4-20%) Pin. [kW] | 0.18 | 0.51 | 0.6 | 1.1 | 2.8 | 3.9 | 5 | 6.2 | 7.8 | 9.4 | 12.7 |
| max. spindle torque Msp. [Nm] | 9 | 43 | 71 | 151 | 710 | 999 | 2050 | 2572 | 4191 | 7060 | 10995 |
| max. perm. torque at worm shaft Min. [Nm] | 12 | 29 | 48 | 95 | 192 | 283 | 478 | 732 | 862 | 1750 | 2780 |
| Spindle Tr x P [mm] | 20×6 | 26×6 | 30×6 | 40×7 | 60×12 | 65×12 | 90×16 | 100×16 | 120×16 | 140×16 | 160×20 |
| Spindle efficiency ηspindle | 0.51 | 0.44 | 0.40 | 0.37 | 0.40 | 0.38 | 0.37 | 0.35 | 0.30 | 0.27 | 0.29 |
| Lubricant quantity [kg] | 0.1 | 0.2 | 0.2 | 0.3 | 0.5 | 0.7 | 1.0 | 1.8 | 2.0 | 4.0 | 4.0 |
| Mass without spindle [kg] | 1.5 | 8 | 8 | 18 | 28 | 40 | 75 | 91 | 180 | 365 | 545 |
| Mass of spindle per m [kg/m] | 1.76 | 3.22 | 4.44 | 8.13 | 17.94 | 21.4 | 41.13 | 51.78 | 76.76 | 106.7 | 138 |











