Reliable Flow Control with Corrosion-Resistant Lead Screws
Sluice gates are used in water control structures such as weirs, locks, and hydroelectric power plants. They allow water flow to be selectively shut off. The drive components used in these applications must operate reliably under harsh environmental conditions and withstand high mechanical loads.
For these applications, GROB manufactures custom trapezoidal lead screws with a particular focus on self-locking capability and corrosion resistance.
Secure Position Holding Through Self-Locking
For sluice gates, it's essential that the selected position is held reliably. Unintended movement could compromise the safe operation of the entire system.
This is why the self-locking capability of the trapezoidal lead screw drive plays a key role. It prevents the screw from rotating backward under load. This allows the gate to remain in position even when the drive is at a standstill, without requiring the motor to run continuously.
The approximately 5-meter-long Trapezoidal Spindle
Corrosion Resistance for Demanding Environments
Moisture and exposure to water place high demands on the materials used in drive components. Depending on the installation site, additional environmental factors may also need to be considered.
For these applications, trapezoidal lead screws can be manufactured from corrosion-resistant specialty stainless steel, such as grade 1.4404. This makes them suitable for applications requiring a high level of resistance to corrosive environments.
Custom Engineering and Manufacturing
Sluice gates in hydraulic steel structures require relatively long trapezoidal lead screws. Depending on the application, designs with diameters of 70 or 80 mm and lengths of approximately 2.5 to 4 meters may be used.
The screws are custom-manufactured according to customer drawings. The threads are produced using thread whirling, a manufacturing process that enables precise thread profiles even on long screws.
Example of a technical specification:
- Type: Trapezoidal lead screw TR80×10
- Diameter: 80 mm
- Lead: 10 mm
- Overall length: 2,550 mm
- Threaded length: 2,450 mm
- Thread direction: Left-hand (LH)
- Manufacturing process: Thread whirling
GROB manufactures trapezoidal lead screws to meet the specific design requirements of each application. Large dimensions, long threaded sections, and specialized thread configurations can also be accommodated on a project-specific basis.
Reliable Drive Technology for Hydraulic Steel Structures
When water flow must be shut off reliably, robust and dependable components are essential. Self-locking trapezoidal lead screws made from corrosion-resistant stainless steel help maintain the precise positioning of sluice gates and are designed for demanding operating conditions.
The GROB solution: Custom-manufactured trapezoidal lead screws designed for long service life, providing safe and precise sluice gate movement for reliable water flow control.
