Product Features

Precision Screw Drive Mechanism
A robust stainless steel screw drive converts rotary motion into smooth vertical lifting, delivering exceptional positional accuracy and stable operation even for heavy sash panels.

High Load Capacity for Large Sashes
The screw drive system inherently supports greater weight than belt or chain drives, making it ideal for oversized windows, commercial storefronts, and high-traffic applications.

Self-Locking for Enhanced Safety
The screw mechanism naturally holds its position without a separate brake, preventing unintended downward drift or falling even during power loss.

Smooth Silent Electric Operation
Precision-ground screw with anti-backlash nut and sealed lubrication ensures whisper-quiet, vibration-free lifting and lowering, ideal for noise-sensitive environments.

Reliable Compression Sealing When Closed
At the fully closed position, the screw drive maintains constant downward force to activate multi-point compression seals, delivering superior airtightness, water resistance, and sound insulation.