Agrifirst Manual Roll-Up Unit NSA 105 is a mechanical hand-crank system for rolling up greenhouse side curtains to control ventilation. By turning the handle, operators can smoothly raise or lower the curtain to any desired height — providing infinitely adjustable airflow control without requiring electricity, controllers, or motors.
Key Features
- Geared Mechanism — Multiplies hand force for effortless curtain raising, even on long runs
- Precise Control — Stop at any opening height for exact ventilation level
- No Electricity — Fully mechanical — works during power outages
- Self-Locking — Curtain stays at set position without holding the handle
- Durable Construction — Corrosion-resistant materials for greenhouse environments
Technical Specifications
| Type | Manual hand-crank geared roll-up |
| Model | NSA 105 |
| Max Curtain Length | Up to 50 meters per unit |
| Pipe Diameter | Fits standard 42mm / 48mm GI pipe |
| Material | Corrosion-resistant alloy |
| Self-Locking | Yes |
