Electric retractable anchor-less maintenance unit engineered for large megawatt wind turbine blade maintenance; enables vertical lifting, horizontal extension and multi-angle transposition to reach service points without tower anchoring.
Compact, stable structure designed for easy transfer and transport to improve on-site safety and maintenance efficiency.
Manufacturer with over a decade of experience in suspension proximity equipment, owning independent IP and multiple international certifications and test reports.
On-site assembly guidance, lifting training and documented work procedures available from manufacturer.
Key features
Automatic leveling system with anti-tilt function for stable operation.
Horizontal extension range: 1–18 m; horizontal swing maintenance range: ±15°.
Flexible work platform allowing 360° omnidirectional displacement around the blade.
Designed for overall transportation without disassembly for rapid site transfer.
Product details
Electric drive support system: extension/contraction range 1–18 m to access any blade position, reducing manpower and materials.
Three sets of sponge wall rollers: protect the blade surface and ensure platform adhesion during operations.
Tower clamping device: expands and clamps the tower tube at the required position to stabilize the platform during horizontal displacement.
Configured for lifting, horizontal expansion and multi-angle transposition maintenance close to the blade; supports safe, stable operation and convenient transport.
Specifications (SOFIT-Z3)
Model: SOFIT-Z3
Brand: 3S Lift
Function: Blade maintenance platform for large megawatt wind turbine blades; anchor-less electric retractable drive support system
Rated weight (platform): 350 Kg
Platform dimensions: 5.8 m × 2 m × 2.7 m
Travel speed: 9 m/min
Horizontal extension length: 1–18 m (customizable)
Horizontal swing maintenance range: ±15°
Wire rope diameter: 9.1 mm (Min. breaking tension: 62 kN)
Lifting point load: > 17,500 N
SafeLock model: SL3 (3 sets)
Lifting hoist: Model C700 (3 units); rated lifting force 700 kg
Rated power examples: 1.8 kW / 7 kW (400 V) depending on configuration; other variants available
Self-weight example: SOFIT-Z3 unit 1300 kg
Capacity: typical example 3 people
Protection: three sets of sponge wall rollers to protect blade
Tower clamping device for platform stabilization during horizontal displacement
Transport: designed for overall transportation without disassembly
Compliance: CE where indicated
Other model specifications shown on page
SOFIT-11 — Rated load: 240 Kg; Speed: 9 m/min; Rated power: 1.5 kW; Self-weight: 200 Kg; Power supply: 400 V/690 V 3-phase; Dimensions: 1.5 × 0.7 × 1.1 m
SOFIT-W3 — Rated load: 600 Kg; Speed: 9 m/min; Rated power: 5.4 kW; Self-weight: 800 Kg; Power supply: 400 V/690 V; Outside/Inside dims example: Outside 5.2 × 3.7 m / Inside 3.6 × 1.2 m (customizable); CE compliant
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.