3S Lift - Service Lift

Improved Health & Safety and Faster Maintenance

In addition to being the most efficient and ergonomic method of moving personnel and equipment up a tower, a Service Lift reduces climbing-related injuries and sick leave, thus promoting health and safety.

A Service Lift increases employee satisfaction and motivation while also augmenting employee retention. Reduced technician turnover means lower hiring and training costs. Furthermore, faster maintenance boosts turbine uptime and AEP.

25,000 Installations Worldwide And Nearly 2 Decades of Experience

Available for all turbine types, our Service Lifts fulfill the highest standards in technical quality, reliability, and safety. They also possess all relevant international certifications (e.g. CE, CU-TR, AS/NZS).

3S Lift’s patent-protected technologies are the product of nearly 2 decades of engineering and design experience. We supply most major turbine manufacturers, including Vestas, Siemens-Gamesa, GE Renewable Energy, and every major Chinese OEM.

3S Service Lifts have been installed in over 25,000 wind turbines worldwide.

• Wire Rope-Guided Service Lift : The wire rope-guided Service Lift has two guide wire ropes to prevent swiveling or tilting, in addition to a lifting wire rope and safety wire rope. The guide wire ropes are secured to the suspension beam at the top of the turbine and below the base platform.
• Ladder-Guided Service Lift : The ladder-guided Service Lift travels up and down the guide ladder using two wire ropes for lifting and safety. Normal use of the ladder for climbing is not impaired. This highly reliable system features precisely engineered guide wheels for a particularly smooth ride.
• Large Capacity Ladder-Guided Service Lift : The WindMaster 350 Service Lift has a higher weight capacity and greater storage space than standard Service Lifts. A popular choice for offshore wind turbines, it can accommodate up to 3 passengers and has a rated load of 350 kg.
• Rack and Pinion Ladder-Guided Service Lift : The rack and pinion ladder-guided Service Lift travels up and down the guide ladder using a pinion hoist mechanism. Featuring exceptional reliability and streamlined maintenance routines that boost AEP, this model is particularly suitable for offshore wind turbines.

Fully Independent Lifting and Safety Systems

The wire rope-guided Service Lift has two independent braking mechanisms: through the lifting system (consisting of the lifting wire rope and traction hoist) and through the safety system (consisting of the safety wire rope and SafeLock). Redundant braking systems ensure maximum safety and reliability.

Bottom Sensing Panel

The bottom sensing panel is located under the lift. When coming in contact with an obstacle, the panel is compressed and a sensor is triggered. This immediately stops the lift, preventing impact with the obstacle.

Top Sensing Panel

The top sensing panel is located at the top of the lift. When coming in contact with an obstacle, the panel is compressed and a sensor is triggered. This immediately stops the lift, preventing impact with the obstacle.

Overspeed Protection

The running speed of the Service Lift is continuously monitored. If the preset speed is exceeded, the SafeLock will automatically engage, protecting the lift from falling or running at an unsafe speed.

Mechanical Overload Protection

If the rated load is exceeded, an alarm sounds. Mechanical overload protection prevents the Service Lift from being operated until the load has been reduced.

60,000 Cycle Fatigue Test for Traction Hoist

The Service Lift’s traction hoist has passed 60,000 cycles of fatigue testing.

High-Strength Load Bearing Structure

The Service Lift features a robust structural design that can withstand four times its rated load. Before shipping, each Service Lift undergoes rigorous load-strength testing to guarantee safety and reliability.

Manual Descent

In the event of power failure, the lift can be lowered to the next platform using the manual descent function. The manual descending device is ergonomically designed and easy to operate, ensuring a smooth and even descent. Thanks to the high-precision centrifugal limit controller, the descending speed does not exceed 1.5 times the rated speed, making the manual descent safe and stable.

Escape Exits

The Service Lift is equipped with several escape exits for evacuation in an emergency. Depending on the lift model, personnel can evacuate through the roof, floor, entry door, or a special evacuation panel, thus accommodating any evacuation scenario.

Platform Indicator

When the Service Lift reaches a platform, an indicator lights up inside the lift, allowing the operator to exit safely.

Electromagnetic Door Lock

The electromagnetic door lock keeps the door closed when the lift is in motion and automatically disengages when the lift reaches a platform. Manual override is possible for escape during emergencies.

Mechanical Interlock

The mechanical interlock function is an essential safety feature. It ensures that the guard rail is closed and locked when the lift is in use. The guard rail can be opened using a key that is attached to the cabin, but only when the lift is at a platform. Furthermore, the lift cannot leave the platform until the guard rail has been locked and the key removed. This ensures maximum safety whenever personnel are entering or exiting the lift.

Wire Rope- and Ladder-Guided Lift

• Rated load : 240 kg
• Capacity : 2 persons
• Operation speed : 9, 10.7, 18 m/min
• Operating temperature range : -20°C – +60°C (custom-made low temperature)
• Idle temperature range : -60°C – +75°C
• Rated voltage : 400 V / 690 V, 50 Hz / 60 Hz
• Weight : Wire rope-guided: 200 kg
• Ladder-guided: 220 kg
• Dimensions : 960 x 600 x 2980 mm (L, R)
• 800 x 860 x 2980 mm (L)
• Compliant with standard : EN 2006/42/EC, EN ISO 12100,
• EN 60204-1, EN1808
• Compliant with standard : CE, CU-TR

Rack and Pinion Ladder-Guided Lift

• Rated load : 240 kg–480 kg (custom-made)
• Capacity : 2 persons
• Operation speed : 18 m/min
• Rated voltage : 400 V / 690 V, 50 Hz / 60 Hz
• Weight : 280 kg
• Dimensions : 1090 x 750 x 2570 mm

Large Capacity Ladder-Guided Lift

• Rated load : 350 kg
• Capacity : 3 persons (max)
• Operation speed : 9, 10.7, 18 m/min
• Rated voltage : 400 V / 690 V, 50 Hz / 60 Hz
• Weight : 260 kg
• Dimensions : 950 x 860 x 2980 mm