A limiter for a Tower Crane is a safety device that is installed to prevent the crane from operating beyond its maximum load capacity or from moving beyond its designated working area. It typically consists of sensors, control systems, and alarms to ensure safe operation.
Hoisting Limiter,Limit Switch for Tower Crane,Load Moment Limiter SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.sytoplesstowercrane.com
General surface support buoys are entensively used in single point mooring (SPMsystem. The three main type are as below:
Material: Swivel assembly: bows to BS970
                Gusets, flanges carbon steel to BS EN10025 Fe 430 A or B
                Central tube to BS 6323 Pt 3 HFS 5
Finish: Swivel assembly hot dip galvanized to BS 729 Zn2/Zn4 at 610 g/m2
Steelwok to be coal tar epoxy painted
Skin Colour: Orange, Yellow and others
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Subsea Buoyancy
Evergreen can make buoyancy material used for subsea up to 7000m. Product of different opplications buoyancys are manufactured upon our advance subsea buoyancy material. We can make subsurface mooring buoys , cable float, pipeline buoys, ROV buoyancy module , special buoys, and other synmatic foam products.
Our high-performance subsea buoyancy material and synmatic foam have the following performance.
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Item
Unit
Value
500m
1000m
1500m
4500m
Density
g/cm³
≤0.4
≤0.45
≤0.5
≤0.6
Compressive Strength
MPa
≥5
≥10
≥15
≥40
Hydrostatic Pressure
MPa
≥5
≥10
≥15
≥37
Water Absorption
%
≤2(5MPa,24h)
≤2(10MPa,24h)
≤2(15MPa,24h)
≤2(40MPa,24h)
Advantage of Evergreen pick- up buoys
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1,Advanced  framework design .
2.Over 20 year's expriences in marine buoys, more improvements are reflected  in production.
3.Durable practical.
4.More flexible,easy installation.
5.Safety and reliability.
6.Economical, Good after service.
7.Variety of end fitting to choose
8.Good technical supports
9.Abrasion resistant tough skin
 
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The load limiter is designed to monitor the load being lifted by the crane and automatically stop the crane's movement if the load exceeds the specified limit. It helps prevent overloading, which can lead to structural failure or accidents.
The radius limiter is used to restrict the crane's movement within a specific working area. It ensures that the crane does not extend beyond its designated radius, preventing it from colliding with nearby structures or obstacles.
Both types of limiters are essential safety features in tower cranes to protect workers, equipment, and the surrounding environment. They help ensure that the tower crane operates within its safe working limits and minimize the risk of accidents or damage.
Suitcase Anchor Pendant Buoy with Closed Cell PE/EVA Foam
Trademark: Evergreen Maritime
Origin: Shandong, China