Swaged Loop Galvanized Steel Cable
The Swaged Loop Galvanized Steel Cable is a high-quality and reliable solution designed specifically for boat lift applications. It is a 7 x 19 strand aircraft cable that offers exceptional strength, durability, and moderate corrosion resistance. This cable is factory-cut and swaged, ensuring a secure and permanent connection that exceeds the rated breaking strength of the wire rope when properly applied.
One of the key features of this cable is its flexibility. The 7 x 19 construction, which refers to seven strands with 19 wires in each strand, makes it the most flexible aircraft cable available. This flexibility allows the cable to easily navigate through sheaves and cable winders without losing its ductility over long periods of use. It is important to note that while this cable is suitable for boat lift applications, it should not be used for aircraft controls or for lifting humans.
When selecting wire rope for boat lift applications, it is crucial to consider the safe working load (SWL) rather than the breaking strength. The breaking strength simply indicates the maximum force a brand-new wire rope can withstand before snapping. However, in real-world applications, wire ropes function as systems that include various components and factors that can affect their strength. The SWL incorporates a safety factor recommended by the American Society for Mechanical Engineers (ASME) to account for these factors, ensuring the lift can safely hold the load even under adverse conditions.
To determine the appropriate size of wire rope for your boat lift, several factors need to be considered. These factors include the total weight to be lifted, which includes the wet weight of the boat (including fuel, water, and any cargo items), as well as the weight of the lifting cradle and bunks. BH-USA recommends considering at least a 5:1 safety factor when calculating the working loads and using a minimum of 4 drops for boat lift applications.
The Swaged Loop Galvanized Steel Cable is specifically recommended for freshwater applications. If you require a cable for saltwater environments, stainless steel cable is the preferred choice due to its superior corrosion resistance. It is essential to regularly inspect wire ropes and cables for any signs of deterioration that could compromise their strength. Lubricating the operating ropes regularly and avoiding shock loads can help extend the lifespan of the cable.
BH-USA takes pride in providing high-quality products, and each cable sold by BH-USA comes with a test certificate, which can be requested upon purchase. However, it is important to note that due to the unpredictable and varying conditions in which the cable is used after purchase, BH-USA cannot provide a warranty or be held liable for the cable beyond the purchase date. The ultimate responsibility lies with the user to determine the working load limit for each application based on various factors such as loads applied, speed of operation, acceleration or deceleration, and the condition of the cable.
In conclusion, the Swaged Loop Galvanized Steel Cable is an excellent choice for boat lift applications. Its 7 x 19 construction provides superior flexibility, while its galvanized steel composition offers moderate corrosion resistance and long-lasting ductility. With the appropriate safety factors and regular inspections, this cable ensures the safe and reliable lifting of boats in freshwater environments. BH-USA recommends following industry standards and guidelines for proper use and maintenance, and always prioritizing safety when working with wire ropes and cables.
|Lift Size||1 Part Straight Line||2 Part Compounded|
|2,800 lbs.||3/16 in.||3/16 in.|
|4,500 lbs.||1/4 in.||3/16 in.|
|6,000 lbs.||5/16 in.||1/4 in.|
|9,000 lbs.||X||1/4 in.|
|10,000 lbs.||X||1/4 in.|
|13,000 lbs.||X||5/16 in.|
|16,000 lbs.||X||3/8 in.|
|24,000 lbs.||X||3/8 in.*|
The first step in deciding what size wire rope is required for your lift is to determine the total weight to be lifted which will include the “wet” weight of the boat, the maximum estimated cargo that could be put in the boat during the lift, and the weight of the lifting cradle
- Water (Ballast, live well, potable, etc.)
- Any cargo items in the boat (Note: There should never be people in the boat while being lifted.)
- Boat cradle and bunks
The boat weight specified by a manufacturer is typically the “dry” weight of the boat. To get the “wet” weight, you must include the weight of the fuel (gasoline is 6.30 lb/US gal and diesel is 6.94 lb/US gal), the weight of any water (8.34 lb/US gal) that may ever be present in the boat and the estimated weight of the possible cargo (ie – coolers, skis, etc.).
|Cable Size||Cable Material||Lifting Capacity||Min. Breaking Strength||Safe Working Limit||Best Water Type|
|3/16 in.||Stainless||1,050 lbs. *||3,700 lbs.||925 lbs.||Saltwater|
|3/16 in.||Galvanized||925 lbs. *||4,200 lbs.||1,050 lbs.||Freshwater|
|1/4 in.||Stainless||1,750 lbs. *||6,400 lbs.||1,600 lbs.||Saltwater|
|1/4 in.||Galvanized||1,600 lbs. *||7,000 lbs.||1,750 lbs.||Freshwater|
|5/16 in.||Stainless||2,450 lbs. *||9,000 lbs.||2,250 lbs.||Saltwater|
|5/16 in.||Galvanized||2,250 lbs. *||9,800 lbs.||2,450 lbs.||Freshwater|
|3/8 in.||Stainless||3,600 lbs. *||12,000 lbs.||3,000 lbs.||Saltwater|
|3/8 in.||Galvanized||3,000 lbs. *||14,400 lbs.||3,600 lbs.||Freshwater|
* – Use a minimum of 4 drops for boat lift applications
NOT FOR LIFTING HUMANS
No product can operate indefinitely at its rated capacity. Wire rope and Cable must be inspected regularly for any deterioration which may result in the loss of original strength. Users must determine whether further use of the rope would constitute a safety hazard to life or property. Lubricate operating ropes regularly. Keep out from under any raised loads and keep out of the line of force of any load.
AVOID SHOCK LOADS.
Due to the uncontrollable situations in which this cable is used after the purchase, BH-USA cannot warranty or be held liable for cable past the purchase date. It is the responsibility of the ultimate user to determine a working load limit for each application. Many factors should be considered: included among, but not limited to, loads applied, speed of operation, acceleration or deceleration, length of rope or cable, shock loads, abrasion, corrosion, number, size, condition, and location of drums and sheaves, facilities for inspection, and the danger to life and property should a rope or cable break. Wire Ropes and Cables must be stored, used, lubricated, and maintained in accordance with normal safety standards; and must be properly designed, maintained, and operated. Inspect regularly.
Do not kink, knot, or crush. Do not ever use wire rope sold by or made by BH-USA to lift humans in any way.
- Swaged Loop Galvanized Steel Cable for boat lift applications
- 7 x 19 strand aircraft cable for flexibility
- Moderate corrosion resistance for freshwater use
- Factory-cut and swaged for secure connections
- Follow ASME safety factor recommendations
- Not suitable for aircraft controls or lifting humans
- Consider working loads, not breaking strength
- Regular inspection and maintenance for optimal performance