Ratchet straps (also called ratchet tie down, lashing straps or tie downs) are fasteners used to hold down cargo or equipment during transport. Ratchet straps are essentially webbing that is outfitted with tie down hardware. This hardware allows the ratchet strap to attach to the area surrounding the cargo or equipment, loop over the cargo or equipment, and/or attach to the cargo or equipment. It usually also includes a method of tensioning the strap, such as a ratchet.
When we use the ratchet strap , maybe we will meet the ratchet strap jammed. So we need to know why it jammed and how to release the jammed ratchet strap. How Ratchet Straps Jam and Get Stuck There are three reasons for ratchet straps jam or get stuck Not disengaging the ratchet all the way: The gear stays locked in place until you unlock it. Winding too much strap on the spool: This requires a little muscle and finesse to unjam. Needs a little lube: Happens with ratchet straps that don't work smoothly from being outside. How to solve these problems? 1) Ratchet Strap Isn't Fully Disengaged and Won't Release When the ratchet is fully closed it's locked into place and both pawls are engaged. When it is partially open both pawls are mostly engaged. You need to get the ratchet fully open in order for it to release. You do this by disengaging the two pawls. First, you need to squeeze the little handle to disengage the manual pawls.
What is the STF-Standard Tension Force? The abbreviation STF “Standard Tension Force” stands for the pre-tensioning force also called “Normal Tensioning Force”, which describes the force of the lashing strap. Put simply, with an STF value of 350 daN: you pull or push on a ratchet lever with exactly 50 daN (SHF) and can lift/move a weight of 350 kg with this force. The main reason for high pre-tensioning forces are the high-quality products, in this case, the ratchet and the lashing strap, which have been optimized for your application. The STF value to be achieved is defined by the European standardization: STF = min. 0.1 x LC and max. 0.5 x LC All products in our assortment of cargo safety are tested according to DIN EN 12195-2. STF – Standard Tension Force according to DIN EN 12195-2, always applies to a lashing belt system (ratchet, webbing and end fittings). The webbing, its length, composition, elongation, sewing and material thickness have a very large influence on the STF value
ratchet buckles What is the ratchet buckle ? A ratchet buckle is a mechanical device used for securing, tightening, and fastening objects. It consists of a mechanism that allows incremental adjustments in tension and a locking feature to hold the desired tension in place. What are the surface treatments of ratchet strap buckles ? Yellow electric galvanized White electric galvanized Black finish Chrome finish How many handle types are available for ratchet tie-down buckles ? Plastic handle Aluminum handle steel handle rubber coated handle chrome handle What sizes are available for webbing buckles ? 1" 25mm---BS 800kg or 1000kg 1.5" 35mm---BS 2000kg or 3000kg 2" 50mm---BS 2000kg or 3000kg or 4000kg or 5000kg 3" 75mm---BS10000kg 4" 100mm---BS10000kg The instructions for ratcheting buckles ? How to use the cargo strap buckles ? ( How to fasten and release Adjustable lashing buckles ?) Prepare the Strap: Make sure you have a suitable strap with a ratchet buck
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