Woven lash, composite cord strap, PET strapping are common tools for packing and cargo control.
1. Woven Cordlash (Woven Cord Strapping)
- Construction: Made by weaving high‐tenacity polyester fibers in multiple directions (both horizontally and vertically).
- Properties:Buckle Compatibility: Works best with phosphate‐coated buckles that provide the needed friction to hold the woven material in place.
- Offers moderate elongation (typically around 9–15%) which helps absorb shocks and impacts.
- Flexible and soft, making it well suited for hand-tie applications in agriculture, landscaping, and light bundling.
USE:
Preparation and Inspection
• Check Your Equipment: Inspect the woven cordlash, the one way buckle (punched or forged), and the tensioning tool (manual) for any signs of wear or damage. Make sure you’re using components that are rated for your cargo’s weight and transport conditions.
Threading the Cordlash Through the Lashing Buckle
• Lay Out the Lashing: Unwind the woven cordlash and position it so that you have a clear, untwisted length.
• Insert into the Buckle: Feed the free end of the cordlash into the forged buckle. Typically, you’ll pass it through the central guide of the buckle.
• Form a Loop: Create a loop by folding the lashing away from you. This loop is then fed through the center of the buckle and over the top prong, ensuring a secure engagement.
Applying Tension
• Connect the Tensioner: Attach your chosen tensioning tool to the cordlash.
• Tighten Gradually: Use the tensioner to pull the lashing, gradually removing slack until the correct tension is achieved. The goal is to have a snug, secure fit that holds the cargo firmly without over-tensioning, which could damage the cargo or the lashing system.
• Monitor the Tension: Check that the tension remains consistent along the lashing. The retained tension characteristic of woven cordlash helps maintain safety even under dynamic load conditions.
2. Composite Cord Strap
- Construction: Consists of vertically aligned polyester fibers that are bound together by a clear polypropylene coating.
- Properties:Buckle Compatibility: Requires wire buckles (galvanized or phosphating) to prevent premature wear, as the composite’s low-friction surface won’t work well with phosphate-coated buckles.
- The polypropylene coating adds water resistance and increases abrasion resistance while making the strap stiffer (lower elongation) than woven cordlash.
- Its rigidity makes it easier to feed under pallets and secure heavy or shifting loads with a higher joint efficiency.
USE:
Prepare Your Cargo and Equipment
- Inspect the Cargo: Ensure the cargo is stable and that the surfaces where the strap will make contact are clean and free of debris. This helps avoid damage and ensures a secure hold.
- Gather Tools: Depending on your system, you may need a composite cord strap, the appropriate wire buckle, and a tensioning device.
Positioning the Strap
- Wrap Around the Cargo: Drape the strap around the cargo or bundle so that it covers the load securely. Make sure the strap’s path avoids any sharp edges that might damage it.
- Route Correctly: Follow the recommended path as per the system instructions. For many composite strapping systems, this involves passing the strap through a designated guide or slot in the buckle.
Tensioning the Strap
- Insert the Strap: Feed the strap through the buckle mechanism or tensioning tool.
- Apply Tension: Use your tensioning device (either manually or with a pneumatic tensioner) to pull the strap tight. The goal is to create enough tension to secure the cargo without over-stressing the strap.
- Lock It in Place: Once the desired tension is reached, lock the mechanism to prevent any loosening during transport.
3. PET Strapping
- Construction: Manufactured from extruded polyethylene terephthalate (PET), resulting in a flat, strong strap rather than a cord.
- Properties:Application: Ideal for situations requiring minimal stretch and high load-bearing capacity while still being lighter and safer than steel.
- It has very high tensile strength with minimal elongation, making it a popular alternative to steel for heavy-duty applications such as securing pallet loads.
- PET strapping is extremely durable, weather-resistant, and retains its tension well over time.
USE:
Preparation
- Choose the right PET strapping: PET strapping is ideal when you need high strength and minimal stretch.
- Gather your tools: Depending on your application, you may need a manual or automatic PET strapping tool. These tools often combine tensioning, sealing, and cutting functions.
Loading the Strap
- Threading the strapping: Feed the PET strap through the designated path on your tensioning tool or machine. For manual tools, this may involve aligning the strap around the load before engaging the tensioner.
- Position the strap correctly: Ensure the strap is properly placed around the load, typically covering the heaviest or most critical areas that require reinforcement.
Tensioning
- Gradual tensioning: Using your tool’s ratcheting or windlass mechanism, slowly apply tension to the strap. This pulls the strap tightly around the load, ensuring it’s secure.
- Monitor for even tension: Make sure the strap is evenly tensioned. Uneven tension might lead to slippage or damage to the load.
Sealing the Strap
- Apply the closure: PET strapping usually requires either a seal or a buckle.Cut excess material: After sealing, use the tool’s integrated cutter or a separate cutting tool to remove any excess strap for a neat finish.
- Heat sealing: Many PET strapping tools use heat or ultrasonic welding to melt and join the overlapping ends, forming a strong bond.
- Mechanical sealing: Alternatively, you may use a buckle or metal clip that crimp the overlapping strap together.
Post time: Feb-28-2025
