AQD-19 Pneumatic PP/PET Strapping Tool — Approx. 1/2–3/4 in. (13–19 mm), Friction Weld

How friction welding joins the strap

Overlap → tension → friction weld → hold and cool → inspect. The tool pulls the strap around the load. During welding, the overlapping plastic strap surfaces move rapidly against each other under pressure. Friction generates heat at the interface, locally melting the plastic. When movement stops, the joint remains pressed together while it cools and solidifies.

This is friction welding, a heat-fusion process. It does not use an externally heated blade to make the joint. The compressed air supplies mechanical power; the heat is produced by friction. Follow the model instructions for cutting, cooling and tool release.

Why choose a friction-weld joint?

• No separate metal seal: eliminates the metal clip used in a conventional sealed plastic-strap joint.
• No heated-blade warm-up: heat is generated at the strap interface during the weld.
• Integrated handling: tension, weld and trim with one tool, reducing tool changes.
• Practical for repeat packing: establish suitable settings on a trial assembly, then check joint quality throughout the batch.

Joint performance depends on strap quality, alignment, surface cleanliness, weld settings and adequate cooling. Tool tension is not a rating for the finished joint or the load.

PET polyester strap vs. PP polypropylene strap

PET means polyethylene terephthalate, commonly called polyester strapping. The Chinese trade name “塑钢带” refers to this plastic packaging strap; it does not mean steel-reinforced banding. Use “PET strapping” or “polyester strapping” when specifying material in English.

PET: commonly selected for more demanding pallet and bundle applications where strength and retained tension matter. Performance varies with strap grade, dimensions and load conditions.

PP: polypropylene strapping, commonly selected for lighter cartons and general packaging. It generally stretches more and retains tension less well than polyester. Match the tension to the package to avoid crushing or damage.

PET is specified in the operating manual; the product brochure also lists PP. For PP applications, confirm your strap grade and tool configuration before ordering. Use compatible weldable strap within this listing's dimensions. Steel banding, woven/composite cord strap and nylon cable ties are different systems. Strap color alone does not identify the material or its performance.

Specifications — US and metric units

Configuration check: documentation differs on maximum tension and strap thickness. This listing retains the narrower 0.5–1.2 mm thickness range; ask us to confirm compatibility before selecting thicker strap. Changing between 13, 16 and 19 mm strap requires the appropriate side-guide and cutter-guide setup.

Metric & US units: Converted values marked ≈ are rounded for reference; the original rating and model-specific instructions govern selection. The common 1/2, 5/8 and 3/4 in. strap labels are nominal, not exact conversions of 13, 16 and 19 mm. Match actual strap width and thickness.

What compressed-air supply do I need?

• Supply: use a suitable workshop compressor or regulated plant compressed-air line.
• Air preparation: install a filter–regulator–lubricator (FRL) as close to the tool as practical. Supply clean compressed air, drain collected moisture daily and maintain the specified pneumatic-tool lubrication.
• Flow and duty cycle: select compressor delivered airflow at the operating pressure for your cycle frequency and the number of tools sharing the line. Tank size or horsepower alone cannot establish suitability.
• Hose and couplers: the manual specifies a minimum hose internal diameter of 6 mm (nominal 1/4 in.); its illustrated setup uses a 3/8 in. hose. These are hose sizes, not inlet-thread specifications. Avoid restrictive fittings, excessive length and leaks; confirm the actual quick-coupler and inlet-thread standard before connection.
• Before buying a compressor: request the model's verified air-consumption specification in L/min or SCFM, including whether it is free-air consumption and the stated duty cycle. A verified airflow figure is not specified on this page.

A small portable compressor may reach the required static pressure yet fail to maintain flow during repeated tensioning and welding. Do not compensate for inadequate flow by exceeding the rated pressure. Disconnect and isolate air before adjustments or maintenance.

Where AQD-19 fits

Consider it for carton palletizing, timber bundles, building-material packages and warehouse dispatch where compatible PP/PET strapping is specified. Use corner protection and a suitable load-containment plan for sharp edges, fragile packages or settling loads.

It is especially relevant to a fixed packing station that already has compressed air. Air-hose access is part of the setup; this is not a cordless tool. Packaging straps are not lifting slings.

Choose the setup for your packing job

Three operations, one tool: pneumatic tensioning reduces repeated hand-pumping, friction welding removes the separate metal-seal step, and integrated cutting trims the excess strap. The operator still wraps and loads the strap, operates the controls and checks the finished joint.

Set up and check the first joint

Confirm the strap material, actual width and thickness, and the required width setup. Keep the overlap aligned and clean. Adjust tension and welding time according to the current instructions and trial the actual strap and package. Allow the required cooling period before releasing the tool or loading the joint. Inspect and verify sample joints before production, especially when changing strap suppliers or dimensions.

The listed 2–5 second welding adjustment is not the total packing cycle or cooling time. Longer welding time is not automatically a stronger joint.

Frequently asked questions