Strapping/Banding Tools/Trollies
19mm Heavy Duty Steel Double Notch Sealer — Overview
A heavy-duty double notch sealer is a manual steel strapping sealing tool designed to crimp a metal seal onto overlapped steel strap, creating a secure double-notch joint. This style of sealer is commonly used in steel banding applications where a strong, repeatable seal is required for stabilising loads during handling, storage, and transport.
This product page represents a configurable listing, so it may cover different pack quantities and related options. The core function remains the same: forming a double-notch crimp on the correct seal for 19mm steel strapping systems.
Key Feature Highlights
- Double-notch sealing action: Forms a double-notch joint on the seal for a robust mechanical connection.
- For steel strapping systems: Intended for use with steel strap (not plastic strapping).
- 19mm / 3/4" strap width compatibility: Designed around the common 19mm steel strapping format.
- Manual, job-site friendly tool: No power supply required—ideal for warehouse, yard, and dispatch areas.
- Works as part of a complete strapping set-up: Typically used alongside a compatible tensioner and the correct seals.
Typical Uses
- Securing palletised loads with steel banding
- Bundling heavy or rigid products (e.g., timber packs, metal stock, building materials)
- Stabilising loads for transport where high strength strapping is preferred
- General warehouse and distribution steel strapping operations
Key Features (Detailed)
Double-notch joint formation:
A double-notch sealer crimps the seal in two distinct notches. This joint style is widely used in steel strapping because it provides a strong mechanical bite into the seal/strap assembly when applied correctly with the matching seal type.
Designed for steel strap applications:
Steel strapping systems rely on the correct combination of strap, seal, tensioner, and sealer. This tool is intended for steel banding workflows rather than poly/PP strapping.
19mm system compatibility:
This sealer is built for the common 19mm (3/4") steel strap width. Always confirm that the seals you are using are specified for your strap width and the double-notch sealing method.
Heavy-duty manual construction:
Heavy-duty sealers are chosen for demanding environments where tools are used repeatedly across shifts. A robust hand tool helps maintain consistent sealing performance when used and maintained correctly.
Simple integration into existing processes:
In most steel strapping workflows, the sealer is the final step after tensioning. Operators can incorporate it into standard packing benches, dispatch lanes, or yard strapping stations.
19mm Heavy Duty Steel Double Notch Sealer — Full Product Guide
Choosing the right steel strapping sealer is about matching the tool to your strap width, seal type, and the way your team works. Below is a practical guide to help you understand how a double-notch sealer fits into a steel banding system, what to check for compatibility, and how to get consistent results.
How It Works
In a typical steel strapping cycle, the strap is wrapped around the load and overlapped. A metal seal is placed over the overlapped strap ends. After the strap is tensioned using a compatible tensioner, the sealer is positioned over the seal and actuated to crimp the seal. With a double-notch tool, the crimp is formed as two notches, locking the seal onto the strap.
Because the seal is the mechanical connection holding the tensioned strap, correct tool positioning and full crimp completion are essential for a reliable joint.
Materials and Construction
Steel strapping sealers are engineered as robust hand tools intended for repeated use. In day-to-day operations, durability matters because the tool is exposed to knocks, drops, and high cycle counts. A heavy-duty sealer is typically selected where steel strapping is used frequently or where loads are heavier and the strapping system is under greater demand.
System Compatibility (Strap, Seal, and Tensioner)
Strap width: This tool is for 19mm (3/4") steel strapping systems.
Seal type: Double-notch sealers require the correct seal specification for the strap width and joint style. Using the wrong seal can lead to poor crimp formation or reduced joint performance.
Tensioner pairing: In most workflows, the sealer is used after tensioning. Ensure your tensioner is designed for steel strap and for the strap width you are running.
If you are unsure which seals match your strap and tool, it is best to confirm the seal specification before ordering in volume.
Floor Type Compatibility
This is a hand tool used at the point of packing rather than a floor-installed machine. It can be used in a wide range of environments including packing benches, warehouse aisles, loading bays, and yard areas. For best results, operators should have stable footing and adequate space to position the tool squarely over the seal.
Health and Safety
Steel strapping is a high-tension packaging method. Follow site safety procedures and training for steel banding operations. As general good practice:
- Wear appropriate PPE such as gloves and eye protection when handling steel strap and seals.
- Keep hands clear of the sealing area during crimping.
- Inspect tools regularly and remove damaged tools from service.
- Use only compatible strap and seals to reduce the risk of joint failure.
Ideal Applications and Use Cases
- Warehousing and distribution: Securing pallet loads where steel strapping is preferred for strength and rigidity.
- Manufacturing and fabrication: Bundling metal stock, profiles, or heavy components.
- Timber and building materials: Strapping packs that need strong containment during handling.
- Export and long-haul transport: Where load stability is critical and steel banding is part of the packaging specification.
Maintenance, Cleaning and Care
To keep sealing performance consistent:
- Wipe down the tool after use to remove dust and debris.
- Check the jaws/crimping surfaces for wear and keep them clean so the tool seats properly on the seal.
- Store the tool in a dry area to reduce corrosion risk.
- Periodically inspect for loose fasteners or damage, especially if the tool is used in high-volume operations.
Case Study (Example Workflow)
A dispatch team shipping heavy, rigid products uses 19mm steel strapping to stabilise pallet loads. After wrapping and tensioning the strap, the operator applies the double-notch sealer to crimp the seal. This creates a consistent joint style across shipments, helping standardise packing quality and reduce rework caused by inconsistent sealing.
Who Is It For?
- Operations using 19mm steel strapping that require a double-notch seal joint
- Warehouses and manufacturers that need a manual, portable sealing tool
- Teams looking to standardise steel banding processes with a dedicated sealer
Colours / Features Available
Tool finish and appearance can vary by production batch. The key consideration is functional compatibility with 19mm steel strap and the correct double-notch seals.
Sizes Available
This listing covers the 19mm (3/4") format. If you also run other strap widths, sealers are typically selected by strap width and joint type—choose the correct tool for each strapping system.
Need help matching seals?
If you can share the steel strap specification and the seal type you currently use (or a photo of the seal), it becomes much easier to confirm compatibility and avoid ordering the wrong consumables.