Injection Moulding Machine for Cord Locks, Toggles and Webbing Hardware
Cord locks, toggles and small webbing hardware for bags are moulded from POM, nylon or ABS on horizontal injection moulding machines using multi-cavity moulds. A spring cord lock needs separate body and plunger tools, each sized by cavity count. The sliding fit between them matters most, as it sets how well the cord is held over repeated use.
Because the body and plunger are moulded apart and assembled with a steel spring, machines are matched to each tool and to the assembly rate. Pratishna Engineers supplies horizontal injection moulding machines for this hardware and can recommend sizes.
Manufacturing Cord Locks and Toggles?
Share your part drawings, material and cavity plan, and Pratishna Engineers will recommend a machine for each tool.
Machine Requirements for Cord Lock and Toggle Moulding
A cord lock only works if the plunger slides freely yet grips the cord every time. Machine and process points to plan for:
- Separate body and plunger moulds planned for matching output
- Consistent POM shrinkage for a steady sliding fit
- Clean cord holes free of flash
- Spring seat held to size for quick assembly
- UV-stabilised grades for outdoor packs and gear
- Small, accurate shots in multi-cavity moulds
Recommended Machine for Cord Locks and Toggles
Cord lock bodies, plungers and toggles are small enough for the E Series (75-180 T) in most multi-cavity moulds. The H Series (120-350 T) comes in for larger webbing hardware tools, or moulds with very high cavity counts where the projected area grows.
Not Sure Which Machine You Need?
Share your cord lock or toggle details for a machine suggestion.
Why Choose Pratishna Engineers?
- Application-Based Machine Selection
- In-House Engineering & Manufacturing
- Multiple Machine Series
- Production-Focused Solutions
- End-to-End Technical Support
- Industry-Specific Solutions
- Machine Lifecycle Support
Injection Moulding Machine Buyer Resources
Download practical resources to help you select, size and specify the right machine.
Horizontal Injection Moulding Machine Selection Guide
A step-by-step guide covering the key inputs needed to select the right machine: product weight, projected area, number of cavities, plastic material, required clamping force, shot / injection capacity, mould dimensions, production quantity, cycle time and automation requirement.
Download PDFPDF · 265 KB
How to Calculate Clamping Force for an Injection Moulding Machine
A clear methodology that explains how clamping force is calculated, covering projected area, injection pressure, safety factor, number of cavities and material considerations.
Download PDFPDF · 363 KBLuggage & Bags Components & Machine Guide
A guide to Luggage & Bags components, covering trolley parts, spinner wheels, buckles, zipper sliders, handle grips, lock housings and case latches. It explains POM, nylon and PP, two-material parts, wear resistance, and how to match each part to a suitable machine.
Download PDFPDF · 206 KB
FAQs / Buyer Questions
Practical questions from backpack and outdoor bag hardware makers.
Which Injection Moulding Machine Is Used to Make Cord Locks and Toggles?
Most cord lock and toggle moulds run on compact horizontal machines in the E Series. Larger webbing hardware tools, or moulds with many more cavities, can call for the H Series.How Many Moulds Does a Spring Cord Lock Need?
Usually two, one for the body and one for the plunger, plus a steel spring and an assembly step. Both tools should be planned for matching output so assembly never waits on either part.How Is Cord Lock Performance Judged?
By the force with which it still holds the cord after many open and close cycles, not by a single new-part test. Stable POM moulding keeps the plunger and body fit unchanged so grip does not fade.
Can Nylon Be Used Instead of POM?
Yes, nylon is used for some toggles and hardware. It must be dried before moulding and takes up moisture afterwards, so its size shifts slightly. POM keeps a steadier sliding fit for plungers.Can Pratishna Recommend a Machine for My Cord Lock?
Yes. Share the body, plunger and toggle drawings or samples, material, part weights, mould dimensions, cavities and monthly volume, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Backpack and Bag Parts Too?
Yes. These machines also suit bag buckles, zip pull tabs, zipper sliders and bag feet and studs, subject to the mould.
Technical Disclaimer
Disclaimer: The information provided in this webpage is for general informational and educational purposes only. It is based on technical references and industry information available at the time of preparation and may be subject to change. It does not constitute engineering, technical, commercial or professional advice, nor does it constitute a quotation, specification, warranty or contractual commitment by Pratishna Engineers.
Actual injection moulding machine and process requirements vary according to the component design, material, mould, production volume, machine configuration and operating conditions. The information, examples, calculations and recommendations provided should be independently evaluated and verified for the specific application before making any equipment, process or production decision. Information obtained from third-party sources remains subject to the accuracy and limitations of those sources.
Limitation of Liability: Pratishna Engineers makes no representation or warranty, express or implied, regarding the completeness, accuracy or suitability of the information for any particular application. To the extent permitted by applicable law, Pratishna Engineers shall not be liable for any loss, damage, cost or consequence arising from reliance on or use of the information contained in this webpage. Final machine selection, configuration and application suitability should be confirmed with Pratishna Engineers based on complete and accurate project requirements.
Talk to Our Engineers
Planning a New Injection Moulding Project?
Share your component, material, mould and production target. Our engineering team will help you identify the right machine configuration.
- Machine Sales
- +91 99690 38542
- Service Support
- +91 97689 28259
- Sales Email
- [email protected]