Injection Moulding Machine for Knock-down Furniture Fittings
Knock-down fittings such as cam lock housings, dowels and shelf support pins come from horizontal injection moulding machines running multi-cavity moulds in POM, PA6, ABS or PP. Cavity count and runner balance decide machine size. Dimensional repeatability matters most, because a housing out of size will not hold in a bored hole or pull the panels tight.
Selection for knock-down hardware focuses on shot-to-shot repeatability over many cavities and a cycle short enough for very large volumes. Pratishna Engineers supplies horizontal injection moulding machines for ready-to-assemble furniture fittings and can recommend a machine for your fitting range and tools.
Moulding Knock-down Fittings?
Share your fitting drawings, bore sizes, material and annual volume, and Pratishna Engineers will recommend a machine for your moulds.
Machine Requirements for Knock-down Fitting Moulding
Ready-to-assemble furniture depends on fittings that hold size from one lot to the next. Considerations when selecting a machine:
- Repeatable shot weight across every cavity of the tool
- Balanced runner or hot runner for equal fitting size
- Melt control for POM to avoid degradation and burn marks
- Housing ribs that grip a bored hole without cracking
- Even wall sections on dowels and pins against sink
- Platen space for high-cavity hot runner moulds
Recommended Machine for Knock-down Fittings
Knock-down fittings are small parts run in large numbers, so the E Series (75-180 T) handles many cam housing, dowel and shelf pin moulds. High-cavity hot runner tools, or family moulds for a full fitting set, may need the H Series (120-350 T) for platen space and clamping force.
Not Sure Which Machine You Need?
Send your fitting drawings and volumes 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 KBFurniture & Hardware Components & Machine Guide
A guide to Furniture & Hardware components, covering chairs, stools, tables, drawers, storage, hinges, drawer channels, knobs, castors and fittings. It explains large-part moulding, mould height, POM and nylon hardware, and how to match each part to a suitable machine.
Download PDFPDF · 203 KB
FAQs / Buyer Questions
Questions from makers of ready-to-assemble furniture hardware.
Which Injection Moulding Machine Is Used to Make Knock-down Fittings?
An E Series machine suits many cam housing and shelf pin tools. The H Series takes over for large hot runner moulds or family tools. Clamping force follows the projected area of every cavity and the runner.Is the Cam Lock Disc Injection Moulded Too?
The cam disc is often zinc die-cast rather than moulded, so check the drawing before quoting. The plastic housing it turns in is moulded, often in POM for a low-friction surface against the rotating cam.Why Does a Cam Housing Crack When Hammered In?
Cracks start at weld lines, sharp corners or brittle, undried material. A gate placed away from the gripping ribs, radiused corners and dry PA6 help the housing survive being driven into a bored hole and still hold size.
How Is Size Held Across a High-Cavity Fitting Mould?
A balanced hot runner or runner layout fills every cavity at the same rate. Check parts from each cavity, watch for gate wear and keep mould temperature even, since uneven cooling makes some cavities run oversize.Can Pratishna Recommend a Machine for My Knock-down Fitting?
Yes. Share the fitting drawings or samples, bore and panel sizes, material, part weight, cavities per tool and yearly quantity, and Pratishna Engineers will recommend a machine.Does the Machine Suit Other Ready-to-Assemble Furniture Parts Too?
Yes. Drawer channel components, hinges, push-fit panel clips and fastener caps share this class of machine, depending on each 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.
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Planning a New Injection Moulding Project?
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