Injection Moulding Machine for Diagnostic and Rapid Test Cassettes
Diagnostic and rapid test cassettes are made on horizontal injection moulding machines, usually as top and bottom halves in multi-cavity or family moulds, from PS, ABS, PP or PC. Cavity count and the cassette footprint decide clamping force. Rib height and window size matter most, because they position the test strip and control sample flow.
For cassettes, machine selection centres on holding rib and snap dimensions on both halves, flash-free sample wells and steady shrinkage so the halves close with even strip compression. Pratishna Engineers supplies horizontal injection moulding machines for test cassette moulding and can recommend a configuration for your housing and mould.
Moulding Rapid Test Cassettes?
Share your cassette drawing, resin, cavity layout for both halves and output target, and Pratishna Engineers will recommend a machine.
Machine Requirements for Rapid Test Cassette Moulding
The cassette housing takes part in the test itself, so the machine has to hold its critical features shot after shot:
- Rib height held steady for correct strip compression
- Flash-free sample well and result window edges
- Matched shrinkage between top and bottom halves
- Snap-fit features that close with consistent force
- Balanced runners for family moulds of both halves
- Consistent masterbatch let-down for an even housing colour
Recommended Machine for Rapid Test Cassettes
Cassettes are small, flat parts, so cavity count and whether both halves share one tool set the machine. E Series (75-180 T) and Hybrid PH Series (120-140 T) machines suit many cassette moulds, with electric injection on the PH helping shot repeatability. Higher-cavity family tools can need clamp from the C Series (140-320 T) or the H Series.
Not Sure Which Machine You Need?
Send your cassette halves and strip layout for a machine recommendation.
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 KBMedical Sector Components & Machine Guide
A guide to Medical Sector components, covering syringes, IV set parts, luer fittings, connectors, pipette tips, petri dishes, test cassettes and device housings. It explains medical-grade materials, clean moulding area needs, dimensional control, and how to match each part to a suitable machine.
Download PDFPDF · 206 KB
FAQs / Buyer Questions
Questions diagnostic kit makers ask before tooling a cassette.
Which Injection Moulding Machine Is Used to Make Rapid Test Cassettes?
In most cases, a small horizontal machine. E Series and Hybrid PH machines cover many single and family cassette tools, and high-cavity layouts for large test volumes can move to the C or H Series.Why Do Rib Height and Window Size Matter in a Cassette?
The ribs press the nitrocellulose strip and the window frames the result. A small change in rib height alters strip compression and capillary flow, which can change the reading, so these dimensions are validated rather than treated as cosmetic.What Causes Flash in the Sample Well?
A worn parting line, low clamp on a large family tool or excess injection pressure can push flash into the well. Any flash there can block or divert the sample, so it counts as a functional failure.
Should Top and Bottom Halves Be Moulded Together?
Family moulds keep the halves in matched pairs, but the two parts fill differently and need balanced runners. Separate tools allow independent process setting when snap fit or rib height needs fine adjustment.Can Pratishna Recommend a Machine for My Rapid Test Cassette?
Yes. Share drawings of both halves, resin grade, cavity counts, family or separate tooling, mould dimensions and target output, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Diagnostic Parts Too?
Yes, subject to the mould. Test kit housings, specimen and urine containers, blood collection tubes and laboratory trays can be moulded on similar machines, sized to each tool.
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]