Injection Moulding Machine for Laboratory and Diagnostic Trays
Laboratory and diagnostic trays are produced on horizontal injection moulding machines in PP, PS, ABS or conductive PP for static-sensitive use. Tray footprint sets projected area and clamp force, and pocket depth sets mould height. Holding datum and nesting features to size matters most, because these trays feed instruments and automated sorting lines.
Because the trays are handled by machines as well as people, selection weighs shot-to-shot repeat and injection pressure for filled grades. Pratishna Engineers supplies horizontal machines for lab tray moulds and can propose a configuration, with any clean moulding area set by your own process.
Moulding Laboratory Trays?
Share your tray format, datum features and resin grade, and Pratishna Engineers will recommend a machine and quotation.
Machine Requirements for Laboratory and Diagnostic Tray Moulding
Lab trays are located by instruments, so dimensional repeat matters as much as appearance. Points to cover:
- Datum and locating features held to size every shot
- Flatness so trays seat in instruments and racks
- Higher injection pressure for carbon-filled ESD PP grades
- Screw and barrel suited to abrasive conductive fillers
- Thorough purging after black ESD grades before light colours
- PP grades chosen for autoclave and reagent contact
Recommended Machine for Laboratory and Diagnostic Trays
Sample and reagent trays with a modest footprint often run on the E Series (75-180 T). Full-format instrument trays, deep pocket trays and conductive grades that need extra injection pressure are better placed on the H Series (120-350 T), or on the C Series (140-320 T) where its platen suits the mould, sized from projected area and shot weight.
Not Sure Which Machine You Need?
Send your tray drawing and resin grade 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
What lab consumable makers usually ask before they commit a tray tool to a machine.
Which Injection Moulding Machine Is Used to Make Laboratory and Diagnostic Trays?
The choice follows tray format. Small reagent and sample trays generally sit in the E Series, and full-size or deep-pocket instrument trays in the C or H Series, with conductive grades pushing toward a larger injection unit.Do ESD and Conductive Grades Mould Differently?
Yes. Carbon-filled PP flows stiffer and freezes faster, so it needs higher injection pressure and speed and a warmer mould. The filler wears the screw and check ring, and surface resistance can vary with flow direction and gate position.How Are Nesting and Datum Features Kept to Size?
Datums are formed in the fixed half where the design allows, and cooled evenly, with stable holding pressure and mould temperature from shot to shot. Shrinkage is measured on trial trays after they settle, and the mould steel is corrected before production.
Which Resin Suits Trays That Meet Reagents or Autoclaving?
PP handles autoclave cycles and many aqueous reagents. PS gives clarity and stiffness and ABS gives toughness for single-use trays, but both have lower heat and solvent resistance, so the reagent list is reviewed before the grade is fixed.Can Pratishna Recommend a Machine for My Laboratory / Diagnostic Tray?
Yes. Share the tray drawing or sample, resin grade including any ESD grade, part weight, mould dimensions, trays per mould and yearly quantity, and Pratishna Engineers will recommend a suitable machine.Does the Machine Suit Other Laboratory Consumables Too?
Yes. Machines in this range also mould petri dishes, pipette tips, microplates and PCR plates, and test kit housings, although tip and plate moulds may favour different screw sizes and mould layouts.
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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