Plastic Engineering
Services

The full stack of plastic manufacturing capability โ€” injection moulding, in-house mould making, R&D and product development, colour compounding, and quality control โ€” all operated under one roof in Lahore.

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โœ“ 50T โ€“ 650T machines โœ“ In-house mould shop โœ“ R&D & colour lab โœ“ Full QC before despatch

Machine Fleet & Capabilities

50T โ€“ 650T
Clamping force range
1g โ€“ 2kg
Shot weight range
ยฑ0.1mm
Standard tolerance
Multi
-cavity tooling capability
24h
Quote response time
100%
QC before despatch

What We Do

01

Injection Moulding

Injection moulding is APPL's primary manufacturing process. Molten polymer is injected under high pressure into a precision steel mould, cooled, and ejected as a finished part โ€” in seconds. The process is capable of extraordinary dimensional consistency, complex geometries, and the surface quality that consumer-facing and engineering applications demand.

Our machine fleet spans 50T to 650T clamping force, covering everything from small precision components to large structural parts. Settings are locked and recorded for approved production parts, ensuring that repeat orders produce identical parts to the first approved sample.

We run single-cavity and multi-cavity tools, process a wide range of engineering polymers, and can accommodate insert moulding (brass inserts, metal components) and overmoulding (two-material parts) for appropriate applications.

50T โ€“ 650TSingle & multi-cavity Insert mouldingOvermoulding
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Injection moulding / production floor
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02

In-House Mould Making

Most injection moulders in Pakistan outsource tooling and pass the lead time and quality risk to their clients. APPL's in-house mould shop is a fundamental competitive advantage: we control the quality, lead time, and cost of tooling from the first cut of steel to final trial.

Our mould design process begins with a DFM review โ€” checking your part geometry for wall thickness uniformity, draft angles, undercuts requiring side-actions, gate location, and cooling circuit design. Changes made at design stage are free. Changes after steel is cut are not.

Tooling types: single-cavity prototype moulds, multi-cavity production moulds (up to 16 cavity for small components), family moulds, and hot-runner moulds for high-volume applications requiring zero runner waste.

DFM review includedSingle to 16-cavity Hot runner capabilityMould ownership โ€” yours
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Mould shop / CNC machining
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03

R&D & Product Development

Many clients come to us not with a finished design, but with a problem to solve or a product to create. Our R&D capability allows us to work from brief to production โ€” supporting new product development projects where the part needs to be engineered from scratch.

R&D projects begin with an application review: understanding what the part needs to do, what forces and environments it will be subjected to, how it connects to other components, and the appearance and cost requirements. From this, we specify material, design the geometry, model it in 3D, review it with you, and then move to tooling and first samples.

We also support import substitution โ€” replacing a part currently sourced internationally with a locally manufactured equivalent. We can work from the imported sample alone: measuring, modelling, advising on material match, and producing local samples for your evaluation.

Brief-to-production3D modelling Material specificationImport substitution
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R&D lab / product development
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04

Colour Compounding

We compound masterbatch colour on-site, meaning we control the formulation, consistency, and repeatability of every colour we produce. We match to Pantone references, RAL codes, NCS standards, and physical colour chips.

When you approve a colour at the sample stage, we retain a chip from that approved batch as the reference standard. Every subsequent production run is colour-checked against that reference before despatch โ€” ensuring batch-to-batch colour consistency across repeat orders placed months apart.

Beyond standard colours, we develop functional compounds: UV-stabilised grades for outdoor applications, flame-retardant grades for electrical components, rubber-toughened grades for improved impact resistance, and glass-filled grades for enhanced stiffness.

Pantone / RAL matchingPhysical chip matching UV-stable gradesFR & GF compounds
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Colour lab / masterbatch compounding
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05

Quality Control

Our QC process is integrated into production, not a final inspection checkbox. In-process checks are conducted at regular intervals during every production run, and critical dimensions are verified against approved drawing tolerances before any batch is cleared for packing.

Our on-site QC lab performs dimensional inspection using calibrated gauging equipment, hardness testing using Shore durometers, visual inspection against approved appearance standards, and material verification using certified supplier data.

Every approved production part has a locked process parameter sheet. When a repeat order is run, the same parameters are reloaded โ€” ensuring moulding conditions are identical to those that produced the approved first article. Consistency is engineered in, not left to chance.

Dimensional inspectionHardness testing Visual QCBatch traceabilityMaterial certs
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QC lab / inspection
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Polymers We Process

PPPolypropylene โ€” standard, copolymer, glass-filled
HDPEHigh Density Polyethylene โ€” bottles, containers
LDPELow Density Polyethylene โ€” flexible applications
ABSAcrylonitrile Butadiene Styrene โ€” standard & FR grades
ABS+PCABS/Polycarbonate blend โ€” enhanced heat & impact
PA6 / PA66Nylon โ€” standard & glass-filled grades
POMAcetal โ€” precision moving parts, low friction
PVCPolyvinyl Chloride โ€” rigid & flexible grades
PCPolycarbonate โ€” optical clarity, impact resistance
HIPSHigh Impact Polystyrene โ€” packaging & display
TPE / TPUThermoplastic elastomers โ€” soft-touch & flexible
Custom BlendsUV-stable, FR, rubber-toughened, GF โ€” in-house compounded

Don't see your material? Contact us โ€” we process a wide range of engineering and specialty polymers.

The APPL Production Process

01

Enquiry & Technical Review

Send us your drawing, CAD file, sample, or brief. Our engineering team reviews the part within 24 hours and responds with a quotation or specific DFM questions. Engineers review enquiries directly โ€” not a sales layer.

02

Quotation & DFM Report

Our quotation covers mould cost, per-part production price, lead times, and any DFM notes on the design. If the design has issues that would affect part quality or mould life, we flag them before you commit to tooling.

03

Mould Design & Approval

On order confirmation, mould design begins. We share the mould layout with you for approval before machining โ€” giving you a final checkpoint on cavity layout, gate location, cooling arrangement, and ejection system.

04

Tooling & Trials

The mould is machined in our workshop. Initial trials verify fill, cooling, and ejection before first samples are produced. Any mould corrections are implemented in-house โ€” rapidly, without third-party delay.

05

First Article Samples

First article samples are dimensionally checked and presented with a report. You evaluate fit, function, and appearance โ€” approve for production or request modifications. We iterate until specification is met.

06

Production & QC

Production runs against locked parameters. In-process QC at intervals. Critical dimensions verified before packing. Parts despatched with any requested documentation โ€” delivery note, material certificate, dimensional report.

07

Mould Storage & Repeat Supply

Your mould is stored and maintained at APPL between orders. Repeat orders are processed against the same locked parameters โ€” ensuring the 10,000th part matches the first approved sample.

Full Capability Specifications

ProcessThermoplastic injection moulding
Machine tonnage range50T โ€“ 650T clamping force
Shot weight range1 g โ€“ 2,000 g per cycle
Standard toleranceยฑ0.1 mm on critical features
Achievable toleranceยฑ0.05 mm on small, simple features
Wall thickness range0.8 mm โ€“ 10 mm
Mould typesSingle cavity, multi-cavity, family, hot runner, insert mould
Maximum cavitation16 cavities (small packaging components)
Surface finish optionsAs-moulded, polished (SPI A1โ€“D3), textured (VDI 3400), custom grain
ColourAny โ€” in-house masterbatch; Pantone / RAL / chip matching
Secondary operationsDrilling, tapping, assembly, pad printing, ultrasonic welding
QC equipmentCalibrated gauges, Shore durometers, visual inspection standards
DocumentationDimensional reports, material certificates, batch traceability
Minimum order qty500 pcs (sample) / 5,000 pcs (production)
Sample lead time3โ€“7 weeks from mould order (complexity dependent)
Production lead time1โ€“3 weeks (existing approved mould)
Quote turnaroundWithin 24 hours of complete enquiry

Ready to Discuss Your Engineering Project?

Send us your drawing, sample, or brief โ€” or just describe what you need. We review it and respond within 24 hours with a clear quote and any questions needed before tooling begins.

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