Where an appliance
takes shape.
Every housing, jar, lid, base, gear and handle in a C Lal appliance is moulded on our own floor from our own tooling. Moulding is not a bought-in commodity here — it is the core of how we manufacture.
Integrated moulding, engineered for the finished product.
Plastic components define most of what a user sees and touches in a modern appliance. They also define how well it assembles, how it survives daily use and how consistent it looks across a production run of hundreds of thousands.
C Lal’s injection-moulding operation sits between the tool room that builds the moulds and the assembly lines that use the parts. That position lets us engineer components for fill, cooling, ejection, fit and cosmetic finish together — and correct problems at their source, whether that is the tool, the material or the process.
We mould for our own OEM programs, for the group’s consumer-appliance businesses and, as component-only supply, for other appliance brands and manufacturers.
Cosmetic, food-contact and structural components.
- Motor-unit housings and bases
- Jars, bowls and lids
- Handles, knobs and switches
- Gears, couplers and drive components
- Iron handles, tanks and skirts
- Kettle bodies, lids and bases
- Control panels and bezels
- Internal frames, guides and brackets
- Cord winders, feet and covers
- Filters, strainers and food-contact parts
Six controlled stages from steel to shipped part.
Moulding quality is decided before the first shot and protected during every shot after it.
- 01
Part & mould engineering
Wall thickness, draft, rib design, gating, cooling and ejection are reviewed together so the part fills, cools and releases consistently.
- 02
Material preparation
Hygroscopic polymers are dried to specification; masterbatch and regrind ratios are controlled and recorded per job.
- 03
Mould setting & first-off
Moulds are set with documented parameters. First-off parts are checked against dimensions, cosmetic masters and fit gauges before the run is released.
- 04
Controlled production
Melt temperature, injection speed and pressure, hold, cooling time and cushion are monitored and logged; deviations trigger review.
- 05
In-process inspection
Operators check parts at defined intervals for short shots, sink, flash, warpage, colour and surface finish.
- 06
Secondary operations
Gate trimming, deflashing, ultrasonic welding, heat-staking, inserts, pad printing and sub-assembly are completed in the moulding flow.
Engineering thermoplastics for every zone of an appliance.
Exterior, wet zone, transparent, drivetrain and hot zone each demand a different polymer. We mould all of them.
| Material | Polymer | Characteristics | Typical components |
|---|---|---|---|
| ABS | Acrylonitrile butadiene styrene | Rigid, impact-resistant, excellent surface finish and colourability. | Housings, panels, handles and cosmetic exteriors. |
| PP | Polypropylene | Chemical and fatigue resistant, food-contact grades, low cost, living hinges. | Jars, lids, bases, internal structures and water-system parts. |
| PC | Polycarbonate | High impact strength, transparency, heat resistance. | Transparent jars, bowls and lids, protective covers. |
| SAN | Styrene acrylonitrile | Clear, rigid, good chemical resistance at lower cost than PC. | Transparent containers and measuring components. |
| PA | Polyamide (nylon) | Strength, wear resistance and toughness; glass-filled grades for structure. | Gears, couplers, bearings and load-bearing internal parts. |
| POM | Polyoxymethylene (acetal) | Low friction, dimensional stability, fatigue resistance. | Gears, sliding parts, clips and precision mechanisms. |
| PBT / Glass-filled | Engineering blends and filled grades | Heat and electrical performance for components near heaters and controls. | Switch housings, terminal covers, thermostat mounts. |
Food-contact grades are used for jars, lids, blades holders and other components that touch food or water. Material certificates are retained per batch.
Our moulds. Our tool room.
Injection moulds for our programs are designed, built, trialled and maintained by C Lal’s in-house tool room.
Keeping tooling in-house means a dimensional or cosmetic issue on the floor becomes a tool correction the same day rather than a quotation to an outside shop. It also means every mould has a shot counter, a maintenance schedule, a parameter sheet and an identified rack location, so any tool can be set within a planned changeover.
Customer-owned moulds are welcomed. They are evaluated, refurbished where required and run under a documented tool-transfer process with first-off approval against the customer’s drawings.
Tooling & mould developmentEngineering support before steel is cut.
We review every component for manufacturability before tooling is committed. These are the checks that prevent a lifetime of process compromise.
Uniform wall thickness
Prevents sink marks, voids and warpage; transitions are gradual and cored where possible.
Adequate draft
Draft on every surface parallel to the draw, increased on textured faces, so parts release without drag marks.
Rib and boss design
Rib thickness proportioned to the wall, boss diameters sized for fasteners, all with fillets at the base.
Gate location
Gates placed for balanced fill, away from cosmetic surfaces and structural weld-line risk.
Tolerance realism
Tight tolerances applied only where function demands them; the rest follow material shrinkage behaviour.
Assembly interface
Snap-fits, screw bosses and locating features designed with the assembly sequence and fixtures in mind.
Finished in the moulding flow.
Moulded parts leave the cell ready for assembly. Secondary operations are performed alongside the machines rather than in a separate department:
- Gate trimming and deflashing
- Ultrasonic welding of jars, tanks and housings
- Heat-staking and metal-insert fitting
- Pad printing and marking
- Sub-assembly of moulded components
- Protective packing for cosmetic surfaces
Every run released against a standard.
First-off parts are approved before a run begins. Interval checks continue through the run, and actual process values — not set values — are logged.
- Dimensional inspection against drawings and gauges
- Cosmetic comparison to approved masters
- Colour matching to customer standards
- Weight and short-shot monitoring
- Fit checks with mating parts
- Material certificates and batch traceability
Injection moulding FAQ.
Which polymers do you mould?
Commodity and engineering thermoplastics common in appliances: ABS, PP, PC, SAN, PA, POM, PBT and filled or blended grades. Food-contact grades are used where the component requires them.
Do you build the moulds in-house?
Yes. Mould design, build, trial and maintenance are handled by our tool room, which also supports customer-owned tooling.
Can you mould parts for products you do not assemble?
Yes. Component-only moulding is offered to appliance brands and other manufacturers, with inspection to their drawings and specifications.
What secondary operations are available?
Gate trimming, deflashing, ultrasonic welding, heat-staking, metal-insert fitting, pad printing and sub-assembly of moulded components.
How do you ensure colour consistency across batches?
Approved colour masters, controlled masterbatch ratios, dried material and logged process settings, with batch-to-batch comparison at first-off.
From the moulding floor.
EngineeringThe Tool Room: The Quiet Foundation of Repeatable Manufacturing
Why tooling, fixtures, maintenance and in-house problem solving have an outsized effect on quality, uptime and manufacturing consistency.
Read article ↗Injection MouldingPlastic Injection Moulding in Modern Appliance Manufacturing
How mould design, process control and material discipline influence the fit, finish and performance of appliance components.
Read article ↗Injection MouldingInside the Moulding Cell: The Process Parameters That Decide Part Quality
Melt temperature, injection speed, hold pressure, cooling and cushion: what each parameter controls, what goes wrong when it drifts, and how a disciplined cell keeps them inside the window.
Read article ↗Have a part, a product or a mould?
Send drawings, samples or a concept. We will review manufacturability, material and tooling options and come back with a scoped proposal.