Where Thermosets Take Shape.
1,000+ moulds and dies since 2015 · 100+ die casting dies serviced
A specialist tool room for thermoset compression moulds: SMC, DMC, Bakelite, melamine and urea-formaldehyde parts for enclosure and housing makers. Every mould is engineered from DFM to first part, plus repairs and new inserts for die casting dies.
Inside a compression mould
A real Prime Tools compression mould for a red SMC part, built in our tool room. Drag to turn it.
Cut through the middle: the cavity above, the core below, the moulded part between them, and an ejector system in each half.
The press lifts the top half. Guide pillars and bushes keep both halves aligned to a fraction of a millimetre every cycle.
The cavity and core plates are heated, typically 140 to 160 °C for SMC. Under press load the charge flows, fills the cavity and cures.
The ejector plate drives the pins up and lifts the cured part off the core. A second ejector set in the top half stops it sticking to the cavity.
Plates, cavity, core, pressure pads, guide pins, bushes and ejector systems: designed, machined and fitted under one roof.
Scroll to open the mould · drag to rotate
We stay in our niche: not an injection mould shop, not a general job-work tool room.
Main line
For SMC, DMC, Bakelite, melamine and urea-formaldehyde parts: enclosures, meter boxes, switchgear and wiring-device housings.
See compression mouldsEnclosure bases, lids, meter boxes and large covers in sheet moulding compound.
See SMC mouldsSwitchgear parts, terminal blocks, wiring devices and BMC reflectors.
See DMC mouldsSecond line
Aluminium junction boxes, flameproof enclosure parts, LED housings and motor terminal boxes.
See die casting mouldsThese parts need flame retardance, electrical insulation, weather resistance and zero corrosion. That is exactly what thermosets and compression moulding deliver.
Flash, cracks, blisters and non-fill are mostly designed in before the first trial. Every part gets a DFM and feasibility report that checks:
Core and cavity are cut in-house from the approved design, then fitted and trialled by the same team.
Roughing and finishing on our BFW VMC, programmed from the approved mould design.
Fine ribs, slots and sharp internal details.
Plates and inserts ground flat and square on our HMT surface grinder.
Engraving, fitting and blue matching by hand, by people who care how the mould closes.
The mould is assembled, nameplated and readied for trial.
First-off parts approved before handover, then the mould is wrapped, loaded and sent to your press.
MIDC Ahilyanagar, Maharashtra. Design, machining, EDM, grinding and fitting under one roof.
Customer identity protected. Dimensions not shown. References available on request.
Real trials from our moulds: charge loaded, pressed, cured and released. You get the trial video and first-off parts before dispatch.
We tell you what will and won't work before we cut steel, even if it costs us the order.
The lead time we quote is a date we plan around and protect.
Your design, dimensions and name stay protected in every report, video and conversation.
Blue matching, fitting and finishing by hand.
Maintenance, modifications and spares through the mould's production life.
Products
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Products
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Processes
Compression molding explained by a mold maker: how the process works, which materials it uses, the four types of compression mold, design rules, costs,…
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