Zinc Plating Services Rajkot | ISO 4042 Electroplating

Zinc electroplating is the most cost-effective corrosion protection for steel fasteners and components operating in mild-to-moderate corrosive environments. A 12-micron zinc layer with yellow trivalent chromate passivation stops visible rust for 96+ hours in ASTM B117 salt spray — enough for most outdoor automotive, agricultural, and general engineering applications. The advantage of in-house plating at Shivam Forge is simple: your components move from the forge shop directly to the plating line without leaving the Shapar campus, eliminating transit damage, contamination risk, and additional lead time.

Our plating plant runs barrel and rack lines suited to the range of components we produce. Barrel plating handles fasteners, pins, and small forgings in batches up to 200 kg — the tumble action ensures good coating uniformity on complex thread profiles and recesses. Rack plating handles larger forged brackets, shafts, and precision components where you cannot afford contact marks or thickness variation on critical surfaces. We make custom jigs in-house for regular components, ensuring consistent rack positioning from batch to batch. Throughput across both lines is substantial enough to handle regular production programmes from our automotive and agricultural customers.

Passivation type selection matters more than most buyers realise. Clear trivalent chromate (blue-bright) is preferred for assembly-critical parts where visual inspection or torque-tension relationships must be repeatable — the thin clear film adds negligible dimensional variation. Yellow trivalent chromate provides superior corrosion performance (96 hr vs 72 hr to first white corrosion) with a distinctive golden colour useful for visual identification. Black chromate is used for aesthetic or EMI-shielding applications. All three are RoHS-compliant trivalent formulations — no hexavalent chromate in any of our bath chemistry.

Integration with forging and CNC machining is where our in-house plating capability creates real value. An automotive customer ordering stub axles — forged, normalised, CNC-turned, shot-blasted, and zinc-plated — gets a single part number, a single purchase order, a single delivery, and a single quality record. There is no coordination overhead between multiple suppliers, no mismatched paperwork, and no finger-pointing when something goes wrong. Our quality system tracks each batch from billet heat number through to plating salt-spray result, so traceability is end-to-end.

If you are a manufacturer, OEM, or trading house looking for a reliable zinc plating partner in Rajkot or Gujarat, Shivam Forge is ready to discuss your requirement. We accept consignment plating (customer-supplied parts) and integrated forging-plus-plating orders. Call +91-9265772827 or email info@shivamforge.com with your specification and quantity. We will have a price and schedule back to you the same day.

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