Meeting homologation deadlines in the automotive industry is a race against time, where tooling delays can jeopardize entire programs. This case study highlights how a Tier‑1 supplier partnered with Marcopolo to deliver 60 exterior parts in end‑use plastic within just 52 days — enabling successful ARAI homologation without compromise. Through integrated soft tooling, moulding, and post‑processing, Marcopolo ensured high‑quality, homologation‑grade components that met strict deadlines, absorbed engineering changes, and passed fitment and functional requirements for pre‑series supply.

When an automotive homologation deadline is fixed, every day lost to tooling delays risks the entire program. This case study shows how a Tier-1 supplier secured ARAI approval on time — with 60 sets of exterior parts delivered in end-use plastic within 52 days.

When an automotive Tier-1 supplier needed tooled-up exterior parts in end-use plastic for ARAI homologation testing — with a 55-day deadline and A-surface finish requirements — Marcopolo delivered T0 Trial on the largest tools (1,200mm part size) in 52 days, with 60 sets passing fitment and functional requirements at T1 for low-volume pre-series supply.

Marcopolo Products Private Limited is a 25+ year specialist in soft tooling, injection moulding, and automotive prototyping, with 1,400+ tools developed for OEMs and Tier-1 suppliers across India and globally.

A Tier-1 automotive supplier was working against a strict deadline for ARAI testing on a facelift model. Tooled-up parts in end-use plastic were required within 55 days — homologation-grade components in final production material and finish, not prototypes.

The parts required post-processing including chrome plating, hot stamping, and glossy black paint. The bumper assembly on the proto vehicle had to pass gap and flush qualification. Any A-surface defect would have failed the program. A mid-program engineering change had to be absorbed without impacting the delivery schedule.

Tool Material: Aluminium
Part Material: ABS, ASA

ASA was selected alongside ABS for its UV and weathering resistance — a critical requirement for exterior components destined for on-road testing and homologation validation in an outdoor environment.

DFM and Moldflow analysis were completed in 4 days before any machining began, identifying geometry and gating issues upfront and eliminating costly trial-and-error from the tool development cycle. A common mould base and hot runner system were planned across similar parts, reducing tooling cost and consolidating the program onto a single timeline.

Tool manufacturing proceeded as per the original schedule. A minor ECN was accommodated mid-program without impacting delivery. The largest tools — handling parts up to 1,200mm, run on 1,000T injection moulding machines — went to T0 Trial in 52 days.

Post-processing — chrome plating, hot stamping, glossy black paint — was managed end-to-end by Marcopolo. Dimensional inspection using CMM and VMM validated A-surface quality and part geometry before parts were released for post-processing.

“Marcopolo delivered exactly what we needed: homologation-grade parts on time, with no surface defects, and absorbed a late design change without missing our ARAI deadline.”
— Program Manager, Tier-1 Automotive Supplier

• T0 Trial on largest tools (1,200mm) completed in 52 days against a 55-day requirement
• 60 sets produced at T1 for low-volume pre-series supply — all passing fitment and functional requirements
• All parts assembled on bumper and qualified for gap and flush on the proto vehicle
• Post-processing completed with no visual defects across all parts
• ECN accommodated mid-program with zero impact on delivery schedule
• Client met ARAI homologation deadline without program delay

• Start DFM before tooling begins – 4 days of analysis eliminated weeks of trial-and-error
• Choose materials for the end-use environment – ASA provided UV resistance that ABS alone could not
• Keep post-processing under the same roof – single accountability for surface defects
• Plan for ECNs – mid-program changes are normal; your tooling partner must absorb them without schedule impact

The differentiator was not speed alone. DFM completed in 4 days, ECN absorbed without schedule impact, dimensional inspection in-house, and post-processing managed under the same program — one automotive tooling partner in India owning the entire delivery chain from tool design to homologation-ready assembly.

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