Anodising Plant Cost Benchmarks, India — 2026
Almost everything published about anodising is process knowledge, and process knowledge is already written down. ISO 2143, MIL-A-8625 and IS 1868 exist, and anyone can read them. What is not written down anywhere is what a line actually costs in India — what a tank quotes at per kilolitre, what a rectifier quotes at per ampere, what a percentage point of reject rate takes off the bottom line in a year.
Those numbers normally live inside quotations and inside the heads of the people who have commissioned plants. This page publishes the set Saravana Consultancy uses when it builds a client business case, so that the person costing their first line has something to check their vendor's quote against.
Where they come from. Balasubramanian Iyer’s commissioning record in Indian aluminium surface treatment — 10+ plants commissioned across India — together with operating data from Spectra Metal Shield, an active hard anodising facility in Mumbai. Where a figure is a planning convention rather than an observed cost, it is described as such in the section it appears in.
1. Capital unit rates
Capital cost is best built bottom-up from unit rates rather than guessed as a lump sum, because the single largest swing factor — tank geometry — is set by the longest object you intend to process, not by your capacity target.
| Item | Rate | Notes |
|---|---|---|
| Anodising tank — polypropylene | ₹65,000–95,000 per kL | Standard for sulphuric Type II service |
| Anodising tank — rubber-lined MS | ₹110,000–160,000 per kL | Where mechanical duty or size rules out PP |
| DC rectifier — 12–30 V | ₹800–1,200 per A | Type II decorative and architectural service |
| DC rectifier — 60–100 V | ₹1,400–1,900 per A | Type III hard anodising; higher bath voltage |
| Process chiller | ₹60,000–80,000 per kWth | Sized on bath heat load, not on floor area |
| Effluent treatment plant | ₹8–15 lakh base + ₹1.2 lakh per kL/day | Neutralisation plus chemical precipitation |
| Civil work and shed | ₹1,800–2,800 per sq.ft | Tier-2 industrial construction |
On ETP, a second figure is worth holding alongside the rate above: a medium line typically lands at ₹15–30 lakh all-in once capacity is added to the base, with a further ₹5–8 lakh for the demineralised water plant feeding the rinses. The DM plant is the item most often left out of a first-pass budget, and it is not optional — rinse water quality shows up directly in sealing quality.
2. Whole-plant capital cost
Four configurations, useful as an order-of-magnitude check before any drawings exist:
| Configuration | Capacity | Capital cost |
|---|---|---|
| Manual Type II line | 50 sq.m/day | ₹25–50 lakh |
| Semi-automatic Type II line | 200 sq.m/day | ₹75 lakh – 1.5 crore |
| Fully automatic Type II line | 500 sq.m/day | ₹2–3.5 crore |
| Type III hard anodising line | Equivalent capacity | Add 20–30% |
The hard-anodising premium is not a markup. It is rectifier capacity at higher bath voltage plus a materially larger chiller, because a hard line rejects several times the heat of a decorative one.
Beyond the equipment, budget working capital at 15–20% of capital cost for opening chemical inventory and receivables. See section 5 — that number moves depending on whether the line is captive or job work, and it moves a lot.
3. Operating cost per square metre
Variable cost is where a business case is normally wrong, because power is quoted per unit and consumed per square metre, and the conversion between the two is where hard anodising stops resembling Type II at all.
| Component | Type II sulphuric | Type III hard |
|---|---|---|
| Process power | ~3.5 kWh/sq.m | 14–18 kWh/sq.m |
| Chemicals | ₹20–25 /sq.m | ~₹45 /sq.m |
| DM water, ETP dosing, jig wear | ₹10–12 /sq.m | ₹10–12 /sq.m |
| Total variable cost | ₹60–90 /sq.m | ₹190–260 /sq.m |
A combined line running both processes averages around ₹30 per sq.m of chemicals. Labour, maintenance and administration sit on top as fixed cost. Power dominates hard anodising to the point that the industrial tariff you are offered can decide whether a hard line is viable at your location at all.
Fixed cost ratios
For a first-pass model, maintenance runs about 3% of capital cost per year and administration plus insurance about 2.5%.
4. What a reject actually costs
This is the single most under-modelled number in the industry, because a reject costs twice: the revenue is lost, and the power, chemicals and labour have already been spent on work that then gets scrapped.
That last clause is the part worth arguing with your own plant about. Reject rates are routinely blamed on the line when they were decided at the point the metal was purchased.
5. Captive versus job work
These are two different financial objects and modelling them the same way is the most common error in an anodising business case.
| Job work | Captive | |
|---|---|---|
| Revenue | Billed per sq.m processed | None — the line bills nobody |
| Return comes from | Job-work income | Outsourcing spend avoided, reject and rework avoided, and market tier unlocked |
| Working capital | ~18% of capex | ~10% of capex |
| Why | Chemical inventory plus roughly 60 days receivables | Chemical inventory only |
The largest term in a captive case is usually the last one: work the company could not previously quote for at all, because it had no anodising capability. A captive line valued at job-work rates is understated, and often understated enough to kill a project that should have gone ahead.
6. Scope and limits
Ranges this wide are honest rather than vague. What moves a figure inside its range:
- Tank cost moves on the longest object you process. A 6.5 m profile line and a cookware line at the same tonnage are not the same tank.
- Rectifier cost moves on surface area per rack and on target coating thickness, not on tonnage.
- Civil cost is quoted here for tier-2 industrial construction. Metropolitan land and construction rates sit well above this.
- Power assumes an industrial tariff. Captive solar, open access or a state incentive changes the hard-anodising case materially.
- Excluded: land, statutory approvals, consent-to-operate costs, sanctioned load augmentation, and any finishing operation downstream of anodising.
Run your own configuration through the anodising plant cost and payback estimator, which uses these same rates and adds payback period, ROCE and break-even.
7. Using and citing this data
These figures are published to be used. Quote them, check a vendor quotation against them, or put them in a board paper — with attribution.
Saravana Consultancy (2026). Anodising Plant Cost Benchmarks, India, version 2026.08.
https://www.saravanaconsultancy.in/data/anodising-plant-benchmarks-india
If you have commissioned a line in India and your numbers differ from these, we want to know. Corrections against real quotations are the only way a benchmark set stays worth publishing, and contributed figures are aggregated, never attributed to a company by name.