Capacity Ranges by Plant Type
Recommended starting capacity ranges for the four e-waste recycling plant types — mechanical (2–5 TPD), PCB (0.5–2 TPD), pyrometallurgical (1–5 TPD), and hydrometallurgical (50–500 kg/day of concentrate) — with the commercial and operational reasoning for each range.
| Plant Type | Recommended Starting Capacity | Why That Range |
|---|---|---|
| Mechanical Recycling Plant | 2–5 TPD | Volume-driven — needs throughput to make low-margin streams (steel, plastic) work commercially. Below 2 TPD, fixed costs eat margin. Above 5 TPD, capex jumps significantly. |
| PCB Recycling Plant | 0.5–2 TPD of PCB feedstock | Low physical throughput, high value density. Limited by PCB supply, not machinery. Most PCB plants are co-located with mechanical or hydro. |
| Pyrometallurgical Recycling Plant | 1–3 TPD non-ferrous-only / 3–5 TPD combined | Heavy infrastructure (EAF needs 30–80 MW). Below 1 TPD, the furnace energy cost per tonne is uneconomical. Best as add-on to existing mechanical operation. |
| Hydrometallurgical Recycling Plant | 50–500 kg/day of concentrate | Smallest physical throughput, highest value density (precious metals at 99.9% purity). Limited by concentrate supply. Capacity in kg, not TPD. |
Beyond definitions
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How to read this table
- Each row is one plant type; columns show the plant type, recommended starting capacity, and the rationale for that range.
- Hydrometallurgical capacity is in kg/day of concentrate, not TPD — this reflects the small physical volume but high value density of precious-metal processing.
- These are starting ranges — all plant types can be scaled up as operations stabilise and feedstock supply grows.
About this table
Each of the four e-waste plant types has a different optimal starting capacity — driven by its own economics, feedstock constraints, and infrastructure requirements. This table gives the recommended range and explains why that range makes commercial sense. Undersizing creates uneconomical fixed-cost overhead; oversizing creates capital inefficiency and strains feedstock availability in the early operating months.
The Mechanical Recycling Plant starting range of 2–5 TPD reflects volume economics: at below 2 TPD, fixed costs (salaries, rent, utilities, compliance) cannot be absorbed by the revenue from the metal and plastic output streams at prevailing market prices. Above 5 TPD for a first plant, the capital investment jumps significantly and the feedstock requirement becomes harder to secure in early months when buyer relationships and aggregator contracts are still being established. Most first-time operators target 2–3 TPD to start and scale toward 5 TPD as operations stabilise. PCB Recycling Plants at 0.5–2 TPD of PCB feedstock reflect supply constraints rather than economic ones — the limiting factor is how much high-grade PCB e-waste can be consistently procured through EPR aggregators and corporate IT disposal channels, not equipment capacity.
Pyrometallurgical Plants at 1–3 TPD for non-ferrous-only operations and 3–5 TPD for combined ferrous and non-ferrous reflect the heavy infrastructure of Electric Arc Furnace operations — below 1 TPD, the energy cost per tonne in a 30–80 MW furnace makes the economics unworkable. Pyrometallurgical plants are almost always additions to an existing mechanical plant rather than standalone operations. Hydrometallurgical Plants are measured in kg/day of precious-metal concentrate, not tonnes per day of raw material — 50–500 kg/day of concentrate represents a wide range because the actual daily volume depends entirely on the upstream PCB plant's output, which itself depends on PCB feedstock availability.
Key insights
- Mechanical recycling starting at 2–5 TPD is driven by fixed-cost coverage, not equipment availability — below 2 TPD, the gross margin from metal and plastic sales cannot cover a viable operating cost structure.
- PCB plant capacity is supply-constrained, not demand-constrained — operators routinely find that procuring 0.5–2 TPD of high-grade PCB feedstock is the binding constraint, not the equipment's nameplate capacity.
- Pyrometallurgical plants need an existing mechanical plant as a feedstock supplier — starting a pyro plant without a reliable upstream source of ferrous and non-ferrous scrap creates an immediate feedstock gap.
- Hydrometallurgical plants at 50–500 kg/day produce the highest revenue per unit of physical throughput of any e-waste plant — the business case is built on the price of gold and palladium per gram, not on tonnes per day.
Methodology & sources
Capacity ranges are based on typical first-plant operating economics and feedstock availability patterns for Indian e-waste recycling businesses as described in course materials. Actual viable starting capacity depends on the operator's specific location, available feedstock contracts, capital position, and target output markets. These ranges should be refined with a Detailed Project Report (DPR) before making capital commitments.
Related data tables
Multi-Line Capacity Worked Examples
Two worked examples of the CPCB multi-line capacity formula for e-waste recycling plants — one with all-independent lines and one mixing independent and dependent lines — showing how only the independent line throughputs are summed to reach the SPCB authorised capacity.
Scaling Approaches Comparison
A side-by-side comparison of two e-waste recycling business scaling paths — Metals-First and Precious-Metals-First — showing the six-step plant addition sequence for each approach and where the two paths diverge at Steps 3 and 4.
Single-Line Capacity Worked Example
A step-by-step worked example of the CPCB single-line capacity formula for an e-waste recycling plant — showing how a 4 TPH bottleneck stage, 20 operating hours per day, and 330 operating days per year combine to give an authorised capacity of 46,200 TPA.
Total Equipment Capex by Plant Type
Master capex reference for four e-waste recycling plant types — mechanical, PCB, pyrometallurgical, and hydrometallurgical — showing required equipment, indicative total machinery investment, skill profile, and ideal operator profile for each plant type.