Lead‑time counts from signed technical agreement + deposit receipt to factory FAT (factory acceptance test) ready‑for‑shipment, excludes ocean freight, customs clearance, on‑site installation and commissioning. ATH mills almost always require special upgrades: water‑jacket cooling, ceramic liners, PLC temperature interlock; these add lead‑time versus standard general‑purpose mineral mills.
Typical lead‑time by mill type (Chinese domestic reputable powder equipment vendor)
| Equipment Type | Standard alloy configuration | Cable‑grade full‑ceramic upgraded for ATH | Notes |
|---|---|---|---|
| Ring‑roller mill | 30‑45 working days | 45‑70 working days | Ceramic rollers/rings are long‑lead critical parts |
| ACM air classifier mill | 30‑45 working days | 45‑65 working days | Ceramic hammers & zirconia classifier wheel extend cycle |
| Fluidized‑bed opposed jet mill | 40‑60 working days | 60‑90 working days | Precision ceramic nozzles + turbine wheel long procurement cycle |
| Spiral jet mill (lab/pilot) | 25‑40 working days | 35‑55 working days | Small‑scale unit |
| Wet circulation bead mill (sub‑micron ATH) | 35‑50 working days | 45‑65 working days | Zirconia chamber & beads procurement |
| Complete turn‑key closed‑circuit ATH production line (mill + flash dryer + feeding + dust collection + PLC) | 60‑90 working days | 90‑120 working days | Includes engineering layout, auxiliary equipment integration |
Western / European brand: add 12‑20 weeks additional lead‑time, longer for ceramic custom wear‑parts.
Key factors that extend ATH mill lead‑time
- Ceramic wear‑part upgrade (biggest impact)
Alumina / zirconia components are not off‑the‑shelf stock for most sizes; custom sintering & machining cycle adds 15‑30 days. This applies for cable‑grade low‑Fe ATH requirement. - Special ATH‑specific modifications
Water‑jacket cooling housing modification, multi‑point temperature sensors, PLC temperature interlock alarm, anti‑caking internal geometry, magnetic separator integration, inert‑gas / explosion‑proof design. Each special modification adds 5‑15 days. - Peak season & supply‑chain
Q4 industry peak season can push lead‑time +20‑30 %. Large‑size motors, frequency inverters may have component backlog. - Project scope
Single host machine vs full turn‑key system; full production line requires mechanical‑electrical‑automation engineering drawing approval cycle before manufacturing starts. - Customer drawing review cycle
Delayed technical‑agreement / drawing sign‑off from buyer directly pushes back delivery date.
Total project timeline (real‑world ATH project reference)
- Quotation & technical‑spec negotiation: 1‑3 weeks
- Contract sign‑off, deposit payment, drawing approval: 2‑4 weeks
- Equipment manufacturing & FAT: see table above
- Ocean freight (export): 4‑8 weeks (depends destination port)
- On‑site installation, commissioning, ATH material trial run: 2‑4 weeks
For export turn‑key ATH line, total project calendar time from PO to commercial acceptance is commonly 5‑8 months.
Practical procurement tips
- Do not rely on “standard‑model short lead‑time” quotes; explicitly state ATH requirements: heat‑sensitive, max material temperature ≤110 °C, low‑iron cable‑grade, ceramic liners, cooling jacket, temperature interlock; get lead‑time confirmed in formal technical appendix.
- Critical ceramic wear‑parts can be pre‑ordered to shorten overall project schedule.
- Urgent expedite order: possible for some vendors, typically +10‑20 % cost premium, can cut manufacturing lead‑time by ~10‑15 days; cannot skip ceramic sintering minimum cycle.
- Spare‑parts lead‑time: common alloy spare parts 7‑15 days; ceramic spare parts 25‑45 days.
Summary
- Single host mill (alloy, general‑grade ATH): 30‑45 working‑days ex‑factory.
- Single host mill (ceramic‑upgraded for cable‑grade ATH): 45‑90 working‑days, jet mill sits on upper end of this range.
- Full closed‑circuit ATH turn‑key production line: 90‑120 working‑days ex‑factory.
- Export full project including shipping & commissioning: plan 5‑8 calendar months.
