Press hall laid out 60/40 for Duplex systems (special pressings first)

User (October 2026): "the factory should have more space for duplex
setups than classic, we will mainly focus on special prints and not mono
colours plan it to be 60/40 duplex classic".

- Press hall (~870 m2) planned 60/40 by floor: four Duplex bays along the
  visitor corridor and six Classic positions in the second row (440 + 300
  = ~740 m2 at 110 / 50 m2), the rest open for mould carts and staging;
  the launch plant fills one of each, growth adds Duplex systems first.
  Replaces "room for ten more Classics".
- Full hall: 8 semi-automatic presses + 6 Classics, 57/43 by press count,
  ~1,250 to 1,410 records/h gross, ~3.6 to 4.7M a year on the scale.md
  basis (was 4.7 to 5.8M for 2 Duplex + 11 Classics); ~2.1 to 2.5 t/h
  steam and up to ~1.8 MW cooling, still a utility phase of its own.
  By hourly output the six automatic Classics still press more than the
  eight semi-automatic presses (estimate).
- pressing-line.md, scale.md (capacity table, utilities), site-candidates
  .md, crane-workshop-tours.md, roadmap.md, README (the FreeCAD Payap
  model still draws the earlier layout; noted, not redrawn).
- Calculator: preset "Full hall 60/40 (4 D + 6 C)", fleet ladder Duplex
  first (1+1, 2+1, 3+2, 4+3, 4+6) plus the same floor Classic-led (2+11)
  and Duplex-only (7+0) for comparison; plant view reserves 4 Duplex
  bays and 6 Classic positions.
- Business plan draft 0.2 rebuilt (capacity table row, plot fit, layout).

Checks: renderer 720 checks pass (node budget 2,700 for the Duplex-heavy
stress preset, 60 fps), calculator regression 0 fails, level selector and
page checks clean at 390 / 1024 / 1440 px dark and light; PDF 47 pages
with a filled table of contents.

docs/scale.md

@@ -11,7 +11,7 @@ page as real quotes and the site decision land.
 |---|---|---|
 | Launch plant (decided October 2026) | 2 semi-auto (Duplex system 1: EX 50 main + EX 35 colour extruder) + 1 automated (Newbilt Classic), commissioned in sequence, 2 shifts at volume | ~0.71 to 0.97 million records/yr |
 | Growth option: second Duplex | 4 semi-auto (two Duplex systems) + 1 Classic, 2 shifts; room reserved, not in the investment | ~1.0 to 1.5 million records/yr |
-| Expansion (option) | the five-press fleet + up to 10 more Newbilt Classics, 2 shifts | ~4.7 to 5.8 million records/yr (estimate) |
+| Full hall (option) | 4 Duplex systems + 6 Classics, the hall laid out 60/40 for Duplex, 2 shifts | ~3.6 to 4.7 million records/yr (estimate) |
 
 The [press fleet calculator](fleet-calculator.html) sizes the fleet for
 any yearly output and specials share, with the people and utilities it
@@ -44,10 +44,14 @@ effectiveness of 60 to 70% applied: 368 to 448 records/hour, ~1.06 to 1.5
 million a year. The theoretical ceiling of the mature fleet at 100% uptime
 is roughly 1.8 to 2.2 million records per year. (The earlier 50/50 fleet,
 two semi-automatic presses and two Pheenix AD12s, landed in the same
-range.) The expansion row is an option the plant keeps room for, not a
-plan: ten more Classics add ~1,280 records/hour on the same basis, and
-neither the [revenue model](finance/revenue-model.md) nor the investment
-includes them.
+range.) The full-hall row is an option the plant keeps room for, not a
+plan: the press hall is laid out 60/40 by floor for Duplex systems, since
+the plant focuses on special pressings
+([pressing line](equipment/pressing-line.md)). Eight semi-automatic
+presses and six Classics give 1,250 to 1,410 records/hour gross, ~3.6 to
+4.7 million a year on the same basis, and neither the
+[revenue model](finance/revenue-model.md) nor the investment includes
+them.
 
 **The 60–70% effectiveness assumption is worth challenging, but not yet
 changing.** Newbilt publishes ≥95% yield and ≥95% uptime for the Classic
@@ -254,8 +258,9 @@ kW hydraulic oil cooler) at 305 to 540 l/min of circulating water. The
 peak rows assume all five presses cooling hard on a hot afternoon; the
 Classic counts as one HRP 12 press plus one extruder until Newbilt states
 its figures. The presses share one central hydraulic plant and one
-compressed-air plant. The optional ten more Classics would need up to ~1.9
-MW of cooling and ~2.3 to 2.7 t/h of steam: a utility phase of its own.
+compressed-air plant. The optional full hall (four Duplex systems and six
+Classics, fourteen presses) would need up to ~1.8 MW of cooling and ~2.1
+to 2.5 t/h of steam: a utility phase of its own.
 
 Tariff: PEA Schedule 3.2.2, Medium General Service on time of use at
 22 kV (the flat rate is closed to new customers): 132.93 THB/kW demand