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Project overview
Single reference for the P6 industrial prototype and RFP structure.
Top-level assemblies
Overview of all top-level assemblies by colour (CAD colour key). Add image as Overview/images/top-level-assemblies.png when ready.

What P6 is
P6 is the current industrial prototype (Delijuice 870/970). Newest version; prototyping in China with design work via Jamieson. Extractors, deflectors, screw conveyors. Machine lineage: P3 → P4 → P5 (Brazil 2002, Sumitomo cyclo refs) → P6 (current). 323 = commercial/countertop (separate).
- Jiangxi (JX): Factory with LTA (Long Tai An). Miniplant: 8,160 L/h, 6 extractors, turbo-filter, pasteurizer. LTA pressure for operations by October.
- Drawings target: April 1st for Sean/YES fabrication (China, Shenzhen area).
How the machine works
Delijuice extraction cycle — the four steps (fruit intake, compression, juice outflow, plug expulsion) and stroke timing.
Subsystems (1–11)
Each subsystem has its own RFP section with photos, Q&A, and part/parameter details. Subassemblies are listed under each subsystem on the main index. CAD colour keys are per subsystem; use the legend on each subsystem page.
- 1. Frame — frame construction, three main loaded interface plates, intended assembly process (with exploded views)
- 2. Drivetrain — motor, reducer, gears and cam bearings, motor/drivetrain mount plate
- 3. Transmission system — transmission mount plate, drive shafts, yoke
- 4. Collection — static peelers, juice collectors, filter tube, plug cutter, static deflectors
- 5. Extraction & synchronisation — fruit support, driven peelers, driven bracket, chute deflectors
- 6. Intake feeder system — feeding subassembly, feeder body, entry tubes, feeder hinges
- 7. Plug ejection — plunger drive bracket, plungers, plunger drive system in side panels
- 8. Outflow / disposal — peel chute, core chutes, augers, deflectors
- 9. Enclosure / shell — plunger cover, drivetrain cover, overcentered hinges
- 10. Clean-in-place (CIP) — nozzles, pipes, third-party control
- 11. Controls and electronics — user panel, motor starter, safety switches, yoke position (TBD)
General design, manufacturing, and food-safety requirements
Materials, food safety, and surfaces
- Use food-safe materials in all food and splash zones (e.g. stainless steels and compatible polymers); avoid galvanic pairs and corrosive finishes.
- In food zones target surface roughness around Ra 0.8–1.6 μm so surfaces are cleanable and do not trap pulp.
- Follow NSF-style guidance: no shelves, pockets, or hidden areas in food or splash zones; all food and liquid must have a defined path to drain.
- Seal or weld all seams in food and splash zones so there are no capillary gaps; avoid lap joints and unsealed overlaps in these areas.
- Deburr all edges; no sharp edges or burrs exposed to operators or in any zone that can collect food.
Fasteners and joints
- Minimise the number of different fastener sizes; where practical restrict to M3, M5, M10, and M16 for increasing strength levels.
- Avoid exposed threads in food and splash zones; use standoffs, weld studs, or through-holes with nuts outside the zone.
- Prefer dowel pins for locating parts in shear; use shoulder bolts for joints that carry shear and rotation.
- Minimise total fastener count with shared brackets and clear load paths; design for easy disassembly and reassembly for cleaning.
Design for manufacturability
- Favour symmetric parts and avoid unnecessary handedness where possible.
- Minimise machining and secondary processing by using stock sizes, simple weldments, and laser/plasma-cut profiles.
- Specify tolerances sufficient for function; post-processing methods (e.g. grinding, honing, polishing) are selected by manufacturers to meet these tolerances.
Third-party and site integration (Jiangxi)
Compatible with existing third-party equipment. Jiangxi: Kaiyi or similar orange juicing line provider (line build + training). Equipment context: JBT Marel–style citrus processing; feed lines in China → assume interface with Chinese equipment. Interfaces: oranges in from their lines; peels out via their augers; juice to tanks/pumps.
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