Which controller photos should a buyer request for a used Yizumi machine?
Request the controller boot or system page, active alarm page, manual-operation page, temperature page after heating, I/O monitor, mold data page, servo or hydraulic status page if available, and communication or robot-interface evidence. These screens help shortlist a used Yizumi machine, but they do not prove full production readiness without mechanical, hydraulic, electrical, safety and mold-specific testing.
Decision checklist
- Connect every controller photo to the same nameplate and full machine view.
- Ask for alarm, manual-operation, temperature and I/O evidence before deposit discussion.
- Treat controller version, hours, cycle count, price, stock and condition as NEEDS_EVIDENCE until documented.
- Use controller evidence to decide whether deeper inspection is worth arranging.
Why controller evidence matters
Yizumi product materials show that controller and HMI features differ by series and configuration. SKII materials refer to an MH9118 controller, an 8-inch TFT LCD, USB storage of molding data and process parameter statistics. A5 materials describe an upgraded KEBA system with module expansion, sensor-signal monitoring and communication interfaces such as RS232/485, CANopen, Ethernet and USB.
Those references help buyers know what kinds of functions may appear in product literature. They do not prove what is installed on a used machine. A used press may have a changed controller, replaced display, missing communication module, locked language screen, hidden alarms or modified electrical cabinet.
Yizumi is a third-party trademark here and is used only for independent used-machine identification and buyer verification.
Controller photos to request
Ask for screenshots and videos that support a buying decision, not random close-ups of the cabinet. The controller boot or system page helps confirm controller family, language and software clues. The active alarm page shows the fault state at the time of the photo or video.
Manual-operation pages can connect controller commands to visible mold, injection, ejector and carriage movements. Temperature pages after heating show set and actual barrel-zone values. I/O monitor pages help assess sensor and actuator signal visibility. Mold data, servo or hydraulic status, communication and robot-interface pages should be requested when those functions matter to the buyer's production cell.
- Boot or system information page
- Active alarm page
- Manual operation page during movement
- Temperature page after warm-up
- I/O monitor and mold data pages
- Servo, hydraulic, communication or robot interface pages when available
How to request the video
Ask the seller to record one continuous video that starts at the nameplate, moves to the electrical cabinet and controller, then shows the relevant screens while the machine performs manual movements. The goal is to connect identity, controller and motion to the same machine.
A practical sequence is nameplate, full machine view, controller boot page, alarm page, heating screen, manual mold open/close, ejector, carriage and screw rotation screens, servo or hydraulic status page if available, mold data page, then return to the full machine view.
What not to infer
Do not infer low operating hours from a clean HMI. Do not infer screw/barrel condition from a controller that boots. Do not infer energy consumption from a product brochure or a seller statement. Do not infer automation readiness from one socket photo without checking the controller, electrical cabinet, robot interface and buyer's cell layout.
Use NEEDS_EVIDENCE for year, operating hours, cycle count, controller version, software changes, board replacement, servo-drive replacement, alarm history, price, inventory status, completed maintenance, test results and shipment readiness unless the seller provides direct records.
Technical limitations
A controller screen is a snapshot, not a full inspection. Screen names can differ by series, language, controller version or retrofit history. The absence of an alarm on one page does not prove every safety circuit, sensor and actuator is correct.
ISO 20430 and local safety rules should be considered during machine assessment and installation. OSHA hazardous-energy guidance is relevant when inspection or service exposes workers to stored electrical, hydraulic, pneumatic or mechanical energy.
Common buyer questions
Does a controller photo prove the used Yizumi machine is ready for production?
No. It can prove useful evidence about identity, alarms and available screens. Production readiness still requires mechanical, hydraulic, electrical, safety and mold-specific testing.
Should the buyer ask for the alarm page even if the seller says there is no alarm?
Yes. A readable alarm page or continuous video is a stronger record than a text statement.
Can a changed controller be acceptable?
Possibly, but it must be documented. The buyer should understand who changed it, why, whether wiring and safety functions were reviewed, and whether service support is available in the destination market.
Sources and references used for this guide
This guide supports early project planning. Final machine selection and commercial configuration must be confirmed from the actual part, mold, material, factory utilities and production target.
