Acceptance Test & Handover
Acceptance Criteria
The machine is ready for formal acceptance when all installation and startup steps are complete and the following criteria are met:
Mechanical Acceptance
| Criterion | Standard |
|---|---|
| Machine level | ≤ 0.10 mm/m in all directions |
| Tie bar elongation | All four bars within ±5% of each other |
| Tie bar nut torque | Per specification |
| Platen parallelism | ≤ 0.05 mm/m |
| Nozzle center alignment | Aligned with mold sprue bushing center |
| Guide rail clearance | 0.05–0.10 mm (per machine spec) |
| Screw / barrel alignment | Concentric within 0.10 mm |
| No abnormal vibration | < 2.5 mm/s at all measured points |
Hydraulic Acceptance
| Criterion | Standard |
|---|---|
| Oil level | 3/4 on sight glass |
| Oil temperature (at steady state) | 35–50°C |
| System pressure build time | < 5 seconds |
| Relief valve set pressure | Per machine spec (typically 140–175 bar) |
| No external leaks | Zero |
| Filter indicators | All in green zone |
Electrical Acceptance
| Criterion | Standard |
|---|---|
| Main voltage | 380V ± 10%, imbalance ≤ 3% |
| Control voltage 24 VDC | 23.5–25.0 VDC |
| Ground resistance | ≤ 4Ω |
| Motor insulation | ≥ 5MΩ at 500V |
| Cabinet temperature | < 45°C ambient |
| All cooling fans operational | Verified |
Process Acceptance
| Criterion | Standard |
|---|---|
| Shot weight repeatability (20 shots) | Cpk ≥ 1.33 |
| Cycle time | Within ± 5% of target |
| Temperature stability (all zones) | ± 2°C of setpoint |
| Part quality | No flash, short shots, sticking, or splay |
Documentation Handover
Provide the customer with the following documents:
| Document | Provided |
|---|---|
| Machine data sheet (as-installed) | ☐ |
| Installation log (leveling, torque, alignment records) | ☐ |
| Factory acceptance test report | ☐ |
| Calibration certificates (pressure transducers, temperature sensors) | ☐ |
| Electrical schematic (as-installed) | ☐ |
| Hydraulic schematic (as-installed) | ☐ |
| Spare parts list | ☐ |
| Warranty certificate | ☐ |
| Maintenance logbook | ☐ |
| Backup of parameters (USB) | ☐ |
Operator Training Checklist
| Topic | Trained | Remarks |
|---|---|---|
| Controller power ON/OFF sequence | ☐ | |
| Safety system operation | ☐ | |
| Manual mode operation | ☐ | |
| Semi-automatic cycle | ☐ | |
| Parameter setting and recipe save/load | ☐ | |
| Alarm reading and reset | ☐ | |
| Material change procedure | ☐ | |
| Color change procedure | ☐ | |
| Emergency stop procedure | ☐ | |
| Daily maintenance checklist | ☐ | |
| Basic troubleshooting | ☐ |
After Handover
- Schedule a follow-up visit after 500 hours of operation to verify the first oil change, check for leaks, and re-torque critical connections.
- Register the machine for warranty.
- Provide contact information for HWAMDA technical support and regional service engineers.
- If the HWAMDA Connect IoT module was installed, activate the account and verify data transmission.
A smooth installation and thorough acceptance test reduce future service calls by 60–80%. Take the time to document everything, train the operators properly, and address any concerns before signing off.