STANDARD OPERATING PROCEDURE: INJECTION MOLDING PROCESS & QUALITY CONTROL

Document ID: SOP-IM-[____]
Effective Date: [____]
Revision Number: [____]

---

1. PURPOSE AND SCOPE

This Standard Operating Procedure (SOP) establishes the mandatory requirements for the operation, monitoring, and quality control of injection molding processes at [Company Name]. This document ensures compliance with [ISO/AS/Regulatory Standard] and ensures consistent product quality, equipment safety, and operational efficiency.

2. EQUIPMENT AND MATERIAL SPECIFICATIONS

• Injection Molding Machine (IMM): [Make/Model/Serial Number]
• Molding Material (Resin/Polymer): [Grade/Type/Manufacturer]
• Mold/Tooling Identification: [Tool ID Number]
• Ancillary Equipment: [e.g., Dryer, Chiller, Robot, Thermolator]

3. PROCESS PARAMETERS (SETPOINTS)

Operators must strictly adhere to the following approved process parameters. Any deviation exceeding [____]% requires immediate supervisor notification.

Parameter	Setpoint	Tolerance (+/-)
Melt Temperature	[____] °C/F	[____]
Mold Temperature	[____] °C/F	[____]
Injection Pressure	[____] PSI/Bar	[____]
Hold Pressure	[____] PSI/Bar	[____]
Cooling Time	[____] Seconds	[____]
Injection Speed	[____] mm/s	[____]

4. QUALITY CONTROL AND INSPECTION PROTOCOL

Quality inspections shall be conducted at the following frequency: [e.g., Every 30 minutes / Every 50 pieces].

• Visual Inspection Criteria: Ensure parts are free of short shots, flash, sink marks, discoloration, and contamination.
• Dimensional Verification: Measured via [Tool Type, e.g., Caliper/CMM] per the Engineering Drawing [Drawing ID].
• Non-Conforming Product: Any product failing inspection must be labeled "REJECT" and placed in the designated red-bin area located at [Location].

5. SAFETY AND EMERGENCY PROCEDURES

• Personal Protective Equipment (PPE): Safety glasses, heat-resistant gloves, and steel-toed boots are mandatory.
• Emergency Shutdown: In the event of an equipment malfunction, press the [Emergency Stop Button Location] immediately.
• Reporting: All safety incidents must be reported to the Safety Officer: [Name of Safety Officer].

6. MAINTENANCE AND DOCUMENTATION

• Daily Maintenance: Clean the mold faces, inspect hoses for leaks, and clear the hopper area.
• Logbook: Every shift change requires an entry in the Production Logbook, noting [Cycle Counts / Material Usage / Downtime Events].

---

7. AUTHORIZATION AND ACKNOWLEDGMENT

Prepared By:
Name: [____________________]
Title: [____________________]
Date: [____________________]

Approved By (Quality Assurance):
Name: [____________________]
Title: [____________________]
Signature: __________________________
Date: [____________________]

Approved By (Operations Management):
Name: [____________________]
Title: [____________________]
Signature: __________________________
Date: [____________________]

---

CONFIDENTIALITY NOTICE: This document contains proprietary information belonging to [Company Name]. Unauthorized distribution or reproduction without express written consent is strictly prohibited.