sop for operation and cleaning of multi mill

admin

2 hours ago

sop for operation and cleaning of multi mill

Purpose
1.1 To lay down a procedure for Operation and Cleaning of Multi mill.
2.0 Scope
2.1 This SOP is applicable for Operation and Cleaning of Multi mill in ABC Pvt. Ltd., Roorkee (UK), India.
3.0 Responsibility
3.1 Machine Operator To execute the procedure.
Production & QA officer Follow the procedure as per SOP
Head Production Training and Implementation of SOP

4.0 Accountability
4.1 Production Head is accountable for compliance of this SOP.
5.0 Procedure
5.1 Pre-Startup
5.1.1 Check the cleanliness of the granulation Area.
5.1.2 Check the material lying in the Area is of the same batch to proceed.
5.1.3 Update the status board of the area “UNDER PROCESS”.
5.1.4 Check the cleanliness of the room / MULTIMILL and ensure that the area / MULTIMILL is free from

any remnants of the previous product.
5.1.5 Check and ensure the availability of the rinse water/swab sample analysis report and

attached in batch manufacturing record.

5.2 Operation
5.2.1 Remove “CLEANED” label from the multimill.
5.2.2 Tie the poly bag with lower size discharge port by using nylon thread.
5.2.3 Switch “ON” the main supply, start machine.
5.2.4 Load the material in inlet feed chute by using scoops & milling is start.
5.2.5 Collect the milled material in double lined poly bag and insert “product identity slip” label

within the double lined polybags.
5.2.6 Continue the operation till the process is completed.
5.2.7 Update status label on the Multi mill as “TO BE CLEANED”.
5.2.8 Record the activity in the log book.
5.3 Cleaning
5.3.1 Type A: Product to product changeover
5.3.1.1 Update the status board as “UNDER CLEANING”.
5.3.1.2 Switch ‘OFF’ the main supply.
5.3.1.3 Remove loosely sticked powder from the machine by using SS scraper.
5.3.1.4 Clean the body of the Multi mill using vacuum cleaner.
5.3.1.5 Dismantle the machine in the following sequence: –
5.3.1.5.1 Upper feeding hoper
5.3.1.5.2 SS clamps
5.3.1.5.3 Blades
5.3.1.5.4 Screen
5.3.1.5.5 Lower feeding hopper.
5.4 1.5 Wash the dismantled parts by using 50 liters of Raw water & scrubbed the blade whenever

required by SS scrapper and then wash with 30 liters of purified water and again finally rinse with 50 liters of purified water.
5.4.1.6 Assemble the cleaned dismantled parts.
5.4.1.7 Record the cleaning details in the log book.
5.4.1.13 If the Multimill not use within 72 hrs. after cleaning, then reclean the multimill with purified water before use.
5.3.2 Type-B: for batch-to-batch change over
5.3.2.1 Update the status board as “UNDER CLEANING”
5.3.2.2 Switch ‘OFF’ the main supply of machine.
5.3.2.3 Remove all the material from the Multi mill after dismantling it.
5.3.2.4 Clean the body of the Multi mill using vacuum cleaner or clean dry lint free cloth.
5.3.2.5 De-dust all the SS parts with vacuum cleaner or clean dry lint free cloth and remove material

stuck with the help of SS Scraper.
5.3.2.6 If the multimill not use within 24 hours, then re clean the multimill with purified water
before use
5.3.2.7 Record the activity in the log book

5.4 Drying Procedure
5.4.1 After cleaning of Multimill, it should be dried as per following procedure
5.4.1.1 Mop the Multimill from inner and outer side, its dismantle accessories with lint free cloth.
5.4.1.2 Connect PU pipe to compressed air line.
5.4.1.3 Open the valve of compressed air line and set the pressure at 3.0 kg/cm2.
5.4.1.4 Dry the equipment and its dismantle accessories by compressed air.
5.4.1.5 Ensure the complete dryness of machine and its accessories.
5.4.1.6 Affix cleaned status label on machine after ensuring complete drying.
5.4.1.7 Always kept the machine well closed while not in use.

6.0 References:
In-house

7.0 Attachment
Nil

8.0 Distribution:
8.1 Distribution of the controlled copy of the SOP shall be made by concerned departments.
8.2 Additional copies may be issued for specific purpose.

9.0 Abbreviations:
SOP : Standard Operating Procedure
QA : Quality Assurance
QC : Quality Control
SS : Stainless Steel

10.0 Revision History