Tuesday, April 20, 2021

Operation Bulletin of a Basic T-shirt with Machine Layout Plan

 Introduction: Operation Bulletin is a summary of the whole production process. In this document, the industrial engineers who work as layout planner listed all the required things to produce a garment. They make a summary of types of machine, no. of the machine and worker needs to complete the garment in the sewing line. 


Operation Bulletin of a Basic T-shirt with Machine Layout Plan
Basic T-shirt
Common information listed in the machine layout plan:
  • Name of the operation.
  • Cycle time.
  • Calculated production.
  • Hourly production target.
  • Types of machine used for each operation
  • Types of operation done manually by the worker.
  • No. of machine required for each operation.
  • No. of worker required for each operation.


Machine Layout plan of a Basic T-shirt: In a machine Layout plan some information is listed by the following table;


SL. No.Name of OperationCycle TimeCalculated ProductionTarget/Hr.M/C TypeM/C RequiredWorker Required
1Care Label Attach With Back Part0.20300190SNL11
2Front & Back Part Match0.18333200MNL-1
3Shoulder Joining0.331811904OL22
4Neck Rib Measure & Cut0.25240200MNL-1
5Neck Rib Tack With Body0.26230200SNL11
6Neck Rib Joining0.302001904OL11
7Neck Top Stitch0.25240200FL11
8Main Label Attach0.33181190SNL22
9Sleeve Hem0.30200190FL11
10Sleeve & Body Match0.22273210MNL-1
11Sleeve Joining0.421421904OL22
12Arm Hole Top Stitch0.30200190FL11
13Side Seam0.571051904OL22
14Sleeve Close & Open Tack0.37162190SNL22
15Body Hem0.46130190FL22
16Final Thread Cut0.34176190MNL-1
Total Cycle Time5.081822

Table 1: Machine Layout plan of a Basic T-shirt.             

Generally, a machine layout plan is made by following an operation breakdown. Because from an operation breakdown, we get the proper idea about which part will join one after another and select the machine for that operation. We have also known how many machine and workers need for each operation from the machine layout plan.

Operation Bulletin of a Basic T-shirt: Operation bulletin of a Basic T-shirt has divided into 3 parts;
  1. Sewing and production data.
  2. Machine requisition data.
  3. Manpower requisition data. 
1. Sewing and production data: In sewing data included SMV of Sewing and manual operation, production target per hour at 80%, 90%, and 100% efficiency.

Operation Bulletin of Sewing Data
Sewing Operation SMV4.09 min.
Manual Operation SMV0.99 min.
Production Target at 80% efficiency1514 pcs
Production Target at 90% efficiency1703 pcs
Production Target at 100% efficiency1892 pcs

Table 2: Operation Bulletin of Sewing Data.                  

2. Machine requisition data: In machine data included types of machine and no. of machine required for this garment production.

Operation Bulletin of Machine Data
Name Of MachineRequisition
4OL – 4 thread overlock7 m/c
SNL – Single needle lock stitch6 m/c
FL – Flat lock m/c5 m/c
Total18 m/c

Table 3: Operation Bulletin of Machine Data.                     

3. Manpower requisition data: In manpower data included no. of the operator and helper required for this garment production.

Operation Bulletin of Manpower Data
Operator18
Helper4
Total22

Table 4: Operation Bulletin of Manpower Data.                    

Operation bulletin makes our work easy to set up a production line. We easily manage machine and operator requirement for any sewing line by this. But it is necessary to do operation breakdown of Basic T-shirt to prepare a machine layout as also operation bulletin.

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