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. 

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.

You may like: Operation Breakdown of a Basic T-shirt with SMV and Production Target.

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 Operation	Cycle Time	Calculated Production	Target/Hr.	M/C Type	M/C Required	Worker Required
1	Care Label Attach With Back Part	0.20	300	190	SNL	1	1
2	Front & Back Part Match	0.18	333	200	MNL	-	1
3	Shoulder Joining	0.33	181	190	4OL	2	2
4	Neck Rib Measure & Cut	0.25	240	200	MNL	-	1
5	Neck Rib Tack With Body	0.26	230	200	SNL	1	1
6	Neck Rib Joining	0.30	200	190	4OL	1	1
7	Neck Top Stitch	0.25	240	200	FL	1	1
8	Main Label Attach	0.33	181	190	SNL	2	2
9	Sleeve Hem	0.30	200	190	FL	1	1
10	Sleeve & Body Match	0.22	273	210	MNL	-	1
11	Sleeve Joining	0.42	142	190	4OL	2	2
12	Arm Hole Top Stitch	0.30	200	190	FL	1	1
13	Side Seam	0.57	105	190	4OL	2	2
14	Sleeve Close & Open Tack	0.37	162	190	SNL	2	2
15	Body Hem	0.46	130	190	FL	2	2
16	Final Thread Cut	0.34	176	190	MNL	-	1
	Total Cycle Time	5.08				18	22

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 SMV	4.09 min.
Manual Operation SMV	0.99 min.
Production Target at 80% efficiency	1514 pcs
Production Target at 90% efficiency	1703 pcs
Production Target at 100% efficiency	1892 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 Machine	Requisition
4OL – 4 thread overlock	7 m/c
SNL – Single needle lock stitch	6 m/c
FL – Flat lock m/c	5 m/c
Total	18 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
Operator	18
Helper	4
Total	22

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.