1. Round Knife Cutting Machine:This machine is called round knife cutting machine because its cutter is round but slightly octagonal in shape. This machine is small in size, flexible & used for small production. It is also a popular cutting machine.      

Fig: Round Knife Cutting Machine

Features of Round Knife Cutting Machine: 1. It contains a round but slightly octagonal type knife with sharp edge. 2. The other main parts of this machine are base plate, electric motor, handle & knife guard.

3. Knife diameter varies from 6-20 cm.

4. Manual grinder is used.

5. Motor r.p.m. is 800-1600.It depends on machine.

6. A handle for the cutter to direct the knife.

7. Easy to handle & movement due to low weight.

8. Knife is lubricating manually.

9. Three types of knife edge can be used for cutting different objects. Such as, waved edge, toothed edge & circular edge.

10. A round knife rotating so that the leading edge cuts downwards into the fabric.

11. Flexible movement helps to cut non linear shape.

12. Base plate gives support for fabric.

13. Maximum 40% of the knife diameter can be used for fabric lay.

Advantage of Round Knife Cutting Machine: 1. Suitable for cutting single ply as well as multilayer (say 20-30layers). 2. Easy to handle & operate.

3. Suitable for small scale cutting.

4. Suitable for gentle curve line cutting.

5. To cut the larger part of the garments.

6. With a same r.p.m. its efficiency is 10 times greater than the straight knife.

Disadvantage of Round Knife Cutting Machine: 1. Very low r.p.m. & knife height. 2. Manual grinder is used.

3. Low productivity since few number of lay can be cut.

4. Difficult to cut small components & high curve line.

5. Not suitable for large production.

6. Lubrication is manually done.

Uses/Application of Round Knife Cutting Machine: It’s useful for gentle curve line cutting, big parts cutting, cutting out fabric block from lay & small scale cutting. It’s normally use for small production. 

2. Round Cutting Knife Machine:

Round cutting knife machine is the most useful cutter knife instrument in apparel industry. Round knife is mainly used for small production. Round knife cutting machine is called round knife cutting machine because its cutter is round but slightly octagonal in shape.

Function of Round Cutter Knife:

Round cutter knife is widely used to separate the big parts and separate the blocks of fabric from relatively small height fabric lay.

Types of Knives:

Types of knives is listed here-

Round knife Bowie knife

Cutter knife /cutting knife

Throwing knife

Sharpening a knife

Utility knife

Automatic knife

Knife Parts:

Knife parts are specified here shortly-

Knife Parts

Electric motor. Plug.

Control handle.

Handle

Power switch.

Sharpener

Knife

Knife guard

Throat plate

Base plate

Rollers

Power Switch

Power Supply

Locking Disk

Specifications of a Automatic Knife:

Specifications Name Specifications ValueProduct Category CuttingMachine Category Knife Cutting MachineProduct Name Round automatic knifeProduct Model According to ManufacturerProduct Class NewOrigin Made in ChinaBrand/ Manufacturer cutlery cornerAgent in Bangladesh No/YesPower 1 Phase 100,   110/120V,   220V/240VTemperature NormalCertification SGS/OthersProduction Capacity 32mm (1.25”)Speed Single StandardBlade size 4 Sided Blade 110mm (4 1/4”)Standard Blade High Speed SteelBase Plate Thin Bases & 4 rollersSafety With Finger Guard, Balanced Handle, CEWeight 3.5kgs/ 7.7 lbs.Description  Should be eror free.

Features of Round Knifes:

Round knife is more costly than Straight Knife Cutting Machine Round knife machine can be easily movement due to light weight.

Round knife machine have manual grinder is used to sharp the blade.

Blade automatic knife is octagonal type & has a very sharp edge.

Fabric lay height can be cut using up to 40 percent of the blade diameter of round knife.

cutting knife

Advantages Round Cutting Knife Machine:

Round knife is specially used for cutting suit of fashion garment, Throwing knife is easy to operate,

Throwing knife is best suitable for gentle curve cutting.

Disadvantages Round Cutting Knife Machine:

Throwing knife requires very skilled operator to cut the fabric, This machine is not suitable for bulk production,

Very low knife height.

Conclusion:

Sharpening a knife cutting machine is popular in the garment industries. Best used for light to medium weight fabrics; woven or loosely knit fabric. But it is normally used for small production.