1.up left: single driver take up cam,Dia 20
2.up right:double driver take up cam, Dia21
3.down:pressure foot cam (with seat)

high speed machine parts

1. high speed machine needle bar seat and head

2. high speed machine double cam

3. high speed machine take up lever with gear

4. double cam

5. high speed hook box

6.motor instead of jump solenoid

7.high speed three eyes shaft  and take up leaver A/B

8.high speed machine use linear head system

9.high speed machine recipractor