Lampiran 1: OPC Proses Produksi Rubber Parts pada Mesin Hidrolik Manual

(1)

Manual

O - 1

O - 2

O - 3 I - 1

MIXING

ROLLING

FORMING INSPEKSI BAHAN BAKU

O - 4 PRESSING

SORTIR

I - 1 O - 6 I - 2

FINISHING &

INSPEKSI

O - 7

S - 3

KEMAS

GUDANG JADI BAHAN ELASTOMER

DAN BAHAN KIMIA

S -2

I - 4

GUDANG TRANSIT

INSPEKSI AKHIR O - 5

S - 1

GUDANG W IP

I - 3 INSPEKSI

(2)

Lampiran 2: OPC Proses Produksi Rubber Parts pada Mesin Hidrolik Ohtake

O - 1

O - 2

O - 3 I - 1

MIXING

ROLLING

FORMING INSPEKSI BAHAN BAKU

O - 4 PRESSING

SORTIR

I - 1 O - 6 I - 2

FINISHING &

INSPEKSI

O - 8

S - 3

KEMAS

GUDANG JADI BAHAN ELASTOMER

DAN BAHAN KIMIA

S -2

I - 5

GUDANG TRANSIT

INSPEKSI AKHIR O - 5

S - 1

GUDANG W IP O - 7

I - 4

POSTCURE

INSPEKSI

I - 3 INSPEKSI

(3)

z 0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 .0 .5000 .5040 .5080 .5120 .5160 .5199 .5239 .5279 .5319 .5359 .1 .5398 .5438 .5478 .5517 .5557 .5596 .5636 .5675 .5714 .5753 .2 .5793 .5832 .5871 .5910 .5948 .5987 .6026 .6064 .6103 .6141 .3 .6179 .6217 .6255 .6293 .6331 .6368 .6406 .6443 .6480 .6517 .4 .6554 .6591 .6628 .6664 .6700 .6736 .6772 .6808 .6844 .6879 .5 .6915 .6950 .6985 .7019 .7054 .7088 .7123 .7157 .7190 .7224 .6 .7257 .7291 .7324 .7357 .7389 .7422 .7454 .7486 .7517 .7549 .7 .7580 .7611 .7642 .7673 .7703 .7734 .7764 .7794 .7823 .7852 .8 .7881 .7910 .7939 .7967 .7995 .8023 .8051 .8078 .8106 .8133 .9 .8159 .8186 .8212 .8238 .8264 .8289 .8315 .8340 .8365 .8389 .10 .8413 .8438 .8461 .8485 .8508 .8531 .8554 .8577 .8599 .8621 .11 .8643 .8665 .8686 .8708 .8729 .8749 .8770 .8790 .8810 .8830 .12 .8849 .8869 .8888 .8907 .8925 .8944 .8962 .8980 .8997 .9015 .13 .9032 .9049 .9066 .9082 .9099 .9115 .9131 .9147 .9162 .9177 .14 .9192 .9207 .9222 .9236 .9251 .9265 .9279 .9292 .9306 .9319 .15 .9332 .9345 .9357 .9370 .9382 .9394 .9406 .9418 .9429 .9441 .16 .9452 .9463 .9474 .9484 .9495 .9505 .9515 .9525 .9535 .9545 .17 .9554 .9564 .9573 .9582 .9591 .9599 .9608 .9616 .9625 .9633 .18 .9641 .9649 .9656 .9664 .9671 .9678 .9686 .9693 .9699 .9706 .19 .9713 .9719 .9726 .9732 .9738 .9744 .9750 .9756 .9761 .9767 .20 .9772 .9778 .9783 .9788 .9793 .9798 .9803 .9808 .9812 .9817 .21 .9821 .9826 .9830 .9834 .9838 .9842 .9846 .9850 .9854 .9857 .22 .9861 .9864 .9868 .9871 .9875 .9878 .9881 .9884 .9887 .9890 .23 .9893 .9896 .9898 .9901 .9904 .9906 .9909 .9911 .9913 .9916 .24 .9918 .9920 .9922 .9925 .9927 .9929 .9931 .9932 .9934 .9936 .25 .9938 .9940 .9941 .9943 .9945 .9946 .9948 .9949 .9951 .9952 .26 .9953 .9955 .9956 .9957 .9959 .9960 .9961 .9962 .9963 .9964 .27 .9965 .9966 .9967 .9968 .9969 .9970 .9971 .9972 .9973 .9974 .28 .9974 .9975 .9976 .9977 .9977 .9978 .9979 .9979 .9980 .9981 .29 .9981 .9982 .9982 .9983 .9984 .9984 .9985 .9985 .9986 .9986 .30 .9987 .9987 .9987 .9988 .9988 .9989 .9989 .9989 .9990 .9990 .31 .9990 .9991 .9991 .9991 .9992 .9992 .9992 .9992 .9993 .9993 .32 .9993 .9993 .9994 .9994 .9994 .9994 .9994 .9995 .9995 .9995 .33 .9995 .9995 .9995 .9996 .9996 .9996 .9996 .9996 .9996 .9997 .34 .9997 .9997 .9997 .9997 .9997 .9997 .9997 .9997 .9997 .9998 .35 .9998 .9998 .9998 .9998 .9998 .9998 .9998 .9998 .9998 .9998 Sumber: G. K. Bhattacharya, and R. A. Johnson, Statistical Concepts and Methods, (New York: John Wiley & Sons, Inc., 1977), p 598

(4)

Lampiran 4: Data Awal Lama Produksi pada Mesin Hidrolik Ohtake (dalam detik)

No Loading Bumping Pressing Unloading

1 32 30 140 79

2 39 30 140 53

3 46 30 140 56

4 45 30 140 48

5 40 30 140 110

6 43 30 140 98

7 49 30 140 78

8 35 30 140 71

9 52 30 140 74

10 50 30 140 68

11 50 30 140 86

12 53 30 140 104

13 44 30 140 62

14 47 30 140 95

15 51 30 140 65

16 46 30 140 87

17 62 30 140 107

18 55 30 140 127

19 57 30 140 92

20 48 30 140 63

21 52 30 140 89

22 50 30 140 47

23 54 30 140 67

24 57 30 140 65

25 48 30 140 69

26 50 30 140 63

27 39 30 140 95

28 37 30 140 78

29 49 30 140 105

30 55 30 140 85

(5)

(dalam detik)

No Loading Pressing Unloading

1 221 614 248

2 270 806 199

3 231 819 138

4 212 555 200

5 205 477 152

6 267 766 227

7 253 734 121

8 230 710 235

9 233 623 241

10 252 708 206

11 296 831 137

12 229 918 214

13 187 715 228

14 206 754 241

15 275 634 280

16 251 831 164

17 234 847 192

18 238 557 204

19 251 885 141

20 250 928 212

21 266 910 146

22 207 592 230

23 246 480 243

24 232 824 52

25 252 891 225

26 215 808 247

27 214 948 190

28 227 924 254

29 245 630 229

30 242 663 179

(6)

Lampiran 6: Data Awal Lama Produksi pada Mesin Hidrolik Manual no 3 (dalam detik)

No Loading Pressing Unloading

1 65 302 27

2 75 309 31

3 77 297 34

4 90 306 29

5 60 308 38

6 72 300 37

7 68 314 35

8 76 304 28

9 66 294 39

10 86 296 40

11 70 314 37

12 80 317 35

13 75 288 41

14 66 304 36

15 72 297 42

16 77 316 45

17 80 293 47

18 68 306 32

19 76 313 40

20 73 310 47

21 61 316 49

22 66 302 37

23 73 312 35

24 75 320 28

25 69 319 36

26 70 303 42

27 73 290 31

28 64 310 34

29 75 301 29

30 66 301 40

(7)

1

1. Perhitungan Waktu Baku Proses Loading di Mesin Hidrolik Manual no 1 a. Kenormalan Data

Approximate P-Value > 0.15 D+: 0.098 D-: 0.059 D : 0.098 Kolmogorov-Smirnov Normality Test N: 30

StDev: 24.0307 Average: 237.9

300 250

200 .999

.99 .95 .80 .50 .20 .05 .01 .001

Probability

loading mesi

Normal Probability Plot

H0 : Data berdistribusi normal H1 : Data tidak berdistribusi normal Tolak H0 jika P Value < 0.10

Dari grafik diatas dapat dilihat bahwa P Value > 0.15 maka gagal tolak H0 Sehingga data waktu dapat dikatakan berdistribusi normal

b. Keseragaman Data

30 20

10 0

300

250

200

150

Sample Number

Sample Mean

X-bar Chart for loading

Mean=237.9 UCL=307.3

LCL=168.6

Dapat dilihat pada grafik di atas bahwa tidak ada data yang keluar dari batas UCL dan LCL maka data waktu dapat dikatakan seragam.

(8)

Lampiran 7: Perhitungan Waktu Baku Proses di Mesin Hidrolik Manual no 1 (sambungan)

c. Kecukupan Data

( )

² ²

. 2

2 . / '











  −



 





=

∑

∑ ∑

i

i i

X

X X

Z N

N α

α

2

7137

50936769 1714639

. . 30 1 . . 0

645 . 1 '











  −



 





=

x N

N’ = 2.67

Karena N’< N yaitu sebesar 30 data maka data dikatakan cukup

d. Waktu Siklus _

WS = x

= 237.9 detik

e. Performance rating

Skill : Average D→ 0.00 Effort : Good C2 → + 0.02 Condition : Average D → 0.00 Consistency : Average D → 0.00

--- + + 0.02

f. Waktu Normal

Wn = WS x Performance rating Wn = 237.9 x 1.02

Wn = 242.658 detik

(9)

1 (sambungan)

g. Allowance

A . Tenaga yang dikeluarkan : ringan Æ 7.5 B . Sikap kerja : Berdiri diatas 2 kaki Æ 1 C . Gerakan kerja : Normal Æ 0 D . Kelelahan mata : Pandangan yang terputus-putus Æ 2.5 E . Keadaan temperatur tempat kerja Æ 5

5.) Tinggi ( 28^o – 38^o C )

F . Keadaan Atmosfer : Cukup Æ 0 G . Keadaan lingkungan yang baik Æ 0

1.) kebisingan rendah

H. Kelonggaran pribadi Æ 2.5

--- + 18.5 %

h. Waktu Baku

100 %

Wb = Wn x --- 100 % - %allowance

100 % Wb = 242.658 x ---

100 % - 18.5 % Wb = 297.7399 detik

(10)

2. Perhitungan Waktu Baku Proses Pressing di Mesin Hidrolik Manual no 1 a. Kenormalan Data

Average: 746.067 StDev: 138.306 N: 30

Kolmogorov-Smirnov Normality Test D+: 0.091 D-: 0.134 D : 0.134

Approximate P-Value > 0.15

460 560 660 760 860 960

.001 .01 .05 .20 .50 .80 .95 .99 .999

Probability

pressing mes

b. Keseragaman Data

30 20

10 0

1200 1100 1000 900 800 700 600 500 400 300

Sample Number

Sample Mean

X-bar Chart for pressing

Mean=746.1 UCL=1108

LCL=384.6

(11)

1 (sambungan)

c. Kecukupan Data

( )

² ²

. 2

2 . / '











  −



 





=

∑

∑ ∑

i

i i

X

X X

Z N

N α

α

2

22382

500953924 17253196

. . 30 1 . . 0

645 . 1 '











  −



 





=

x N

N’ = 8.99

d. Waktu Siklus _

WS = x

= 746.1 detik

--- + + 0.02

f. Waktu Normal

Wn = 761.022 detik

(12)

g. Allowance

5.) Tinggi ( 28^o – 38^o C )

--- + 18.5 %

h. Waktu Baku

100 %

100 % Wb = 761.022 x ---

100 % - 18.5 % Wb = 933.7693 detik

(13)

1 (sambungan)

3. Perhitungan Waktu Baku Proses Unloading di Mesin Hidrolik Manual no 1 a. Kenormalan Data

StDev: 49.5066 Average: 199.167

250 150

50 .999

.99 .95 .80 .50 .20 .05 .01 .001

Probability

unloading me

b. Keseragaman Data

30 20

10 0

400

300

200

100

0

Sample Number

Sample Mean

X-bar Chart for unloadin

Mean=199.2 UCL=364.5

LCL=33.81

(14)

c. Kecukupan Data

( )

² ²

. 2

2 . / '











  −



 





=

∑

∑ ∑

i

i i

X

X X

Z N

N α

α

2

5975

35700625 1261097

. . 30 1 . . 0

645 . 1 '











  −



 





=

x N

N’ = 16.16

d. Waktu Siklus _

WS = x

= 199.2 detik

--- + + 0.02

f. Waktu Normal

Wn = 203.184 detik

(15)

1 (sambungan)

g. Allowance

5.) Tinggi ( 28^o – 38^o C )

--- + 18.5 %

h. Waktu Baku

100 %

100 % Wb = 203.184 x ---

100 % - 18.5 % Wb = 249.3055 detik

(16)

Lampiran 8: Perhitungan Waktu Baku Proses di Mesin Hidrolik Manual no 3

1. Perhitungan Waktu Baku Proses Loading di Mesin Hidrolik Manual no 3 a. Kenormalan Data

StDev: 6.79621 Average: 72.1333

90 80

70 60

.999 .99 .95 .80 .50 .20 .05 .01 .001

Probability

loading mesi

b. Keseragaman Data

30 20

10 0

100

90

80

70

60

50

Sample Number

Sample Mean

X-bar Chart for loading

Mean=72.13 UCL=95.15

LCL=49.11

(17)

3 (sambungan)

c. Kecukupan Data

( )

² ²

. 2

2 . / '











  −



 





=

∑

∑ ∑

i

i i

X

X X

Z N

N α

α

2

2164

4682896 157436

. . 30 1 . . 0

645 . 1 '











  −



 





=

x N

N’ = 2.32

d. Waktu Siklus _

WS = x

= 72.13 detik

Skill : Excellent B2 → + 0.08 Effort : Good C1 → + 0.05 Condition : Average D → 0.00 Consistency : Good C → + 0.01

--- + + 0.14

f. Waktu Normal

Wn = 82.2282 detik

(18)

g. Allowance

5.) Tinggi ( 28^o – 38^o C )

--- + 18.5 %

h. Waktu Baku

100 %

100 % Wb = 82.2282 x ---

100 % - 18.5 % Wb = 100.8935 detik

(19)

3 (sambungan)

2. Perhitungan Waktu Baku Proses Pressing di Mesin Hidrolik Manual no 3 a. Kenormalan Data

StDev: 8.73573 Average: 305.535

320 310

300 290

.999 .99 .95 .80 .50 .20 .05 .01 .001

Probability

pressing mes

b. Keseragaman Data

30 20

10 0

340 330 320 310 300 290 280 270

Sample Number

Sample Mean

X-bar Chart for pressing

Mean=305.5 UCL=333.8

LCL=277.3

(20)

c. Kecukupan Data

( )

² ²

. 2

2 . / '











  −



 





=

∑

∑ ∑

i

i i

X

X X

Z N

N α

α

2

9162

83942244 2800298

. . 30 1 . . 0

645 . 1 '











  −



 





=

x N

N’ = 0.22

d. Waktu Siklus _

WS = x

= 305.5 detik

--- + + 0.14

f. Waktu Normal

Wn = 348.27detik

(21)

3 (sambungan)

g. Allowance

5.) Tinggi ( 28^o – 38^o C )

--- + 18.5 %

h. Waktu Baku

100 %

100 % Wb = 348.27x ---

100 % - 18.5 % Wb = 427.3252 detik

(22)

3. Perhitungan Waktu Baku Proses Unloading di Mesin Hidrolik Manual no 3 a. Kenormalan Data

StDev: 5.93732 Average: 36.7

50 40

30 .999

.99 .95 .80 .50 .20 .05 .01 .001

Probability

unloading me

H0 : Data berdistribusi normal H1 : Data tidak berdistribusi normal Tolak H0 jika P Value < 0,10

Dari grafik diatas dapat dilihat bahwa P Value > 0,15 maka gagal tolak H0 Sehingga data waktu dapat dikatakan berdistribusi normal

b. Keseragaman Data

30 20

10 0

50

40

30

20

Sample Number

Sample Mean

X-bar Chart for unloadin

Mean=36.7 UCL=52.02

LCL=21.38

(23)

3 (sambungan)

c. Kecukupan Data

( )

² ²

. 2

2 . / '











  −



 





=

∑

∑ ∑

i

i i

X

X X

Z N

N α

α

2

1101

1212201 41429

. . 30 1 . . 0

645 . 1 '











  −



 





=

x N

N’ = 6.85

d. Waktu Siklus _

WS = x

= 36.7 detik

--- + + 0.14

f. Waktu Normal

Wn = 41.838 detik

(24)

g. Allowance

5.) Tinggi ( 28^o – 38^o C )

--- + 18.5 %

h. Waktu Baku

100 %

100 % Wb = 41.838 x ---

100 % - 18.5 % Wb = 51.33497 detik