Bawul ɗin guguwa bawul ne mai kama da wanda ba ya dawowa wanda ake amfani da shi don fitar da najasa a cikin ruwa. An haɗa shi da bututun ƙasa a gefe ɗaya, ɗayan kuma yana gefen jiragen ruwa don najasa ta wuce ruwa. Don haka ana iya gyara shi ne kawai a lokacin da ake yin busassun jiragen ruwa.
A cikin murfin bawul akwai wanda aka haɗa shi da nauyin counterweight, da kuma toshe kullewa. Toshe kulle shine yanki na bawul ɗin da ke ƙarƙashin ƙafafun hannu ko mai kunna wuta ke sarrafawa kuma ke aiki da shi. Manufar toshe kullewa ita ce riƙe murfin a wurin wanda a ƙarshe ke hana kwararar ruwa.
Da zarar kwararar ta fara, dole ne mai aiki ya zaɓi ko zai buɗe toshewar kulle, ko kuma ya ajiye ta a rufe. Idan toshewar kulle a rufe take, ruwan zai kasance a waje da bawul ɗin. Idan mai aiki ya buɗe toshewar kulle, ruwa zai iya gudana cikin sauƙi ta cikin murfin. Matsin ruwan zai saki murfin, wanda zai ba shi damar tafiya ta cikin hanyar fita a hanya ɗaya. Lokacin da kwararar ta tsaya, murfin zai koma matsayinsa na rufewa ta atomatik.
Ko da kuwa an sanya toshen kulle a wurin ko a'a, idan kwarara ta fito ta hanyar fita, kwararar baya ba za ta iya shiga bawul ɗin ba saboda nauyin da aka ɗauka. Wannan fasalin yayi kama da na bawul ɗin duba inda ake hana kwararar baya don kada ya gurɓata tsarin. Lokacin da aka sauke hannun, toshen kulle zai sake ɗaure murfin a wurin da yake kusa. Faɗin da aka ɗaure yana ware bututun don gyarawa idan ya cancanta
| Sashe na lamba | Kayan Aiki | ||||||
| 1 - Jiki | Simintin Karfe | ||||||
| 2 - Bonnet | Simintin Karfe | ||||||
| 3 - Tushe | Tagulla | ||||||
| 4 - Toshewa | Tagulla | ||||||
| 5 - Goro | Karfe, | ||||||

Bawul ɗin guguwa bawul ne mai kama da fap wanda ba ya dawowa wanda ake amfani da shi don fitar da najasa a cikin ruwa, yana da alaƙa da bututun ruwa a gefe ɗaya, ɗayan kuma yana gefen jiragen ruwa don najasa ta wuce ruwa. Don haka ana iya gyara shi ne kawai a lokacin da ake yin busassun jiragen ruwa.
A cikin murfin bawul ɗin akwai wanda aka haɗa shi da nauyin counterweight, da kuma toshe kullewa. Toshe na kulle shine ɓangaren bawul ɗin da ke sarrafawa kuma ke aiki da ƙafafun hannu na waje ko mai kunna wuta. Manufar toshe na kullewa ita ce a riƙe murfin a wurin wanda a ƙarshe ke hana kwararar ruwa.
Da zarar an fara aiki, mai aiki dole ne ya zaɓi ko zai buɗe toshen kulle, ko kuma ya rufe shi. Idan toshen kulle ya rufe, toshewar zai kasance a waje da bawul ɗin, idan mai aiki ya buɗe toshen kulle, toshewar zai iya shiga ta cikin murfin. Matsin lambar zai saki murfin, yana ba shi damar tafiya ta cikin hanyar fita a hanya ɗaya. Lokacin da kwararar ta tsaya, toshewar za ta koma matsayinta na rufe ta atomatik.
Ko da kuwa an sanya toshen kulle a wurin ko a'a, idan fow ya zo ta hanyar fita, fow na baya ba zai iya shiga bawul ɗin ba saboda nauyin da aka mayar da shi. Wannan fasalin yayi kama da na bawul ɗin dubawa inda ake hana kwararar baya don kada ya gurɓata tsarin. Lokacin da aka sauke hannun, toshen kulle zai sake ɗaure murfin a wurin da yake rufewa. Faɗin da aka ɗaure yana ware bututun don gyara idan ya cancanta.
| DN | n1×Φd1 | Hcd1 | ΦD1 | n2×Φd2 | Hcd2 | ΦD2 | ΦD | L1 | H1 | H2 | ΦR | Kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 | 4×18 | 125 | 165 | 8×18 | 160 | 200 | 70 | 180 | 90 | 260 | 140 | 12 |
| 65 | 4×18 | 145 | 185 | 8×18 | 180 | 220 | 85 | 200 | 100 | 270 | 140 | 14 |
| 80 | 8×18 | 160 | 200 | 8×18 | 210 | 250 | 100 | 215 | 108 | 290 | 140 | 20 |
| 100 | 8×18 | 180 | 220 | 8×22 | 240 | 285 | 130 | 250 | 130 | 305 | 140 | 25 |
| 125 | 8×18 | 210 | 250 | 8×22 | 270 | 315 | 158 | 290 | 152 | 330 | 160 | 36 |
| 150 | 8×22 | 240 | 285 | 8×22 | 295 | 340 | 190 | 330 | 176 | 260 | 160 | 43 |
| 200 | 8×22 | 295 | 340 | 12×22 | 350 | 395 | 240 | 425 | 180 | 350 | 160 | 72 |