Kitu cha kufunga cha mafuta kinachotumika kwa: Mshale wa kuchimba, mkono, kikapu, kivuruga, Uchaguzi tofauti wa kitu cha kufunga kuu. Kitu cha kufunga kuu kilichotokana na Japani au Taiwan, vitu vingine vya kufunga vilitokana na China.
DKIS, URS, HBS kwa kufunga silinda ya kuchimba
XRS, HBS, URS, DIAPHRAGM, DWS kwa kifungo cha kuvuruga kwa mafuta
URS inaendelea chini ya shinikizo la chini au shinikizo la chini. Kazi yake kuu ni kuzuia film ya mafuta kutoka kwenye kitu cha kufunga kuu, kufikia hali ya kusimama kwa kushitiliwa. Ina sifa zifuatazo:
1. Uwezo wa kufunga chini ya shinikizo la chini
2. Upungufu wa msuguano wakati wa shinikizo la chini
3. Systamu ya kubeba shinikizo la juu kwa muda mfupi, yaani, kufanya kazi kwa usahihi katika shinikizo la kinyume.
4. Uwezo mzuri wa kurejea nyuma wakati wa kufanya kazi pamoja na kitu cha kufunga cha maji.
| Caterpillar | |||
|---|---|---|---|
| CAT307 | E180 | CAT315C | CAT345C |
| CAT307B | E200B | CAT315D | CAT345D ya kwanza |
| CAT308B | E240 | CAT318D | CAT345D ya pili |
| CAT311 | E240B | CAT320, V1, V2, V3 | CAT349D ya kwanza |
| CAT311B | E300B | CAT320B, C, D | CAT349D ya pili |
| CAT312 | CAT301.5 | CAT320D ya kawaida | CAT349E |
| CAT312B | CAT302.5 | Cat320d | CAT350 |
| Cat320 | CAT303 | CAT320D2 ya kawaida | CAT365C |
| CAT320B | CAT303CR | CAT320D2 | CAT374D |
| Cat320c | CAT304 | CAT322B | CAT385B |
| Cat320d | CAT304C | CAT323D | CAT385C |
| CAT325 | CAT304CR | CAT324D | CAT390D |
| CAT325B | CAT305E | CAT324DL | CAT140G |
| CAT325C | CAT305.5 | CAT325D | E70B |
| CAT330 | CAT305.5E | CAT329D | E100 |
| CAT330B | CAT306 | CAT330.B | E100B |
| CAT330C | CAT306E | CAT330C | E140 |
| CAT330D | CAT307B,C | CAT330C,E330CL-C9 | E300-H |
| CAT345B | CAT307D | CAT330D | E300E |
| CAT350 | CAT307D mpya | CAT330D2 | CAT311D2 |
| CAT400 | CAT307E | CAT336D | CAT312B,C |
| CAT450 | CAT307E2 | CAT336D2 | CAT312D |
| E110B | CAT308 | CAT336E | CAT312D2 |
| E120 | CAT308B,C | CAT340D | CAT312D2GC |
| E120B | CAT311B,C | CAT345B | CAT313D |
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