Txiab Trailer Jacks
Qhov zoo: Lub teeb yuag thiab txav tau yooj yim; compact thaum khaws cia; tus nqi qis; tag nrho - steel siv tiv thaiv xeb; yooj yim rau kev khiav lag luam (txawm tias cov neeg pib tshiab tuaj yeem tswj kev nqa siv lub ratchet wrench).
Qhov tsis zoo: Kev nqa yuav tsum tau siv zog rau lub cev ntau dua; Feem ntau qis load peev (feem ntau haum rau lub teeb trailer hauv qab 3 tons); nruab nrab stability ntawm cov av tsis sib xws.
Hydraulic Trailer Jacks
Qhov zoo: Siv cov qauv hydraulic rau qis- siv zog ua haujlwm; ceev lifting ceev; dav puag muaj zog stability; qee cov qauv txhawb nqa hnyav ntawm 5-12 tons, ua rau lawv haum rau cov tsheb thauj khoom thiab hnyav -cov haujlwm trailer.
Disadvantages: Bulky loj ua rau lawv tsis yooj yim rau nqa hauv lub tsheb; kev pheej hmoo ntawm cov kua dej tawm hauv lub sijhawm; lifting efficiency tuaj yeem poob rau hauv qhov kub thiab txias vim txo cov kua dej.
Ntsia Hlau Trailer Jacks
Qhov zoo: Nta cov neeg kho tshuab tus kheej - xauv kom muaj kev nyab xeeb thiab kev ntseeg siab; yooj yim txij nkawm nrog tsawg tsis ua hauj lwm; tuaj yeem tuav txoj haujlwm nqa mus tas li yam tsis muaj dab tsi; zoo tagnrho rau ntev - chaw nres tsheb thiab theem ntawm cov tsheb thauj khoom.
Disadvantages: High mechanical kis tau tus mob ua rau txo qis tag nrho efficiency; qeeb qeeb qeeb; siab - qauv tonnage hnyav, ua rau lawv nyuaj rau ib tus neeg txav mus los.