Airless log tsheb yog cov log tsheb uas ua tiav qhov kev poob siab thiab cushioning yam tsis muaj kev cia siab rau huab cua. Cov log tsheb pneumatic siv cov roj hmab los kaw cov cua. Thaum huab cua compressed, cov huab cua molecules sib tsoo ntau dua nrog cov phab ntsa ntim, ua rau huab cua siab nce thiab tsim macroscopic elasticity. Qhov kev ua tau zoo tshaj cushioning thiab qis dov tsis kam ntawm pneumatic log tsheb nyob twj ywm unmatched los ntawm lwm hom log tsheb rau hnub tim.
Airless log tsheb, ntawm qhov tod tes, tsis xav tau kev nce nqi. Lawv ua tiav kev txhawb nqa thiab cushioning nkaus xwb los ntawm lub log tsheb tus kheej cov ntaub ntawv thiab cov qauv. Cov log tsheb uas muaj roj hmab tau tsim rau ntau tshaj ib puas xyoo. Lawv cov yam ntxwv tseem ceeb yog qhov hnyav, tsis zoo elasticity, siab dov tsis kam, thiab siab load peev. Lawv tsim nyog rau cov tsheb uas muaj qeeb ceev thiab hnyav load yuav tsum. Qhib- cov qauv log tsheb yog tsim los ntawm cov khoom siv polyurethane thiab siv cov qauv qhib thiab cov tubular interlaced peb- qhov nqus ntawm qhov nqus. Lawv qhov zoo muaj xws li cov tsos zoo nkauj thiab lub teeb yuag; qhov tsis zoo muaj xws li qis- ua haujlwm ceev thiab tsis zoo siab - qhov kub thiab txias tsis kam.