Isikhumba sesiShandong Tonda sokuqala esihluhleni kakhulu lwe polyurethane uhlola lokuvibela lusiziwe ukuphatha amacala ekuthathweni, eminingini, ukuhlolwa kwezinkululo nezinhlangano, ungenziwayo ukuphatha usuku lwe 1,000 amatonisi/wahhori weamatirha. Isikhwebhu se-polyurethane esihluhleni kakhulu (10–50 m²) nesimelelo sokuvibela okungakhotheliwe (isinyelesi 60–120 Hz, isithombe 5–10 mm) uzokubonisa uphawu lwamathetho ngokushesha ngokufanelekileyo nokuhlola ukuseparatisha. Inkonzo yokugcina yezincinci zesi-steel inceda umeshi wesikhiwo wesipolyurethane ukukhangelana nokuncedelo oluhlu (≥50 MPa) nokukhokhelwa kwesisekelo, uzokusetyenziswa ngendlela enjalo ngaphandle kokunyuka kwezimali ezindala. Ukuphindeleza komoya wokuvibela (5–20 iideegri) kunye nokuphinda kwevibeleliso kuzofundziswa ukuba kungenzelele amanani angcono, phakathi kwecoal kunye nokushesha kwezinto ezinikezelayo. Bonisa nethu ukubalekela izilungiso zesikhwebhu esihluhleni kakhulu lokusebenzela amagama akho abangakho ephaweni lokuhlola.