Isikhombisi sokushesha esetshenziswa kweShandong Tonda, esihleleni polyurethane, iyethula umsebenzi omphathelene ngokubenza ukuseta isikhombiso sokushesha (50–200 Hz) ngezinye izindlela zokuphakamisela amanye amagama okuhlawuleneyo. Ukuphatha kwakuxhasa lokhu kuyayaziwa ukusetshentela ukusekwa imigomo eliphambili, phakathi kweemfuyo ezincane kunye neemfuyo eziphambili. Isikhombiso sesihleleni polyurethane sisetshenziswa ngeememe yokugcina, njengalawulo lamanje neenhlangano engaphansi, ukuze ikhethe leliqinisekiso ngokupheleleyo ngazo amanye amagama akukho nokuthi amagama ahlawuliweyo okanye amacabangeli. Umsebenzi wokuseta isikhombiso sokushesha usetshenziswa nge-motor yephesikensi, uvumela amanani angaphambili kusetyenziswa kwezinto ezidingekayo. Bonisa nomuntu uzikhumbule kungaphi isikhombiso sokushesha sikufuneka ukusetshentela iindlela zakho zokusekwa kweemigomo eminingi.