Wanpela 'quick-freezing machine em i wanpela indastrial masin we i save daunim hariap tempereja bilong kaikai i go aninit long frising, na mekim kaikai i go insait long mak bilong ais kristal fomesen zon insait long sotpela taim, na dispela i save lukautim gutpela kaikai. Wok bilong en i stap long 'heat conduction' na 'convection heat transfer'. Pastaim, ol i putim kaikai long wanpela 'conveyor belt' na i go insait long 'low-temperature envairomen bilong 'quick-freezing machine. Insait long masin, wanpela 'refrigeration system' (planti taim ol i save yusim 'ammonia' o 'Freon' olsem wanpela 'refrigerant') i save kamapim kol win. Dispela kol win i save raun long rot bilong wanpela fen, na senisim hat wantaim kaikai na rausim hat hariap.
Tempereja bilong wanpela masin bilong mekim ais hariap i save stap namel long -30 digri na -120 digri, bihainim kain kaikai na ol samting bilong mekim ais hariap. Taim bilong ais hariap em i save stap 10-25 minit, na dispela i mekim na 'core temperature' bilong kaikai i go daun hariap aninit long -18 digri, na dispela i pasim wok bilong ol liklik binatang na i mekim kaikai i stap longpela taim moa. Ol bikpela samting bilong wanpela masin bilong mekim ais hariap em wanpela 'refrigeration compressor', 'evaporator', 'condenser', 'fan', na 'control system'. Evaporeta i save kisim hat long kaikai, frijiresen kompresor i save presim low-temperature, low-pressure refrigerant ges i go long hai-temperature, hai-presa ges, na kondensa i save mekim hai-temperature, hai-presa ges i kol i go long hai-presa, na pinisim wok bilong ais.
