Мaqolada turli texnologik operatsiyalarda kar’er ekskavatorlari eksplyatatsiyasi jarayoni sifatini va samaradorligini oshirish ychyn maqsadli yo’naltirilgan kar’er ekskavatorlarining ish ynymdorligini tadqiq qilish masalalari yoritilgan. Ob’ekt sistema sifatida “operator-ekskavator-ish joyi” deb qaralgan va kar’er ekskavatorlari ish ynymdorligiga ta’sir etyvchi konstryktiv, ta-biiy, klimatik, texnologik, tashkiliy va boshqa omillarning asosiy parametrlari aniqlangan.

Tayanch iboralar: Ekskavator, qazish, yuklash, ekskavatsiya, sikl,cho’mich, jarayon, ish joyi, operator, koeffitsientlar:maydalanish, to’lish, ishlatilish,to’xtash, yo’qotilish, boshqarish, qazish qiyinchiligi,tayyorgarlik, konsentratsiya.

The article highlights the issues of research performance of mining excavators for targeted improvement of the efficiency and quality of the operation process of mining excavators in various technological operations. The object is considered as a system “operator-excavator-slaughter” and the main parameters affecting the productivity of mining excavators are con-structive, natural, climatic, technological, organizational and other factors.

Key words: Excavator, dredging, loading. excavation, cycle, ladle, process, slaughter, operator, coefficients: loosening, filling, use, idle, loss, control, development complexity, readi-ness, concentration.