Evaluasi Produksi Alat Mekanis pada Unit Crushing Plant di PT TOP Kabupaten Mempawah Kalimantan Barat

TOP is a mining company in granodiorite located in Mempawah Regency with a production target of 150 tons per day. Mining activities are carried out by blasting which are transported using a Dump Truck to be sent to the Crushing Plant unit to be processed according to size. The processing of granodiorite in the Crushing Plant unit consists of two stages, namely Primary crushing and Secondary crushing. The tools used are 1 unit of primary crushing (Jaw Crusher) and 1 unit of Secondary crushing (Cone Crusher). The use of crushing equipment is supported by equipment such as hoppers, feeders, screening and belt conveyors. This series of processing produces production in the form of stone ash, 1x1 mm, 1x2 mm, and 0.5 mm. The purpose of this activity is to evaluate the achievement of granodiorite production targets at PT. TOP and knowing the factors that hinder the performance of the crushing plant tool. The results of the evaluation of production on belt conveyors 11,12,13, and 14 are in accordance with the production target at PT. TOP, but the production target is not optimal. For this reason, the company can increase production targets without add a belt conveyor to the Crushing Plant unit. while the factors that hinder the performance of the crushing plant are the slow handling of the damaged crushing plant machine, the material size is too large.TOP merupakan perusahaan yang bergerak dibidang pertambangan batu granodiorit yang berlokasi di Kabupaten Mempawah dengan target produksi 150 ton/hari. Aktivitas penambangan yang dilakukan dengan cara peledakan yang kemudian diangkut menggunakan Dump Truck untuk dikirim ke unit Crushing plant agar diproses sesuai ukuran. Pengolahan granodiorit di unit Crushing plant terdiri dari dua tahap yaitu Primary crushing dan Secondary crushing. Alat yang digunakan yaitu 1 unit primary crushing (Jaw Crusher) dan 1 unit Secondary crushing (Cone Crusher). Penggunaan alat Crushing tersebut didukung oleh alat penunjang seperti Hopper, feeder, screening dan belt conveyor. Rangkaian pengolahan tersebut menghasilkan produksi berupa abu batu, 1x1 mm, 1x2 mm, dan 0,5 mm. Adapun tujuan dari kegiatan ini adalah mengevaluasi ketercapaian target produksi granodiorit di PT. TOP dan mengetahui faktor-faktor yang menghambat kinerja alat crushing plant..Hasil evaluasi produksi pada belt conveyor 11,12,13, dan 14 telah sesuai dengan target produksi di PT. TOP, namun target produksi tersebut belum optimal. Untuk itu perusahaan dapat meningkatkan target produksi tanpa perlu menambah alat belt conveyor pada unit Crushing plant. sedangkan faktor yang menghambat kinerja crushing plant adalah lambatnya penanganan terhadap mesin crushing plant yang rusak, ukuran material terlalu besar