This Junjin JD800ENC is a used vertical drill — also commonly referred to as a drill rig or rock drill — built for downhole drilling applications including mining, quarrying, water well drilling, and construction ground investigation. Junjin is a South Korean manufacturer known for producing heavy drilling equipment and concrete pumping machinery, serving sectors that demand robust, high-cycle mechanical performance.
This particular machine was built in December 2018 and entered service in August 2019, giving it a well-documented production and operational history. It is powered by a Cummins QSB6.7 Tier III diesel engine (serial number ), a widely respected powerplant in the construction and mining equipment sectors. Importantly, this is a Tier III configuration, meaning it operates without DEF fluid and without a diesel particulate filter regeneration system — a practical advantage in remote or harsh working environments where emissions aftertreatment servicing can be a logistical burden.
At the time of listing, the machine has accumulated 3,603 total engine hours and 1,161 percussion hours since new. The YH80A hydraulic drifter was recently rebuilt at 3,283 engine hours and 1,086 percussion hours, and has logged only 75 hours since that rebuild — meaning the drifter assembly is effectively in near-new condition. A Cummins extended warranty was in effect until August 2024 or 10,000 hours, whichever came first.
The machine is well-equipped for productive independent operation. It features an extendable boom, a rod changer for efficient drill string management, and a rear winch along with a rear leg outrigger for stability and positioning on site. Dust management is handled by an onboard dry dust collector, with water injection also fitted as an additional dust suppression and bit-cooling option.
This description was generated automatically from the listing details and may not reflect every specification. Please confirm with the seller before purchase.