国机重工DT215旋挖钻的优点包括：1. 高效性能：具备强力旋转驱动系统和强力液压系统，钻机转速快，钻孔效率高，适用于各种复杂地质条件下的钻孔作业。2. 良好稳定性：采用稳定的底盘设计和强力附着力，可在各种复杂地形条件下稳定操作。此外，钻机具备稳定的履带底盘，提供更好的行进稳定性和抓地能力。3. 灵活性：钻机具备360度旋转的回转机构，可灵活调整钻孔角度和位置，最大程度满足不同作业需求。4. 操作方便：采用电脑控制系统，操作简单方便，钻机配备的人机界面也是易于操作和掌握。5. 噪音低：采用先进的隔音设计和降噪技术，减少了钻机作业时的噪音污染。6. 耐用性好：钻机采用高强度钢材和耐磨材料制作，结构坚固稳定，使用寿命长。7. 维护方便：钻机的维修保养较为简单，易于维护，降低了维修成本。8. 安全性高：钻机配备了安全保护装置，减少了操作人员的伤害风险。总体来说，国机重工DT215旋挖钻具备高效性能、良好稳定性、灵活性、操作方便、噪音低等优点，是一款具备较高性价比的旋挖钻机。

The advantages of SINOMACH DT215 rotary drilling rig include: 1. High efficiency performance: with strong rotary drive system and strong hydraulic system, the drilling rig has fast rotating speed and high drilling efficiency, which is suitable for drilling operations under various complex geological conditions. 2. Good stability: with stable chassis design and strong adhesion, the drilling rig can be operated stably in various complex terrain conditions. 3. In addition, the drilling rig is equipped with a stable crawler chassis, which provides better traveling stability and gripping ability.3. Flexibility: The drilling rig is equipped with a 360-degree rotating slewing mechanism, which can flexibly adjust the drilling angle and position, and maximally meets the needs of different operations.4. Convenient operation: It adopts a computerized control system, which is simple and convenient to operate, and the drilling rig is equipped with a human-machine interface that is easy to operate and master.5. Low noise: It adopts the advanced sound insulation design and noise reduction. Advanced sound insulation design and noise reduction technology reduces the noise pollution during the operation of the drilling rig.6. Good durability: the drilling rig is made of high-strength steel and wear-resistant materials, which has a sturdy and stable structure, and a long service life.7. Convenient maintenance: the maintenance of the drilling rig is relatively simple and easy to maintain, which reduces the cost of maintenance.8. High safety: the drilling rig is equipped with a safety protection device, which reduces the risk of injury to the operator. Overall, SINOMACH DT215 rotary drilling rig has the advantages of high efficiency performance, good stability, flexibility, easy operation, low noise and so on, which is a rotary drilling rig with high cost performance.