Overview
The 15kW automatic drawbar is a critical component in modern CNC machining centers, designed to handle high-power applications with reliable tool retention. This electromechanical device replaces manual drawbars, enabling faster tool changes through automated clamping mechanisms. Primarily used in vertical milling machines and machining centers, it features a robust construction to withstand the 15kW power rating, making it suitable for heavy-duty cutting operations. The automatic function reduces setup time and improves production efficiency in industrial manufacturing environments.
Structure and Working Principle
The drawbar consists of a central shaft, precision springs, and an actuator system (often pneumatic or hydraulic). When energized, the actuator compresses the springs to release the tool holder, while de-energizing allows spring tension to clamp the tool. The 15kW rating indicates its capacity to maintain secure clamping under high cutting forces. Advanced models incorporate sensors to verify proper tool seating and clamping force. The automatic operation integrates with the machine's CNC system for coordinated tool changes during programmed operations.
Key Features
High torque capacity (15kW) ensures stable tool holding during aggressive machining operations. The automated function enables tool changes in seconds, significantly reducing non-cutting time in production cycles. Durable alloy steel construction provides long service life, while precision-ground components maintain consistent clamping force. Many models feature wear compensation mechanisms to preserve performance over extended use. Some premium versions include condition monitoring for predictive maintenance.
Application Areas
Widely used in CNC vertical machining centers for metalworking applications, particularly in aerospace, automotive, and mold manufacturing industries. The 15kW rating makes it suitable for large-scale machines handling tough materials like titanium or hardened steels. Also found in some high-end router systems for composite material processing. The automatic operation is essential for unmanned manufacturing cells and lights-out operations where manual intervention isn't possible.
Maintenance and Precautions
Regular lubrication of moving parts is crucial - use manufacturer-recommended greases at specified intervals. Inspect spring tension annually and replace if compression force drops below 90% of specification. Avoid exposure to excessive metal chips or coolant ingress which can accelerate wear. Always verify proper air pressure/hydraulic pressure (if applicable) before operation. During installation, ensure proper alignment to prevent uneven loading on the drawbar mechanism.
B2B Procurement Guide
When sourcing automatic drawbars, confirm compatibility with your spindle's taper type (BT, CAT, HSK) and power requirements. Leading manufacturers include Bilz, Nikken, and Sandvik, with quality alternatives available from Korean and Taiwanese suppliers. For high-volume purchases (50+ units), negotiate maintenance packages including spare springs and seals. Lead times typically range 4-8 weeks for custom configurations. Consider total cost of ownership - premium models often offer better longevity despite higher initial cost.
Related Manufacturers
- 主营：五轴加工中心、龙门加工中心、卧式加工中心、数控立车、车铣复合、数控车床、卧式车床、数控斜身车、数控镗铣床、数控镗铣中心、走心机
- 主营：传感器、电磁阀、保护器、履带底盘、地磅、电动脚手架、装载机电子秤、机械抓手、砌筑升降平台、光伏板升降机、内撑吊具、混凝土振动棒、打标机、研磨机、裁切机、平移门电机、超市防盗门、磨片磨头、滑移机、消防机器人、农业打药机、消防器材
- 主营：试验机、压力测试机、数显机械弹簧、缺口拉刀、万能材料测试机
- 主营：大型链轮齿轮、齿圈、齿条、扇形齿轮、机械传动配件、伞齿轮、直齿轮、斜齿轮、双排链轮、螺旋伞齿、非标链轮、输送机齿轮、滚子链轮、搅拌机齿圈、同步轮、螺旋伞齿轮、大模数齿轮、齿轮定制、齿轮、浇筑齿轮、非标齿轮、焊机链轮、钢硬面齿轮、碳钢链轮、大齿轮
- 主营：数控车床、摇臂钻床、普车、锯床、升降台铣床、立式铣床、钻铣床、数控铣床、加工中心、磨床、牛头刨床、数控立车、龙门铣、龙门加工中心
- 主营：齿轮刀具、滚刀、插齿刀、拉刀、非标刀具
- 主营：abb温度、mpro27-gl、温度计、机床拉刀爪、气动阀、密封泵、清洗阀、电磁阀、施耐德、abb压力、继电器、控制器、测量表、传感器、电容器、排气阀、控制阀、德国s+b、流量计、电能表、metsepm5110、metsepm5100、th102ttr200、metsepm8240、metsedm2350、ge多功能
- 主营：去毛刺倒角刀、金刚石滚压刀、通孔滚压刀、反拉刀去毛刺、浮动铰刀柄、浮动去毛刺刀柄、中心钻、套料钻、浮动主轴、反刮刀、旋转冲、沉孔刀、TOOLFLO螺纹刀、石油管螺纹、潜孔钻、反镗刀、油路刀柄、螺纹滚压刀、滚压工具、BF半球去毛刺刀、盲孔滚压刀、弹出式反向沉孔刀
- 主营：甲醛释放量气候箱、水泥水化热测定仪、沥青蜡含量、高低温水浴、水泥生料易烧性压实机、人造板划痕试验仪、水泥原料易磨性球磨机、冻土冻结温度、混凝土粉样分层研磨机、家具平整度试验仪、土工布垂直渗透仪、小室法甲醛试验箱、人造板落球冲击试验仪、砂基透水砖透水速率、水泥胶砂抗冻性试验箱
- 主营：高速主轴、水平仪、分板机主轴、去毛刺浮动主轴、CNC增速器
- 主营：滚珠轴、润滑泵、控车床、加工中心拉刀杆、两端轴、液压泵、丝杆轴、变频器、主轴承、法兰轴、驱动器、角接触轴、车床主轴、提升系统、丝杆座轴、直流电机、直线电机、旋转电机、复合机床、机床主轴、液压系统、防爆电机、主轴轴承、电动刀架、伺服电机、丝杆用轴承
- 主营：成型机、地槽机、扣板机、便携式手拉刀、楼承板、彩瓦机、分条机、包边机、开平机、压花机、彩钢板、车厢板、校平机、折弯机、除尘板、压瓦机、剪板机、c型钢机、除尘厢板、不锈钢板、冷弯设备、彩钢设备、彩钢瓦机、板材平整、钢板整平、电动剪切
- 主营：c-z互换、檩条机、板机器、钢带机、横挂板、车厢板、整平机、屋顶瓦、剪板机、成型机、收卷机、仿树脂、开卷机、卷闸门、彩瓦机、一机三、彩钢瓦、镀锌板、平分条、琉璃瓦、50-75-100、铝合金、压瓦机、净化器、分条机
- 主营：洞洞板、内齿加、拉床加工、拉刀加工、五金配件、建筑装饰、零件定制、五金加工、机械五金、异型孔加工、表面喷涂加工、非标零件加工、耐腐蚀装饰建材、承重高耐用金属
- 主营：机械设备、仪器设备、五金工具、工业品、汽油发电机、手风琴、手机维修压屏机、深井泵、架子鼓、风力发电机、真空干燥箱、气体灭火控制器、高压灭菌锅、电动抽油泵、车载吊机、电动叉车、直流电源、和田玉、山水画、电子琴、小提琴、离心风
- 主营：自动松拉刀、电主轴、高速电主轴、超声波电主轴