HCM系列(27.5MPa规格)
Series HCM （specification 27.5MPa）
■概要
主要为小型挖掘机使用所开发的高耐久中压油缸. 适合于使用压力为27.5MPa、使用温度为-20℃～100℃（寒冷地区规格为-40℃～90℃）的使用条件。
■特点
HCM系列产品具有以下特点：
● 小型、轻量、高强度……采用根据负载频率分析的强度、疲劳设计、适应性的油缸体和活塞杆的选材及加工技术、焊接技术，通过超声波探伤检查，作为高压规格，实现小型、轻量、高强度、高可靠性。
● 密封系统……选用日本NOK和宝色霞板的能够克服土木建筑业使用条件的密封圈，以及本公司独特的密封系统设计，防止土砂尘埃，减少油漏，获得的活塞杆油膜。
● 缸体……改变缸体和发兰的壁厚，按照合适强度、合适尺寸制造的本公司的缸体的内面，经过滚光加工，达到了良好的粗糙度及表面硬度，提高了耐磨性。
● 活塞杆……以高频淬火为基础，通过镀覆镍硬铬，提高了防锈、耐磨以及耐伤性能。另外，通过CNC数控滚光保证了表面网纹的均匀及高光洁度，从而保证了表面油膜的良好，提高产品寿命。
● 安全/缓冲功能……根据需要，能够比较容易地安装各种具有专用慢回程、计数平衡以及紧急关闭等功能的阀。而且内藏能够在行程终端吸收冲击的缓冲机构。
■Summary
This kind of durable intermediate-pressure cylinder is designed for small type excavator with max. pressure of 27.5MPa and operating temperature -20℃～100℃ (for cold area: -40℃～90℃)
■Features
HCM series products bear the following advantages:
● Small size, light weight and high intensity……Intensity, fatigue design, adaptive cylinder designed as per loading frequency analysis are applied, and piston rod selection, processing technology, welding technology are inspected through ultrasonic fault detection. As it is designed for high pressure operation, it is featured in small size, light weight, high intensity and high reliability.
● Sealing system……seal rings of NOK from Japan and Busak+Shamban from Germany that can overcome civil engineering construction conditions, as well as special designed sealing system are applied to prevent grit and dust, reduce oil leakage and obtain optimal piston rod oil film.
● Cylinder body……the thickness of cylinder body an d flange can be changed; the cylinder inner surfaces manufactured as per appropriate intensity and dimensions have excellent roughness and rigidity and better wearing capacity after roll finishing.
● Piston rod……high frequency quenching followed by
nickel chrome plating to improve rust proofing and wear and scar resisting performance.
● Safety/buffer functions……valves with slow stroke, counting balance and emergency close can be installed easily according to requirements. The concealed ones can absorb the impact of buffer device at the end of stroke. |