德国SEFKO双螺旋弹簧，术业名词Helical disc spring，由两个相同的扁线压缩弹簧组成,通过螺旋相互拧紧，来实现与盘式碟簧组相似的截面。连续的扁线结构避免了冲压件造成的分子结构破坏，从而增强了组件的耐用性，同时降低了盘式弹簧片错位、破碎带来的风险。负荷的增加与螺旋弹簧钢的弯曲应力成正比。我们同样可以在卷曲过程中实现螺旋碟簧的倾斜缠绕，来展示压缩弹簧的特点，同时达到盘式碟簧组的高负荷特点。

相比普通的碟形弹簧组合，SeFko双螺旋弹簧基本优势一览:

•单一组件设计,没有拆分为单独的片状,避免了传统碟簧组使用过程中错位的现象；

•装配和维护更加易操作、低成本；

•用小的外径达到超高的弹簧负载，弹性磁滞低；

•避免因错误的叠加方式或涂油导致的力值错误；

•连续钢带结构使性能更持久；

•较高的操作安全性， 

•可根据客户要求设计弹簧性能；

•可避免弹簧与导杆或套筒之间的摩擦，允许免导杆运行；

•可适应极端的的工作环境和温度变化；

•灵活而经济的生产能力可接受任何数量的订购；

规格类别：

德国SEFKO双螺旋弹簧所有的规格均是定制品（客制化），市场上的规格均是各品牌主轴厂商与我们精心设计的产品。为了保障主轴厂商的利益，所有新设计的产品，我们将对其规格作保密处理。确保主轴厂商的售服得到有效的保障。

应用广泛：

德国SEFKO双螺旋弹簧主要使用于机床核心部件主轴内，目前欧美高速主轴已经普遍使用该产品，另外钢厂、刹车系统、阀门、石油钻孔机、核电均有涉及使用SEFKO双螺旋弹簧。

德国SEFKO双螺旋弹簧所有的规格均是定制品（客制化），市场上的规格均是各品牌主轴厂商与我们精心设计的产品。为了保障主轴厂商的利益，所有新设计的产品，我们将对其规格作保密处理。确保主轴厂商的售服得到有效的保障。

应用广泛：

德国SEFKO双螺旋弹簧主要使用于机床核心部件主轴内，目前欧美高速主轴已经普遍使用该产品，另外钢厂、刹车系统、阀门、石油钻孔机、核电均有涉及使用SEFKO双螺旋弹簧。

German SEFKO double coil spring, the professional term Helical disc spring, consists of two identical flat line compression springs by screw tightening to achieve a similar section to the coil set. Continuous flat line structure avoids the molecular structural damage caused by the stamping parts, thus enhancing the durability of the component, while reducing the risk of dislocation and fragmentation of the disc spring plates. The increase in load is proportional to the bending stress of the spiral spring steel. We can also realize the tilt winding of the coil disc spring, to show the characteristics of the compression spring, while achieving the high load characteristics of the disc spring group.

Compared with the ordinary disc spring combination, SeFko double spiral spring basic advantages:

A single component design, not divided into separate pieces, to avoid the phenomenon of dislocation in the use of the traditional disc group;
Assembly and maintenance are easier to operate and at low cost;
With a small outer diameter to achieve an ultra-high spring load, low elastic hysteresis;
Avoid the wrong force value due to the wrong stacking mode or oil coating;
Continuous steel strip structure makes a more lasting performance;
High operational security,
Spring performance can be designed according to customer requirements;
Avoid friction between spring and guide rod or sleeve and allow guide rod operation;
Adapt to the extreme working environment and temperature changes;
Flexible and economical production capacity accepts any number of orders;

Specification & Category:

All the specifications of German SEFKO double spiral spring are fixed products (customized), and the specifications in the market are carefully designed products of each brand. To protect the interests of the spindle manufacturer, all the new designed products, we will treat the specifications confidential. Ensure that the service sales of the spindle manufacturers are effectively guaranteed.

Extensive used:

SEFKO double spiral spring in Germany is mainly used in the main axis of the core parts of machine tools. At present, this product has been commonly used in the high-speed spindle in Europe and the United States. In addition, steel mills, brake systems, valves, oil rigs and nuclear power.