Expander bolt




Pivot Pin Technology

Lug wear is a common problem with all machinery. Repairs involve a costly, time-consuming process with significant downtime and must be repeated several times over a machine’s life.

With the Expander System, the repair can be carried out directly in the worn mountings without welding and line boring – a permanent solution to lug wear.


Installation Guide: 

  1. The Expander System is installed directly into the existing mounting
  2. Upon tightening the fasteners, the washer presses the slotted expansion sleeve up the tapered ends of the pin
  3. The sleeves expand, conform with the wear pattern and lock the system in the lug ears
  4. Once retorqued, the system will lock from both sides

Quality & Traceability

The patented Expander System has been endurance tested for over 50,000 hours without failure and more than 1 million pivot pins have been installed in over 60,000 applications. 

Our production facilities around the world are equipped to enable high-speed manufacturing and delivery of complete pivot assemblies. 

We in­vest in the latest production technol­ogy to ensure maximum capability and quality, and we produce all parts of the Expander System.


We can deliver certificates and test­ing according to your needs. For exam­ple, certificates according to EN10204 or Ultrasonic-, Magnetic particle- and Charpy testing.

  • DNV for the offshore industry
  • TÜV Rheinland

Quality & Environmental Assurance

  • DNV 2:22/ OS E-101
  • API 8C/ISO 13535
  • ISO 9001
  • ISO 14001

Traceability & Control

The Expander Systems are dot pin marked with a lot number to ensure that you know exactly from where the steel originates and when it was made. You also have the opportunity to mark Expander axles with your brand to show your customers that you take pride in the details.

The Expander System is a recipient of the Alfred Nobel Swedish Innovation Development Award. 


在我们网店快速轻松地订购 —— 以10,000 多种机器为主的 60,000多种不同的销栓 应用,您可随心选择。

如需订购,请从我们的订购菜单中选择 您需要的轴销, 或在尺寸表上填写您的 枢轴数据,我们的工程师然后与您联系 并提供建议的解决方案。

无论您选择何种方法,我们都始终保证 Expander System能够一劳永逸地解决您 的耳板磨损问题!

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