Nord-Lock Group 关于Expander System 使用有史以来最好用的轴销快速安装

使用有史以来最好用的轴销快速安装

开始节省零件、服务和人工费用

一个典型的采矿企业每年在设备维护和修理上的花费占其运营预算的 35%至 50%。开采、材料处理和材料加工过程中的摩擦和磨损导致了昂贵而耗时的维修需求。40 年来，Expander 膨胀销系统已经为全球最大的采矿设备制造商开发、设计并提供了解决方案，包括卡特彼勒、小松、利勃海尔、沃尔沃等。

No more lug bore wear
No more stuck pins
Improved pin installation time
Improved pin removal time

Because welding and line boring are nonexistent or limited, the Expander System greatly reduces repair time. Not having to maintain pivot mounts every few thousand hours means our operating costs will be significantly lower. - Maintenance Shop Lead, Coal mine, Canada 

Benefits installation

Benefits installation

LESS PREPARATION BEFORE AND AFTER INSTALLATION AND FACILITATES HEAVY AXLE MOUNTING

Expander System is an award-winning patented solution with over one million systems installed since 1985. The design is adaptable for any obstacle, lubrication and application needs. We will help you identify the perfect Expander design for your application. 

  • A permanent solution to lug bore wear 
  • Doesn’t require special skilled technician 
  • Easier mounting with tapered axle, perfect for on-site installation    
  • Alignment facilitated 
  • No need for additional fastening holes, threads or welding of locking ring  
  • No need for fine machining in the lugs (wide tolerances H9 and Ra <3,2) 
  • No need for surface preparation 
  • Increased life expectancy of bushings, bearings and seals  
  • Longer service intervals  
  • Increased safety; no hot works needed, no external party needed to perform installation/repair 

Benefits removal

Benefits removal

AN EASY AND PREDICTABLE REPAIR SOLUTION WITH NO NEED FOR LIQUID NITROGEN OR LANCING

Sleeves, larger lug bores, sleeve flanges, axle installation threads and a tapered axle body all make the Expander System an easy and predictable to install and remove. 

  • Increased safety; no hot works needed, no external party needed to perform installation/repair  
  • Doesn’t require special skilled technician 
  • Sleeves for easier axle removal 
  • Bores not damaged 
  • Spare parts can be supplied regardless of the age of the equipment 
  • Removal tools can be supplied with the product 

Reaching your productivity targets starts with a machine that works as intended

Haul trucks Haul trucks often experience excessive wear on suspension pins and the stabilizer link.
Wheel loaders Wheel loaders often experience excessive wear on steering cylinders and buckets pins.
Dozers Dozers often experience excessive wear on ripper pins and the blade pins.

Zero movement after 9,500-hour trial. Drag-link suspension repair

At the Arizona operation, every haul truck’s drag-link suspension depended on a total of eight pivot pins. Excessive bore wear meant taking each machine down for maintenance every 8,000 hours. Lancing out the old pins, welding and line-boring, re-bushing, and pinning typically took a full 12-hour shift. When the mine ran a 15-month, 9,500-hour trial with Expander, the test truck showed zero movement or wear in the bores.

 

Reduced pin installation time by 10 hours. Stabilizer link repair 

The Wyoming maintenance shop made the Expander System standard throughout its 50-truck fleet after a test showed massive savings on the stabilizer link repairs. Expander reduced pin installation time from a 12 hour shift to a single hour while simultaneously extending pin life from 10,000 hours to 50,000 hours.

Haul truck 了解更多
Aggregate 了解更多
Trucks 了解更多
Trucks 了解更多

Solutions for your entire fleet

Solutions for your entire fleet

Underground mining equipment

Whether you transport materials with load haul and dump (LHD) Loaders, move materials from A to B with electrical and mechanical dump trucks. Counteract dust with water carts, haul road and ramp maintenance with graders. Clean up excavator floor and drag-line floor with dozers. Dig down, moving and loading with excavators or digging above ground with shovels and draglines. Expander System pivot pins will keep your equipment moving and working as intended.

Loader Loaders often experience excessive wear on the steering cylinders.
Continuous miner Nord-Lock washers and Superbolt tensioners are used on equipment subjected to heavy vibrations.
Underground hauler Underground haulers often experience excessive wear on the rear suspensions pins, stabilizer link and lift cylinders.

We make sure mining applications exposed to extreme loads and constant vibrations keep functioning as intended

The Nord-Lock Group prides itself in finding the most suitable solutions to your most pressing bolting and pivot pin challenges and can secure everything from tooling to the most critical and exposed joints.

Customer cases

客户案例 中国煤炭市场的商机 西安煤矿机械有限公司批准将Nord-Lock防松垫圈和Superbolt预紧器作为其采煤机和掘进机的专用组件。 了解更多
客户案例 专为严苛施工打造的 在矿产开采行业中，每一分钟的停工都会造成收入损失，而一个松动的紧固件亦会造成不少损失。这正是Joy Global从不忽视螺栓安全问题的原因。 了解更多
客户案例 地下作业 Sandvik Mining and Construction 此前在使用螺栓将切削刀具夹紧铰孔刀头上时遇到了问题；这些螺栓有时会在极端的振动、负载和扭矩下松动。而更换因振动而松动的螺栓不仅成本很高、非常耗时，而且常常具有危险性。 了解更多
客户案例 有益的震动 Metso Minerals France 生产的巨型机械犹如一个个钢铁怪兽。机器通常讲究的是减震，但Metso 机器存在的理由是尽可能多地震动，从而将石块分级，以用于建筑业又或采矿业。 了解更多
客户案例 破碎机滚筒钻头 挑战 在地下使用破碎机开采煤炭时，恶劣的工作环境会对破碎机滚筒钻头造成严重损害。破碎机运行期间，由于钻头不断切割煤块和岩石，因此须保持较高转速，并且期间会连续遭受冲击，所以整个应用过程动作异常剧烈。在某些情况下，钻头会完全脱离滚筒，由此导致滚筒工作效率降低。因此，破碎机滚筒钻头需要频繁修理或更换，而为了节省时间和成本，这些操作需要在井下完成。 空间有限、操作困难成了维护工作的难题。有时，工人... 了解更多

A modern and tested alternative to repair wear in lug bores on heavy equipment 

A pivot pin repair using Expander System can be carried out directly in the worn mountings/bores without welding and line boring. Multibolt and throughbolt when access to only one side is solutions for mining equipment.

  1. When the fasteners are tightened, the washers press the slotted expansion sleeves up the tapered ends of the pin.
  2. The sleeves expand to conform with wear patterns and lock the system in place.
  3. Expander System fits into the existing mount without expensive welding and line boring.
  4. Once re-torqued according to instructions, the system locks from both sides for significantly greater stability.
  5. Removal and reinstallation are easy, and the system is reusable indefinitely.

PROOF OF A MORE STABLE LOCKING!

A traditional straight pin only distributes the load onto a very small area, due to the play needed to mount the pin into the lug. The Expander System distributes the pressure over the whole contact area in the direction of the force.

Technical support

Technical support is readily available through our Technical Centers, which is a part of the Nord-Lock Group Performance Services. The Technical Centers are complemented with the experience and competent skills of our engineers. 

Regulatory ​compliance

We can deliver certificates and testing according to your needs. For example, certificates according to EN1FAQ0204 or Ultrasonic-, Magnetic particle- and Charpy testing. Our engineers can also visit your site for real-life testing.

Solutions Partner

If you have an engineering challenge, we will provide you with a solution that maximizes the productivity, safety and reliability of your mining application. We are the only manufacturer in the industry with a lifetime warranty.  

Service & support

From production to engineering and sales, we have a world-class team across the globe that is ready to support you. Our services focus on life cycle profitability, design, production, training and installation support.

Installation support

We are represented in more than 25 countries and can support you during installation. Our engineered pins easily slip into position, adapt to out-of-round bores tightly enough to minimize destructive clearance in the bore.

Trial and field tests

Are you interest in a trial or an on-site Expander pivot pin test for your mining application? We conduct test and trials to help verify Expander System solves wear in the lug bores on any heavy machine.

Want to know more about what Expander Systems can do for you?

Add your information below and an Expander expert will be in contact with you shortly.

To read more on how we handle your contact details please see our Privacy Policy.

Thank you! We will be in contact with you shortly.

选择您所在在国家