Rail Clamps

Rail clamps are used for fixing the rails to the tie plates or sleepers, which is of the similar function to the rail clip, but the clamping force of the rail clamp is much higher than normal rail clips. That is why the rail clamps are mostly used for crane rails.

Rail Clamps

  • Main Function

    Rail clamps are used for fixing the rails to the tie plates or sleepers, which is of the similar function to the rail clip.
  • Types

    Variety types of KPO Clamp, Crane Clamp of Single hole, Crane Clamp of Doule Hole, etc
  • Surface Treatment

    Plain oiled, Black Oxide, Zinc, HDG, etc
  • Material

    Q235, QT450-10, ZG35

Application for KPO Rail Clamp

Item Component Types Material
1 KPO Clamp KPO3/KPO6/KPO9 Q235
2 Screw Spike Ss8 35K
3 Rail Dowel Sdu9, Sdu25 HDPE/PA6
4 Bolt&Nut&Washer Hs32 35K
5 Tie Plate UIC54/UIC60 Q235/QT450-10

Types of Rail Clamps

Types Photo Features

Crane Clamp Single Hole​

1. Enable the rails to be installed with good tolerances;
2. Be adjustable to ensure the rails’ precise alignment;
3. Can be bolted or welded depends on installation requirements.

Crane Clamp Double Hole

1. It’s special design of self locking is to secure the rails and fix it with a rubber nose.
2. can be used in different rail types by adjusting the height of the rubber nose.

KPO Rail Clamp

1. Boltable clip with high strength.
2. KPO3, KPO6, KPO9 are mostly used in KPO rail fastening systems,
by combining with ribbed tie plates, rail bolts and washers.

Do You Have A Railway Project We Can Help With?



GK Group,  is an enterprise manufacturing railway fasteners, whose products cover fields of railway, urban rail, mining, etc.
There are two factories located in Zhangzhou Fujian and Anyang Henan, which are all CRCC and ISO certificated, with a total area of about 320,000 ㎡, workers over 300, and an annual sales volume of over RMB 200,000,000.

Founded in 1960, With over 50 years of specializing in railway fasteners, GK has served many demanding markets worldwide, including USA States, Chile, Argentina, Ecuador, Brazil, Thailand, Indonesia, Malaysia, Vietnam, Spain, Italy, Romania, England, Kazakhstan, etc.

What do we


We have 4 automatic clip production lines with robot hands, which have the production volume for 60,000 pieces clips per day.
Avantages for robot hands production:

– Guarantee the dimensions stability
– Increase the quality
– Maximum the production volume
– Reduce labor cost

With the advanced forging production lines, we are able to produce screw spikes, rail bolts, rail clamp, rail anchor, and all other forged products.

Our advantages:

– Advanced production equipment, mature production technology and perfect quality assurance system.
– High production volume, able to produce with the fastest speed.
– Mature management system with lowest cost, which guarantee the quality stability.
– Competitive price with best service.

We use lost foam casting process, the advantages as below:

– Without Limits.Lost Foam enables geometrically complex cast parts to be created with the highest quality.
– Dimensionally exact. – High dimensional accuracy and low tolerances.
– Better Surface. Surface smooth and less flaws.
– Without subsequent machining. Lost Foam is done without a core and without burrs so that there is almost no subsequent fettling work.
– Weight reducing. Lost foam enables the creation of thin-walled, filigree cast product.
– Environmentally friendly. Energy efficient casting process with low emissions and closed mould material circulation.

With advanced injection machines, we are able to offer:

– Angle plate or rail insulator
– Rail pad
– Plastic dowel
– Other products according to customer’s needs

We are able to do various surface treatment with the most advanced technology. All the surface treatment is eco-friendly and finished in our own factory.

– Electrostatic spraying for rail clips. Anti-corrosion for 2 years.
– Darcromet for most rail fasteners. Anti-corrosion for 10 years.
– Zinc-nickel alloy co-permeation for most fasteners. Anti-corrosion for 20 years.

Our testing center the most advanced testing equipment:

– Universal testing machine
– Spectroscopic test machine
– Hardness Test machine
– Cold Bending Test Machine
– Fatigue test equipment for clip
– Fluorescent magnetic particle inspection machine
-Salt spray test equipment

Our Certificates

With ISO and CRCC certificated, Guokeng tries its full efforts to save cost for each client by upgrading our Production Equipment & Inspection Facility & Quality Management System to be more efficient, economy, and also with good quality control capacity. Quality and reliability are always our culture. We will never stop upgrading and developing, and will spend our whole life in delivering best quality and service.

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