KPO Railway Elastic Clip Fastening System

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KPO Clamp Rail Fastening System

The KPO clamp rail fastening system is a commonly used solution for securing railway tracks. It consists of KPO clamps, iron pads, and bolts that connect the rails to the sleepers. The KPO system employs a rigid connection ensuring that the rails remain firmly fixed in place and preventing track loosening or movement. Its effectiveness in supporting heavy loads and its durability under harsh conditions make it a preferred choice for heavy railways, port transportation, and mining tracks.

KPO railway fastener system components

KPO fastening system

KPO clamp

Screw spike

HS bolt

Hex nut

spring washer

Base plate

Pieces required

Material

Q235

Grade 4.6: Q235 Grade 5.6: 35# Grade 8.8: 45#

Grade4.6: Q235 Grade5.6: 35# Grade8.8: 45#

Grade 5: 35# Grade 8: 45#

65Mn

Casting iron QT500-7, QT450-10, or forging low carbon steel or high carbon steel;

Type;

KPO3, KPO6, KPO9

M24X150mm M24 x160mm M24 x180mm

HS26, HS32

As ordered

UIC54,UIC60, 50kg rail, 60kg rail,S49 in ordered size

NOTE

Standard: DIN5906

Standard: ISO898-1, UIC864-1 and NF F500-50

Diameter: 22mm or 24mm. Length: 55mm, 65mm, 75mm, 90mm

Standard: DIN985

Standard: UIC864-3

Standard: UIC864-6

Other railway fastening systems

SKL3/SKL12/SKL14 rail fastening system

SKL rail fastening systems (SKL3, SKL12, SKL14 ) are known for their excellent fatigue resistance and stability and are widely used in European railway systems. It applies to high-speed railway and urban rail transit.

Item	Quantity	Material
SKL tension clip	2	60Si2CrA, 60Si2CrA, 38Si7
Ss35 screw spike	2	Grade 4.6: Q235
		Grade 5.6: 35#
		Grade 8.8: 45#
Flat washer	2	Q235
Plastic dowel	2	HDPE, Reinforced Nylon 66 (PA66)
Guide plate	2	Reinforced Nylon 66 (PA66)
Rail pad	1	EVA, or rubber

Nabla Clip Rail Fastening System

Item	Quantity	Material
Clip	2	60Si2MnA, 60Si2CrA
Insulator	2	Reinforced Nylon 66 (PA66)
Screw spike	2	Grade5.6:35#
Spring washer	2	ML08AI

Contact Us

As a trusted manufacturer in the railway industry, we specialize in high-performance fastening systems, including SKL clips, Pandrol clips, rail spikes, and other critical rail components. Our products are used in major rail projects worldwide, backed by strict quality control and adherence to international standards.For inquiries or customized orders, contact us today for expert support and competitive pricing.

spring clip

fasteners system

rail fixing