How to install the KPO rail fasteners system?
To install a KPO rail fastener system, first position and secure the baseplate to the foundation or sleeper. Then, place the rail on the baseplate, ensuring the rail is correctly positioned. Next, install the KPO clamps, followed by the T-bolts and washers, tightening the nuts until the spring washer is nearly compressed, and then perform a final tightening to secure the rail.

Installation steps
- Position the baseplate: Place the baseplate on the foundation or sleeper, ensuring it is properly spaced and aligned according to the track plan.
- Secure the baseplate: Fix the baseplate to the foundation or sleeper. For concrete sleepers, this usually involves using pre-embedded dowels (or screws) and anchor bolts.

- Install the rail: Carefully place the rail on top of the baseplate and any necessary pads.
- Insert and tighten fasteners:
Insert the T-bolt through the appropriate holes in the clamp and baseplate.
Place the adjusting plate and upper cover plate.
Add flat and spring washers, and then the nut.
Initially tighten the T-bolt until the spring washer is about 2mm from the joint or a preliminary tension is achieved.
- Final tightening: Adjust the baseplate for the correct track gauge if needed.
Finally, tighten the T-bolt to its final pressure, compressing the spring washer to the specified point to ensure a rigid and secure connection.
Products Description

| KPO fastening system | ||||||
| KPO clamp | Screw spike | HS bolt | Hex nut | spring washer | Base plate | |
| Pieces required | 4 | 8 | 4 | 4 | 8 | 2 |
| 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 | 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 |
GNEE RAILWAY RAILWAY offers different kinds of railway fasteners to meet client's requirements, such as Elastic Rail Clip and Clamp, Rail Screw Spike, Plastic Dowel, High Tensile Track Bolt with Nut, Rail Base(Tie) Plate, Rail Fish Plate, Railway Shoulder(Insert), Fish Bolt, Railroad Rubber and EVA Pad, etc. Samples and drawings provided by customer, we will manufacture qualified products accordingly.

