P65 turnout, mark 1/9, 1524 mm gauge, Dn 340.00.000; (-01) for reinforced concrete sleepers

Taking into account the urgent need of industrial railway transport to replace the wooden sleepers of turnouts with reinforced concrete ones, JSC "DnSZ" has developed a project of P65 turnout, mark 1/9, 1524 mm gauge, Dn 340.00.000; (-01) for reinforced concrete sleepers, Dn 340-BS.

In order to adapt the geometric parameters of the new turnout to those of the turnouts for industrial technological transport, the geometry of P65 turnout, mark1/9, 1524 mm gauge, LPTPT.665121.001Dn, and 65109Zh-BS reinforced concrete sleepers designed for M2215 turnouts were used in this project.

On June 6, 2023, a working committee was held at JSC "DnSZ" to inspect new products. The following specialists took part in the work of the commission: Leonid DRUGAKOV, head of the railway workshop of Yuzhkoks PJSC, Oleksandr SHURUEV, head of the overhaul department of PJSC Zaporizhstal, and representatives of JSC DnSZ Oleksandr KAYDAS, Volodymyr DROGAITSEV and Klara KORNOUKHOVA.

The turnout can be used with both manual (1709) and  electric (SP-6) switch machines:

• Dn 340.00.000; (-01) – for manual switch machine – Dn 340.50.000 fittings with 1709;
• Dn 340.00.000-02; (-03) – for electric switch machine –  Дн 340.40.000 fittings and SP-6. Electric switch machine is not included.

The main design features of the turnout:

• plates with high flanges. KBL 65 with cast PKL rail clip in the switch zone;
• the switch has three connecting strips to ensure stability of the track;
• pivoted tongues of crossing type treated at high-frequency induction heating machine;
• adjusting gaskets are provided for the second gauge control rod;
• rail-bound frog with reinforced plates;
• check rail in the front stock rail overhang;
• frog check rail with check rail made of rolled rail;
• turnouts for electrical interlocking are supplied with an insulated joint;
• a set of rubber sleeper pads;
• on sleepers No. 29 - No. 30 along the inner thread of the side track, No. 57 t - No. 58 on the outer threads in the joints, special pads are installed for the possibility of using the existing sleepers and ensuring the reliability of fastening the pads to the sleepers using the PKL rail clip;
• insert bolt fastening of sleeper pads.

The use of plates with high flanges ensures the reliability of fastening the rail elements to the pads and their fastening the sleepers.

Dn 340 turnout can be used instead of LPTPT.665121.001Dn turnout.

The participants highly appreciated the innovative solutions and quality, and expressed their desire to see the new products in action as soon as possible.

Photo 1 - P65 turnout, mark 1/9, 1524 mm gauge with Dn 340 manual switch machine at the testing site of JSC "DnSZ"

Photo 2 - Rail-bound frog for Dn 340 turnout

Photo 3 - Switch rail of Dn 340 turnout

In addition, the following was presented for review: Derail system for P65 type rails on Dn 939.00.000-02 reinforced concrete sleepers, which is currently being coordinated with Ukrzaliznytsia specialists.

Photo 4 - Placed Dn 939 derail system for rail car

Photo 5 - Dn 939 derail system in the position for free passage of the rail car