The 12-6877-02 six-axle articulated-type gondola car with unloading hatches is unrivaled at the CIS market; it is designed for efficient transportation of cargoes in a wide range of densities.

The gondola car is unique in that it boasts an increased body volume and enhanced payload compared with other models available in the market. These parameters were attained owing to the fact that the articulated gondola car is fitted with the SAC-1 articulated connector that joins the two sections of the car and ensures flawless passing through track curves including those with small radii.

The 12-6877-02 gondola car model is compatible with public and private infrastructure and can be sent over a classification hump with no limitations. Each body section has ten unloading hatches to ensure a fast discharge of its cargoes. Also, the design of the car allows unloading with tandem dumpers used at large Russian ports as well as unloading with the modern VRS-125, VRS-134 models.

Extended service lives and maintenance intervals provide significant savings on life-cycle costs.

Using this car type to form trains will allow reducing the number of cars required for transportation and increase the weight norm staying within the standard train length, which raises transportation efficiency and boosts the railway network throughput capacity by up to 40%.

Designed by: All-Union Research and Development Centre for Transportation Technology, LLC.

Producer: Tikhvin Freight Car Building Plant, JSC.



Technical specification

Model 12-6877-02

Number of sections, pcs 2
Number of axles, pcs 6

Payload capacity, t


Body space, m3


Tare weight, t 35.0±0.5
Length over coupler pulling faces, mm 19,540±25
Wheel base, mm 14,620

Car width, mm

Car height, mm 3,880
Internal dimensions of the section:
clear length at upper chord
clear width at upper chord 

Number of unloading hatches in each section, pcs 10
Gabarit 1-Т

Load per meter of track, t/m


Bogie model


Estimated static load from the wheel set on rails, kN (tf)

245.25 (25)

Regulatory overhaul period, thousand km (years)

500 (6)*

Service life, years 40

*According to the results of controlled operation, the period can be extended.