---
title: "Coach - Train Doors"
canonical: "/coach-train-doors"
published: 2026-10-12
---

# Coach - Train Doors

## Frame

## Frame

**Rail**

**Coach**

**Train doors**

## Frame

### ESP4C mechanism

###### TRAIN DOORS

##### ESP4C mechanism

**Datasheet**

**Videos**

##### Electrical Sliding Plug Door Mechanism

**Customer benefits**

The ESP4C Electrical Sliding Plug Compact Door Mechanism is a high-performance solution designed for modern rail vehicles, offering exceptional reliability and versatility. With over 20,000 belt-driven systems in service worldwide, it has proven its durability across various applications. A single actuator powers both leaves of a double door while also managing the locking function, simplifying the system architecture and enhancing operational efficiency. Its standardized design ensures that 73% of parts are shared between single and double door configurations, streamlining maintenance and reducing inventory complexity.

One of the standout features of the ESP4C is its lightweight construction. The operator is 30% lighter and more compact than comparable products on the market, saving up to 20 kg per door system. This reduction in weight contributes to improved energy efficiency and easier installation. Technically, the ESP4C accommodates a wide range of door sizes: single leaf doors from 650 to 1400 mm and double leaf doors from 1200 to 1800 mm, with plug movement of 70 mm. It offers flexible vertical coordination options, either through vertical bars or lower swing arms. The mechanism, including the hanger device, weighs 46 kg for a 1300 mm double door and withstands pressure waves up to 2500 Pa. Noise emissions are kept below 75 dB on average, with peak levels not exceeding 80 dB, making it a quiet and robust choice for modern rail systems.

### Cybersecure DCU

###### TRAIN DOORS

##### Cybersecure DCU

**Videos**

##### One DCU for door and Step Control, 
enabling CRA Compliance and Digital Resilience

**Customer benefits**

The Door and Step Control Units support up to three motors and are designed for easy integration. They enable condition-based maintenance through frequent data sampling and continuous monitoring. Key features include Ethernet connectivity, a web interface, and flexible port configurations. Their architecture support safety level segregation without extra project assessments. Built on a validated software platform with SL2, they require no additional safety development. Optional functions include speaker output, safety relay, and sensitive edge input for antidrag mechanisms. 

Our Digital Control Units are at the core of our products’ compliance with the Cyber Resilience Act. It ensures the product is secure by design and default. The DCU manages secure configurations, controls access, and protects the confidentiality, integrity, and availability of data and essential functions. It enables timely security updates, monitors internal activity, and supports responsible data handling by processing only what is necessary. Designed to reduce attack surfaces and mitigate incident impact, the DCU also empowers users to permanently and securely erase data and settings.

### Sliding steps

###### TRAIN DOORS

##### Sliding Steps

##### High-level of Standardisation for 
Best-in-class Reliability

**Customer benefits**

This fully integrated access system combines door and step control into a single unit, driven by one Door Control Unit (DCU), simplifying installation and reducing system complexity. Its compact design supports easy integration into various vehicle types, including configurations adapted for Persons with Reduced Mobility (PRM). The system meets stringent international standards such as PRM TSI and EN 14752, and is compliant with ADA requirements. With over 10,000 units in service worldwide, it demonstrates high reliability and a proven track record in diverse operating environments.

The system features electric motorization with an irreversible drive, ensuring self-locking in any position without power. Available in cassette or floor-integrated mounting options, it includes lockout and manual modes for operational flexibility. Typical specifications for a 1,300 mm door include a thickness of 57 mm, weight of 65 kg, stroke range of 150–500 mm, and opening/closing time of 2.5 seconds for a 300 mm stroke. A “touchless” version is also available, using ultrasonic sensors to reduce the required stroke and eliminate contact with the platform, improving safety and minimizing space requirements.

**ESP4C**

**Cybersecure DCU**

**Step**

## Frame