Container Lock System for Terminal Tractors

Product Specifications

Technical details and manufacturing context for Container Lock System

Definition

The Container Lock System is a critical safety component of terminal tractors designed to firmly secure ISO shipping containers during movement within port terminals, yards, and intermodal facilities. It prevents container shifting, tipping, or detachment during transport, ensuring operational safety and efficiency. The system typically uses hydraulic cylinders or mechanical actuators to engage locking pins or twist locks into the corner castings of shipping containers. When activated, the locks extend and rotate to securely grip the container's standardized corner fittings, creating a rigid connection between the container and the tractor chassis. This product is a component used in the manufacturing of terminal tractors, classified under Other Transport Equipment Manufacturing. It is designed for ISO standard containers (ISO 1496-1) and operates within specified parameters: rated load capacity of 20–45 t, operating pressure of 1.0–1.6 MPa, locking force of 150–250 kN, operating temperature range of -40 to 85 °C, protection rating of IP54–IP65, locking time of 2–5 seconds, weight of 80–150 kg, material grade Q345B (high-strength alloy steel), hydraulic oil viscosity of 32–46 cSt, maximum lateral force of 50–80 kN, voltage of 24 V DC (±10%), and cycle life of 50,000–100,000 cycles. These values are reference ranges and must be verified for the specific model and application. The system is designed to meet ISO 1496-1 for container dimensions and testing for pressure ratings, IEC 60529 for ingress protection, GB/T 1591 for material grade, ISO 3448 for viscosity classification, and ISO 7638 for electrical connectors. Always confirm model-specific values and standards with the legal manufacturer or supplier before procurement or use.

Working Principle

The system operates via hydraulic or mechanical actuation. When activated, locking pins or twist locks extend and rotate to engage the corner castings of the container, creating a rigid connection. Hydraulic systems use cylinders powered by the tractor's hydraulic circuit, while mechanical systems use manual or power-assisted levers. The locks are designed to withstand rated loads and lateral forces, ensuring secure retention during transport. The system includes sensors and solenoid valves for control, operating at 24 V DC. The locking time is typically 2–5 seconds, and the system is protected against dust and water jets (IP54–IP65).

Common Materials

High-strength alloy steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Load Capacity	20–45 t	Exceeding rated load risks structural failure.ISO 1496-1
Locking Force	150–250 kN	Ensures secure container retention during transport.
Operating Temperature	-40–85 °C	Outside range, seals and hydraulics may fail.ISO 1496-1
Protection Rating	IP54–IP65	Protects against dust and water jets.IEC 60529
Locking Time	2–5 s	Faster locking improves cycle time.
Weight	80–150 kg	Affects terminal tractor payload.
Material Grade	Q345B	High-strength steel for durability.GB/T 1591
Hydraulic Oil Viscosity	32–46 cSt	Viscosity affects system response at low temp.ISO 3448
Max. Lateral Force	50–80 kN	Resists side loads during cornering.
Voltage	24 ±10% V DC	For solenoid valves and sensors.ISO 7638
Cycle Life	50000–100000 cycles	Defines maintenance interval.

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Locking Pin Part
Engages with container corner casting to secure container

Material: Hardened alloy steel
Actuator Cylinder
Provides mechanical force to extend/retract locking mechanism

Material: Steel with hydraulic seals
Control Valve
Regulates hydraulic/pneumatic flow to actuate locks

Material: Brass or stainless steel
Sensors
Confirm the locks are extended and seated before the tractor moves.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Container Lock System.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Terminal Tractor

View system integration details

Manufacturers of Container Lock System

Manufacturer profiles associated with Container Lock System.

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Frequently Asked Questions

What is the rated load capacity of the Container Lock System?

The rated load capacity is 20–45 tonnes, as per ISO 1496-1. Exceeding this range risks structural failure. Always verify the exact capacity for your specific model.

What is the locking force and why is it important?

The locking force is 150–250 kN, ensuring secure container retention during transport. This force prevents shifting or detachment. Verify the locking force for your application.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C, per ISO 1496-1. Outside this range, seals and hydraulics may fail. Check the temperature limits for your environment.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 300 bar (hydraulic systems)
other spec:	Container weight capacity: 20-40 tons, Locking force: 50-150 kN
temperature:	-40°C to +80°C

Container Lock System

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards