Carriage/End Supports for Moving Bridge Systems

Product Specifications

Technical details and manufacturing context for Carriage/End Supports

Definition

Carriage/End Supports are critical structural elements in moving bridge systems that serve as the interface between the moving carriage and the stationary bridge framework. They provide both vertical support to bear the load of the carriage and its contents, and horizontal guidance to ensure precise linear movement along the bridge axis. These supports typically incorporate bearing surfaces, alignment mechanisms, and sometimes damping elements to absorb operational forces and vibrations. In typical configurations, they are mounted at the ends of the bridge structure, where they engage with rails or guides to constrain the carriage's motion. The supports are designed to handle rated loads ranging from 5 to 50 tonnes per support, with travel speeds up to 60 m/min, and positioning accuracy within ±0.5 to ±2 mm. They operate within a temperature range of -20°C to 60°C and are available with ingress protection ratings from IP54 to IP65, depending on the environment. The supply voltage for control and auxiliary systems is 24 V DC ±10%. Materials commonly used include structural steel and alloy steel, with material grades such as Q235B to Q345B, conforming to standards GB/T 700 and GB/T 1591. The rail span, or distance between rail centers, ranges from 2 to 10 meters, and wheel diameters from 200 to 500 mm. Each support weighs between 500 and 3000 kg, affecting installation and foundation requirements. These supports are essential for ensuring the safe and accurate operation of moving bridge systems in industrial applications. It is important to verify model-specific values and standards with the legal manufacturer or supplier before procurement or installation.

Working Principle

The supports function by distributing the weight of the moving carriage across their contact surfaces while maintaining alignment through precision-machined guides or rails. They allow the carriage to move smoothly along the bridge length while preventing lateral deviation, vertical sagging, or rotational movement that could compromise system accuracy or safety. The load is transferred from the carriage to the support via bearing surfaces, which are designed to minimize friction and wear. Alignment mechanisms, such as adjustable guides, ensure that the carriage remains on track. Damping elements, if present, absorb vibrations and shock loads, enhancing stability and reducing stress on the structure. The supports must be properly sized and installed to handle the specified load capacity and travel speed, and regular maintenance is required to ensure continued performance.

Common Materials

Structural Steel, Alloy Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Load Capacity	5–50 t	Maximum load per support; exceeds this risks structural failure.
Travel Speed	10–60 m/min	Higher speeds require more precise alignment and damping.
Positioning Accuracy	±0.5–±2 mm	Critical for automated processes; tighter tolerance increases cost.
Operating Temperature	-20–60 °C	Outside this range, lubricants and seals may fail.
Ingress Protection	IP54–IP65	IP65 for dusty or wet environments; IP54 for indoor use.IEC 60529
Supply Voltage	24 ±10% V DC	For control and auxiliary systems; other voltages available.
Material Grade	Q235B–Q345B	Higher grade for heavy loads or corrosive environments.GB/T 700, GB/T 1591
Rail Span	2–10 m	Distance between rail centers; affects stability and footprint.
Wheel Diameter	200–500 mm	Larger wheels reduce ground pressure and wear.
Weight	500–3000 kg	Per support; affects installation and foundation requirements.

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

Support Base Plate Part
Primary load-bearing surface that distributes weight to the bridge structure

Material: Structural Steel
Alignment Guide Rails
Precision-machined surfaces that guide carriage movement and prevent lateral deviation

Material: Hardened Alloy Steel
Mounting Brackets Part
Attachment points for securing the support to the bridge framework

Material: Steel
Bearing Surfaces
The faces the carriage actually rides on; the whole load passes through them.
Damping Elements Optional
Absorb vibration and shock so the structure sees less stress, on supports fitted with them.

Applied To / Applications

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

Moving Bridge Structure

View system integration details

Manufacturers of Carriage/End Supports

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Frequently Asked Questions

What are the typical load capacities for carriage/end supports?

The rated load capacity per support ranges from 5 to 50 tonnes, as listed in the directory. The actual capacity required depends on the weight of the carriage and its contents. Always verify the specific load rating with the manufacturer for your application.

What materials are used for carriage/end supports?

Common materials include structural steel and alloy steel, with material grades such as Q235B to Q345B, conforming to standards GB/T 700 and GB/T 1591. The choice of material grade depends on load requirements and environmental conditions.

What is the operating temperature range for these supports?

The operating temperature range is -20°C to 60°C. Outside this range, lubricants and seals may fail, so it is important to ensure the supports are suitable for your environment.

How do I choose the right ingress protection (IP) rating?

The IP rating indicates protection against dust and water. IP54 is suitable for indoor use, while IP65 is recommended for dusty or wet environments. Select the rating based on the installation location and exposure to contaminants.

Data Basis

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

Preliminary Technical Classification

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pressure:	Not applicable (structural component)
other spec:	Max dynamic load: 50 kN, Max static load: 75 kN, Max carriage speed: 2 m/s
temperature:	-40°C to +120°C

Carriage/End Supports

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards