Editorial Technical Reference

Carrier Trolley

This page explains how Carrier Trolley is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A rolling component that travels along overhead conveyor tracks to transport suspended loads.

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Product Specifications

Technical details and manufacturing context for Carrier Trolley

Definition
The carrier trolley is a critical component of overhead conveyor systems, designed to move along suspended tracks while carrying various loads via hooks, baskets, or other attachments. It enables efficient material handling by providing smooth, guided transportation of items through manufacturing, assembly, or storage facilities. The trolley typically consists of a steel or cast iron frame with wheels or rollers that engage the track, and it may include polymer bearings to reduce friction and wear. It is available in configurations suited for different load capacities, track widths, and operating conditions. The rated load capacity ranges from 500 to 2000 kg, and the track width must match the overhead rail, typically between 100 and 300 mm. Wheel diameters vary from 80 to 200 mm, affecting rolling resistance and load distribution. The maximum travel speed is 0.5 to 2.0 m/s, with higher speeds potentially requiring damping. Operating temperature ranges from -20°C to 80°C, and the maximum non-condensing humidity is 95% RH. The frame material grade is typically Q235B carbon steel per GB/T 700, with optional stainless steel. Overall dimensions range from 400×200×300 mm to 800×400×600 mm, and net weight is between 15 and 60 kg. Wheel hardness is specified as HRC 40–50 to ensure wear resistance on the rail. If electrical components are equipped, the IP rating is IP54–IP65 per IEC 60529. These values are directory references and must be verified for the specific model and application with the legal manufacturer or supplier.
Working Principle
The trolley moves along overhead tracks using wheels or rollers, typically powered by chain drives, friction drives, or manual pushing. It maintains stability through its wheel configuration and connection to the conveyor system, allowing it to carry suspended loads while following the track path. The wheels are designed to match the track profile, and the load is suspended from the trolley frame via hooks or other attachments. The trolley's movement is guided by the track, and its speed is controlled by the drive system or manual operation. Proper wheel alignment and bearing condition are essential for smooth operation and to minimize rolling resistance. The trolley's load capacity and speed must be within the specified ranges to ensure safe and efficient material handling.
Common Materials
Steel, Cast Iron, Polymer Bearings
Technical Parameters
ParameterTypical rangeNotes & selection driver
Rated Load Capacity500–2000 kgMaximum suspended load per trolley
Track Width100–300 mmMust match overhead conveyor rail
Wheel Diameter80–200 mmAffects rolling resistance and load distribution
Max Travel Speed0.5–2.0 m/sHigher speeds may require damping
Operating Temperature-20–80 °COutside range may affect wheel and bearing life
Material GradeQ235BCarbon steel for frame; optional stainlessGB/T 700
Overall Dimensions (L×W×H)400×200×300–800×400×600 mmEnvelope for clearance along track
Net Weight15–60 kgAffects conveyor drive sizing
Wheel HardnessHRC 40–50Ensures wear resistance on rail
Max Operating Humidity95 % RHNon-condensing; higher may require sealed bearings
IP RatingIP54–IP65For electrical components if equippedIEC 60529

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
  • Wheel Assembly
    Provides rolling motion along the track
    Material: Steel with polymer bearings
  • Frame/Body Part
    Structural support and load attachment point
    Material: Steel
  • Attachment Hook Part
    Connection point for suspended loads
    Material: Forged Steel
  • Bearing System
    Reduces friction for smooth movement
    Material: Polymer or Steel Bearings

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
temperature: -20°C to 120°C
travel speed: 0.1 to 2.0 m/s
load capacity: Up to 5000 kg per trolley
track compatibility: Standard I-beam sizes 100-300 mm
Media Compatibility
✓ General manufacturing loads ✓ Automotive assembly components ✓ Warehouse storage systems
Unsuitable: Corrosive chemical environments without protective coating
Sizing Data Required
  • Maximum load weight (kg)
  • Conveyor track specifications (beam size/profile)
  • Required travel speed and duty cycle

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wheel bearing seizure
Cause: Inadequate lubrication leading to metal-on-metal contact and overheating
Structural fatigue cracking
Cause: Cyclic loading from repeated starts/stops and load variations exceeding design limits
Maintenance Indicators
  • Grinding or screeching noises during movement indicating bearing failure
  • Visible misalignment or wobbling of trolley wheels during operation
Engineering Tips
  • Implement precision alignment procedures during installation and periodic checks to prevent uneven load distribution
  • Establish a proactive lubrication schedule using manufacturer-recommended greases with proper application quantities

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI MH14.1-2020 Industrial Wheels and Casters CE Marking (Machinery Directive 2006/42/EC)

Quoted from the published standard.

Manufacturing Precision
  • Wheel Bore Diameter: +/-0.05mm
  • Frame Squareness: 2mm per meter
Quality Inspection
  • Load Capacity Test (Static and Dynamic)
  • Non-Destructive Testing (Visual and Magnetic Particle)

Manufacturers of Carrier Trolley

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Frequently Asked Questions

What is the rated load capacity of a carrier trolley?

The rated load capacity is typically between 500 and 2000 kg, but the exact value depends on the specific model and application. Always verify with the manufacturer.

How do I select the correct track width for a carrier trolley?

The track width must match the overhead conveyor rail, typically 100 to 300 mm. Measure the rail and ensure the trolley's wheel spacing is compatible.

What materials are used in carrier trolleys?

Common materials include steel and cast iron for the frame, and polymer bearings for wheels. The frame material grade is often Q235B carbon steel per GB/T 700, but confirm with the supplier.

What is the maximum operating temperature for a carrier trolley?

The operating temperature range is -20°C to 80°C. Outside this range, wheel and bearing life may be affected. Verify suitability for your environment.

Data Basis

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

Preliminary Technical Classification
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