End Carriages for Gantry Structures | Components

Product Specifications

Technical details and manufacturing context for End Carriages

Definition

End carriages are critical structural components positioned at both ends of a gantry structure, typically consisting of wheels, axles, bearings, and mounting frames. They provide support for the gantry bridge or main beam, enable smooth horizontal movement along rails or tracks, and distribute the load from the gantry to the ground or supporting structure. In gantry cranes and similar equipment, they facilitate precise positioning and stability during operation. These components are manufactured from structural steel or alloy steel, with material grades commonly specified as Q235B to Q355B, depending on load and environmental requirements. Key parameters include rated load capacity (5–50 t), span (10–35 m), wheel diameter (250–800 mm), rail base width (50–150 mm), wheel load (50–250 kN), max travel speed (20–80 m/min), positioning accuracy (±2–±5 mm), motor power (1.5–15 kW per drive unit), supply voltage (380–690 V AC), operating temperature (-20°C to 50°C), ingress protection (IP54–IP65), and total weight (1–10 t per end carriage). These values are reference ranges and must be confirmed for the specific model and application. Standards such as ISO 4301-1, ISO 8686-5, DIN 536, ISO 22986, IEC 60034-1, IEC 60038, IEC 60068-2-1/2, IEC 60529, GB/T 700, and GB/T 1591 are referenced for design, testing, and verification. End carriages are selected based on load, span, travel speed, and environmental conditions. They interface with rails, gantry structure, drive systems, and control systems. Verification questions include checking load capacity, wheel load, and compliance with relevant standards. Maintenance signals include unusual noise, vibration, or wear on wheels and bearings. Failure boundaries include exceeding rated load, misalignment, or operation outside temperature limits.

Working Principle

End carriages operate by transferring vertical loads from the gantry bridge to wheels or rollers that move along fixed rails or tracks. They incorporate bearings to reduce friction during movement and may include drive mechanisms (motors, gearboxes) or braking systems for controlled motion. Their design ensures alignment and stability, preventing lateral sway and maintaining the gantry's structural integrity during travel. The wheels are sized to distribute loads and reduce bearing stress, while the rail base width must match the rail profile for proper load distribution. Drive motors provide propulsion, and braking systems enable controlled stops. Positioning accuracy is achieved through precise control of motor speed and braking. The entire assembly is designed to operate within specified temperature and environmental conditions, with ingress protection ratings suitable for the application.

Common Materials

Structural steel, Alloy steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Load Capacity	5–50 t	Maximum load per end carriage; higher loads require reinforced design.ISO 4301-1
Span	10–35 m	Distance between rail centers; affects structural rigidity.
Wheel Diameter	250–800 mm	Larger wheels reduce bearing stress and improve travel smoothness.ISO 8686-5
Rail Base Width	50–150 mm	Must match rail profile for proper load distribution.DIN 536
Wheel Load	50–250 kN	Maximum force per wheel; critical for rail and foundation design.ISO 8686-5
Max Travel Speed	20–80 m/min	Higher speeds require more powerful motors and braking systems.ISO 22986
Positioning Accuracy	±2–±5 mm	Tolerance for stopping at target positions; affects automation repeatability.
Motor Power	1.5–15 kW	Per drive unit; depends on load and travel speed.IEC 60034-1
Supply Voltage	380–690 V AC	Typical three-phase industrial supply; other voltages available.IEC 60038
Operating Temperature	-20–50 °C	Below -20°C requires low-temperature steel and lubricants.IEC 60068-2-1/2
Ingress Protection	IP54–IP65	IP65 for dusty or washdown environments.IEC 60529
Material Grade	Q235B–Q355B	Higher grade for heavier loads and lower temperatures.GB/T 700, GB/T 1591
Total Weight	1–10 t	Per end carriage; affects shipping and installation 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

Wheels Part
Provide rolling contact with rails or tracks to enable movement and support vertical loads.

Material: Forged steel or alloy steel
Axles Part
Shafts that mount the wheels and transmit loads to the carriage frame, often with bearings for rotation.

Material: Carbon steel or alloy steel
Carriage Frame Part
Structural framework that holds wheels, axles, and attachments, connecting to the gantry bridge.

Material: Structural steel
Drive Motors
Propel the carriage along the runway rails.
Braking Systems
Stop and hold the carriage at position.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for End Carriages.

Applied To / Applications

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

Gantry Structure

View system integration details

Manufacturers of End Carriages

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

DGCRANE

Henan, CN

Also makes: Power Feed System, Jib Crane, Ship-to-Shore Crane and 9 more

Listed on the company's own website · profile compiled by CNFX from public sources

View profile Send enquiry

Henan Yuantai Crane Machinery Import&Export Co., Ltd.

Henan, CN

Also makes: Jib Crane, Overhead Crane, Gantry Crane and 4 more

Listed on the company's own website · profile compiled by CNFX from public sources

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What are end carriages used for?

End carriages are used in gantry structures, such as gantry cranes, to support the bridge or main beam and enable horizontal movement along rails. They distribute loads to the ground and ensure stability during operation.

What materials are end carriages made of?

End carriages are typically made of structural steel or alloy steel, with material grades such as Q235B to Q355B, depending on load and environmental requirements.

What parameters should be considered when selecting end carriages?

Key parameters include rated load capacity, span, wheel diameter, rail base width, wheel load, max travel speed, positioning accuracy, motor power, supply voltage, operating temperature, ingress protection, and total weight. These must be matched to the application and verified with the manufacturer.

What standards apply to end carriages?

Relevant standards include ISO 4301-1 for load capacity, ISO 8686-5 for wheel load and design, DIN 536 for rail profiles, ISO 22986 for travel speed, IEC 60034-1 for motors, IEC 60038 for voltage, IEC 60068-2-1/2 for temperature, IEC 60529 for ingress protection, and GB/T 700 and GB/T 1591 for material grades. Always verify compliance with the manufacturer.

Data Basis

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

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for End Carriages

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	N/A (structural component, not pressure vessel)
other spec:	Max dynamic load: 50-500 kN, Max speed: 0.5-3.0 m/s, IP rating: IP54-IP66
temperature:	-20°C to +80°C (standard), -40°C to +120°C (specialized)

End Carriages

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards