Structural Frame (Gantry) for XY Motion Systems

Product Specifications

Technical details and manufacturing context for Structural Frame (Gantry)

Definition

The structural frame, commonly referred to as the gantry, is the foundational component of an XY motion system. It provides the rigid, stable platform upon which the X-axis and Y-axis linear motion components (such as rails, carriages, and drives) are mounted. Its primary role is to maintain precise geometric alignment and resist deflection under operational loads, ensuring the overall accuracy and repeatability of the system's positioning. The frame is designed with a high stiffness-to-weight ratio to minimize deformation from the combined weight of mounted components (motors, carriages, end-effectors) and dynamic forces generated during acceleration and deceleration. Its geometry and material properties determine the system's resonant frequencies and its ability to dampen vibrations, directly impacting positioning stability. Typical materials include aluminum alloy (e.g., 6061-T6), steel (e.g., A36 or stainless steel), and carbon fiber composite. Key parameters to verify for a specific application include frame width (800–2000 mm), frame height (500–1500 mm), load capacity (500–5000 kg), positioning accuracy (±0.02–±0.05 mm per ISO 230-2), repeatability (±0.01–±0.02 mm per ISO 230-2), straightness (0.02–0.05 mm/m per ISO 230-1), operating temperature (0–50 °C), ingress protection (IP54–IP65 per IEC 60529), material grade (Q235–Q345 per GB/T 700), and frame weight (500–3000 kg). These values are reference ranges; the actual model must be confirmed with the manufacturer. The frame's performance is critical for precision machining, and its selection depends on the required travel, load, and accuracy. Verification questions include checking the frame's flatness, parallelism, and rigidity under load. Maintenance signals include visible cracks, excessive vibration, or loss of positioning accuracy. Failure boundaries are exceeded when deflection or thermal expansion causes the system to fall out of specified tolerances. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The frame functions as a static, load-bearing structure. It is designed with high stiffness-to-weight ratio to minimize deformation from the combined weight of mounted components (motors, carriages, end-effectors) and dynamic forces generated during acceleration/deceleration. Its geometry and material properties determine the system's resonant frequencies and its ability to dampen vibrations, directly impacting positioning stability.

Common Materials

Aluminum Alloy (e.g., 6061-T6), Steel (e.g., A36 or Stainless Steel), Carbon Fiber Composite

Technical Parameters

Parameter	Typical range	Notes & selection driver
Frame Width	800–2000 mm	Determines the maximum X-axis travel.
Frame Height	500–1500 mm	Affects Z-axis clearance and stiffness.
Load Capacity	500–5000 kg	Maximum static load on the gantry.
Positioning Accuracy	±0.02–±0.05 mm	Critical for precision machining.ISO 230-2
Repeatability	±0.01–±0.02 mm	Ensures consistent positioning over cycles.ISO 230-2
Straightness	0.02–0.05 mm/m	Affects motion quality along the axis.ISO 230-1
Operating Temperature	0–50 °C	Outside this range, thermal expansion affects accuracy.
Ingress Protection	IP54–IP65	Protects against dust and water jets.IEC 60529
Material Grade	Q235–Q345	Higher grade for higher strength and stiffness.GB/T 700
Frame Weight	500–3000 kg	Affects foundation requirements and shipping cost.

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

Base Beam / Bed Part
Forms the stationary foundation, typically supporting the X-axis linear guides.

Material: steel or aluminum
Vertical Columns / Legs Part
Provide vertical support for the cross-beam, transferring loads to the base.

Material: steel or aluminum
Cross-Beam / Bridge
The horizontal member that moves along the X-axis, carrying the Y-axis motion components and end-effector.

Material: aluminum or carbon fiber composite
Reinforcement Ribs / Gussets Part
Internal or external structural elements added to increase stiffness and reduce deflection at critical joints.

Material: same as main frame material

Applied To / Applications

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

XY Motion System

View system integration details

Manufacturers of Structural Frame (Gantry)

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Frequently Asked Questions

What materials are commonly used for the gantry frame?

Common materials include aluminum alloy (e.g., 6061-T6), steel (e.g., A36 or stainless steel), and carbon fiber composite. The choice affects stiffness, weight, and damping.

How do I verify the positioning accuracy of the frame?

Positioning accuracy is specified as ±0.02–±0.05 mm per ISO 230-2. You must confirm the actual value for your specific model with the manufacturer, as it depends on the frame's geometry and assembly.

What is the load capacity range for such frames?

The load capacity is typically 500–5000 kg, but this is a reference range. The actual capacity depends on the frame's design and materials; always check the manufacturer's specifications.

What standards apply to the frame's straightness and repeatability?

Straightness is referenced to ISO 230-1 (0.02–0.05 mm/m), and repeatability to ISO 230-2 (±0.01–±0.02 mm). These standards are for verification; compliance must be confirmed with the supplier.

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: 5000 N, Max static load: 7500 N, Vibration tolerance: ≤5 g RMS, Deflection limit: ≤0.1 mm/m under max load
temperature:	-20°C to +80°C (operational), -40°C to +100°C (storage)

Structural Frame (Gantry)

Product Specifications

Applied To / Applications

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