Editorial Technical Reference

Rotary Table

This page explains how Rotary Table 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 precision rotating platform that enables multi-axis measurement of complex parts by providing controlled rotational motion.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Rotary Table

Definition
A rotary table is a critical component of a Precision Industrial Coordinate Measuring Machine (CMM) that provides a fourth rotational axis (typically around the Z-axis). It allows the CMM probe to access multiple sides and angles of a workpiece without manual repositioning, enabling complete 3D measurement of complex geometries, cylindrical features, and contoured surfaces with high accuracy and repeatability. The table is typically mounted on the CMM base or integrated into the machine structure, and it consists of a precision bearing assembly and a servo-controlled motor. The motor rotates the table platform to precise angular positions based on commands from the CMM controller. An encoder provides closed-loop feedback on the angular position, ensuring high positional accuracy. The workpiece is securely fixtured to the table, and as it rotates, the CMM's touch-trigger or scanning probe measures features from different orientations, with all coordinate data transformed into a common reference frame by the measurement software. The rotary table is available in various configurations to suit different workpiece sizes and load capacities. Key parameters include table diameter (200–2000 mm), maximum load capacity (100–5000 kg), positioning accuracy (±0.005–±0.02 degrees per ISO 230-7), repeatability (±0.002–±0.01 degrees per ISO 230-7), maximum rotation speed (10–60 rpm), drive motor power (0.5–7.5 kW), operating voltage (220–480 V AC per IEC 60038), operating temperature (-10 to 50 °C), protection class (IP54–IP65 per IEC 60529), table material (HT250–QT500 per GB/T 9439), and net weight (150–3500 kg). Materials used include granite or polymer composite for the base, stainless steel or ceramic for bearing raceways, and aluminum alloy or cast iron for the table platform. These specifications are reference ranges; verify model-specific values and standards with the legal manufacturer or supplier before procurement or use.
Working Principle
The rotary table is mounted on the CMM base or integrated into the machine structure. It consists of a precision bearing assembly and a servo-controlled motor. The motor rotates the table platform to precise angular positions based on commands from the CMM controller. An encoder provides closed-loop feedback on the angular position, ensuring high positional accuracy. The workpiece is securely fixtured to the table, and as it rotates, the CMM's touch-trigger or scanning probe measures features from different orientations, with all coordinate data transformed into a common reference frame by the measurement software.
Common Materials
Granite or Polymer Composite (base), Stainless Steel or Ceramic (bearing raceways), Aluminum Alloy or Cast Iron (table platform)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Table Diameter200–2000 mmSelect based on workpiece size
Max Load Capacity100–5000 kgExceeding may cause deformation
Positioning Accuracy±0.005–±0.02 degHigher accuracy for precision machiningISO 230-7
Repeatability±0.002–±0.01 degCritical for batch productionISO 230-7
Max Rotation Speed10–60 rpmHigher speed reduces torque
Drive Motor Power0.5–7.5 kWMatch with load and speed
Operating Voltage220–480 V ACThree-phase, 50/60 HzIEC 60038
Operating Temperature-10–50 °COutside range may affect accuracy
Protection ClassIP54–IP65Higher IP for harsh environmentsIEC 60529
Table MaterialHT250–QT500Ductile iron for higher strengthGB/T 9439
Net Weight150–3500 kgConsider floor loading

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
  • Precision Bearing Assembly
    Provides smooth, low-friction rotation with minimal axial and radial runout, ensuring high positional accuracy and stiffness.
    Material: Stainless Steel, Ceramic Balls
  • Servo Motor and Drive System
    Generates controlled torque to rotate the table to precise angular positions as commanded by the CNC/controller.
    Material: Rare-earth Magnets, Copper Windings
  • High-Resolution Encoder
    Measures the exact angular position of the table and provides real-time feedback to the control system for closed-loop positioning.
    Material: Glass Scale, Photodetectors
  • Table Platform (Platen) Part
    The flat, machined surface to which workpieces or fixtures are mounted. Contains mounting features like T-slots or threaded holes.
    Material: Aluminum Alloy, Cast Iron, Granite

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
pressure: Atmospheric (non-pressurized)
other spec: Max load capacity: 50-500 kg (model dependent), Rotation accuracy: ±0.001° to ±0.0001°, Max speed: 0.1-10 RPM
temperature: -10°C to +50°C
Media Compatibility
✓ Clean room environments ✓ Metrology labs with vibration isolation ✓ CNC machining centers with controlled atmospheres
Unsuitable: High-particulate manufacturing environments (e.g., foundries, grinding operations)
Sizing Data Required
  • Maximum part weight and dimensions
  • Required angular positioning accuracy
  • Mounting interface requirements (e.g., flange type, bolt pattern)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing fatigue and seizure
Cause: Inadequate lubrication, contamination ingress (dust, moisture), or excessive axial/radial loads leading to overheating and premature wear.
Gear tooth wear or pitting
Cause: Misalignment during installation, shock loads, or improper meshing causing surface degradation and eventual tooth failure.
Maintenance Indicators
  • Unusual grinding or knocking noises during rotation, indicating bearing or gear damage.
  • Excessive vibration or wobble during operation, suggesting imbalance, misalignment, or structural looseness.
Engineering Tips
  • Implement a strict lubrication schedule using manufacturer-recommended grease/oil, and ensure seals are intact to prevent contamination.
  • Conduct regular alignment checks and torque verification on fasteners to maintain precision and reduce uneven load distribution.

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
ISO 230-2:2014 (Test code for machine tools - Determination of accuracy and repeatability of positioning of numerically controlled axes) ANSI B5.54-2005 (Methods for Performance Evaluation of Computer Numerically Controlled Machining Centers) DIN 55027 (Rotary tables for machine tools; acceptance conditions)

Quoted from the published standard.

Manufacturing Precision
  • Radial runout: ≤0.01 mm
  • Axial runout: ≤0.005 mm
Quality Inspection
  • Laser interferometer positioning accuracy test
  • Ball bar test for circular interpolation accuracy

Manufacturers of Rotary Table

9 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.

Dongying Lake Petroleum Technology CO., Ltd
Shandong, CN
ISO GOST
Listed on the company's own website · profile compiled by CNFX from public sources
Hebei Kingwell Machinery Co., Ltd.
Hebei, CN
API ISO GOST
Listed on the company's own website · profile compiled by CNFX from public sources
Beijing JY Instrument Co., Ltd.
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
GIGAGER
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
JX Shot Blasting Machine Co., Ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Leaderdrive
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Luoyang Monton Bearing Science & Technology Co., Ltd.
Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
SilverCNC
Beijing, CN
Also makes: Clamping System
Listed on the company's own website · profile compiled by CNFX from public sources
Sovonex
Tianjin, CN
Listed on the company's own website · profile compiled by CNFX from public sources

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

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.

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Frequently Asked Questions

What is the primary function of a rotary table in a CMM?

It provides a controlled rotational axis, typically around the Z-axis, allowing the CMM probe to access multiple sides of a workpiece without manual repositioning, enabling complete 3D measurement of complex geometries.

What are the typical materials used in a rotary table?

Common materials include granite or polymer composite for the base, stainless steel or ceramic for bearing raceways, and aluminum alloy or cast iron for the table platform. Specific material grades should be confirmed with the manufacturer.

How is positioning accuracy specified?

Positioning accuracy is typically specified in degrees, with reference ranges such as ±0.005 to ±0.02 degrees, tested according to ISO 230-7. Actual values depend on the specific model and must be verified with the supplier.

What factors affect the selection of a rotary table?

Key selection factors include workpiece size and weight, required positioning accuracy and repeatability, rotation speed, drive motor power, operating voltage, environmental conditions (temperature, protection class), and table material. Always verify these parameters with the manufacturer for your application.

Data Basis

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

Preliminary Technical Classification
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