Editorial Technical Reference

Rotating Worktable

This page explains how Rotating Worktable 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 holds and positions workpieces during machining operations on a CNC vertical lathe.

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

Product Specifications

Technical details and manufacturing context for Rotating Worktable

Definition
The rotating worktable is a critical component of a CNC vertical lathe that provides controlled rotational motion to workpieces during machining processes. It serves as the mounting surface for fixtures, chucks, or direct workpiece clamping, enabling precise angular positioning and continuous rotation for operations like turning, facing, boring, and threading on vertical-axis machines. The worktable is typically made of cast iron or steel alloy, with table diameters ranging from 400 to 2000 mm and maximum load capacities from 500 to 20,000 kg, depending on the model. Positioning accuracy is specified as ±0.005 to ±0.02 mm, and repeatability as ±0.002 to ±0.01 mm, both per ISO 230-2. Maximum rotational speed ranges from 10 to 100 rpm, and drive motor power from 2.2 to 15 kW. The operating voltage is 380 V AC ±10% (three-phase, 50/60 Hz) per IEC 60038, and the operating temperature range is 0 to 45 °C. Protection class is IP54 to IP65 per IEC 60529. Table material grades include HT250 to QT500 per GB/T 9439. Net weight ranges from 500 to 8000 kg. These values are reference ranges; actual specifications must be confirmed with the manufacturer for the specific model. The worktable is designed for use in CNC vertical lathes and must be selected based on workpiece size, weight, and required machining accuracy. Proper installation, alignment, and maintenance are essential to achieve the stated performance. Regular checks for runout, bearing wear, and lubrication are recommended. Failure to operate within specified limits may lead to deflection, reduced accuracy, or mechanical damage. Always verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The worktable rotates via a direct drive or gear-driven spindle mechanism powered by an electric motor. It receives positioning commands from the CNC controller, which coordinates rotation speed, direction, and angular position with other machine axes. Precision bearings support the table to maintain rigidity and minimize runout during high-speed rotation under cutting loads. The motor power and gear ratio determine the torque and speed range. The controller uses feedback from encoders or resolvers to achieve the specified positioning accuracy and repeatability. The table's clamping mechanism secures the workpiece or fixture, and the entire assembly is designed to withstand cutting forces while maintaining stability.
Common Materials
Cast iron, Steel alloy
Technical Parameters
ParameterTypical rangeNotes & selection driver
Table Diameter400–2000 mmDetermines max workpiece size
Max Load Capacity500–20000 kgExceeding may cause deflection
Positioning Accuracy±0.005–±0.02 mmCritical for machining toleranceISO 230-2
Repeatability±0.002–±0.01 mmAffects consistency of partsISO 230-2
Max Rotational Speed10–100 rpmHigher speeds may reduce accuracy
Drive Motor Power2.2–15 kWSized for load and torque
Operating Voltage380 ±10% V ACThree-phase, 50/60 HzIEC 60038
Operating Temperature0–45 °COutside range may affect lubrication
Protection ClassIP54–IP65Higher IP for coolant exposureIEC 60529
Table MaterialHT250–QT500Cast iron or ductile ironGB/T 9439
Net Weight500–8000 kgAffects installation and foundation

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
  • Table Surface Part
    Provides mounting interface for workpieces and fixtures with T-slots or mounting holes
    Material: Cast iron
  • Rotary Bearing Part
    Supports the table and enables smooth, precise rotation with minimal friction
    Material: Bearing steel
  • Drive Motor
    Provides rotational power to the table through direct drive or gear reduction
    Material: Electrical components with steel housing
  • Position Encoder
    Measures angular position and provides feedback to the CNC controller for closed-loop control
    Material: Electronic components with aluminum housing
  • Clamping Mechanism
    Holds the workpiece or fixture down against the cutting forces.

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 (sealed bearing environment)
other spec: Max workpiece weight: 500-5000 kg (model dependent), Rotation accuracy: ±0.001°, Max rotational speed: 0-30 RPM
temperature: 0°C to +45°C
Media Compatibility
✓ Steel alloys ✓ Aluminum alloys ✓ Titanium alloys
Unsuitable: High-corrosion environments (e.g., saltwater exposure without protective sealing)
Sizing Data Required
  • Maximum workpiece weight and dimensions
  • Required rotational accuracy and speed
  • CNC lathe model and mounting interface specifications

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing fatigue failure
Cause: Cyclic loading from rotational motion combined with inadequate lubrication leads to subsurface cracking and spalling in bearing races and rolling elements.
Gear tooth pitting and wear
Cause: High contact stress at gear mesh points, exacerbated by misalignment, insufficient lubrication, or contamination, causing surface fatigue and material removal.
Maintenance Indicators
  • Abnormal audible grinding or clicking noises during rotation, indicating bearing or gear damage
  • Excessive vibration or wobble during operation, suggesting imbalance, misalignment, or component wear
Engineering Tips
  • Implement precision laser alignment during installation and periodic checks to minimize misalignment-induced stresses on bearings and gears
  • Establish a proactive lubrication management program with scheduled oil analysis to monitor contamination, viscosity, and wear particle levels

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 230-1:2012 (Test code for machine tools - Geometric accuracy of machines operating under no-load or quasi-static conditions) ANSI B5.54-2005 (Methods for Performance Evaluation of Computer Numerically Controlled Machining Centers) DIN 55189-1 (Rotary tables for machine tools - Acceptance conditions and testing of accuracy)

Quoted from the published standard.

Manufacturing Precision
  • Radial runout: ≤0.01 mm
  • Axial runout: ≤0.005 mm
Quality Inspection
  • Runout measurement test (using dial indicators or laser interferometer)
  • Hardness test (Rockwell or Brinell scale for bearing surfaces)

Manufacturers of Rotating Worktable

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

Baichuang
Jiangsu, 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.

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Frequently Asked Questions

What are the typical table diameter and load capacity ranges?

According to the directory, table diameter ranges from 400 to 2000 mm, and maximum load capacity from 500 to 20,000 kg. These are reference ranges; the exact values depend on the specific model and must be confirmed with the manufacturer.

What positioning accuracy and repeatability can be expected?

Positioning accuracy is typically ±0.005 to ±0.02 mm, and repeatability ±0.002 to ±0.01 mm, both per ISO 230-2. Actual performance may vary with installation and operating conditions.

What are the electrical requirements?

The operating voltage is 380 V AC ±10% (three-phase, 50/60 Hz) per IEC 60038. The drive motor power ranges from 2.2 to 15 kW. Always verify with the manufacturer for the specific model.

How should the worktable be maintained?

Regular maintenance includes checking for runout, bearing wear, and proper lubrication. Operating within specified temperature (0–45 °C) and load limits is essential. Follow the manufacturer's maintenance schedule and guidelines.

Data Basis

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

Preliminary Technical Classification
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