M-SDN200 Intelligent Internal Gear M-Value Measuring Instrument

Precision Measurement for Internal Gears and Gear Rings

The M-SDN200 Intelligent Internal Gear M-Value Measuring Instrument is a high-precision inspection system developed for measuring and evaluating the M-value of internal gears and internal gear rings. It is designed for applications requiring accurate internal-gear measurement, stable repeatability, digital result management and efficient inspection of different workpiece heights.

With a measurement range for internal gear top-circle diameters from 30 to 200 mm, the M-SDN200 combines a PLC-controlled measurement structure, touchscreen operation, high-resolution optical-scale feedback, automatic measurement-position adjustment and software-based data analysis. Its reverse-mounted probe design helps reduce measurement blind zones when inspecting internal gears with blind holes, stepped bores or different internal opening configurations.

Product positioning: An intelligent internal gear M-value measuring solution for precision gear-ring inspection, process control and digital quality management.

Key Features

Internal Gear and Gear-Ring Measurement

The M-SDN200 is designed specifically for high-precision M-value inspection of internal gears and internal gear rings. Its specified measurement range covers internal gear top-circle diameters from 30 to 200 mm, with an upper and lower measurement travel of 210 mm and a fine displacement travel of 10 mm.

Reverse-Mounted Probe Design

The measuring probe adopts a reverse-mounted configuration. This design helps improve accessibility inside internal gears and reduces measurement blind zones associated with blind-hole, stepped-hole and different-aperture internal gear structures. The final suitability of the probe arrangement should be confirmed according to the workpiece drawing and internal tooth geometry.

Automatic Measurement-Position Adjustment

The instrument can automatically calculate the required measurement travel and adjust the measurement position through the software. The platform can also automatically adjust its height according to the configured workpiece model, helping operators inspect workpieces with different heights and maintain consistent measurement conditions.

High-Resolution Optical-Scale Feedback

The M-SDN200 uses a high-precision enclosed optical scale for displacement detection and travel calibration. The specified measurement resolution and optical-scale resolution are both 0.0005 mm. The measurement system repeatability/linearity specification is ±1 μm according to the supplied technical agreement.

Repeatable Measurement Performance

The specified repeated measurement accuracy is 1.5 μm over 100 measurements, while the indicator variation is specified at no more than 0.5 μm. These specifications support repeatable internal gear inspection, process monitoring and comparison of production batches.

PLC and Touchscreen Control

The measurement unit is controlled by a PLC system and operated through an industrial touchscreen. Operators can enter workpiece parameters, set the measurement process, control automatic positioning and view measurement results in real time through a practical digital interface.

Intelligent Data Evaluation and Grouping

The software allows users to enter the basic parameters of the measured part and evaluate measurement errors according to a selected accuracy grade or freely defined tolerance values. Measurement results can be statistically analyzed, digitally recorded and grouped according to accuracy or tolerance criteria for efficient batch classification.

Production-Line and MES Integration

The M-SDN200 can be configured for production-line operation. Measurement results can be collected and analyzed as part of a digital quality-management workflow. An industrial scanner function and MES-related data integration can be evaluated and confirmed according to the specific production project.

Technical Specifications

Technical note: The specifications above are based on the supplied M-SDN200 technical agreement. Final equipment configuration, workpiece suitability, acceptance criteria, optional functions and interface requirements shall be confirmed in the signed technical documentation and purchase order.

Instrument Structure and Control System

The M-SDN200 uses a PLC-controlled measurement-unit layout. The touchscreen provides workpiece-parameter input, measurement-process control, automatic positioning and result display, allowing operators to complete routine inspection through a clear digital interface.

The travel system uses a full-digital AC servo unit and a precision motion-control structure. A computer-based control system and motion-control card manage the travel movement, while the high-precision optical scale performs displacement detection and travel calibration. The software can automatically calculate the required measurement travel and adjust the measurement position according to the workpiece configuration.

The system supports accuracy-grade evaluation and freely defined tolerance evaluation. Measurement results can be statistically analyzed and classified through data-grouping functions, helping users make faster quality decisions during production inspection.

Measurement and Data Workflow

The M-SDN200 supports a complete digital inspection workflow from workpiece identification and parameter setup to automatic positioning, measurement, evaluation and result classification. The operator can input the part number, scan a barcode when the optional scanning function is configured, enter the workpiece parameters, select an accuracy grade or define tolerance values, and then start the measurement process.

The system can calculate the measurement travel and adjust the measurement position automatically according to the workpiece configuration. After measurement, the result can be displayed on the touchscreen, recorded digitally and included in statistical analysis or grouping. This process helps reduce manual recording, improve inspection consistency and support traceability of internal gear measurement results.

For production-line use, the instrument can be configured according to the workpiece loading method, data-transfer workflow and factory information-system requirements. MES connectivity, barcode scanning and other digital functions should be confirmed during the technical proposal stage.

Accuracy and Motion Performance

The technical agreement specifies workpiece slide-carriage motion straightness of 10 arcsec over the full travel in both the vertical and horizontal directions. The measuring force can be adjusted through a micro-motion motor, allowing the inspection condition to be adapted to the workpiece and measurement requirement.

The combination of an enclosed optical scale, precision linear guideways, servo-driven positioning, a crossed-roller displacement stage and a free workpiece slide table provides a stable mechanical basis for internal gear M-value inspection. The reverse-mounted probe arrangement is intended to improve access to internal tooth areas that may otherwise be difficult to reach.

Typical Applications

The M-SDN200 can be used by internal gear and gear-ring manufacturers, industrial transmission manufacturers, automotive and motorcycle component suppliers, precision machining companies, quality-inspection laboratories and production-line inspection departments.

Typical applications include incoming inspection, in-process inspection, final inspection, process monitoring, accuracy-based batch classification and digital recording of internal gear M-value measurements. The instrument is particularly suitable for internal gears with blind-hole features, stepped bores, different internal openings or workpiece heights that require flexible probe access and automatic positioning.

For special internal tooth geometries, unusual workpiece structures or customized production-line requirements, the measurement scope and probe configuration should be evaluated against the workpiece drawing and technical acceptance criteria.

Installation Requirements

The M-SDN200 requires a stable installation foundation and an appropriate industrial operating environment. The installation plan should take into account the instrument dimensions, approximately 300 kg net weight, workpiece loading method, floor space, power connection and access for commissioning and maintenance.

Before installation, the customer should confirm the available floor space, floor-bearing capacity, power connection, operating environment, workpiece loading arrangement and any requirements for production-line or MES integration.

Warranty and After-Sales Service

The complete instrument is covered by a one-year warranty, excluding damage caused by improper operation or other conditions outside the agreed warranty scope. After the warranty period, lifelong technical service is provided to support continued operation and maintenance of the equipment.

Installation support, operator training, software functions, production-line integration, MES communication, acceptance testing and service-response requirements can be confirmed in the commercial and technical agreement before order placement.

Why Choose the M-SDN200?

The M-SDN200 is designed around the specific challenges of internal gear inspection. Its 30–200 mm internal gear measurement range, reverse-mounted probe design, automatic measurement-position adjustment, fine displacement travel and high-resolution optical-scale feedback provide a practical foundation for accurate and repeatable internal gear M-value measurement.

The instrument can be used as an independent inspection system or configured for workpiece identification, barcode scanning, result grouping and production-line data management. This flexibility allows manufacturers to improve internal gear inspection efficiency while preparing for more connected and traceable quality-control processes.

Request a Technical Proposal

When requesting a quotation or technical proposal, please provide the internal gear drawing, top-circle diameter, tooth width or workpiece height, internal bore structure, measurement position, required accuracy, inspection frequency, workpiece identification method, production-line requirements, MES interface requirements and preferred quality-document format.

For internal gears with blind holes, stepped bores, different apertures or special tooth-access conditions, please provide the relevant cross-sectional drawing and photographs where available. The final probe arrangement, measurement range, fixture method, optional functions and acceptance criteria will be confirmed according to the actual workpiece and signed technical documents.

Contact us for the M-SDN200 Intelligent Internal Gear M-Value Measuring Instrument and customized internal gear inspection solutions.