400mm Setting Ring Hardened Gauge Steel Form C, DIN 2250 / DIN 286 JS4 - Metav IndustryLine

High-repeatability reference for internal-diameter setting: the combination of hardened, lapped gauge steel, Form C geometry and compliance with DIN 2250 / DIN 286, JS4 delivers a stable master for workshop and production control; order the ring directly via Metav Werkzeuge or consult our specialists for application advice.

Setting ring 400 mm — ring gauge (Form C) by Metav IndustryLine

The Setting ring 400 mm is a Form C ring gauge designed as a reference master for setting and checking internal-diameter instruments in production and inspection environments.

• Form C geometry for straightforward use and mounting
• Hardened and lapped gauge steel for long-term stability
• Conforms to DIN 2250 / DIN 286, JS4 tolerances
• Nominal diameter 400 mm for medium-large bores

Accuracy and repeatability for process control

The ring serves as a reliable reference standard when repeatable internal-diameter settings are required on the shop floor. Manufactured from hardened, lapped gauge steel, the component offers dimensional stability and wear resistance that preserve calibration over time. Compliance with DIN 2250 and DIN 286 and the JS4 tolerance class ensures interchangeability with other standards-based gauges and enables consistent measurement chains. The nominal 400 mm diameter, combined with the ring’s mass and geometry, reduces deflection during handling and contributes to reproducible results, supporting faster setup times and fewer reworks in serial production.

Practical benefits in calibration and routine use

The Form C design simplifies engagement with bore gauges, setting masters and internal micrometers, turning a complex alignment step into a controlled procedure. The lapped contact surfaces provide a low-friction reference zone, which reduces measurement scatter and prolongs service life relative to untreated rings. As a workshop master, the item functions both as a calibration artefact and as a daily-setting tool, lowering machine downtime by enabling rapid, verifiable adjustments. Traceable markings and the robust construction reduce the frequency of maintenance cycles, making the ring a pragmatic investment for quality assurance routines.

Handling, traceability and supply assurance

With a mass of 33.5 kg, the ring offers inherent stability; however, safe handling procedures and appropriate lifting aids are recommended for transport and installation. The piece is supplied as a precision metrology instrument: material and finish are optimised for dimensional endurance and minimal surface change over repeated use. Procurement through Metav IndustryLine connects the user to a European quality filter and logistics hub in Emmerich, where stock and distribution support are combined with sector knowledge. This means access to a broad range of measurement solutions and the reassurance of supplier continuity for production-critical tooling.

Contact Metav Werkzeuge today for detailed advice on Metav IndustryLine setting rings and to arrange supply from our Emmerich quality hub

Technical data

• Article number: M313.400
• GTIN: 4054469167213
• Weight: 33.5 kg
• Material: hardened and lapped gauge steel
• Diameter: 400 mm

Facts

• Nominal diameter: 400 mm
• Mass: 33.5 kg
• Customs tariff number: 90173000
• SKU: M313.400

Special features

• Form C geometry
• Conforms to DIN 2250 and DIN 286, JS4
• Lapped contact surfaces for low wear
• Suitable as a workshop reference master

FAQ

What is the intended use of this ring gauge?
The ring gauge is intended as a reference master for setting and checking internal-diameter instruments and for routine verification in workshop and production environments; the 400 mm nominal size suits medium-large bores.

How does the material treatment affect performance?
Hardened and lapped gauge steel provides high wear resistance and a stable surface finish, so the ring maintains dimensional integrity and extends the interval between rework and recalibration.

What tolerances does the ring meet?
The component is manufactured to DIN 2250 and DIN 286 with a JS4 tolerance class, ensuring compatibility with standardised measurement systems and predictable interchangeability.

Is this ring suitable for regular shop-floor use?
Yes; the robust construction and lapped contact surfaces are designed for daily use as a setting master, though appropriate handling and lifting aids are advised given the mass.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com