Ø40x300 SK40 Test Mandrel 0.002mm Runout Accuracy, Hardened Gauge Steel DIN ISO 7388-1 - Metav IndustryLine

Take advantage of the combination of 0.002 mm runout accuracy, hardened gauge steel and standardised taper compliance to ensure reproducible spindle alignment and reliable runout checking; order directly via Metav Werkzeuge or contact the team for application advice.

Control mandrel SK40 (Ø40 x 300 mm) — 0.002 mm runout accuracy

The Control mandrel SK40 (Ø40 x 300 mm) is a hardened test mandrel designed for precise runout inspection and alignment of machine spindles with SK taper.

• Runout accuracy 0.002 mm
• Hardened gauge steel, HRC 58
• Complies with DIN ISO 7388-1
• Ideal for spindle alignment

Precision that keeps production on track

A runout tolerance of 0.002 mm makes this mandrel a reliable reference for fine balancing and concentricity checks, reducing rework and scrap in repeat manufacturing. The combination of tight roundness and cylindricity <0.003 mm provides a measurable basis for process decisions, so inspection intervals and corrective actions can be scheduled with confidence. When used as a reference in setup and verification procedures, the mandrel shortens machine downtime by enabling fast, reproducible checks on spindle condition and tool holding accuracy.

Built for industrial reliability and traceability

Constructed from hardened gauge steel and finished to HRC 58, the mandrel withstands workshop handling while maintaining dimensional stability. The SK40 taper is produced to match DIN ISO 7388-1, ensuring compatibility with standard SK spindles and fixtures. The solid construction and an overall dimension of Ø40 x 300 mm balance rigidity and accessibility for most medium-length shafts; the component’s mass (8 kg) further stabilises measurements during rotation. This rugged design supports a dependable inspection routine in production and maintenance departments.

Integrates into metrology and alignment workflows

Designed for runout testing and spindle alignment, the mandrel works with dial indicators, digital comparators and modern measuring systems as a stable reference member. The product’s traceable characteristics and conformity with common workshop standards make it suitable for use within quality-control plans or as a workshop reference gauge. As part of a broader calibration and quality strategy, the mandrel improves measurement repeatability and supports clear pass/fail criteria, contributing to efficient inspection processes and consistent product quality.

For precision-critical alignment tasks, contact Metav Werkzeuge to request supply of the Metav IndustryLine control mandrel (SKU M318.974) or tailored technical advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical data

• Article number: M318.974
• GTIN: 4054469184715
• Type: SK40-D40-300L
• Label: Control mandrel SK40, L = 300 mm, runout accuracy 0.002 mm
• Manufacturer: Metav IndustryLine

Facts

• Runout accuracy: 0.002 mm
• Cylindricity: <0.003 mm
• Diameter × length: Ø40 × 300 mm
• Hardness: HRC 58
• Weight: 8 kg

Special features

• Hardened gauge steel
• SK40 taper (DIN ISO 7388-1)
• Suitable for runout testing and spindle alignment
• Category: Gauges

FAQ

How accurate is the mandrel for runout checks?
The control mandrel SK40 delivers a runout accuracy of 0.002 mm, with cylindricity better than 0.003 mm, providing a stable reference for precise concentricity and runout measurements.

Which taper and standard does it follow?
Manufactured to match the SK40 taper, the mandrel complies with DIN ISO 7388-1, ensuring correct fit and interchangeability with standard SK spindles and holders.

What material and hardness are specified?
The mandrel is made from hardened gauge steel and tempered to HRC 58, offering a combination of wear resistance and dimensional stability for workshop use.

Is this mandrel suitable for spindle alignment tasks?
Yes, the control mandrel is designed specifically for runout testing and alignment of machine spindles and is commonly used as a workshop reference for setup checks.

Are there handling considerations due to its mass?
Weighing 8 kg, the mandrel provides stability during measurement but should be handled with appropriate lifting technique or equipment to avoid injury and prevent impact that could affect accuracy.

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