Schneeberger NORMA

$300,000 - $500,000 Updated 2026-03-16

Key Specifications

Spindle Power

Up to 15 kW (20 HP)

Accuracy

±2 µm linear axes

grinding axes

5-axis simultaneous (X, Y, Z linear + A, C rotary)

max insert size

IC 50 mm (2.0 in) typical; configuration-dependent

grinding wheel diameter

Up to 250 mm (9.8 in)

grinding spindle speed

Up to 10,000 RPM

Overview

The Schneeberger NORMA is a CNC tool grinding machine built specifically for the precision grinding of indexable inserts, form tools, and cutting tool components requiring tight geometric accuracy on complex 3D profiles. Schneeberger's core competency is precision tool grinding — the NORMA represents the company's engineering applied to insert grinding and form tool production where profile accuracy, repeatability, and surface finish directly determine cutting tool performance.

The NORMA uses a 5-axis simultaneous grinding architecture (three linear axes plus two rotary axes) to position the grinding wheel relative to the workpiece for complex 3D surface grinding. Indexable insert grinding demands this multi-axis capability: insert faces, relief angles, rake faces, and edge chamfers are all ground in a single clamping, with the CNC coordinating all five axes simultaneously to maintain the correct relationship between wheel and workpiece at every point of the grinding path.

The machine's structural design emphasizes rigidity and thermal stability. The cast iron or polymer composite base, depending on configuration, provides the damping and thermal mass that insert grinding demands — surface finish requirements on cutting edges are typically Ra 0.1 µm or better, and achieving this consistently requires minimizing vibration and thermal drift. Linear motor options on some axes provide faster positioning with no backlash or mechanical compliance.

Schneeberger's CIMCO-based software suite (or proprietary equivalent) handles the programming complexity of multi-axis insert grinding. The software includes libraries for standard insert geometries (ISO/ANSI insert types), toolpath generation for user-defined profiles, and simulation to verify collision-free operation before grinding. This software capability is critical: manually programming 5-axis insert grinding cycles would be impractical without dedicated grinding software.

Workholding for insert grinding uses precision collets or hydraulic expanding mandrels for bore-clamped inserts, and dedicated fixture systems for peripherally ground inserts. The NORMA's workholding accuracy directly determines the insert's dimensional consistency — seat accuracy of a few microns is the norm.

Pricing for the Schneeberger NORMA falls in the $300,000-$500,000 range, positioned as a production-capable insert grinding machine for cutting tool manufacturers rather than a prototype or R&D machine.

Full Specifications

Parameter	Value
Grinding Axes	5-axis simultaneous (X, Y, Z linear + A, C rotary)
Max Insert Size	IC 50 mm (2.0 in) typical; configuration-dependent
Grinding Wheel Diameter	Up to 250 mm (9.8 in)
Grinding Spindle Speed	Up to 10,000 RPM
Spindle Motor Power	Up to 15 kW (20 HP)
Linear Axis Resolution	0.1 µm
Rotary Axis Resolution	0.001°
Positioning Accuracy	±2 µm linear axes
Machine Base	Cast iron / polymer composite (configuration-dependent)
CNC Control	Schneeberger CNC with dedicated insert grinding software
Workholding	Precision collets, hydraulic mandrels, custom fixtures
Coolant	High-pressure flood coolant with fine filtration
Software	Insert geometry libraries, 5-axis toolpath generation, simulation

Specifications sourced from schneeberger.com — verified 2026-03-28

Strengths & Limitations

Strengths

5-axis simultaneous grinding enables complete insert geometry — rake faces, relief angles, edge chamfers, and profiles — in a single clamping, eliminating reclamping errors
Purpose-built insert grinding software with ISO/ANSI insert geometry libraries dramatically reduces programming time compared to general-purpose 5-axis CNC programming
Sub-micron linear axis resolution and 0.001-degree rotary resolution produce insert geometry accuracy that directly translates into consistent cutting tool performance
Production-capable throughput at the NORMA's cycle times makes it viable for insert manufacturing at scale, not just prototype or toolroom applications
Comprehensive simulation prevents collision during 5-axis grinding cycles, protecting expensive workpieces and grinding wheels during setup of new insert types
Schneeberger's precision grinding heritage translates into a machine built from the ground up for the specific demands of cutting tool surface finish and edge quality

Limitations

Insert grinding is a specialized application — the NORMA is not a general-purpose CNC grinding machine and does not deliver value outside of cutting tool and form tool production
At $300,000-$500,000, it is a significant investment for shops that do not have sufficient insert grinding volume to utilize the machine's production capacity
5-axis simultaneous grinding programming requires skilled operators and process engineers — the software libraries help, but non-standard insert geometries still demand expertise
Coolant filtration for insert grinding (carbide particles, coolant oil, grinding swarf) requires a high-quality filtration system — inadequate filtration degrades surface finish and accelerates wheel wear

Best For

Indexable insert manufacturers grinding precision carbide, cermet, and ceramic cutting inserts to tight geometric tolerances for distribution to machining customers Custom cutting tool manufacturers producing specialized form tools, profiling inserts, and thread cutting inserts where standard geometry libraries must be customized Precision tooling departments in aerospace and medical device manufacturing that produce their own cutting tools in-house for tight material specifications Tool grinding service centers offering insert reconditioning and resharpening as a value-added service to machining customers

Frequently Asked Questions

01 What insert geometries can the NORMA grind?

The NORMA can grind the full range of standard ISO and ANSI indexable insert geometries: triangular, square, rhombic, round, and trigon shapes in both positive and negative rake configurations. Standard relief angles, chipbreaker profiles, wiper edges, and T-land chamfers are all within the machine's capability. User-defined profiles for custom insert geometries can be programmed using the software's toolpath generation tools. Essentially, any insert geometry that can be described mathematically can be ground on the NORMA — the practical limit is the grinding wheel's ability to reach all surfaces without collision.

02 What is the typical cycle time for grinding an indexable insert on the NORMA?

Cycle time depends heavily on insert size, material, and number of operations. For a standard ISO triangular carbide insert (IC 12 mm) requiring top face, all three flanks, and edge prep, typical cycle time on the NORMA is 2-5 minutes per insert. Round inserts with continuous profiles take longer. Larger inserts (IC 25 mm and above) with multiple ground features may require 8-15 minutes. The NORMA is designed for batch production of 50-5,000 identical inserts per run, where setup amortizes over the batch and cycle time is the critical economic variable.

03 What grinding wheels does the NORMA use for carbide insert grinding?

Carbide insert grinding on the NORMA uses diamond grinding wheels — superabrasive wheels with diamond abrasive bonded in metal, resin, or vitrified bond systems. Resin bond diamond wheels are most common for finish grinding of carbide, providing good surface finish and controlled wheel wear. Metal bond wheels are used for heavy stock removal on roughing passes. Wheel specifications (grit size, concentration, bond type) are selected based on carbide grade, surface finish requirement, and material removal rate target. Schneeberger's application engineers specify wheel parameters during machine qualification.

04 Can the NORMA also grind HSS cutting tools, not just carbide inserts?

Yes, the NORMA can grind HSS (high-speed steel) tools and inserts using conventional aluminum oxide or CBN grinding wheels — the 5-axis architecture is material-agnostic. CBN wheels for HSS provide excellent results with long wheel life. The machine's software libraries include HSS tool geometries. However, the NORMA is most often specified for carbide insert grinding where its capabilities align most closely with production requirements. For HSS-only grinding operations, the Schneeberger COMPACT T or TITAN may be more cost-effective choices.