Matrix NC
Race grinding machine

Advantages Options Highlights Technical data

Matrix NC Race grinding machine

Structuring for winning times

Matrix NC Race grinding machine

Structuring for winning times

The way to the top almost always comes down to a very fine line. A line where success or failure can be measured in a fraction of an inch. Where hundredths of seconds determine victory or defeat. For the best skiers in the world, these advantages of hundredths of seconds are what decide whether they are the first to reach the pinnacle of success or not.


The Matrix NC race grinding machine creates structures and surfaces that let ski racers determine exactly who benefits from these hundredths of seconds. So they can take control over those fine margins that ultimately make all the difference.

The advantages:

  • Adaptable to various ­needs thanks to modular construction 
  • Extensive configuration options
  • Wide range of options available
  • High-precision grinding force adjustment, either electronic or pneumatic
  • Dynamic process for balancing grinding stones directly on machine
  • Intuitive operation using integrated ­touch panel or external PC
  • Integrated stone management
  • Integrated level control for ­stone aggregate 


Matrix NC Nordic © Atomic
  • Equipped with choice of 1 x 2.8", 2 x 2.8", or 1 x 5.9" stone
  • Comprehensive selection of stones and ­diamonds for Nordic requirements
  • Stone available with twin structure (5.9" stone)
  • Centerings adapted for ­Nordic
  • Suitable for ski jumping


Matrix NC Alpine © Rossignol
  • 5.9" stone for Alpine
  • Comprehensive selection of stones and diamonds for Alpine requirements
  • Centerings adapted for Alpine
  • Up to 16 substructures across the entire width of the stone
  • Extensive structure pool available

Variants and options

Matrix NC racing service machine


Function Electronic control | pneumatic control
Stone dimensions 1 x 70, 2 x 70, 1 x 150 mm /
1 x 2.8", 2 x 2.8", 1 x 5.9" (selectable)
Pneumatic centerings 0, 2, 3, 4 (selectable)
V-centerings 0, 1, 2, 4 (selectable)
Go-kart feed roller Slick or tread (selectable)
Rubberized feed roller 20° or 50° Shore (selectable)


Options Electronic control Pneumatic control
Operation via touch panel x o
Operation via external PC o o
Integrated balancing system x o
Second foot pedal x o
Filling pressure control for go-kart o o
Electronic comfort package o  
Pneumatic comfort package   o
Automatic stone cleaner o o
High-pressure pump o  
Embossing device o o
Structure package x o
Profile/3D structures o o
Simulation software for external PC o o
Hand-held scanner o o
Stone data management o o

x = standard, o = option


Based on a wide range of optimizations relating to the mechanics, electronics, software, and ease of use, we have succeeded in taking the development of our base ­grinding machine for racing sports to the next level.

High-performance structures

  • High precision, precisely reproducible structures can be created on up to 3 ­levels
  • Profile/3D structures are easy to create with integrated structure ­generator
  • Up to 16 substructures can be generated ­across the entire width of the stone
  • Existing Race NC programs can also be transferred over in addition to extensive Matrix NC structure pool

Intuitive operation

Intuitive user interface
  • Simple, intuitive ­operation using 21.5" touch panel 
  • Preview of structures in structure generator
  • Two different user levels ensure safe operation by ­different users 
  • Help program makes stone ­changes and ­balancing easier

Streamlined for precision

  • The pair of lateral pressure levers can be precisely controlled along the entire length of the ski using both the elect­ronic and pneumatic contact ­force control
  • Automatic stone height ­adjustment ensures that the ­working height, distance between rollers, and ­pressure remain the same (optional with pneumatic variant)
  • Integrated balancing system guarantees ­vibration-free grinding (optional with ­pneumatic variant)

Digital interfaces

  • Structures and grinding ­programs can be easily created using simulations on an external PC or laptop and imported via USB or LAN
  • The Matrix NC can be operated using a laptop if needed
  • Optional stone management can be used to record structural and production data for each grinding stone
  • Quick and easy access to grinding programs with hand-held scanner

Very convenient to operate and maintain

  • Stone cover ensures operator ­safety and ­prevents water escaping during ­dressing
  • Stone is easy to access and change in just a few steps
  • Measuring of the diamond can be precisely controlled using external button panel

Precise and reproducible results

The optional cooling unit ensures a controlled temperature of the grinding water, so grinding results can be precisely reproduced at a consistent level of quality.

Compatible with embossing rollers

Embossing rollers can be used to provide the finishing touch. The relevant programs and pressure curves can be saved and accessed as needed. Embossing rollers from other manufacturers can also be used.

Technical data

  Electronic feed Pneumatic feed
Rated voltage / frequency 3 AC, 208–400 V, 50/60 Hz 3 AC, 400 V, 50 Hz 3 AC, 208–220 V, 60 Hz* 3 AC, 220 V, 50 Hz*
Power  5.7 KW 5.7 KW    
Rated current 22.1–13.2 A 13.2 A    
Fuse min./max. 25 / 32 25 / 32    

* Upon request. We reserve the right to make technical modifications.


Feed speed 3 – 20 m/min / 9.8–65.6 ft/min
Ambient temperature 5 °C – 35 °C / 41 °F–95 °F 
Screen 21.5" FullHD TFT 1920 x 1080 (16:9) multi-touch
Weight (without contents of tank) ca. 980 kg / Approx. 3215.2 lbs.
Dimensions (W x H x D) 2335 x 1525 x 880 mm / 92 x 60 x 35" (without screen) 
2335 x 1715 x 880 mm / 92 x 67.5 x 35" (with screen)
Stone diameter max./min. 350 / 295 mm / 13.78 / 11.61"
Stone width 150 / 70 / 2 x 70 mm / 5.9 / 2.8 / 0.08 x 2.8"
Grinding rpm 100–1200 rpm
Dressing rpm 200–2000 rpm
Contact pressure 50–500 N
Feed speed 3 – 20 m/min / 9.8–65.6 ft/min
Dressing speed 1 – 50 mm/sec / 0.04–2.0 inch/s
Tank volume 210 Liter / 55.5 US gal.
Noise emission Approx. 74 dB(A)
Ski length With pneumatic centering: from 1400 mm / 55.1", 
with V-centering: from 1200 mm / 47.2"

We reserve the right to make technical modifications.

We're happy to help!

WINTERSTEIGER's experienced sales staff can help tailor an individual solution to fit your needs!

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