Gravotech - M40 rotary engraving machine


M40: multi-purpose rotary engraving machine for signage and gifts
The M40 is a compact versatile signage engraving machine. Its large engraving area makes it a perfect engraving solution for medium-sized and flat objects. It can engrave a large range of materials such as plastic, glass, wood, metal, and many more!
  • Open structure
    Don’t let your machine decide what you can or can't engrave. The M40 210x305mm engraving area benefits from an open structure that allows larger items to be engraved when needed. Engrave very long plastic signage plates, electrical labels, thin wood beams, golf clubs, swords, irregular-shaped items, and more.
  • Engrave glass with the M40
    Gift version The M40 Gift includes an automatic lubricant tank and a rotary device to personalise glasses and bottles. The rotary device can be tilted for conical items. Engrave and personalise any flat or cylindrical items up to 110mm in height.
  • Adapted for beginners
    Control and adjust your work with our dedicated GravostyleTM or ABC engraving software thanks to several options. The M40 comes with an auto-centering jig and a laser beam (Point & Shoot) to help you place the item to engrave, while the engraving software automatically picks up its position. The included GravogripTM table firmly holds the item without leftover residue on it.

Technical Specifications

Automatic Z-axis
No need to manually measure your items.

Point & shoot
Easily place your item and start engraving.

Optional Bluetooth
Wireless communication between your software and the machine.

4.36mm spindle diameter
More stable spindle for higher precision.

Compatible with Twincut.

20,000 tr/min speed
Clean and smooth engraving finish.

Deep Vice
To engrave larger items.


Rotary, scribing

Marking Capacity

Marking area max
330 mm (13 in) x 260 mm (10.236 in)
Spindle power
30 W
Max object height
110 mm (4.3 in)

Max objects size (L x W x H) (weight)

550 mm (21.654 in) x 510 mm (20.079 in) x 320 mm (12.598 in)

Dimensions (L x W x H)

550 mm (21.654 in) x 510 mm (20.079 in) x 320 mm (12.598 in)

Machine weight

19 kg (41.888 lb)

Z axis auto



<70 dB

Type of spindle

Top load spindle
Hollow shaft motor

Point & shoot


Connection to computer

USB / Bluetooth (option)

Maximum speed

25 mm/s (0,98 in/s)

Z stroke (Z travel)

40 mm (1,575 in)

Rotation speed

20 000 rpm


ABC / Gravostyle / Gravotouch

Tool diameter

4,36mm (0,17 in)

Operating temperature

min. +5°C (+ 41°F) - max. +40°C (+104 °F)

M40 rotary plate engraving machine

The M40 engraving area matches the professional plate standards (doctor, lawyer, notary plates). It is the perfect plate engraving machine to engrave small and medium-sized plates and signs. Create in-house technical identification plates, electrical labels, operating instructions for appliances, professional plaques and many more. The engraving software mirror mode allows engraving on the reverse side of acrylic plates, for a clear and professional finish.

Personalized engraving of plaques

Create all kinds of funeral signage with your M40 engraving machine. Engrave wood, plastic, metal, coffin plates, or urns thanks to a cylindrical attachment, personalize commemorative items, add text, figures, and symbols to your composition and more.

M40 rotary engraving machine

Add color to your creation after the engraving. Apply black Gravolaque on plaques for a contrasted result, or personalize your plastic signs with cold wax (several colors available). Gravotech offers a wide choice of two-layer materials: take off the first layer to see the second one, and get colorful signs without adding any chemical product. Check our consumables catalog to see all the color combinations. Compatible with interior and exterior usage.

Glass, crystal
Wood, varnished wood
PMMA, Acrylic
Anodized Aluminum​​
Coated metal
Gold, silver, nickel, platinum
Stainless steel​​
= Marking / Etching
= Cutting
= Engraving / Deep marking

Associated Products

    M40: Gravograph versatile plate engraver

    Gravograph M40, medium footprint for a large engraving area


    Gravograph developed the M40 with the idea to complete the M range with a versatile engraving machine at an affordable price. This machine offers the user full accessibility to engraving objects.

    Based on an innovative “crane-like” mechanical concept, the M40 introduced Gravograph Point and Shoot function to facilitate professional plate engraving, immediately attracting many express engravers. 

    As the M40 is one of the first computer-controlled machines, Gravograph's customers have enjoyed the software's step-by-step guidance, which eliminates most risk of error.

    M40 - Rotary engraver - Gravograph