Incremental magnetic scale for CNC machines / 640 mm up to 30'040 mm / ± 10 µm

GVS 915

• Incremental magnetic scale, available in one piece or in modular version for large machines (up to 30040 mm measuring length or higher on request).
• Application in various industries such as machine tools, vertical lathes, gantry machines, laser/plasma cutting machines, robotics, automation, etc.
• Magnetic tape on stainless steel support, integrated with the machine guide, for excellent accuracy at any temperature.
• Resolutions up to 0.5 μm.
• Degree of accuracy ± 10 μm.
• Permanently connected modules, for a perfect seal against liquids and environmental contaminants that do not change over time.
• Reference indices in coded distance, with constant step or selectable every 50 mm over the entire measuring length, with zero magneto set device.
• Adjustable cable output, through double plug.
• Large alignment tolerances.
• Pressurization from both sides of the scale and/or transducer.

Type	Resolution absolute measure	Pole pitch	Accuracy grade	Max. traversing speed	Measuring length	Protection class	Data sheet
GVS 915 V	up to 0.5 μm *	2+2 mm	± 10 µm	up to 120 m/min	from 640 mm to 30040 mm, with steps of 200 mm *** Modules length: 1200, 1400, 1600, 1800, 2000 mm	IP 64 standard IP 67 on request
GVS 915 T	10 - 5 - 1 - 0.5 μm	2+2 mm	± 10 µm	up to 120 m/min	from 640 mm to 30040 mm, with steps of 200 mm *** Modules length: 1200, 1400, 1600, 1800, 2000 mm	IP 64 standard IP 67 on request

1. Rigidly bonded modules for a perfect seal,
   unchangeable over time.
2. Up to a measuring length of 30040 mm, on request also higher.
3. Self-guided and self-aligning read head (internal);
   constant signal quality (line driver or 1 Vpp).
4. T-block for the elastic attachment of the modules.
   Scale and magnetic tape thermal expansion independently.
5. Exclusive magnetic tape holding and guiding system.
   Large alignment tolerances of the modules.
6. High-precision magnetic tape on stainless steel carrier.
   steel carrier (pole spacing 2+2 mm).
   Resolution up to 0.5 µm.
7. Pressurization from both sides of the
   of the scale and/or the transducer.
8. Non-extensible sealing lips,
   attached to the lateral ends.
9. Magnetic band calibration.
   Max. accuracy grade ± 10 µm.
10. Block for fixing the magnetic tape to the machine.
    Linear thermal expansion suitable for the application
11. PUR cable suitable for continuous movements
12. Double connection. Adjustable cable output.
13. Reference indices at coded distance, at constant step, or selectable every 50 mm over the entire measuring length, with zero magneto-set device.
14. Seals to protect the circuit (IP 67).
15. Brackets for moving and fixing the transducer in the correct position.

Accessories

Digital display devices:

• Vision 518
• Vision 900

Positioning control:

• THESI 310
• THESI 320