Breva

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Breva hexapod

Versatile positioning platform

BREVA hexapod has been specially designed to provide high angular accuracy. It allows angular positioning of objects like samples, probes or sensors with a resolution of 0.5 µm or 2.5 µrad.

As a reminder, the hexapod is a platform with a parallel structure enabling very high precision positioning of objects in space according to the 6 degrees of freedom.

BREVA hexapod can be used in any orientation: vertical, horizontal, upside down…

Linear travel range

± 75 mm

RESOLUTION

0.5 µm

Repeatability

± 0.5 µm

PAYLOAD

200 kg

Motion and positioning

	BREVA S	BREVA
	compact version	high amplitude version
Travel range Tx, Ty (mm)	± 60	± 75
Travel range Tz (mm)	± 30	± 50
Travel range Rx, Ry (deg)	± 15	± 20
Travel range Rz (deg)	± 15	± 22
Resolution Tx, Ty, Tz (µm)	0.25	0.5
Resolution Rx, Ry, Rz (µrad)	1.5	2.5
Repeatability Tx, Ty, Tz (µm)	± 0.5	± 0.5
Repeatability Rx, Ry, Rz (µrad)	± 2.5	± 2.5
Speed Tx, Ty (mm/s)	6	6
Speed Tz (mm/s)	4	4
Speed Rx, Ry (deg/s)	1.5	1.5
Speed Rz (mm/s; deg/s)	2.25	2.25

Mechanical properties

	BREVA S	BREVA
Payload capacity (kg) (vertical orientation / horizontal orientation)	200/ 80	200/ 80
Motor type	Stepper motor, gearhead
Encoder type	Absolute encoder

Miscellaneous

	BREVA S	BREVA
Operating temperature range (°C)	0 to + 50	0 to + 50
Materials	Aluminum, steel, stainless steel, plastic
Size mobile platform (mm)	Ø 310	Ø 289
Overall diameter without movement (mm)	Ø 380	Ø 606
Overall diameter with movement (mm)	Ø 442	Ø 655
Central aperture (mm)	Ø 130 for mobile platform Ø 136 for fixed platform	Ø 120 for mobile platform Ø 250 for fixed platform
Height in middle position (mm)	330	350
Mass (kg)	20.6	32
Cable length standard (m)	3