HH-A-H2.5 / HH-AS-H2.5 automatic HD probe heads

HEAVY DUTY - For the most challenging applications


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The HH-A-H2.5 is capable of indexing in 2.5° increments and can achieve 20,736 unique positions due to increased rotation of the A Axis (± 180°).

The head is fitted with the heavy-duty kinematic joint (HDKJ), which can be connected to a multiwire to give full multi-sensor support.

The HDKJ carries extensions of up to 750mm. Laser scanners and scanning heads can be supported further from the axis of rotation than with conventional probe heads due to the combination of extreme rotational torque and the HDKJ adaptor.

The HDKJ can be changed either manually without the need for requalification or automatically with the HR-R tool changer fitted with the optional HR-RH heavy-duty module changer.

The HH-A-2.5 range of probe heads feature a number of new innovations including an fully embedded controller, capacitive crash protection and the all new heavy duty kinematic joint.

All of the probe heads in the range benefit from a completely redesigned drive system, including a Hirth Gear for accurate positioning of the probe. The new design delivers the advantage of a high degree of indexable positions and very high rotational torque.

The HH-A-2.5 can either be mounted on the CMM with a shank or flange, alternatively the HH-AS8-2.5 can be mounted on any CMM with an 80mm ram.

  • Features & benefits
    • Indexing in steps of 2.5° - 20,736 positions for highest flexibility
    • Extensions up to 750mm available
    • Extremely high rotation torque - 1.7 NM
  • Technical data

    HH-A-H2.5 HH-AS-H2.5
     Indexing Angle 2.5°
     A axis ± 180°
     B axis ± 180°
     Rotation speed 90° in 2.5 s
     Positioning Repeatability

    0.5µm at 100mm from the center of A axis rotation

     Max recommended drive torque 1.7Nm
     Max. extension length 750 mm
     Weight 1550g 1600g
     Head mounting Shank or Flange Direct to Ram
     Probe mounting HDKJ
     Head controller

    HH-C-V2.0 / HH-CA-V2.0 (with HR-R Probe Changer)

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