Head positioners for chairs

Head Positioners for chairs:

If you’re seeking a reliable solution for primate or monkey research on chairs equipped with a top plate or top bar, our Head Holder Positioners are here to exceed your expectations.

This exceptional device serves as the essential link between The Restraint Chair and the implanted head holder. By effectively limiting head movement, it establishes a consistent reference point for every seating session, ensuring accuracy in your experiments or observations.

With its user-friendly  design, adjusting the positioner becomes a breeze. Achieve optimal positioning tailored to each subject’s requirements effortlessly, promoting both comfort and stability throughout their experience.

Gone are the days of struggling with inconsistent results due to unreliable head movements. Our positioners provides a secure hold on the subject’s head, eliminating unwanted variables from interfering with your data collection process.

Crafted from a variety  premium materials, our positioners guarantees longevity even under demanding research conditions. Its robust construction ensures that it can withstand the rigors of primate or monkey research without compromising its functionality.

Invest in our  Head Holder Positioners today and witness the transformative impact it brings to your research endeavors. Embrace precision, embrace consistency.

Head positioners for chairs are available in the following styles:

6-FHC-S26-FHC-S2 Head holder on chair for use with chairs with a top plate and mates with the 6-FHP-_1 large cylinder style head holder on the head.

Discover unparalleled stability and convenience in your monkey research electrophysiology studies with the 6-FHC-S2 Head Holder on Chair. Specifically designed for use with chairs equipped with a top plate, this head holder seamlessly integrates with the 6-FHP-_1 large cylinder style head holder on the head.

The comprehensive set includes all necessary components, such as the FNFH-5/16-18-S and 6-SPAW-.125, ensuring a hassle-free setup for precise experimentation.

Upgrade your research setup now for optimal results.


6-FHC-S2-OLD6-FHC-S2-OLD Head holder on chair for use with chairs with a top plate and mates with the 6-FHP-_1 large cylinder style head holder on the head. Bottom Shaft is 3/8″ Diameter.

Transform your chair into a comfortable and ergonomic workspace with the 6-FHC-S2-OLD Head holder.

Designed for chairs with a top plate, this head holder mates perfectly with the 6-FHP-_1 large cylinder style head holder on the head, ensuring a secure fit.

The bottom shaft of this head holder has a diameter of 3/8″, providing stability and support during use.

The set includes all the necessary components for easy installation, including 6-FHC-S2A-OLD, 6-FHC-S2B, 6-FHC-S2C, FWC-5/16-S, FNJH-5/16-18 x 3/16-6, FNFH-5/16-18-S, and 6-SPAW-.125. Enhance your chair’s functionality with the versatile 6-FHC-S2-OLD Head holder!


6-FHC-S2-CD6-FHC-S2-CD Head holder on chair for use with chairs with a top plate and mates with the 6-FHP-_2 Post style head holder on the head
The set includes:

  • 1 EACH – 6-FHB-S2B
  • 1 EACH – 6-FHC-S2B
  • 1 EACH – 6-FHC-S2D
  • 2 EACH – FWC-5/16-S
  • 1 EACH – FNJH-5/16-18 x 3/16-6
  • 1 EACH – FNFH-5/16-18-S
  • 1 EACH – 6-SPAW-.125


6-FHC-S2-CDXF6-FHC-S2-CDXF Head holder on chair for use with chairs with a top plate and mates with the 6-FHP-X2F Footed Post style head holder on the head
The set includes:

  • 1 EACH – 6-FHB-S2B-XF
  • 1 EACH – 6-FHC-S2B
  • 1 EACH – 6-FHC-S2D
  • 2 EACH – FWC-5/16-S
  • 1 EACH – FNJH-5/16-18 x 3/16-6
  • 1 EACH – FNFH-5/16-18-S
  • 1 EACH – 6-SPAW-.125


6-FHC-S66-FHC-S6 Head holder on chair for use with chairs with a top plate and mates with the 6-FHP-_6 Medium cylinder style head holder on the head
The set includes:

  • 1 EACH – 6-FHC-S6A
  • 1 EACH – 6-FHC-S2B
  • 1 EACH – 6-FHC-S2D
  • 2 EACH – FWC-5/16-S
  • 1 EACH – FNJH-5/16-18 x 3/16-6
  • 1 EACH – FNFH-5/16-18-S
  • 1 EACH – 6-SPAW-.125


6-FHC-S46-FHC-S4 Head holder on chair for use with chairs with a top plate and mates with the 6-FHP-_4 Small cylinder style head holder on the head. Bottom Shaft is 3/8″ Diameter
The set includes:

  • 1 EACH – 6-FHC-S24
  • 1 EACH – 6-FHC-S2B
  • 1 EACH – 6-FHC-S2C
  • 2 EACH – FWC-5/16-S
  • 1 EACH – FNJH-5/16-18 x 3/16-6
  • 1 EACH – FNFH-5/16-18-S
  • 1 EACH – 6-SPAW-.125

Swivel head positioner for top plate to mate the large cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-SP Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S1 Bottom shaft


6-FAC-SP-S26-FAC-SP-S2 Swivel head positioner for top plate to mate the Post style head holder on head.
Includes:

  • 1 Each – 6-FAC-SP Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S2 Bottom shaft

6-FAC-SP-S2XF Swivel head positioner for top plate to mate the 6-FHP-X2F Footed Post style head holder on head.
Includes:

  • 1 Each – 6-FAC-SP Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S2-FX Bottom shaft


6-FAC-SP-S46-FAC-SP-S4 Swivel head positioner for top plate to mate the Small cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-SP Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S4 Bottom shaft


6-FAC-SP-S66-FAC-SP-S6 Swivel head positioner for top plate to mate the Medium cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-SP Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S6 Bottom shaft

Universal Head Holder Positioner – use this option with chairs that have a top bar. This also can work for a variety of different manufacturer’s chairs.


6-FHB-S26-FHB-S2 Universal Head Positioner mates with the post style head holder on head.
Includes:

  • 1 EACH 6-FHB-S2A
  • 1 EACH 6-FHB-S2B
  • 1 EACH 6-SPAW-.125


6-FHB-S2-CX6-FHB-S2-CX Universal Head Positioner mates with the large cylinder style head holder on head.
Includes:

  • 1 EACH 6-FHB-S2A
  • 1 EACH 6-FHC-S2A
  • 1 EACH 6-SPAW-.125


6-FHB-S2-X2F6-FHB-S2-X2F Universal Head Positioner mates with the footed post style head holder on head.
Includes:

  • 1 EACH 6-FHB-S2A
  • 1 EACH 6-FHB-S2B-XF
  • 1 EACH 6-SPAW-.125


6-FHB-S46-FHB-S4 Universal Head Positioner mates with the small cylinder style head holder on head.
Includes:

  • 1 EACH 6-FHB-S2A
  • 1 EACH 6-FHC-S4A
  • 1 EACH 6-SPAW-.125


6-FHB-S66-FHB-S6 Universal Head Positioner mates with the medium cylinder style head holder on head.
Includes:

  • 1 EACH 6-FHB-S2A
  • 1 EACH 6-FHC-S6A
  • 1 EACH 6-SPAW-.125


6-FAC-SB-S16-FAC-SB-S1 Swivel head positioner for Universal head Positioner to mate the large cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-SB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S1 Bottom shaft


6-FAC-SB-S26-FAC-SB-S2 Swivel head positioner for Universal head Positioner to mate the Post style head holder on head.
Includes:

  • 1 Each – 6-FAC-SB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S2 Bottom shaft


6-FAC-SB-S2-FX6-FAC-SB-S2FX Swivel head positioner for Universal head Positioner to mate the footed head post style head holder on head.
Includes:

  • 1 Each – 6-FAC-SB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S2-FX Bottom shaft


6-FAC-SB-S46-FAC-SB-S4 Swivel head positioner for Universal head Positioner to mate the Small cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-SB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S4 Bottom shaft


6-FAC-SB-S66-FAC-SB-S6 Swivel head positioner for Universal head Positioner to mate the large cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-SB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S6 Bottom shaft

Audio Chair Head Positioners 5/8″ Upper Shaft


6-CCA-HP-C-S2B6-CCA-HP-C-S2B Veritical Head positioner for the Audio chair Mates with the Standard head post 6-FHP-S2.
Includes:

  • 1 Each 6-CCA-HP-C
  • 1 Each 6-FHB-S2B


6-CCA-HP-C-S2A6-CCA-HP-C-S2A Veritical Head positioner for the Audio chair Mates with the Large cylinder style head positioner.
Includes:

  • 1 Each 6-CCA-HP-C
  • 1 Each 6-FHC-S2A


6-CCA-HP-C-S4A6-CCA-HP-C-S4A Veritical Head positioner for the Audio chair Mates with the Small cylinder style head positioner.
Includes:

  • 1 Each 6-CCA-HP-C
  • 1 Each 6-FHC-S4A


6-CCA-HP-C-S6A6-CCA-HP-C-S6A Veritical Head positioner for the Audio chair Mates with the Medium cylinder style head positioner.
Includes:

  • 1 Each 6-CCA-HP-C
  • 1 Each 6-FHB-S2B

Where more room is needed The following models are available:

6-CCA-HP-C1-S2B
Includes:

  • 1 Each 6-CCA-HP-C1
  • 1 Each 6-FHB-S2B
  • 1 Eech 6-FHC-SC


6-CCA-HP-C-S2A6-CCA-HP-C-S2A Veritical Head positioner for the Audio chair Mates with the Large cylinder style head positioner.
Includes:

  • 1 Each 6-CCA-HP-C1
  • 1 Each 6-FHC-S2A
  • 1 Eech 6-FHC-SC


6-CCA-HP-C-S4A6-CCA-HP-C-S4A Veritical Head positioner for the Audio chair Mates with the Small cylinder style head positioner.
Includes:

  • 1 Each 6-CCA-HP-C1
  • 1 Each 6-FHC-S4A
  • 1 Eech 6-FHC-SC


6-CCA-HP-C-S6A6-CCA-HP-C-S6A Veritical Head positioner for the Audio chair Mates with the Medium cylinder style head positioner.
Includes:

  • 1 Each 6-CCA-HP-C1
  • 1 Each 6-FHB-S2B
  • 1 Eech 6-FHC-SC


6-FAC-FD-S16-FAC-FD-S1 Swivel head positioner for the Audio chair to mate the large cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-FB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S1 Bottom shaft


6-FAC-FD-S26-FAC-FD-S2 Swivel head positioner for the Audio chair to mate the Post style head holder on head.
Includes:

  • 1 Each – 6-FAC-FB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S2 Bottom shaft


6-FAC-FD-S2FX6-FAC-FD-S2FX Swivel head positioner for the Audio chair to mate the Footed Post style head holder on head.
Includes:

  • 1 Each – 6-FAC-FB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S2-FX Bottom shaft


6-FAC-FD-S46-FAC-FD-S4 Swivel head positioner for the Audio chair to mate the Small cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-FB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S4 Bottom shaft


6-FAC-FD-S66-FAC-FD-S6 Swivel head positioner for the Audio chair to mate the Medium cylinder style head holder on head.
Includes:

  • 1 Each – 6-FAC-FB Top Shaft
  • 1 Each – 6-FAC-SS Swivel
  • 1 Each – 6-FAC-S6 Bottom shaft

MRI CHAIR HEAD POSITIONERS
Head Holder Positioner for MRI Chairs use with the horizontal and Vertical MRI Chairs.

6-FHD-J9 Cilux Castellated Head positioner use only for use with the 6-FHD-J9 positioner

6-FHE-J1 Head positioner for Mri chairs fits the 6-FHP-J1 head holders on the head