PRK-A Series Pressure Arms

Product Description

• Provides clamping force for stage-equipped adjustment mounts.
• Flexible clamping mechanism.
• M4 thread at the bottom of the rod.

The pressure arm secures optical components to stage-equipped optical adjustment mounts or V-shaped fixtures via 2mm hex nylon set screws. It is fixed to the rod by locking the flexible mechanism with a 2.5mm ball-head screwdriver or hex wrench. The rod also features a through hole to apply additional torque when tightening the rod.

Model	PRK1-A65	PRK2-A65	PRK3-A30
Rod Specifications	Ø6*65mm	Ø8*70.6mm	Ø5*36.6mm
Clamping Height	52.5mm	56mm	25.4mm
Thread Type	M4	M4	M4
Weight	22.8g	36.3g	8.5g
Material	Aluminum alloy + Stainless steel	Aluminum alloy + Stainless steel	Aluminum alloy + Stainless steel

Technical Description

The pressure arm secures optical components to stage-equipped optical adjustment mounts or V-shaped fixtures via 2mm hex nylon set screws. It is fixed to the rod by locking the flexible mechanism with a 2.5mm ball-head screwdriver or hex wrench. The rod also features a through hole to apply additional torque when tightening the rod.

PRK3-A Ø5mm Pressure Arm

• Rod diameter: Ø5mm.
• Provides clamping force for stage-equipped adjustment mounts.
• M4 threads at both top and bottom of the rod.
• Can clamp optical components up to 25.4mm in height.
• Extended rods can increase the maximum height of clamped optical components.

The PRK3-A is compatible with clamping optical components up to 25.4mm in height. The rod is Ø5*31mm with M4 threads (5mm thread length) at both ends. The maximum clamping height can be increased with extended rods. The pressure arm is equipped with 2 Ø5mm through holes for switching clamping rods. The distances between the rod center and the nylon set screw center are 27.9mm and 17.5mm.

Assembly

Application Example

Engineering Drawing Download

PRK1-A65-Engineering Drawing

PRK2-A65-Engineering Drawing

PRK3-A30-Engineering Drawing