Optical Post, 24 in. Height, 1.5 in. Diameter, 1/4-20 Thread

The 42 Extra Long Standard Rod has suitable sturdiness for most general laboratory applications. Made of steel, it has a 1.5 in. (38.1 mm) diameter and is 24.0 in. (610.0 mm) tall. Steel provides much greater dynamic rigidity than aluminum. This means the 42 rod has a high resonant frequency and correspondingly low vibration amplitude required for optical laboratory use. Also, with its inherently greater stiffness and strength, it supports larger loads with greater stability. Steel construction has other advantages such as half the thermal expansion coefficient of aluminum and a higher heat capacity so thermal stability is enhanced.

1.5 inch Diameter Steel Tubing Construction

Newport optical support rods are made of 1.5 in.(38.1 mm) diameter steel tubing, whose material properties allow for greater dynamic rigidity than aluminum designs, as well as thermal stability. The optical support rods are made round to < 1/1000 of an in. (12 µm) for precise, reproducible mating of rod-mounted components. The matte finish of the rods provides a low-reflectivity surface that is resistant to gouging, scratching and corrosion. The hollow-core construction provides even the standard (undamped) support rods with lower vibration amplitudes and higher resonant frequencies, often preferred for sensitive optical systems. The inherently greater stiffness and strength of these steel rods provides its support for larger and heavier optical components.

Convenient Table Mounting

All optical support rods attach easily to tables either with an integral tie-down bolt or a steel ring base. We offer a wide selection of precision components including clamps, platforms and optics holders that mount interchangeably on the rods for complete component mounting flexibility.

Accessories for a Variety of Applications

Newport has designed several accessories that securely mount onto 1.5 in. rods to support and enhance a variety of applications. Optical support platforms are available to provide stable mounting surfaces for optical components at any orientation, angle and height on the post. Our Quick Disconnect Optical Rod Clamps allow components to be detached and attached quickly and easily, which is beneficial when changing or experimenting with different setups. The 625-RC Kinematic Mirror Mounts enable precise beam positioning for 2, 4, and 6 in. diameter mirrors, with either 100-TPI adjustment screws or micrometers for an orthogonal 10° angular adjustment range.

Specifications

Technical Specs

Type
Optical Support Post w/ Base
Height
610 mm
Thread Type
7.4 mm CLR
Material
Steel
Diameter
38.1 mm

Diameter Tolerance
0.0005 in.
Damped
No
Gear Rack
No

Type
Optical Support Post w/ Base
Height
610 mm
Thread Type
7.4 mm CLR
Material
Steel
Diameter
38.1 mm

Diameter Tolerance
0.0005 in.
Damped
No
Gear Rack
No

Resources & Downloads

Drawings And Cad

Rod42(89.6 kB, PDF)

Related Products

Frequently Purchased Together

Description	Compatibility	Price
M-340-RCPost Clamp, 38.1 mm Diameter Posts, M6 Thread	METRIC	$106
340-RCPost Clamp, 1.5 in. Diameter Posts, 1/4-20 Thread	IMPERIAL	$106
M-360-90Angle Bracket, 90°, 1/4-20 (M6) Slots, 25 mm Spacing	METRIC	$103
45Damped Optical Post, Mounting Base, 14 in. Height, 0.29 in. CLR	UNIVERSAL	$288
300-POptical Post Platform, 1.5 in. Diameter Posts, 3 Mounting Surfaces, 1/4-20	IMPERIAL	$272
370-RCPost Clamp, 1.5 in. Diameter Gear Rack Posts, 1/4-20 Thread	IMPERIAL	$208

Similar

Description	Compatibility	Price
41Optical Post, 7 in. Height, 1.5 in. Diameter, 1/4-20 Thread	IMPERIAL	$146
72Optical Post, Gear Rack, Mounting Base, 24 in. Height, 1.5 in. Diameter	UNIVERSAL	$496
70Optical Post, Gear Rack, 14 in. Height, 1.5 in. Diameter, 1/4-20 Thread	IMPERIAL	$251
40Optical Post, 14 in. Height, 1.5 in. Diameter, 1/4-20 Thread	IMPERIAL	$160
45Damped Optical Post, Mounting Base, 14 in. Height, 0.29 in. CLR	UNIVERSAL	$288

Compatible

Description	Compatibility	Price
300-POptical Post Platform, 1.5 in. Diameter Posts, 3 Mounting Surfaces, 1/4-20	IMPERIAL	$272
625-RC6Mirror Mount, 1.5 in. Post Mounted, 6.0 in. Diameter, Knob Adjustment	UNIVERSAL	$684
340-RCPost Clamp, 1.5 in. Diameter Posts, 1/4-20 Thread	IMPERIAL	$106
VPBXY Adjustable Base, 1/4-20 Thread	IMPERIAL	$288
32AOptical Post Positioner, Cap Screw, 0.7 in. Adjustment, 1.5 in. Post, 1/4-20	IMPERIAL	$176
625-RC2Mirror Mount, 1.5 in. Post Mounted, 2.0 in. Diameter, Knob Adjustment	UNIVERSAL	$481
34Rotatable Post Platform, Arbitrary Angle Mounting, 1.5 in. Post, 1/4-20	IMPERIAL	$196
SR-SCPost Clamp, Sliding, 1.5 in. Diameter Posts and Pillars, 1/4-20 Thread	IMPERIAL	$93
625-RC4Mirror Mount, 1.5 in. Post Mounted, 4.0 in. Diameter, Knob Adjustment	UNIVERSAL	$525