High-Stability Vacuum-Compatible Mirror Mounts

VMHX

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VMHX

VMHX-series mounts are all-stainless steel, vacuum compatible mounts made for standard 12.7-mm (0.5-in.), 25.4-mm (1-in.), 30-mm (1.18-in.), and 50.8-mm (2-in.) mirrors. To minimize the outgassing, special cleaning, along with vacuum grease and vented holes are provided. BARRIERTA SUPER IS/V vacuum grease is used. The MHX mounts feature a hollow-frame design that not only provides a higher moment of inertia to maximize stiffness but also thinner, reduced-mass sections allowing it to reach thermal equilibrium faster than traditionally designed mounts. Thermal repeatability tests validate the effectiveness of the new frame design, showing lower deflection and equivalent repeatability against rival mounts. The MHX mount is loaded with additional features like center-post mounting, adhesive wells, and keying pin slots, all in the industry’s most compact and affordable stainless steel mount. Ideal for interference measurement or precision measurement.

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Material

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details

VMHX-12.7F

Front Loading

±3°

Stainless Steel

3 Axes

φ12.7mm

6-12 weeks

$337.00

Compatible Optics Thickness	2 - 6mm
Clear Aperture	11.5mm
Number of Adjustment Axes	3 point
Adjustment Screw Thread	M4 x 0.250mm (~100 TPI)
Adjustment Range /Tilt	+/-3deg.
Adjustment Range /Rotation	+/-3deg.
Resolution /Tilt	About 0.8deg./rotation
Resolution /Rotation	About 0.8deg./rotation

details

VMHX-50.8A

Front Loading

±3°

Stainless Steel

2 Axes

φ50.8mm

6-12 weeks

$459.00

Mount Material	Stainless Steel
Compatible Optics Diameter	50.8mm
Compatible Optics Thickness	5 - 13mm
Mirror Clamping Mechanism	Set Screw with Torsion Barrier, 2-mm (5/64-in.) Hex Key
Recommended Mirror Clamping Torque	0.07+/-0.01 Nm (10+/-2 oz.-in.)
Number of Adjustment Axes	2 points
Angular Travel Range	+/-3deg.
Linear Travel Range	+/-3.5mm
Adjuster Thread	M6 x 0.250mm (~100 TPI)
Standardized Adjustment Sensitivity (based on 1deg. knob rotation)	13 urad
Typical Adjustment Sensitivity	4+/-2 urad
Dowel Pin Keys	2mm Slot and Hole
Standard Mounting	Counterbored clearance hole for M4 / 8-32 screws
Center-Post Mounting	M4 and 8-32 threaded holes
Thermal Repeatability with a 10deg.C Thermal Cycle	1.5 urad

details

VMHX-101.6F

Front Loading

±2°

Stainless Steel

3 Axes

φ101.6mm

6-12 weeks

$1,527.00

Mount Material	Stainless Steel
Compatible Optics Diameter	101.6mm
Compatible Optics Thickness	10 - 20mm
Mirror Loading	Front
Mirror Clamping Mechanism	Set Screw with Torsion Barrier, 2-mm (5/64-in.) Hex Key
Recommended Mirror Clamping Torque	0.07 +/-0.01 Nm (10+/-2 oz.-in.)
Number of Adjustment Axes	3 points
Angular Travel Range	+/-2 Deg
Linear Travel Range	+/-3.5mm
Adjuster Thread	M6 x 0.250mm(~100 TPI)
Standardized Adjustment Sensitivity (based on 1 deg. knob rotation)	13 urad
Typical Adjustment Sensitivity	2 +/-1 urad
Dowel Pin Keys	2mm Slot and Hole
Standard Mounting	Clearance hole for M6 / 1/4-20 screws
Center-Post Mounting	M6 and 1/4-20 threaded holes

details

VMHX-25.4F

Front Loading

±3°

Stainless Steel

3 Axes

φ25.4mm

6-12 weeks

$327.00

Compatible Optics Thickness	3 - 7mm
Mirror Clamping Mechanism	Set Screw with Torsion Barrier, 2-mm (5/64-in.) Hex Key
Recommended Mirror Clamping Torque	0.07+/-0.01 Nm (10+/-2 oz.-in.)
Number of Adjustment Axes	3 points
Angular Travel Range	+/-3deg.
Linear Travel Range	+/-3.5mm
Adjuster Thread	M6 x 0.250mm(~100 TPI)
Standardized Adjustment Sensitivity (based on 1deg. knob rotation)	20 urad
Typical Adjustment Sensitivity	6+/-2 urad
Dowel Pin Keys	2mm Slot and Hole
Standard Mounting	Counterbored clearance hole for M4 / 8-32 screws
Center-Post Mounting	M4 and 8-32 threaded holes
Thermal Repeatability with a 10deg.C Thermal Cycle	1.5 urad

details

VMHX-12.7A

Front Loading

±3°

Stainless Steel

2 Axes

φ12.7mm

6-12 weeks

$337.00

Finish	None
Compatible Optics Thickness	2 - 6mm
Clear Aperture	11.5mm
Adjustment Screw Thread	M4 x 0.250mm (~100 TPI)
Adjustment Range /Tilt	+/-3deg.
Adjustment Range /Rotation	+/-3deg.
Resolution /Tilt	About 0.8deg./rotation
Resolution /Rotation	About 0.8deg./rotation

details

VMHX-50.8F

Front Loading

±3°

Stainless Steel

3 Axes

φ50.8mm

6-12 weeks

$481.00

Mount Material	Stainless Steel
Compatible Optics Diameter	50.8mm
Compatible Optics Thickness	5 - 13mm
Mirror Clamping Mechanism	Set Screw with Torsion Barrier, 2-mm (5/64-in.) Hex Key
Recommended Mirror Clamping Torque	0.07+/-0.01 Nm (10+/-2 oz.-in.)
Number of Adjustment Axes	3 points
Angular Travel Range	+/-3deg.
Linear Travel Range	+/-3.5mm
Adjuster Thread	M6 x 0.250mm(~100 TPI)
Standardized Adjustment Sensitivity (based on 1deg. knob rotation)	13 urad
Typical Adjustment Sensitivity	4+/-2 urad
Dowel Pin Keys	2mm Slot and Hole
Standard Mounting	Counterbored clearance hole for M4 / 8-32 screws
Center-Post Mounting	M4 and 8-32 threaded holes
Thermal Repeatability with a 10deg.C Thermal Cycle	1.5 urad

details

VMHX-25.4A

Front Loading

±3°

Stainless Steel

2 Axes

φ25.4mm

2 weeks

$316.00

Compatible Optics Thickness	3 - 7mm
Mirror Clamping Mechanism	Set Screw with Torsion Barrier, 2-mm (5/64-in.) Hex Key
Recommended Mirror Clamping Torque	0.07+/-0.01 Nm (10+/-2 oz.-in.)
Number of Adjustment Axes	2 points
Angular Travel Range	+/-3deg.
Adjuster Thread	M6 x 0.250mm(~100 TPI)
Standardized Adjustment Sensitivity (based on 1deg. knob rotation)	20 urad
Typical Adjustment Sensitivity	6+/-2 urad
Dowel Pin Keys	2mm Slot and Hole
Standard Mounting	Counterbored clearance hole for M4 / 8-32 screws
Center-Post Mounting	M4 and 8-32 threaded holes
Thermal Repeatability with a 10deg.C Thermal Cycle	1.5 urad

details

VMHX-12.7F-R

Rear Loading

±3°

Stainless Steel

3 Axes

φ12.7mm

2 weeks

$344.00

Compatible Optics Thickness	2 - 6mm
Clear Aperture	11.5mm
Number of Adjustment Axes	3 point
Adjustment Screw Thread	M4 x 0.250mm (~100 TPI)
Adjustment Range /Tilt	+/-3deg.
Adjustment Range /Rotation	+/-3deg.
Resolution /Tilt	About 0.8deg./rotation
Resolution /Rotation	About 0.8deg./rotation

details

VMHX-101.6A

Front Loading

±2°

Stainless Steel

2 Axes

φ101.6mm

2 weeks

$1,491.00

Mount Material	Stainless Steel
Compatible Optics Diameter	101.6mm (4 in.)
Compatible Optics Thickness	10 - 20mm
Mirror Loading	Front
Mirror Clamping Mechanism	Set Screw with Torsion Barrier, 2-mm (5/64-in.) Hex Key
Recommended Mirror Clamping Torque	0.07 +/-0.01 Nm (10+/-2 oz.-in.)
Number of Adjustment Axes	2 points
Angular Travel Range	+/-2 Deg
Linear Travel Range	N/A
Adjuster Thread	M6 x 0.250mm (~100 TPI)
Standardized Adjustment Sensitivity (based on 1 deg. knob rotation)	13 urad
Typical Adjustment Sensitivity	2 +/-1 urad
Dowel Pin Keys	2mm Slot and Hole
Standard Mounting	Clearance hole for M6 / 1/4-20 screws
Center-Post Mounting	M6 and 1/4-20 threaded holes

details

VMHX-25.4F-R

Rear Loading

±3°

Stainless Steel

3 Axes

φ25.4mm

2 weeks

$333.00

Compatible Optics Thickness	3 - 8mm
Mirror Clamping Mechanism	Set Screw with Torsion Barrier, 2-mm (5/64-in.) Hex Key
Recommended Mirror Clamping Torque	0.07+/-0.01 Nm (10+/-2 oz.-in.)
Number of Adjustment Axes	3 points
Angular Travel Range	+/-3deg.
Linear Travel Range	+/-3.5mm
Adjuster Thread	M6 x 0.250mm(~100 TPI)
Standardized Adjustment Sensitivity (based on 1deg. knob rotation)	20 urad
Typical Adjustment Sensitivity	6+/-2 urad
Dowel Pin Keys	2mm Slot and Hole
Standard Mounting	Counterbored clearance hole for M4 / 8-32 screws
Center-Post Mounting	M4 and 8-32 threaded holes
Thermal Repeatability with a 10deg.C Thermal Cycle	1.5 urad

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High-Stability Vacuum-Compatible Mirror Mounts

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