Features

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• Ø2.63" x 3/8"
• Ceramic Magnet in Base Provides Excellent Holding Power: 70 lbs (311 N)
• Precision-Machined for Flat, Stable Mounting
• Mounting Hole Accepts 1/4" (M6) Cap Screws

The PMB3 Base is a permanent magnetic version of our IB3 Instrumentation Base. The magnet is sufficiently strong to securely hold the base in place without clamping to an optical table. This base is only compatible with magnetic optical tables and breadboards. These are ideal for components which will temporarily be in a beam path, such as power meters.

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• Holding Force: 175 lbs (778 N)
• 1/4"-20 (M6) Mounting Stud
• Typically Used with our Standard Ø1/2" or Ø1" Posts and Ø1/2" or Ø1" Post Holders

The MB175 heavy duty magnetic base has a switchable magnet, i.e. a magnet that can be turned on and off, for quick positioning of optical components. This base does not require additional hardware to secure it to the breadboard; however, it is only compatible with magnetic optical tables. The two bottom mounting surfaces have been precision ground for optical bench applications.

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PHM0 magnetic base used to mount a series of optics in close proximity to each other. Click to Enlarge

• Compact Design Ideal for High-Density Optical Setups
• ON/OFF Hex Key Switch for Easy Assembly
• Vertical Holding Force: 56 lb (250 N)
• Horizontal Holding Force: 22 lb (100 N)
• 1/4"-20 (M6) Post-Mounting Stud
• Typically Used with our Standard Ø1/2" or Ø1" Posts and Ø1/2" or Ø1" Post Holders

The PHM0 Post Base is a compact, switchable (i.e. the magnet can be turned on and off) magnetic base that allows the user to mount optics and instruments rigidly in a setup. The switchable magnetic design provides placement flexibility within the experiment. The magnet is aligned centrally along the length of the base and recessed to avoid damaging the work surface. It is sufficiently strong to securely hold the base in place without needing to clamp it to an optical table. The magnetic force can be switched on by turning the 3/16" (M5) switching screw counterclockwise 90°.

These bases are ideal for applications where semi-permanent hardware placement and close positioning with other components are required. Additionally, the black anodized finish allows for reduced scatter in optical applications.

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Click to Enlarge

• Magnetic Versions of Our Most Popular Bases
• Holds Position of Components During Initial Setup Process
• Relief Cuts in Base Provide Excellent Stability

These anodized aluminum magnetic bases are modeled after our popular standard bases but are enhanced by bottom-mounted rare earth magnets, which provide the ability to temporarily secure components during the setup process. The force from these magnets is strong enough to help prevent accidental movement of components, while still allowing for easy repositioning. The full functionality of these bases can only be achieved when using them on a magnetic table or breadboard; however, they can function as a standard base on non-magnetic surfaces as well.

Each base attaches to a post holder via cap screws that fit within a bottom-located 1/4" (M6) counterbored hole. For final attachment to an optical breadboard, each base features at least one slot for a 1/4-20 (M6) cap screw. The BA1SR provides one 1.10" (27.9 mm) slot and allows for the smallest footprint. For increased stability while maintaining a small footprint, the BA1R provides two 0.81" (20.1 mm) slots. Finally, for the most support, the BA2R features two 1.25" (31.8 mm) slots. In addition, the BA2R comes with four bottom-located M3 counterbored holes for 34 mm rail mounting.

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• Convert Your Existing Post Holders into Universal Post Holder Style Mounts
• 360 Degree Swiveling Base Fastens to Existing Ø1/2" Post Holders via a 1/4"-20 (M6) Cap Screw
• Magnets in Base Hold Position of Components on Breadboard During Initial Setup

Our 360° swivel base adapter fits all standard Ø1/2" post holders with 1/4"-20 (M6) mounting holes and minimizes the amount of time it takes to assemble an optical system. In addition, the swivel design is ideal for applications that require a large number of components to be packed into a small area. When our Ø1/2" post holders are used with the UPHA adapter, the combination is nearly that of our very popular UPH Series of Post Holders. This  anodized aluminum UPHA adapter has the benefit of compatibility with any of our existing Ø1/2" post holders but does not offer the same height flexibility of the UPH series post holders, which allow the post to be lowered all the way to the table.