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Magnetic Bases

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Magnetic Bases




  • Rare Earth Magnets Hold Position of Components During Initial Setup
  • Permanent and On/Off Switchable Options Available

Features

  • Permanent Magnetic Bases Secure Components without Screws
  • Versions Available with On/Off Switchable Magnets
  • Temporary Magnetic Bases Prevent Accidental Repositioning During Setup

Thorlabs' permanent and temporary magnetic bases provide an alternative way to secure optical components to magnetic optical tables and breadboards. Our permanent bases provide sufficient magnetic force, 56 – 175 lbs (250 – 778 N), to support components without the use of screws. Two of our permanent bases feature switchable magnets, which can be turned on and off. These bases are only compatible with optical tables and breadboards that are made from a magnetic material, such as stainless steel.

Thorlabs’ selection of temporary magnetic bases allows components to be briefly secured to the table or breadboard during the setup process. The magnets in these bases are strong enough to help prevent accidental repositioning of components, while still allowing for easy adjustment. Once positioning is complete, these bases must be screwed down to be permanently secured to the table. 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.

 

Permanent Magnetic Base

 

  • 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.

 

Permanent, Switchable, Heavy-Duty Magnetic Base

 

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

 

Permanent, Lockable, Compact Magnetic Base

 

  • 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" Posts, Ø1" Posts, or Ø1/2" 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.

 

Permanent, Lockable Magnetic Base

 

  • ON/OFF Hex Key Switches for Easy Assembly
  • Vertical Holding Force: 33.7 or 67.4 lb (150 or 300 N)
  • Horizontal/Sideways Holding Force: 11.2 or 22.5 lb (50 or 100 N)
  • Array of 25 1/4"-20 (M6) Mounting Holes
  • Ideal for Use with No-Holes Breadboards

The MBM series Magnetic Base is a compact, switchable (i.e., the magnet can be turned on and off) magnetic breadboard that allows the user to mount optics and instruments rigidly in a setup. The switchable magnetic design provides placement flexibility within the experiment, and the twin magnets are sufficiently strong to securely hold the base in place without needing to clamp it to an optical table. The full magnetic force of 67.4 lb (300 N) can be switched on by turning both of the 3/16" (M5) switching screws counterclockwise 90°. A reduced force of 33.7 lb (150 N) can be applied by turning on just one of the switches.

These bases are ideal for applications where semi-permanent hardware placement and close positioning with other components are required. Each base has an array of 25 1/4"-20 (M6) tapped holes and provides the same mounting functionality as an optical breadboard. The footprint measures 112 mm x 112 mm (4.4" x 4.4"), for compatibility with our NanoMax 3-axis stages and is large enough to allow a complete subassembly to be removed from the setup. They are also ideal for providing a fixed mounting surface to a breadboard without holes and for use with our range of kinematic bases. Additionally, the black anodized finish reduces scatter in optical applications.

 

Magnetic Bases

 

  • 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.

 

Swivel Base Adapter

 

  • 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 Universal 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.

ABOUT US

Our Mission is to accelerate the advancement of optical technology for precision measurements and their applications from the table tops of research laboratories to standard use in communication and high technology industries. Our aim is to serve our customers. Our hope is to create a place for highly skilled people in an open environment

contact us

Tel               +966 35823441
Fax               +966 35823441
Egypt Mobile  +2 0120 7577664
KSA Mobile     +966 545 991188
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