How does a magnetic base hold a dial indicator?

Dial indicators are mounted to the magnetic base by the backing plate or alternatively they can be held by the stem.

Gripped by the stem

A stem mounted dial indicator is mounted to the magnetic base by a collet.
A dial indicator mounted by the stem will be held at the top in a collet.

Dial indicators held in this way will have a flat backing plate.

magnetic base hold a dial indicator

magnetic base hold a dial indicator

Stem collet fitting, tighten to a snug fit
The stem of the dial indicator is inserted into a collet fitting, which fits around the stem and tightens to stop any movement when in use.

Mounted on the backing plate
Dial indicators are mounted by backing plates.
If a dial indicator is mounted by its backing plate, it will have either a lug or screw post back to it. This may be centred or off-centred but the mounting will be the same.

Lug back, adjustment pin

Lug
A dial indicator with a lug back is held to the base by a pin passing through the lug on the backing plate fitting into the attachment on the base.

Screw fitting to secure the dial indicator, backing plate lug
The pin type may vary depending on the manufacturer. On this particular type it is a basic screw fitting to secure the attachment in place.

Screw backing plate fitting to base

Screw post
The screw post backing plate attaches to the base by a threaded end of the base arm, this then is screwed into the post by hand and secures the dial indicator in place.

Collar on the block, slides up and down for positioning, locking screws, block attachment mounts to the base The adjustable plate mounting can be used with magnetic bases, when the location and angle of the dial indicator is in a restricted position and small adjustments need to be made using an hexagon key.

Ultra Hydraulic Universal Magnetic Bases

Ultra Hydraulic Universal Magnetic Bases

Ultra Hydraulic Universal Magnetic Bases, Super Powerful Magnetic Stand, Magnetic Base with Fine Adjustment, Magnetic Base Indicator Holder, Magnetic Stand With Universal Arm, UNIVERSAL CLAMPING MAGNETIC BASE HOLDER for INDICATOR Ultra Hydraulic Universal Magnetic Bases Features: Part No.: HSYW-6CU / HSYW-8CU/ HSYW-8CU-I / HSYW-8CU-II Has On/Off switch Dovetail groove for test indicator Wide variety of models […]

Super Powerful Din Magnetic Stand

Super Powerful Din Magnetic Stand

Super Powerful Din Magnetic Stand, Din Series Magnetic Base Stand, Articulating Magnetic Base, Fine Adjustment Magnetic Base, Magnetic Base Indicator Holder, Magnetic Stand With Universal Arm, Ultra Universal Clamping Magnetic Base with Stem Super Powerful Din Magnetic Stand Features: Part No.: HSF60 / HSF80/ HSF70-MV Wide variety of models available Features fine adjustment Magnetic base […]

Magnetic Indicator Stand w Fine Guide Screw Adjustment

Magnetic Indicator Stand w/ Fine Guide Screw Adjustment

Magnetic Indicator Stand w/ Fine Guide Screw Adjustment, Fine Adjustment Magnetic Base, Magnetic Base Indicator Holder, Multiposition Magnetic Base Stand, Magnetic Base With Flex-O-Post Assembly And Fine-Adjustment Indicator Stands Magnetic Indicator Stand w/ Fine Guide Screw Adjustment Features: Part No.: HSWCZ-8B / HSWCZ-DV/ HSWCZ-6E/6T Has fine guide screw adjustment Magnetic base with 3 V-groove and […]

Fine Adjustment Magnetic Base

Fine Adjustment Magnetic Base

Fine Adjustment Magnetic Base, Dovetail Groove dial holder magnetic base with fine adjustment, dial gauge holder on off magnetic base stand with fine adjustment, Multipositional Magnetic Base with Extra stem Fine Adjustment, Magnetic Base With Flex-O-Post Assembly And Fine-Adjustment Indicator Stands Fine Adjustment Magnetic Base Features: Part No.: HSWCZ-8B / HSWCZ-DV/ HSWCZ-6E/6T Powerful magnet with […]

Magnetic Base with Fine Adjustment

Magnetic Base with Fine Adjustment

Magnetic Base with Fine Adjustment, Magnetic Base Stand w/ One Knob Center Lock and Fine Adjustment, General Magnetic Base Stand, INDICATOR STAND WITH FINE ADJUSTMENT BASE, Magnetic Base Indicator Stand, Mechanical Universal Magnetic Base Holder, Magnetic Base with Coarse and Fine Adjustment Arm Magnetic Base with Fine Adjustment Features: Part No.: HSWCZ-6C / HSWCZ-6CO / HSWCZ-6CL […]

General Magnetic Base Stand

General Magnetic Base Stand Type B

General Magnetic Base Stand Type B, STRONG LOCK MAGNETIC BASE, Universal Stem Magnetic Stand, Adjustable Magnetic Base Indicator Holder with On/Off switch, Multi-Position Magnetic Base FOR Metalworking Tool, MAGNETIC BASE W/ DOVETAIL CLAMP, Magnetic Base Stand w/ One Knob Center Lock and Fine Adjustment General Magnetic Base Stand Type B are widely used in metalworking to hold dial […]