Machine Stroke and How It Affects Sanding and Polishing Performance

[Kevin Brown]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

Also have in a PDF.

Easier to read but it's bout 3.6 megabytes, so e-mail me and I'll fire off a copy to you! iamwaxman@aol.com

[rapport25]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

Also have in a PDF.

Easier to read but it's bout 3.6 megabytes, so e-mail me and I'll fire off a copy to you! iamwaxman@aol.com

Kevin you have mail.

Many Thanks Simon

[Kevin Brown]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

Kevin you have mail.

Many Thanks Simon

On the way... happy reading.

[rapport25]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

On the way... happy reading.

[sontakke]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

I guess the hell has finally frozen over!! :-)

[Kevin Brown]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

I guess the hell has finally frozen over!! :-)

[ShinyChevy]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

Thanks Kevin, great article as usual!

Could you post, or tell us where to find, the stroke lengths of various DA sander/polishers such as as the PC, G110, UDM, large and small air DAs and the Flex DA?

Thanks again!

[Kevin Brown]

Re: Machine Stroke and How It Affects Sanding and Polishing Performance

...Could you post, or tell us where to find, the stroke lengths of various DA sander/polishers such as as the PC, G110, UDM, large and small air DAs and the Flex DA?...

Well, most of the machines list their stroke, orbit, or offset measurements.
The major players in the air-tool business generally offer their machines in 3/32", 3/16", and 5/16" diameter orbit.

Here's a list of some of the most popular 5" & 6" electric-powered machines.
"RO"=random orbital, "FRO"=forced rotation orbital, and a machine listed as both is switchable between the two.

1/8" stroke diameter
(RO) Griot's 10925 (original machine) - 1/8" stroke diameter (not verified and not likely that small)


7/32" stroke diameter
(RO/FRO) Makita BO6040


9/64" stroke diameter
(RO/FRO) Festool Rotex RO125 FEQ


3/16" stroke diameter
(RO) DeWalt DW443

(RO/FRO) Bosch 1250 DEVS (specs list 3/32" offset)
(RO/FRO) Festool Rotex RO150 FEQ


5/16" stroke diameter
(RO) Meguiar's G100
(RO) Meguiar's G110
(RO) Meguiar's G110v2
(RO) Porter Cable 7335
(RO) Porter Cable 7336
(RO) Porter Cable 7424
(RO) Porter Cable 7424XP
(RO) Griot's 10765 (new machine)

(FRO) Flex XC 3401 VRG

(RO/FRO) Festool Rotex RO125 FEQ
(RO/FRO) Festool Rotex RO150 FEQ


3/4" stroke diameter
(RO) Dynabrade 61374 (attachment for rotary buffer)
(RO/FRO) Dynabrade 61379/61384 (attachment for rotary buffer)