Thank you to Matt in C-town for the following write-up. We really appreciate the time and effort that went into this. It’s an excellent retrofit. Thanks again Matt!
Penn State DC2 from Matt in C-town
Conversion to a Wynn 35A274BLOL cartridge filter
I have been using this unit for several years with the supplied 5 micron felt bags as a roll around collector. I have recently begun the project of renovating my shop. Part of this renovation is to enclose my collector (for noise reduction) and make it into a central system. This was the natural time to shoot for better filtration and additional efficiency. Wynn’s 35A conversion kit fit the bill perfectly for these improvements with more than double the surface area and half the cost of other brands.
After looking through the different application notes on Wynn’s site I settled on George D’s retrofit with some slight modifications (Thanks George!).
Using 3/4″ MDF, I roughed out a circle on the bandsaw and finished it with a circle guide on my router so that it was slightly larger than my collector’s intake housing (20 1/4″ diameter). I then set the circle guide to cut a 1/2″ deep rabbit edge on the circle to fit inside the intake housing (19 9/16″ diameter). Once the outside diameter work was done, I cut out the inner circle with a jigsaw (12 7/16″ diameter).
Next I created (5) clips out of brass shim stock.
Once the clips were done I could hang them on the bottom edge of the filter and layout out the positions for the (1/4″-20 x 7/16″-14) thread inserts.
At this point, I ran a bead of silicone caulk at the inside corner of the rabbit on the MDF donut and placed it on the intake housing. After throwing a couple of clamps on, I pre-drilled and attached the donut with (5) sheet metal screws. Then I placed the filter on the donut and screwed it down with 1/2″ long 1/4″-20 cap screws, lock washers & washers.
All that was left was to hang the supplied 4 mil poly bag and attach the assembly to the blower unit.
Do you like my upside down dust collector?
In conclusion, I do feel that there is a significant increase in airflow generated by my system based on some standard operations I perform in my shop. My jointer no longer clogs the hose and there are no more retained chips in my tablesaw cabinet. I will say that after researching cartridge filters, Wynn Environmental is the best source in both performance and price ‘hands down’!
Matt in C-town — Cleveland, Ohio