portafilter cradles

 

Something Different

Everyone has their own technique for grinding coffee. Some take the basket out of the portafilter and grind directly into it, others use yogurt cups and stir vigorously, and some even whack their portfilters on the counter to settle the grounds. We’re not going to tell you what to do, but we’d like to offer you an alternative.
Designed as an optional accessory for the HG one grinder, our portafilter cradle is both a convenient dosing (especially when using our blind tumbler) and tamping stand.

 

Build Quality

Weighing in at a little over a pound, each base is CNC machined out of solid billet aluminum. First treated with a sand blasted finish designed to be smudge resistant, the surface is then anodized in a hard wearing black demi-gloss finish.

PF cradles in raw aluminum

 

Delrin Collar

Delrin, a hard wearing plastic which can be machined in the same way as metal and also has the same tensile strength as aluminum, is used to prevent any metal on metal contact. A milled to fit Delrin collar is securely fastened to the cradle to protect the portafilter.

Delrin Collar

 

Adjustablity

The portafilter handle is designed to rest on top of our adjustable slip resistant rubber coated knob. By rotating the knob on a M10 set screw, the height of the knob can be raised or lowered. We’ve included both a 20mm and 25mm M10 to accommodate various diameter portafilter handles. The knob assembly is fixed into place by an additional hex set screw recessed into the base of the cradle.

adjustment knob

 

Matching my portafilter

We currently offer two sizes of Portafilter Cradles designed for 49mm and E61 portafilters.

To accommodate the two portafilter sizes we manufacture two separate sets of bases and collars. In the very near future we will be offering additional Delrin collars to accommodate a larger variety of portafilters which will be compatible with either one of the current base sizes. Please follow this link to submit your request.

Portafilters are measured by standard basket sizes and not by the outside diameter (OD) of the outside walls of the portafilter. Adding to the confusion is the fact basket sizes are nominal sizes which don’t correspond to exact dimensions. And finally between various manufacturers, the OD of portafilters that use the same basket size are invariably different.

So what does that mean to me?

Check the list below. If your machine or make is on the list, chances are your portafilter is compatible.

49mm portafilter*

  • Olympia Cremina
  • La Pavoni PC-16 & Europiccola (pre-Millennium)
  • Elektra Microcasa

E61 (58mm) portafilter**

  • Various commercial machines

Next verify your portafilter against our dimensions. Our Cradles work by supporting the portafilters under the ears which rest on top of the cradle’s Delrin collar. You will need to measure the OD of the outside wall of your portafilter.

One method is tracing an outline of the portafilter a piece of paper and then using a ruler to measure the diameter. Another is to buy an inexpensive pair of digital calipers which will come in handy for tasks other than measuring kitchen appliances. Trust me, digital calipers are extremely handy to have around the house. Once you have your measurements, compare them against the dimensions below.

The following are the inside diameter (ID) collar sizes for our Portafilter Cradles:

  • 49mm Portafilter Cradle: 58.42mm or 2.3”
  • E61 Portafilter Cradle: 75.15mm or 2.959”

The outside diameter (OD) of your portafilter needs to fit within the inside diameter (ID) of our Poratfilter Cradle collar.

The following illustration shows the relative OD / ID of the collar and portafilter.

OD of portafilter must fit within the ID of the collar

Please follow these links to the 49mm and E61 product measurements. There are hundreds of different makes and models of portafilters and while we’ve tried to build a product that fits as many types as we could, there are some that simply will not work.

If you have any questions please contact us before ordering and we’d be happy to assist you.

*Successfully tested with stock Olympia Cremina double spout PF, Richard Penney naked PF.

**Successfully tested with Rancillio Silvia V3 double spout PF, Rancillio bottomless PF. UNSUCCESSFUL with La Marzocco GS/3 double spout (discussion to come).