Studio SRP50 ribber fits a vast majority of standard-gauge Singer/Silver/Silver Reed/Studio/Empisal Knitmaster/Riccar knitting machines.

Read about Studio SRP50, Empisal Knitmaster SRP50, Silver SRP50 and Singer SRP50 ribbers (which are the same, just different branding) in the Knitting Machine Encyclopedia. The post below is dedicated to a specific ribber I serviced and tested in my shop.

This Studio SRP50 ribber was tested on Studio by White SK740 standard-gauge knitting machine with punchcard reading capabilities.

I performed the usual cleaning routine: took out all needles, cleaned and inspected each, replaced bent or those with sticky latches; cleaned and serviced the needlebed. I spent a lot of time making sure that the distance between the main and ribber beds is optimum for my knitting. I used very thin and medium-thin yarns. If you use slightly thicker yarns or thinner ones, you might need to adjust the distance. There are a lot of online resources on how to do it.

The correct distance between the beds is one of the most critical aspects of successful knitting.


I cleaned the carriage and cleaned the retaining bar (which is a plastic strip; no sponge).
The ribber will come with all major and most minor accessories.

The missing accessories are:
- close-knit bar. It is a narrow (1 x 910 mm) piece of plastic. According to the forums and even the manual itself, it gets misplaced and lost very often. The same forums mention that it is rarely used – maybe for very fine yarns.
- The “screw driver” did not come with this setup either. I am adding a ratchet tool instead. I used it for all adjustments of the ribber. For some adjustments, a regular flat-head screwdriver might be needed.

- The hard copy of the manual will not be included. But it is available online for free.

I recommend first swatch tests to be on every other needle and/or with a very thin yarn to get to know your machine without worrying about yarn adjustments. This is what I did when I tested this ribber. The knitted fabrics were then converted to hats, a band (made from a swatch) and a neck warmer below.
I knitted on every other needle but used two different combinations to ensure that I knit on ALL needles. Combination one was three needles on the left of the ribber not selected, and combination two was two needles on the left of the ribber not selected. See the video of those tests. The tests on a full bed are also important not only to assess how smooth the carriage runs, how well the needlebed is oiled, but also to ensure that all needles form correct stitches. Check out the video to see that all needles indeed knitted well.
























































































































































