Saf Natura Extractor

Saf Natura Ritmo

Saf Natura Ritmo

This is a review of a 9 frame radial motorised Saf Natura Ritmo extractor, prompted by a recent discussion on the SBAi forum and the absence of many other reviews when I was researching the purchase. I hope it’s useful to others thinking of purchasing a machine.

Extractors are probably the single most expensive item purchased by the majority of beekeepers. Actually, that should have started “an extractor” because a well-chosen machine that suits your beekeeping should last a very long time. Try before you buy … borrow one from another beekeeper or, if your association owns one or more, book or hire one for a weekend to see how it suits your beekeeping needs. If your association is reasonably large it’s likely that demand will be high as the OSR finishes – honey must be extracted promptly or it will crystallise in the comb. Be prepared. Book the machine in good time and keep the removed supers warm to make extraction easier.

You may not need to buy an extractor at all. Many don’t. If you’re flexible about when you can extract, or well organised, you might be able to share with friends or use the association machine(s). I’m certainly not well organised and often have to fit extraction around inflexible work commitments …

Extractor size – 3, 4, 9, 18 frame?

This is my second machine … the first being a 4-frame Lega manual tangential model which, although excellent quality, was simply too small for the number of colonies (~10) I now have. Small or large extractors (in terms of number of frames) take about the same time to extract the honey per spin, so buy a larger model if you want to spend less time extracting. This has been extensively discussed elsewhere. Since I extract twice per year (OSR and late summer) from about 18-24 supers (~200+ frames each time) and don’t intend to scale up I’ve decided a 9 frame extractor will suit me for the foreseeable future. Famous last words.

Manual (hand cranked) or motorised?

Charles Atlas

Charles Atlas …

Motorised. End of discussion. Seriously. Unless you’re built like Charles Atlas, or want to be, I would strongly recommend a motorised extractor if you’re considering a 9 frame or larger model. My manual tangential model was hard work after a couple of dozen frames. 200 would have been purgatory. Remember that if you’re handling 20 or so supers you will already be moving about 1000 lb. of boxes around, before you start extracting, often in a warm room. For the model I discuss below the price differential between the manual and motorised version is about £280. I think this is a good investment. You can often retro-fit motors to manual models, but I have no experience of this.

Why a Saf Natura extractor?

After outgrowing my manual four frame tangential extractor I’d borrowed a polythene-barreled radial 9 frame motorised Thorne’s extractor from our association. I was convinced about the capacity and the motor but disappointed about the signs of wear on the polythene barrel. The machine had been used pretty hard by the association and would have become increasingly difficult to properly clean, so I wanted a stainless steel machine. All the standard suppliers sell these, at prices – for a 9 frame radial model – ranging from about £600 to £1600. The Thorne’s polythene-barreled model has a list price of approaching £800. I looked carefully Abelo extractors on show at the Yorkshire Beekeepers Association Spring meeting. Abelo sell 8 frame tangential and 12 frame radial models, but there were some rough edges on the stainless steel barrel of the model I inspected which put me off. I finally purchased a Saf Natura Ritmo extractor from Bee Equipped in Derbyshire. It was close enough to collect, so I wasn’t committed to purchasing until I’d checked the quality.

Ritmo motorised radial extractor

Manual motor

Manual motor …

The Saf Natura website provides details of this model. It is 52.5 cm in diameter and – once the bent angle coated steel legs are assembled and attached – stands 102 cm high at the top of the closed lid. The motor extends the height a further 12 cm. Note that the model illustrated on the Bee Equipped and the Saf Natura websites both show what is variously termed a Saf Natura motor, or – I think – a digital motor. These have an additional control box on the side, presumably controlling time of spin etc. Bee Equipped only sell this extractor model with a more basic manually controlled motor as shown in the images here. I presume this helps keeps the price down to a very attractive £620.

Resin cage

Resin cage …

The other clear cost-saving is the cage for the frames. In this model the top and bottom sections are moulded out of some sort of plastic or resin, rather than being constructed from stainless steel. The top and bottom sections are joined by stainless steel rods. The honey gate is also plastic. Half of the perspex (?) lid hinges up to add and remove frames for extraction, in doing so the motor safety cut-out (red and black in the image on the right) is engaged. The overall quality, rigidity and finish of the stainless steel is excellent. It looks and feels like a solid, well made, machine that should last a long time. I use Nationals and the extractor I purchased was set up for this frame size. By using longer stainless steel rods holding the resin cages apart it is possible to use Langstroth frames in the same model. I also purchased three mesh frames for tangential extraction from brood frames (deeps). Unfortunately these are only supplied in Langstroth dimensions so will need some minor butchering before being suitable for National frames (I’ll describe this later if I ever get round to it … the tangential meshes were only £25 for three and I didn’t want to have to pay postage at a later date).

In use …

It works well. The motor makes the expected whining noise as it speeds up or slows down. It sounds strained but I’ve heard exactly the same thing with other extractors and you soon get used to it. Full speed is amply fast enough to clear filled supers, even of viscous OSR honey. There’s nothing to stop you opening the lid or slamming the machine into reverse when it’s going full speed ahead … other than common sense and a small adhesive label stuck on the lid. I’ve not tried and I suggest you don’t either. As with all extractors it wobbles with an uneven load. I’m going to investigate castors or foam blocks under the legs. However, if the wobble is bad enough it’s worth rearranging the frames to sort the problem, rather than simply hanging on for dear life as it dances around the room. The worst wobble I’ve experienced, which got progressively worse as the length of spin increased, was due to my forgetting to uncap one side of one frame … D’oh! Crystallised OSR honey in part of a frame often causes problems for similar reasons.

I run the machine with the honey gate open, directly filtering the honey through coarse and fine stainless steel filters above a 30 lb. honey bucket. As long as you keep a careful eye on the level of honey in the bucket this method works well. A contributor to the SBAi discussion commented on the relatively short distance between the bottom of the barrel and the cage, causing the long frame lugs on National supers to foul the accumulated honey. This is avoided by leaving the gate open.

I’ve only had the machine for a season so cannot comment on longevity, spares etc. Dot at Bee Equipped told me they’ve been selling this model for at least a decade with no significant problems, other than some models damaged in transit. Redesigned or stronger boxes appear to have sorted this problem out.

In conclusion … highly recommended.

Note that many suppliers aggressively discount extractors in the spring shows (BeeTradex or the BBKA convention) and that the very worst time to buy an extractor is at the end of the summer 😉

Full speed ahead …

5 thoughts on “Saf Natura Extractor

    1. dje Post author

      You’re welcome Emily … I’m surprised by the lack of reviews of these one-off expensive items in comparison with the coverage of, say, polystyrene hives. Possibly it’s because a smaller proportion of beekeepers invest in their own machines. However, a lot are sold at the conventions where there may be limited opportunity (or good enough lighting!) to make a thorough inspection. Extractors should last a long time and retain their value well, so it’s worth taking care to choose well.

      1. Emily

        Yes. A lot of beekeepers I know don’t own their own extractor but borrow the local association’s one for a week each year. It’s nice to have your own one though.

  1. David

    Hi David,
    Extractors originally designed for use with Langstroth frames (short lug) often come with the cage configured for short lugs. I have found they can usually be moved to a higher position on the spindle which stops the long lugs dragging in the honey and whipping more air into it.
    I have fitted castors to my extractor. It doesn’t stop the vibrations from an unbalanced load but does reduce the wear on the frame and the bearings. The unit moves around the extraction room under it’s own power!
    I have just extracted honey at 16.5% moisture content. It was toffee like even after warming and needed 30mins flat out to clear the frames. Definitely not a job for a manual extractor!

    1. David Post author

      Hi David
      I’ll have to look at the cage position but am happy running it with the gate open. If it’s reasonably warm (and not too many frames have self-destructed) I run it directly through a coarse filter into buckets. By the time the spin is complete I’ve decapped most of the next super of frames (or the next 4 supers if it was taking 30 minutes per spin!). The only thing I need to remember to do is keep an eye on the level in the bucket. To catch the inevitable drips and to avoid catastrophe if the bucket overflows I’ve got a plastic storage crate with one side cutout to put the bucket in … it’s a convenient way to also balance the filter.
      Castors are on the list of things to do. One of many. The legs are drilled with suitable holes. It will also make moving the extractor easier – no more manual lifting with the inevitable dings out of doors and walls from the projecting legs.
      Cheers
      David

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