Hi and welcome,
You said you're trying to decide on a new bandsaw, but personally I would look at the secondhand market as well. There can be bargains to be had and a lot of older machines perform significantly better than the new machine of the same price.
In terms of the "general purpose" bandsaws, you might be able to pick up one of the smaller Wadkin-Bursgreen machines, such as the 20" BZB (fabricated in steel) or the cast iron 24" BZB. There are also the Startrite 351 and
352 machines which may be suitable. Prices could range from around £200 to £500+ depending on condition, market demand, etc.
New machines offering suitable depth of cut appear to start around the £800 mark with the Hammer N4400, and Axminster's plus series coming in a little bit dearer. It would also be worth considering the larger Jet machines and possibly the current Startrite range.
Depth of cut will be your prime consideration; the ability to track and tension a wide blade is also useful for this type of work (narrower blades will generally not create such a flat cut surface as wider blades). A sturdy and generously sized rip fence will be essential. Also consider the motor power. Around 2HP for a 10" cut seems to work well in my (limited) experience, though less power will still get the job done, just a bit slower.
If you intend to use the machine
only for converting logs to planks or resawing planks, you could also look at dedicated resaws, such as Wadkin's PBR or PBR/HD, which will be more expensive and larger, but offer more power and the ability to use a wider blade.
The
Startrite 440R looks like an interesting compromise between the versatility of a `normal' bandsaw and the resaw ability of a dedicated unit. However it would be a significant investment!
When I've converted logs on my bandsaw, I did it using a 1.3TPI blade from
Dragon Saws and was impressed with its performance.
To address your question "should i look for alternatives," I would say there are two possible alternatives. Firstly, if you have a chainsaw, you could make or buy a
ripping frame for it, which will enable you to plank logs that way. The finish is not much worse than bandsawn, but the kerf, at about 10mm, will waste a significant amount of timber, plus it is noisy and tiring work.
The other alternative would be, if this is once off or occasional, see if any local sawmills would plank the logs on their industrial equipment for you. It may work out cheaper that way but of course you'd have to transport the logs, and you don't end up with a tool of your own at the end of it.
Cheers,
Neil