Get yourself one of these. I got this out of a scrap pile at a local farm, £50 for a new valve and a lick of paint good as new . Easy enough to make if your handy with a welder too, hydraulic ram and valve, a few hydraulic hoses,old rsj and a few off cut bits of steel. Should be less than £150 to do, well worth it if you burn a lot of wood and you have access to a tractor
Or cut the logs into shorter pieces, should split easier.