Hand Operated Centrifuge Machine Centrifuge Machine Hand Operated withA 4 test by labpro A rugged hand-driven centrifuge consisting of die-cast metal parts and a steel pinion and worm drive. The centrifuge has 4 buckets that take 15ml glass or plastic tubes. Integral screw clamp for fixing to a bench can be easily dismantled for storage plated metal head scratch-resistant epoxy coated body includes 4 buckets to take 15ml centrifuge glass or plastic tubes.