Four Column Automatic Compression Testing Machines Product Code Product Description PRS-B5231 2000 kN Automatic Four Column Compression Testing Machine EN 220-240 V 50-60 Hz PRS-B5331 3000 kN Automatic Four Column Compression Testing Machine EN 220-240 V 50-60 Hz PRS-B5431 4000 kN Automatic Four Column Compression Testing Machine EN 220-240 V 50-60 Hz PRS-B5531 5000 kN Automatic Four Column Compression Testing Machine EN 220-240 V 50-60 Hz PRS-B0210 High Precision Pressure Transducer and Electronic PRS-B5231 and PRS-B5331 Testing Machine is supplied complete with; Ã? 205x90 mm, Ã? 205x50 mm and Ã? 205x30 mm distance pieces PRS-B4513 Upper Platen (with ball seating assembly) Ã?300 mm, Lower Platen Ã?300 mm. PRS-B4510, PRS-B4511, PRS-B4512 and PRS-B4515 upper and lower platen sets can also be used with PRS-B5231 and PRS-B5331 testing machines. PRS-B5431 and PRS-B5531 Compression Testing Machines are supplied complete with; 2 pcs. Ã? 205x90 mm, 2 pcs. Ã? 205x50 mm and 2 pcs. Ã? 205x30 mm distance pieces PRS-B4513 Upper Platen (with ball seating assembly) Ã?300 mm, Lower Platen Ã?300 mm. PRS-B4510, PRS-4511, PRS-B4512 and PRS-B4515 upper and lower platen sets can also be used with PRS-B4531 and PRS-B5531 Testing Machines