Universal Sand Strength Machine for Determining The Green & dry Bond Strength Of Moulding & Core Sand (Hand Driven & Moto Driven) For Determining Green & Dry Permeability Of Moulding Sand & core Sand With Accessories. Sand Permeability Tester ‘Risdale’ Type Sand Rammer ‘Risdale’ Type Rapid Sand Washer Lab. Sand Mill Cum Mixture Roller Type Lab. Sand Mixture Cap