pecifications 1.Mattress Fatigue Tester is used to simulate human motion to assess the durability of the mattress. 2.OEM 1.The usage  Mattress Fatigue Tester HD-F763 Using a horizontal hexagonal wooden drum roll or cylinder (both ends of the diameter of 250 mm, the middle part of the 300 mm, rolling back and forth on the mattress , simulate human motion to assess the durability of the mattress.   2.Function and features:  Mattress Fatigue Tester HD- Weight of hexagonal wood barrel 109kg, Cylinder weight:140kg Maximum size of mattress 2.3m�2.5m (optional) Machine size(L�W�H) 2500mm�2800mm�2200mm  Power 380V, 1.5kw According to different mattress to adjust the rolling stroke(adjust the limit switch position) low coefficient of friction guide, ensure full drum weight on the mattress. The text display provides easy control and setting. 3.The main components: 1.Motor: Taiwan's Teco Motor with reducer of Italy 2. Speed adjustment: Taiwan's "Ed Force" drive 3. Guide bearing: Import from Japan. 4. Rack: aluminum body and steel 5. Control elements: Imported.