Construction: MGZR Series MGZR Component Parts No. 1 2 3 4 5 6 7 8 9 10 11 12 Description Aluminum alloy Aluminum alloy Aluminum alloy Aluminum alloy Carbon steel Carbon steel Aluminum alloy Aluminum alloy Carbon steel Carbon steel Chrome molybdenum steel Rod cover Head cover Cylinder tube Piston rod Tube rod Tube rod cover Piston Stationary piston Bushing Tie-rod Tie-rod nut Hexagon socket head screw Material Note Clear anodized Clear anodized Hard anodized Hard anodized Hard chromium electroplated Electroless nickel plated Chromated Chromated Corrosion resistant chromated Nickel plated Zinc trivalent chromated No. 13 14 15 16 17 18 19 20 21 22 23 Description Spring washer Bumper Wear ring Rod seal A Rod seal B Piston seal Piston gasket Tube rod gasket Cylinder tube gasket Magnet Coil scraper Steel wire Urethane rubber Resin NBR NBR NBR NBR NBR NBR . Metal Zinc trivalent chromated Material Note . . y !6 q o !8i r t !4 @0 !7 e u @2 !5 @1 !9 w !3 !2 !0 !1 @3 !4 !9 Replacement Parts/Seal Kit Bore size (mm) MGZ20-PS MGZ25-PS MGZ32-PS MGZ40-PS MGZ50-PS MGZ63-PS MGZ80-PS 20 25 32 40 50 63 80 Kit no. Contents Items !6 and @1 from the above chart o20, o25 . Seal kits consist of items !6 and @1, and can be ordered by using the seal kit number corresponding to each bore size. . Seal kit includes a grease pack (o20 to o50: 10 g, o63, 80: 20 g). Order with the following part number when only the grease pack is needed. Grease pack part no.: GR-S-010 (10 g), GR-S-020 (20 g) 542