|  | M SERIES Hydraulic Cylinders 
                      
                        
                          |  | Compact and lightweight style hydraulic cylinders with closed centers. |  
 Special Features 
                      
                        Compact and lightweight desing (less mass and moment of inertia) Built-in safety pressure relief valves Optional coolant or air thru models Built-in safety check valves Stroke sensor switches Low maintenance
 Specifications 
                      
                        
                          | Model | Unit | M-1120RA | M-1120RB | M-1120RC | M-1121RA | M-1121RB | M-1221RC |  
                          | Piston Stroke | in. | 0.787 | 0.787 | 0.787 | 0.827 | 0.827 | 0.827 |  
                          | Piston Area Pull Side | in.2 | 13.5 | 13.5 | 13.5 | 16.3 | 16.3 | 16.3 |  
                          | Piston Area Push Side | in.2 | 13.0 | 13.0 | 13.0 | 15.8 | 15.8 | 15.8 |  
                          | Max. Draw Bar Pull Side | lbs | 6069 | 6069 | 6069 | 8542 | 8542 | 8542 |  
                          | Max. Operation Pressure | psi | 507 | 507 | 507 | 580 | 580 | 580 |  
                          | Max. Speed | rpm | 6000 | 6000 | 6000 | 6000 | 6000 | 6000 |  
                          | GD2 | lbs. • ft2 | 1.4 | 1.4 | 1.4 | 2.6 | 2.6 | 2.6 |  
                          | Net Weight | lbs | 18 | 18 | 18 | 22 | 23 | 22 |  
                          | Oil Leakage Rate* | gal./min. | 0.3 | 0.3 | 03 | 0.3 | 0.3 | 0.3 |  *oil leakage rate is based on operating pressure of 435 psi at oil temperature of 122¼ F.  
 Dimensional Drawings M...RA Type (Air)  
 M...RB Type (Coolant)  
 M...RC Typec (Non-Coolant)  
 
                      
                        
                          | Model | M-1120RA | M-1120RB | M-1120RC | M-1121RA | M-1121RB | M-1120RA |  
                          | A | 4.331 | 4.331 | 4.331 | 4.724 | 4.724 | 4.724 |  
                          | B | 0.787 | 0.787 | 0.787 | 0.827 | 0.827 | 0.827 |  
                          | C | 5.709 | 5.709 | 5.709 | 6.614 | 6.614 | 6.614 |  
                          | D | 5.039 | 5.039 | 5.039 | 5.709 | 5.709 | 5.709 |  
                          | E | 1.654 | 1.654 | 1.654 | 1.654 | 1.654 | 1.654 |  
                          | F | 1.181 | 1.181 | 1.181 | 1.181 | 1.181 | 1.181 |  
                          | G | 0.866 | 0.866 | 0.866 | 0.866 | 0.866 | 0.866 |  
                          | H | M20X2.5 | M20X2.5 | M20X2.5 | M20X2.5 | M20X2.5 | M20X2.5 |  
                          | J | 1.181 | 1.181 | 1.181 | 1.181 | 1.181 | 1.181 |  
                          | K | 0.591 | 0.591 | 0.591 | 0.591 | 0.591 | 0.591 |  
                          | L | 5.315 | 6.890 | 5.315 | 5.315 | 6.890 | 5.315 |  
                          | M | 4.921 | 4.921 | 4.921 | 4.921 | 4.921 | 4.921 |  
                          | N | 0.551 | 0.551 | 0.551 | 0.669 | 0.669 | 0.669 |  
                          | O | 2.362 | 2.362 | 2.362 | 2.362 | 2.362 | 2.362 |  
                          | P max | 1.575 | 1.575 | 1.575 | 1.535 | 1.535 | 1.535 |  
                          | P min. | 2.362 | 2.362 | 2.362 | 2.362 | 2.362 | 2.362 |  
                          | Q max | 2.835 | 2.835 | 2.835 | 2.835 | 2.835 | 2.835 |  
                          | Q min. | 2.047 | 2.047 | 2.047 | 2.047 | 2.047 | 2.047 |  
                          | R. | 1.024 | 1.024 | 1.024 | 1.063 | 1.063 | 1.063 |  
                          | S | 6.189 | 6.189 | 6.189 | 7.094 | 7.094 | 7.094 |  
                          | T | M8X1.25 | M8X1.25 | M8X1.25 | M10X1.5 | M10X1.5 | M10X1.5 |  
                          | U | 0.551 | 0.551 | 0.551 | 0.669 | 0.669 | 0.669 |  
                          | V |  | 4.095 |  |  | 4.095 |  |  |