Simplex Cylinder Selection Guide
Product Line Overview
Wide Variety
Simplex offers the widest selection of cylinder styles, tonnages and strokes to match your specific requests.
Versatile Fixturing
Threaded collars and internal plunger threads withstand full loading for maximum flexibility in fixturing.
Built for Rugged Industrial/Construction Use
All Simplex cylinders meet ANSI/ASME B30.1 SAFETY STANDARDS. Stop rings, plated pistons and heavy duty construction provide trouble free operation and long life.
Piston Blow-Out Protection
All Simplex cylinders (excluding CLP Series) incorporate a positive piston stop to limit piston travel at the end of the stroke, and allows the cylinder to be operated at full stroke. Piston stops add strength and safety to your cylinder.
Standard Design Elements
Cylinders are designed for 10,000 psi(700 bar) operating pressure which offers a smaller footprint and greater force.
Protection from Contamination
Polyurethane wipers clean the rod surface during retraction, protecting the inner cylinder assembly from dirt, moisture and other contaminants.
Product Line Overview
Single Acting
Single acting cylinders are hydraulically driven in one direction. These cylinders are used in many general purpose applications when retract speed is not a requirement. This cylinder type requires a pump source with a single acting valve for proper operation.
Both Spring Return and Load Return cylinders are constructed and operated in a similar manner, but function differently on the return.
- Spring Return cylinders are hydraulically extended, but utilize a spring for retraction assistance.
- Load Return cylinders are hydraulically extended and retracted by the load or other external forces.
- Simplex 3 Way, 3 Position Suc-O-Matic valve can draw hydraulic oil out of any single acting cylinder. In the retract position, the valve generates enough suction to fully retract any single acting load return cylinder automatically.
Double Acting
Double acting cylinders are hydraulically driven in both directions. These cylinders are used in many general purpose applications where retraction speed is required or the mechanical forces required for return is not available. This cylinder type requires a pump source with a 4 way valve for proper operation.
- Oil entering the advance port exerts pressure on the bottom plunger face raising the piston upward and oil on the retract side exits the retract port.
- When oil is pumped into the retract port, it exerts pressure on the top plunger face causing the plunger to retract and oil exits the advance port.
- A safety relief is installed on the retract side of all Simplex double acting cylinders to prevent over-pressurization in the event the retract line has been blocked.
Center Hole
Center hole cylinders are available in both single and double acting styles. These cylinders are primarily used for pushing and pulling applications. Both styles have a center tube that allows a rod or cable to pass through the cylinder and assist in tensioning / pulling applications.
Both single acting and double acting center-hole cylinders are constructed and operated in a similar manner to their standard counterparts
- Single acting center-hole cylinders utilize a spring for retraction. This cylinder type requires a pump source with a 3 way valve for proper operation.
- Double acting center-hole cylinders are hydraulically extended and retracted. This cylinder type requires a pump source with a 4 way valve for proper operation.
| Cylinder Series | Description/Applications | Cylinder Type | Plunger Type | Capacity Tons (kN) | Strokes Inches (mm) |
|---|---|---|---|---|---|
| R | General Purpose Spring Return For Fast Retraction | Single Acting | Solid | 5 - 100 (44,5 - 889,6) | .62 - 14.38 (15,7 - 365,3) |
| RAS | Lightweight, General Purpose Spring Return | 30 - 150 (266,9 - 1334,5) | 2 - 10 (50,8 - 254,0) | ||
| RAL | Lightweight Load Holding Locknut Spring Return | 50 - 150 (444,8 - 1334,5) | 2 - 10 (50,8 - 254,0) | ||
| RLL | Low Profile Locknut | 55 - 575 (496 - 5114) | 1.77 - 1.97 (45 - 50) | ||
| RAC | Lightweight Center Hole Spring Return | Center Hole | 30 - 60 (266,9 - 533,8) | 3 - 6 (76,2 - 152,4) | |
| RACD | Lightweight Center Hole | Double Acting | 30 - 150 (266,9 - 1334,5) | 2 - 10 (50,8 - 254,0) | |
| RLS | Low Height Spring Return | Single Acting | Solid | 10 - 100 (89,0 - 889,6) | 1.5 - 2.25 (38,1 - 57,2) |
| RFS | Very Low Height Spring Return | 5 - 150 (44,5 - 1334,5) | .44 - .62 (11,2 - 15,7) | ||
| RP | Pull Cylinder Spring Return | 2 - 5 (17,8 - 44,5) | 5 - 5.5 (127,0 - 139,7) | ||
| RCL | Mechanical Load Holding / Locknut Load Return | 35 - 250 (303 - 2192) | 2 - 12 (50 - 300) | ||
| RCG | Single Acting Load Return | 55 - 250 (496 - 2192) | 2 - 12 (50 - 300) | ||
| RCX | Single Acting Low Height Load Return | 150 - 575 (1407 - 5114) | 2 - 12 (50 - 300) | ||
| RC | Single Acting Center Hole | Center Hole | 12 - 100 (106,8 - 889,6) | .31 - 6.13 (7,9 - 155,7) | |
| RCD | Double Acting Center Hole | Double Acting | 30 - 646 (266,9 - 5747,1) | 3 - 10 (76,2 - 254,0) | |
| RDP | Double Acting Pull Cylinder | Solid | 10 - 100 (89,0 - 889,6) | 6 (152,4) | |
| RCR | Double Acting Controlled Retraction / Fast Cycling | 55 - 250 (496 - 2192) | 2 - 12 (50 - 300) |