K-Type Cylinders | NFPA 4MAJ Series Rod Lock Option - 1-1/2" to 5" Bore Sizes | Tie Rod Cylinders | Pneumatic Actuators
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To determine dimensions for a double rod end cylinder, first refer to the desired 4MA small bore single rod mounting style. After selecting the necessary dimensions, return to this page and supplement the single rod end dimensions with those shown in the table below. Please note that double rod end cylinders have a head dimension G at both ends, and that LG replaces LF, PK replaces P, etc. The double rod end dimensions differ from, or are in addition to, those for single rod cylinders. When a double rod end cylinder has two different rod ends, please clearly state which rod end is to be available at which head end.
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K-type for 1-1/2" to 5" Bore
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K-Type Dimensions
| Bore Size |
Rod # | Rod Dia. MM | EE (NPTF) |
G | K2 | WF | Y |
LG (replaces LF) |
PK (replaces P) |
SAK (replaces SA) |
XAK (replaces XA) |
SSK (replaces SS) |
SNK (replaces SN) |
SEK (replaces SE) |
XEK (replaces XE) |
ZM (Add 2X Stroke) |
| 1-1/2 | 1 | 5/8 | 3/8 | 1.438 | 0.250 | 1.000 | 4.500 | 6.750 | 2.375 | 8.750 | 8.750 | 3.375 | 2.250 | 9.000 | 8.875 | 8.750 |
| 2 | 1 | 5/8 | 3/8 | 1.375 | 0.313 | 1.000 | 4.750 | 7.000 | 2.375 | 9.000 | 9.000 | 3.375 | 2.250 | 9.625 | 9.313 | 9.000 |
| 2 | 3 | 1 | 3/8 | 1.375 | 0.313 | 1.375 | 6.125 | 8.000 | 2.375 | 10.000 | 10.375 | 3.375 | 2.250 | 10.625 | 10.688 | 10.750 |
| 2-1/2 | 1 | 5/8 | 3/8 | 1.344 | 0.313 | 1.000 | 4.813 | 7.125 | 2.375 | 9.125 | 9.125 | 3.500 | 2.375 | 10.000 | 9.563 | 9.125 |
| 2-1/2 | 3 | 1 | 3/8 | 1.344 | 0.313 | 1.375 | 6.313 | 8.250 | 2.375 | 10.250 | 10.625 | 3.500 | 2.375 | 11.125 | 11.063 | 11.000 |
| 3-1/4 | 1 | 1 | 1/2 | 1.594 | 0.375 | 1.375 | 6.938 | 9.250 | 2.625 | 11.750 | 11.875 | 3.750 | 2.625 | 12.250 | 12.125 | 12.000 |
| 3-1/4 | 3 | 1-3/8 | 1/2 | 1.594 | 0.375 | 1.625 | 7.563 | 9.625 | 2.625 | 12.125 | 12.500 | 3.750 | 2.625 | 12.625 | 12.750 | 12.875 |
| 4 | 1 | 1 | 1/2 | 1.594 | 0.375 | 1.375 | 7.313 | 9.625 | 2.625 | 12.125 | 12.250 | 3.750 | 2.625 | 12.875 | 12.625 | 12.375 |
| 4 | 3 | 1-3/8 | 1/2 | 1.594 | 0.375 | 1.625 | 7.813 | 9.875 | 2.625 | 12.375 | 12.750 | 3.750 | 2.625 | 13.125 | 13.125 | 13.125 |
| 5 | 1 | 1 | 1/2 | 1.594 | 0.500 | 1.375 | 7.813 | 10.313 | 2.813 | 13.063 | 13.063 | 3.563 | 2.813 | - | - | 13.063 |
| 5 | 3 | 1-3/8 | 1/2 | 1.594 | 0.500 | 1.625 | 8.438 | 10.688 | 2.813 | 13.438 | 13.688 | 3.563 | 2.813 | - | - | 13.938 |
Mounting Styles - Dimensions (Small Bore, Up to 5"):
Available Pneumatic Cylinder Styles
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Tie Rod Cylinders |  |
Guided Cylinders |
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Round Body Cylinders |  |
Rodless Cylinders |
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Compact Cylinders |
Engineering & Product Selection Information
Pneumatic Product Selection
- Pneumatic Actuators & Air Cylinders
- Pneumatic Cylinders
- Automation Products: rotary actuators, grippers, slide tables, rotary tables, escapement
- Actuator Accessories: Linear alignment couplers, flow controls, air oil tanks, rodlocks, electronic sensors, shock absorbers
Application Engineering Data
- Operating Principles and Construction
- Fluids and Temperature
- Push and Pull Forces
- Mounting Information
- Ports
- Tie Rod Supports, Stroke Data & Stroke Adjusters
- Mounting Classes
- Stop Tubing
- Stroke Selection Chart
- Deceleration Force and Air Requirements
- Cushion Ratings and Air Requirements
- NFPA Rod End Data and Piston Rods
- Modifications, Special Assemblies, Tandem Cylinders, Duplex Cylinders
- Rotary Actuator Torque Requirements
- Rotary Actuator Basic Equations
- Conversion Factors
WARNING: These products can expose you to chemicals including lead and/or DEHP and/or carbon black, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov