Airtac SCJ100 Standard Cylinder SCJ100X275-50
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X275-50 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø100mm bore, 275mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke275 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X275-50
The SCJ100X275-50 is a double-acting, single-rod pneumatic cylinder with a rear-cap adjusting screw that provides up to 50 mm of field-adjustable stroke-end control, letting you dial in the exact stopping position without swapping the cylinder. With a 100 mm bore and 25 mm piston rod, it delivers 3927 N of push force at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa.
This tie-rod cylinder uses a PT1/2 port and an M20x1.5 rod thread, with a 29 mm air cushion at each end for smooth deceleration. The body length A(SCJ) is 245 mm, and the nominal 275 mm stroke is well within the 1500 mm maximum standard stroke for this bore. The adjustable stroke end is ideal for commissioning trials, format changeovers, or taking up mechanical wear without adding external hard stops.
Airtac SCJ100 Standard Cylinder SCJ100X275-50 Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X275-50 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 275 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 29 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
Model Code: Airtac SCJ100 Standard Cylinder SCJ100X275-50
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | Nominal (maximum) stroke length in mm. |
| -50 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
Where the Airtac SCJ100 Standard Cylinder SCJ100X275-50 Is Used
Commissioning & Setup
Technicians can fine-tune the stroke end by up to 50 mm during initial machine setup, eliminating the need to stock multiple fixed-stroke cylinders for trial-and-error positioning.
Format Changeover
On packaging or assembly lines, the adjustable screw lets operators quickly reset the push or stop position for different product sizes without mechanical rework.
Wear Compensation
Over time, tooling or gripper pads wear down. The 50 mm adjustment range allows maintenance teams to restore the exact stroke end position without replacing the actuator.
Is the Airtac SCJ100 Standard Cylinder SCJ100X275-50 the Right Cylinder?
Choose the SCJ100 when you need roughly 3900 N of push force at standard plant air. If your load is lighter, stepping down to an 80 mm bore (2513 N push at 0.5 MPa) saves air and space; for heavier work, the 125 mm bore offers 6136 N push at 0.5 MPa. This adjustable-stroke model is the right pick when the end position needs fine-tuning on the machine—if the stroke is fixed and never changes, a standard SC100 fixed-stroke cylinder is a simpler, lower-cost alternative. For a drop-in replacement, match the 100 mm bore, 275 mm nominal stroke, 50 mm adjust range, PT port thread, and basic mounting. Because the nominal stroke exceeds 300 mm, evaluate side-loading and rod bending; if the load is not perfectly guided, add an external guide rail or consider a guided cylinder to protect the rod and seals.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-50)
- ✓ Required force at your working pressure
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear adjusting screw, then lock it before running.
- check Adjust end cushion screws for smooth stops.
- check Use SCJ mounting accessory (FA / LB / TC / TCM1).
- check Installation by qualified personnel per AirTAC docs.
Airtac SCJ100 Standard Cylinder SCJ100X275-50 FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N (the difference is due to the 25 mm single rod). At the maximum operating pressure of 0.9 MPa, push force reaches 7068 N. The theoretical maximum at 1.0 MPa is 801 kgf.
Yes, if you need the 50 mm stroke-end adjustment range. The SCJ100 shares the same bore, rod diameter, port size, and mounting accessories (Basic, FA, LB, TC) as the SC100. Ensure the nominal stroke, adjust range, and port thread (PT) match your existing setup.
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