Airtac SCJ100 Standard Cylinder SCJ100X275-75S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X275-75S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 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-75 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X275-75S
The SCJ100X275-75S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke, capable of 3927 N of push force at 0.5 MPa. Its rear-cap adjusting screw provides a 75 mm adjustment range, allowing the stroke end position to be fine-tuned from 200 mm up to the nominal 275 mm without removing the cylinder. The 25 mm diameter rod and PT1/2 port ensure robust, high-flow performance for demanding industrial tasks.
This model features a built-in magnet, enabling direct mounting of CMSG/DMSG/EMSG reed or solid-state sensors along the tie-rod barrel for precise end-of-stroke detection. The standard TPU seal offers reliable operation from -20 to +70 °C. With a body length of 245 mm, it delivers a substantial 7068 N of push force at the maximum operating pressure of 0.9 MPa, making it a powerful solution for heavy guided tooling.
Airtac SCJ100 Standard Cylinder SCJ100X275-75S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X275-75S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 275 mm |
| Stroke adjustment | Up to 75 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 SCJ100X275-75S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×275 | Nominal (maximum) stroke length in mm. |
| -75 | 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 SCJ100X275-75S Is Used
Commissioning & Setup
The 75 mm adjustment range allows technicians to dial in the exact end-stop position during initial machine commissioning, eliminating the need to fabricate custom shims or swap cylinders to achieve the correct stroke length.
Product Format Changeover
Ideal for packaging lines where the cylinder stroke must be quickly altered to handle different box or pallet sizes. The rear screw provides a repeatable mechanical stop that can be reset in seconds for a new format.
Wear Compensation
In high-cycle clamping or pressing fixtures, the adjustable stroke can be used to take up mechanical wear on tooling or workpieces over time, maintaining consistent clamp force without reprogramming a servo axis.
Is the Airtac SCJ100 Standard Cylinder SCJ100X275-75S the Right Cylinder?
Choose the SCJ100X275-75S when you need a powerful actuator with a stroke that requires on-machine adjustment, such as for commissioning or format changeovers. To step up in force, the SCJ125 series offers 6136 N of push force at 0.5 MPa; to step down, the SCJ80 series provides 2513 N. If your application does not require stroke adjustability, a fixed-stroke SC100 cylinder is a simpler, more cost-effective alternative. For this 275 mm stroke, ensure the rod is well-supported with an external guide if significant side loads are present to prevent rod bending.
This is a direct replacement for any AirTAC SCJ100X275-75S cylinder with a PT port and built-in magnet. For a matching unit, verify the bore (100 mm), nominal stroke (275 mm), adjust range (75 mm), and the -S magnet suffix. Mounting accessories from the SCJ subset, such as an FA front flange (F-SC100FA) or LB foot mount (F-SC100LB), can be added for secure installation.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-75)
- ✓ 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 SCJ100X275-75S FAQ
The push force is 3927 N at 0.5 MPa and 7068 N at the maximum operating pressure of 0.9 MPa. The pull force is lower due to the single 25 mm rod, providing 3681 N at 0.5 MPa. Always size the cylinder based on the required force at your specific working pressure.
You can replace an SC100 with this SCJ100X275-75S only if you need the adjustable stroke feature and the mounting points align. The SCJ body is slightly longer than a fixed-stroke SC. For a direct dimensional drop-in replacement, you must match the bore, stroke, and mounting type to another SC100 cylinder.
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