Airtac SCJ40 Standard Cylinder SCJ40X175-10S
The AirTAC Airtac SCJ40 Standard Cylinder SCJ40X175-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø40mm bore, 175mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ40 mm
- Nominal stroke175 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM12×1.25
- CushionAdjustable, 21 mm
About the Airtac SCJ40 Standard Cylinder SCJ40X175-10S
The SCJ40X175-10S is a 40 mm bore double-acting single-rod cylinder with a rear adjusting screw that provides up to 10 mm of field-adjustable stroke-end reduction. This allows fine-tuning of the piston stop position without swapping the cylinder or adding external hardware. At 0.5 MPa, it delivers 628 N push and 528 N pull force, making it suitable for medium-duty clamping, pressing, and positioning tasks.
A built-in magnet (the -S suffix) allows direct mounting of CMSG, DMSG, or EMSG sensors on the tie-rod barrel for non-contact position sensing. The cylinder uses a 16 mm diameter rod, M12x1.25 rod thread, and PT1/4 ports. Standard features include a variable air cushion for smooth deceleration and a TPU seal for operation from -20 to +70 °C.
Airtac SCJ40 Standard Cylinder SCJ40X175-10S Technical Specifications
| Model | Airtac SCJ40 Standard Cylinder SCJ40X175-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø40 mm |
| Nominal stroke | 175 mm |
| Stroke adjustment | Up to 10 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| 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, 21 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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 SCJ40 Standard Cylinder SCJ40X175-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×175 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ40 Standard Cylinder SCJ40X175-10S Is Used
Commissioning & Setup
Fine-tune the end-of-stroke position by up to 10 mm during machine commissioning without needing to machine custom stops or order a different cylinder stroke.
Wear Compensation
Adjust the stroke end to compensate for gradual wear on tooling or contact surfaces, maintaining precise clamping or pressing depth over the machine's life.
Format Changeover
Quickly adapt the cylinder's stop position for different product sizes on a packaging or assembly line, reducing changeover time between batches.
Is the Airtac SCJ40 Standard Cylinder SCJ40X175-10S the Right Cylinder?
Choose the SCJ40X175-10S when you need to dial in the stroke end position during commissioning or after tooling wear. If 628 N of push force at 0.5 MPa is insufficient, stepping up to a 50 mm bore SCJ provides 982 N. For applications where the stroke length never needs adjustment, a fixed-stroke SC40X175 cylinder is a simpler, slightly shorter alternative.
This model is a direct replacement for an AirTAC SCJ40X175-10S with a magnet, PT ports, and basic mounting. For strokes of 175 mm, ensure the rod is not subjected to high side loads; if lateral forces are present, use an external guide rail or switch to a guided cylinder to prevent rod bending and premature seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ40 Standard Cylinder SCJ40X175-10S FAQ
At 0.5 MPa, the push force is 628 N and the pull force is 528 N. At the maximum operating pressure of 1.0 MPa, the theoretical push force is 128 kgf. The pull force is lower due to the area of the 16 mm piston rod.
Yes, provided the bore (40 mm), nominal stroke (175 mm), port thread (PT1/4), and mounting style match. The SCJ body is slightly longer than a fixed-stroke SC to house the adjusting screw. You will also gain the ability to fine-tune the stroke end by up to 10 mm.
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