Airtac SCJ50 Standard Cylinder SCJ50X35-10S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X35-10S 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. Ø50mm bore, 35mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke35 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X35-10S
The SCJ50X35-10S delivers a nominal 35 mm stroke with a 10 mm rear-end adjustment range, letting you fine-tune the stop position without swapping the cylinder. Its 20 mm piston rod and PT1/4 ports handle 982 N of push force at 0.5 MPa, making it a practical pick for light pressing, clamping, and positioning tasks where the end point needs to be dialled in during commissioning.
This model includes a built-in magnet (S) so CMSG/DMSG/EMSG sensors can be clamped directly onto the tie-rod barrel for non-contact position feedback. The standard TPU seals and PT threads keep it compatible with common filtered-air systems, while the 21 mm air cushion at each end protects the end caps from impact.
Airtac SCJ50 Standard Cylinder SCJ50X35-10S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X35-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 35 mm |
| Stroke adjustment | Up to 10 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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, 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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 SCJ50 Standard Cylinder SCJ50X35-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×35 | 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 SCJ50 Standard Cylinder SCJ50X35-10S Is Used
Commissioning Fine-Tuning
Dial in the exact stroke end position on a new assembly line without cutting rods or adding external hard stops, speeding up machine bring-up.
Wear Take-Up on Stops
Compensate for pad or gripper wear over time by simply turning the rear adjusting screw to restore the original contact point.
Format Changeover
Quickly adjust the stroke for different product sizes on a packaging or labelling station without changing the cylinder.
Is the Airtac SCJ50 Standard Cylinder SCJ50X35-10S the Right Cylinder?
Choose this 50 mm bore when your load needs around 982 N of push force at standard shop air. If you need more force, stepping up to the 63 mm bore provides 1559 N push at the same 0.5 MPa. For applications where the stroke never changes, a fixed-stroke SC50X35-S cylinder is a simpler alternative. The adjustable screw is ideal for taking up wear or setting a precise end position during format changes.
For a direct replacement, match the bore (50 mm), nominal stroke (35 mm), adjust range (10 mm), PT port thread, and the built-in magnet (S). The basic mounting style means no additional bracket is included; add an FA front flange or LB foot mount if the application requires it.
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 SCJ50 Standard Cylinder SCJ50X35-10S FAQ
At 0.5 MPa, it produces 982 N of push force and 825 N of pull force. At the maximum operating pressure of 1.0 MPa, the push force reaches 1964 N.
A fixed-stroke SC50X35-S will fit the same mounting and port connections, but you lose the 10 mm rear-end stroke adjustment. If you need the field-adjustable feature, you must replace it with another SCJ50X35-10S or an SCJ with the same bore, nominal stroke, and adjust range.
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