Airtac SCJ50 Standard Cylinder SCJ50X75-10S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X75-10S 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, 75mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke75 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X75-10S
The SCJ50X75-10S is a double-acting, single-rod pneumatic cylinder with a 50 mm bore and a 75 mm nominal stroke, featuring a rear-cap adjusting screw that provides a 10 mm field-adjustable stroke range. This model delivers a push force of 982 N at 0.5 MPa, making it a strong performer for mid-range automation tasks, and includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors.
With a 20 mm piston rod and M16x1.5 rod thread, the SCJ50X75-10S is built for durability. The adjustable stroke end is ideal for fine-tuning actuator position during commissioning or for accommodating minor variations in tooling without replacing the cylinder. Its PT1/4 ports and 21 mm air cushion ensure smooth, controlled motion across its 30-800 mm/s speed range.
Airtac SCJ50 Standard Cylinder SCJ50X75-10S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X75-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 75 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 SCJ50X75-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×75 | 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 SCJ50X75-10S Is Used
Commissioning & Setup
The 10 mm adjusting screw allows engineers to quickly fine-tune the end-of-stroke position on a new machine during initial setup, eliminating the need to fabricate custom shims or stops.
Wear Compensation
In clamping or pressing operations, the adjustable stroke can be periodically tweaked to compensate for wear on tooling or workpieces, maintaining consistent applied force without changing the cylinder.
Product Changeover
For packaging or sorting lines handling different product sizes, the SCJ50X75-10S allows operators to adjust the stroke end to match a new format, reducing changeover time and the need for multiple fixed-stroke cylinders.
Is the Airtac SCJ50 Standard Cylinder SCJ50X75-10S the Right Cylinder?
Select the SCJ50X75-10S when you need a 50 mm bore cylinder with the ability to precisely dial in the stroke end position within a 10 mm window. If your application requires more force, consider stepping up to the 63 mm bore SCJ63 series, which provides 1559 N of push force at 0.5 MPa. For applications needing less force, the 40 mm bore SCJ40 series offers 628 N. The integrated magnet makes this a direct replacement for any SCJ50X75-10S with sensor requirements; ensure the replacement matches the 75 mm nominal stroke, 10 mm adjust range, PT ports, and basic mounting.
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 SCJ50X75-10S FAQ
The cylinder provides a push force of 982 N at 0.5 MPa and a pull force of 825 N. The adjustable stroke mechanism only changes the physical end-of-stroke position; it does not alter the cylinder's bore size, operating pressure, or output force capability.
Yes, it is a direct form-and-function replacement for any AirTAC SCJ50X75-10S cylinder. Ensure your replacement matches the 50 mm bore, 75 mm nominal stroke, 10 mm adjustment range, PT port thread, basic mounting, and the -S magnet option for sensor compatibility.
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