Airtac SCJ50 Standard Cylinder SCJ50X600-50S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X600-50S 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. Ø50mm bore, 600mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke600 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X600-50S
The SCJ50X600-50S is a double-acting, single-rod pneumatic cylinder offering a field-adjustable stroke end via a rear-cap screw, with a 50 mm adjustment range on its 600 mm nominal stroke. This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, simplifying position feedback integration. At 0.5 MPa, it delivers 982 N of push force and 825 N on the pull stroke, driven by a 20 mm diameter piston rod.
With a PT1/4 port, M16x1.5 rod thread, and a 21 mm air cushion, this tie-rod cylinder is suited for applications requiring fine end-position tuning without cylinder replacement. The body length A(SCJ) is 194 mm plus stroke, making it a compact solution for commissioning, format changes, or wear take-up in automated machinery.
Airtac SCJ50 Standard Cylinder SCJ50X600-50S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X600-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 600 mm |
| Stroke adjustment | Up to 50 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 SCJ50X600-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×600 | 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 SCJ50 Standard Cylinder SCJ50X600-50S Is Used
Commissioning & Setup
During machine commissioning, the 50 mm adjustment screw allows engineers to fine-tune the actuator's end stop without re-machining mounts or swapping cylinders, speeding up the debug process.
Product Format Changeover
On packaging lines, the adjustable stroke enables quick repositioning of a stop gate or pusher for different box sizes, with the magnet confirming the new position via a CMSG sensor.
Wear Compensation
In clamping or pressing fixtures, the stroke can be incrementally extended over time to compensate for tooling or pad wear, maintaining consistent clamping force without mechanical shims.
Is the Airtac SCJ50 Standard Cylinder SCJ50X600-50S the Right Cylinder?
Select the SCJ50X600-50S when you need to precisely dial in a stroke end position within a 50 mm window on a 600 mm nominal stroke, especially where sensor feedback is required. If your force requirements are lower, the SCJ40 series provides 628 N of push force at 0.5 MPa; for higher demands, the SCJ63 delivers 1559 N. For applications where the stroke is fixed and never needs field adjustment, a standard SC fixed-stroke cylinder is a more economical choice. At a 600 mm stroke, ensure the rod is adequately supported against side loads, or consider an external guide rail to prevent bending and premature seal wear. This unit is a direct replacement for another AirTAC SCJ50X600-50S with a PT port and magnet.
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 SCJ50 Standard Cylinder SCJ50X600-50S FAQ
At the standard 0.5 MPa operating pressure, it produces 982 N of push force and 825 N of pull force. The maximum push force at 0.9 MPa is 1767 N, with a theoretical maximum of 200 kgf at 1.0 MPa.
Yes, provided the bore, port thread (PT), and mounting style match. The SCJ50X600-50S offers the same 50 mm bore and force characteristics as an SC50 but adds a 50 mm field-adjustable stroke range, giving you flexibility to change the end position without replacing the entire cylinder.
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