Airtac SCJ50 Standard Cylinder SCJ50X175-10S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X175-10S 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, 175mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke175 mm
- Stroke adjust-10 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X175-10S
The SCJ50X175-10S is a double-acting, single-rod pneumatic cylinder that puts fine stroke-end adjustment directly into the rear cap. A 10 mm adjusting screw lets you dial in the exact end position on the machine, delivering 982 N of push force at 0.5 MPa from its 50 mm bore. The 20 mm diameter piston rod provides solid rigidity for push/pull tasks, and the built-in magnet allows direct mounting of CMSG/DMSG sensors for end-of-stroke detection.
With a 21 mm air cushion at each end, the cylinder decelerates the piston smoothly, reducing impact noise and wear. The body length A is 194 mm, making it compact enough for inline mounting in automation cells. This model uses the standard PT1/4 port and operates on filtered air from 0.15 to 1.0 MPa across a temperature range of -20 to +70 °C.
Airtac SCJ50 Standard Cylinder SCJ50X175-10S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X175-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 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 | 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 SCJ50X175-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | 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 SCJ50 Standard Cylinder SCJ50X175-10S Is Used
Commissioning & Setup
The 10 mm rear adjusting screw lets technicians fine-tune the stroke end position during machine bring-up without swapping cylinders or machining external hard stops.
Sensor-Ready Automation
The built-in magnet (-S) accepts CMSG/DMSG solid-state sensors, providing reliable, non-contact piston position feedback for sequencing or part-present verification.
Format Changeover
Quickly adjust the cylinder stroke to accommodate different product sizes on packaging or assembly lines, reducing downtime between production runs.
Is the Airtac SCJ50 Standard Cylinder SCJ50X175-10S the Right Cylinder?
Choose the SCJ50X175-10S when you need to fine-tune a 175 mm stroke by up to 10 mm during commissioning or changeover. If your force requirement is lower, the 40 mm bore SCJ series provides 628 N of push at 0.5 MPa; for more force, the 63 mm bore steps up to 1559 N. The rear adjusting screw sets the stroke end only—it is not a speed control, so pair it with a flow control valve for velocity tuning. If you need a fixed, non-adjustable stroke, the standard SC series is a simpler alternative.
For replacement, match the 50 mm bore, 175 mm nominal stroke, 10 mm adjust range, PT1/4 port, and the -S magnet option. This cylinder accepts the SCJ mounting subset: basic (no bracket), FA front flange, LB foot, or TC centre trunnion with TCM1 bracket. At 175 mm, the stroke is well within the standard range, so rod bending from side loads is manageable, but always guide the load externally if off-axis forces are present.
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 SCJ50X175-10S FAQ
At 0.5 MPa, the push force is 982 N and the pull force is 825 N. The maximum push force at the 0.9 MPa operating limit is 1767 N. Because this is a single-rod cylinder, the push force is always greater than the pull force due to the rod area on the return side.
Yes, provided the bore (50 mm), nominal stroke (175 mm), port thread (PT1/4), and mounting style are compatible. The SCJ body is slightly longer to house the adjusting screw, so verify the extended envelope fits your machine. The -S magnet option must also match if you use sensors.
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