Airtac SCJ50 Standard Cylinder SCJ50X230-75
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X230-75 is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 75 mm range without swapping the cylinder. Ø50mm bore, 230mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke230 mm
- Stroke adjust-75 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X230-75
The AirTAC SCJ50X230-75 is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, providing a 75 mm adjustment range on the 230 mm nominal stroke. This 50 mm bore unit delivers a push force of 982 N at 0.5 MPa (1767 N at 0.9 MPa), making it a robust mid-range actuator for tasks requiring fine-tuned positioning without swapping the cylinder. The rear-cap adjusting screw lets operators quickly dial in the exact stroke end for commissioning or format changes.
Equipped with a 20 mm diameter piston rod, M16x1.5 rod thread, and PT1/4 ports, the SCJ50X230-75 integrates into standard pneumatic circuits. Its adjustable air cushion decelerates the piston smoothly, and the tie-rod construction provides a serviceable, durable design. The body length A for this SCJ series is 194 mm, slightly longer than a fixed-stroke SC of the same bore to accommodate the adjustment mechanism.
Airtac SCJ50 Standard Cylinder SCJ50X230-75 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X230-75 |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 230 mm |
| Stroke adjustment | Up to 75 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 SCJ50X230-75
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×230 | Nominal (maximum) stroke length in mm. |
| -75 | 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 SCJ50X230-75 Is Used
Commissioning & Setup
The 75 mm adjustment range allows technicians to precisely dial in the stroke end position during machine commissioning, eliminating the need to stock multiple fixed-stroke cylinders for trial-and-error setup.
Product Format Changeover
Quickly adapt the cylinder's stroke for different product sizes on a packaging or sorting line. The rear screw adjustment enables a single actuator to handle multiple formats, reducing changeover time.
Wear Compensation
In clamping or pressing applications, the adjustable stroke can be used to take up mechanical wear on tooling or contact surfaces over time, maintaining consistent clamping force and position without replacing parts.
Is the Airtac SCJ50 Standard Cylinder SCJ50X230-75 the Right Cylinder?
Select the SCJ50X230-75 when you need to fine-tune the stroke end position within a 75 mm window during setup or after wear. If the 982 N push force at 0.5 MPa is insufficient, stepping up to a 63 mm bore SCJ provides 1559 N of push force. For applications where the stroke is permanently fixed and never needs adjustment, a standard SC50 fixed-stroke cylinder is a more economical choice. This model is a direct replacement for another AirTAC SCJ50X230-75 with PT ports and basic mounting. For strokes of 230 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 (-75)
- ✓ 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 SCJ50X230-75 FAQ
The push force is 982 N at 0.5 MPa and 1767 N at the maximum operating pressure of 0.9 MPa. The pull force is lower at 825 N at 0.5 MPa due to the 20 mm piston rod reducing the effective piston area on the return stroke.
It can replace an SC50 if you need the adjustable stroke feature, but you must account for the longer body length (194 mm for the SCJ series) and ensure the 75 mm adjustment range is suitable. For a direct dimensional and functional drop-in replacement for a fixed-stroke cylinder, an SC50 model is the correct match.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCJ Adjustable-Stroke Cylinders
Request a Quote for Airtac SCJ50 Standard Cylinder SCJ50X230-75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.