Airtac SCJ50 Standard Cylinder SCJ50X600-50
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X600-50 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 SCJ50X600-50
The SCJ50X600-50 is a double-acting, single-rod pneumatic cylinder with a 50 mm bore and a nominal 600 mm stroke, featuring a rear-cap adjusting screw that provides a 50 mm field-adjustable range to fine-tune the stroke end position. Operating on filtered air at 0.15–1.0 MPa, it delivers a push force of 982 N at 0.5 MPa and up to 1767 N at 0.9 MPa, while the pull force is 825 N at 0.5 MPa due to the 20 mm diameter piston rod.
This tie-rod cylinder has a PT1/4 port, an M16x1.5 rod thread, and an adjustable air cushion length of 21 mm to decelerate the piston smoothly. The body length A(SCJ) is 194 mm, and the standard stroke range for the 50 mm bore extends up to 1200 mm, making this 600 mm stroke unit a standard configuration. The adjustable stroke end is ideal for commissioning trials, format changeovers, or taking up mechanical wear without replacing the cylinder or adding external hard stops.
Airtac SCJ50 Standard Cylinder SCJ50X600-50 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X600-50 |
|---|---|
| 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 SCJ50X600-50
| 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 SCJ50X600-50 Is Used
Commissioning & Setup
The 50 mm adjustable stroke range allows technicians to quickly dial in the exact stopping position during machine commissioning without swapping cylinders or machining custom stops, reducing setup time.
Product Format Changeover
On packaging or assembly lines, operators can adjust the stroke end to accommodate different product sizes or pallet dimensions, enabling rapid changeovers with a simple screw adjustment.
Wear Compensation
In high-cycle clamping or pressing operations, the adjustable screw can be used to take up mechanical slack from tooling wear over time, maintaining consistent process quality without immediate part replacement.
Is the Airtac SCJ50 Standard Cylinder SCJ50X600-50 the Right Cylinder?
Choose the SCJ50X600-50 when you need a mid-range force actuator with the ability to precisely dial in the end-of-stroke position on the machine. If your application requires more force, stepping up to the 63 mm bore provides 1559 N of push force at 0.5 MPa; for a lighter, more compact solution, the 40 mm bore delivers 628 N. For applications where the stroke length is fixed and never needs adjustment, the standard SC50X600 fixed-stroke cylinder is a simpler, more economical alternative.
At a 600 mm stroke, managing side loads is critical to prevent rod bending and premature seal wear. Always ensure the load is guided externally and aligned axially with the rod, or consider using a guided cylinder assembly if high transverse forces are present. This model is a direct replacement for another AirTAC SCJ50X600-50 cylinder with the same PT port thread and basic mounting configuration.
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 SCJ50X600-50 FAQ
At the standard operating pressure of 0.5 MPa, the cylinder provides a push force of 982 N and a pull force of 825 N. The maximum push force at the 0.9 MPa operating limit is 1767 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
You can, but you must account for the slightly longer body length of the SCJ series due to the rear adjusting mechanism. The SCJ50X600-50 is a direct dimensional match for another SCJ50X600-50. If replacing a fixed-stroke SC, verify the extended rear cap does not interfere with your mounting space and ensure the port size (PT1/4) and mounting style are compatible.
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