Airtac SCJ50 Standard Cylinder SCJ50X500-100STC
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X500-100STC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 100 mm range without swapping the cylinder. Ø50mm bore, 500mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke500 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X500-100STC
The AirTAC SCJ50X500-100STC is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, giving you a 100 mm fine-tuning range on the 500 mm nominal stroke. With a 50 mm bore, it delivers 982 N of push force at 0.5 MPa and up to 1767 N at the maximum operating pressure of 0.9 MPa, using a 20 mm diameter piston rod and PT1/4 ports.
This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors and a centre trunnion (TC) mount, supplied with the TCM1 bracket, for pivoting applications. The tie-rod construction and 21 mm air cushion ensure reliable deceleration, while the rear adjusting screw lets you dial in the exact stroke end position without swapping the cylinder.
Airtac SCJ50 Standard Cylinder SCJ50X500-100STC Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X500-100STC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 500 mm |
| Stroke adjustment | Up to 100 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 SCJ50X500-100STC
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×500 | Nominal (maximum) stroke length in mm. |
| -100 | 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 SCJ50X500-100STC Is Used
End-Stop Fine-Tuning
The 100 mm adjustment screw allows operators to precisely set the final position of a tool or stop in a fixture, compensating for part tolerances or tool wear without reprogramming the machine.
Format Changeovers
On a packaging line, quickly adjust the stroke of a pusher arm to handle different box sizes. The rear screw makes the change in seconds, minimizing downtime between product runs.
Commissioning Trials
During machine setup, the adjustable stroke lets engineers experimentally determine the optimal stroke length for a new process before locking it in, avoiding the need to stock multiple fixed-stroke cylinders.
Is the Airtac SCJ50 Standard Cylinder SCJ50X500-100STC the Right Cylinder?
Choose the SCJ50X500-100STC when your application needs a 500 mm reach with the ability to trim the stroke end by up to 100 mm during commissioning or changeovers. If you need more force, step up to the 63 mm bore (1559 N push at 0.5 MPa); for a lighter, more compact solution, the 40 mm bore provides 628 N. This adjustable-stroke unit is a direct replacement for another AirTAC SCJ of the same bore, nominal stroke, 100 mm adjust range, PT thread, TC mount, and magnet. For a 500 mm stroke, always check for side-loading on the rod; if the load is not perfectly guided, add an external guide rail or consider a guided cylinder to prevent rod bending and seal wear.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-100)
- ✓ 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 SCJ50X500-100STC FAQ
The push force is 982 N at 0.5 MPa and 1767 N at 0.9 MPa. The pull force is lower due to the single 20 mm rod, providing 825 N at 0.5 MPa. These are standard single-rod cylinder forces; the adjustable screw does not alter the force output.
Yes, if you need field adjustability. The SCJ50X500-100STC has the same bore, 500 mm maximum stroke, and mounting interface as an SC50X500, but its body is slightly longer to house the adjusting screw. It is a direct replacement only for another SCJ50 with a 100 mm adjust range, TC mount, and magnet sensor option.
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