Airtac SCJ100 Standard Cylinder SCJ100X500-50S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X500-50S 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. Ø100mm bore, 500mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke500 mm
- Stroke adjust-50 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X500-50S
The SCJ100X500-50S is a double-acting, single-rod tie-rod cylinder with a rear-cap adjusting screw that lets you fine-tune the stroke end position by up to 50 mm without removing the cylinder from the machine. With a 100 mm bore, it delivers a substantial 3927 N of push force at 0.5 MPa (pull force is 3681 N due to the 25 mm piston rod), making it a strong candidate for heavy-duty clamping, pressing, and positioning tasks where the final stop point needs field adjustment.
This model includes a built-in magnet (-S suffix), so you can directly mount CMSG/DMSG/EMSG reed or solid-state sensors on the barrel for end-of-stroke or mid-stroke position feedback. The standard PT1/2 port and TPU seals suit filtered-air systems from -20 to +70 °C, and the 29 mm air cushion at each end decelerates the piston smoothly, protecting the end caps during high-cycle operation.
Airtac SCJ100 Standard Cylinder SCJ100X500-50S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X500-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 500 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/2 |
| Rod thread | M20×1.5 |
| 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, 29 mm |
| Max stroke | Up to 1500 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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 SCJ100 Standard Cylinder SCJ100X500-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×500 | 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 SCJ100 Standard Cylinder SCJ100X500-50S Is Used
Commissioning & Fine-Tuning
During machine setup, the 50 mm rear screw lets technicians dial in the exact stroke end for a press or clamp without iterative cylinder swaps, cutting commissioning time.
Product Format Changeover
On packaging lines, quickly adjust the push stroke for different box sizes or pallet patterns by turning the rear screw, eliminating the need for multiple fixed-stroke cylinders.
Wear Compensation
In abrasive environments, the adjustable stroke can be extended slightly over time to compensate for tooling or gripper pad wear, maintaining consistent clamping force without replacing parts.
Is the Airtac SCJ100 Standard Cylinder SCJ100X500-50S the Right Cylinder?
Step up to the 125 mm bore SCJ125X500-50 for a significant force increase to 6136 N push at 0.5 MPa if the 100 mm bore's 3927 N is borderline for your load. For applications that do not require stroke adjustability, the fixed-stroke SC100X500 is a simpler, slightly shorter alternative. If you are replacing an existing SCJ100X500-50S, match the bore, 500 mm nominal stroke, 50 mm adjustment range, PT1/2 ports, and the -S magnet option exactly to maintain sensor compatibility.
At a 500 mm stroke, the piston rod is fully extended and more susceptible to side loading. If your application imposes any lateral force, add an external linear guide or switch to a guided cylinder assembly to prevent rod bending and premature seal wear.
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 SCJ100 Standard Cylinder SCJ100X500-50S FAQ
At 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. At the maximum operating pressure of 0.9 MPa, push force reaches 7068 N. The pull force is lower because the 25 mm piston rod reduces the effective area on the return stroke.
Yes. The -S suffix in the model code indicates a built-in magnet is installed in the piston. This allows you to mount AirTAC CMSG, DMSG, or EMSG series sensors directly onto the cylinder barrel's sensor slots to detect piston position.
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