Airtac SCJ50 Standard Cylinder SCJ50X100-100S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X100-100S 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, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke100 mm
- Stroke adjust-100 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X100-100S
The SCJ50X100-100S is a double-acting, single-rod pneumatic cylinder that puts fine stroke control directly into the rear cap. Its 100 mm adjustment range lets you dial the stroke end from 0 to 100 mm without removing the cylinder, making it ideal for commissioning trials and format changeovers. With a 20 mm rod and PT1/4 ports, this tie-rod cylinder delivers 982 N of push force at 0.5 MPa and up to 1767 N at 0.9 MPa.
This model includes a built-in magnet, so you can mount CMSG/DMSG/EMSG sensors directly on the barrel for reliable end-of-stroke detection. The 21 mm air cushion at each end decelerates the piston smoothly, protecting your tooling. The body length A(SCJ) is 194 mm, providing a compact yet powerful solution for applications where stroke length needs frequent, precise tweaking.
Airtac SCJ50 Standard Cylinder SCJ50X100-100S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X100-100S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 100 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 SCJ50X100-100S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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 SCJ50X100-100S Is Used
Commissioning & Setup
Technicians can fine-tune the stroke end in 100 mm increments during initial machine setup without swapping cylinders, drastically reducing commissioning time on packaging or assembly lines.
Product Format Changeover
Quickly adjust the stop position for different product sizes on a conveyor diverter. The 100 mm range covers multiple SKUs, and the magnetic piston allows sensors to be repositioned for each new format.
Wear Compensation
In clamping or pressing applications, the adjusting screw can be advanced to take up mechanical wear on tooling or seals, maintaining consistent clamp force and position over the machine's life without a full cylinder rebuild.
Is the Airtac SCJ50 Standard Cylinder SCJ50X100-100S the Right Cylinder?
Choose the SCJ50X100-100S when you need a mid-range force cylinder with a wide, field-adjustable stroke window. If your load requires less force, stepping down to the 40 mm bore reduces push force to 628 N at 0.5 MPa. For higher force demands, the 63 mm bore provides 1559 N. This adjustable-stroke model is the right pick over a fixed-stroke SC when the exact stroke length is unknown at design time or must be fine-tuned on the machine. A direct replacement must match the 50 mm bore, 100 mm nominal stroke, 100 mm adjustment range, PT thread, and the built-in magnet.
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 SCJ50X100-100S FAQ
The rear cap has an adjusting screw that limits how far the piston can retract. By turning this screw, you can shorten the stroke end anywhere from 0 to 100 mm. The 100 mm nominal stroke is the maximum; the effective stroke is set by your adjustment. It does not change the cylinder's 982 N push force at 0.5 MPa.
No, the SCJ50X100-100S is a standard double-acting cylinder and will not hold position if air pressure is exhausted or lost. The air cushion only decelerates the piston, and the stroke-adjust screw only sets the end position. For load holding without pressure, you must add an external rod lock or a pilot-operated check valve.
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