Airtac SCJ50 Standard Cylinder SCJ50X100-100
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X100-100 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 SCJ50X100-100
The SCJ50X100-100 is a double-acting, single-rod pneumatic cylinder that puts fine stroke-end tuning directly into the rear cap. With a full 100 mm of adjustment range, you can dial in the exact end position on the fly—no need to swap cylinders or machine external stops during commissioning or format changes. The 20 mm diameter piston rod and 21 mm air cushion work together to deliver smooth, controlled deceleration at every setting.
At 0.5 MPa, this 50 mm bore cylinder provides 982 N of push force and 825 N on the pull stroke, giving you a solid mid-range actuator for clamping, pressing, and positioning tasks. The tie-rod construction keeps it serviceable, and the PT1/4 ports are standard across the SCJ family. Body length A(SCJ) is 194 mm, making it a compact solution for machines where stroke flexibility matters more than fixed dimensions.
Airtac SCJ50 Standard Cylinder SCJ50X100-100 Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X100-100 |
|---|---|
| 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 SCJ50X100-100
| 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 SCJ50X100-100 Is Used
Commissioning & Fine-Tuning
During machine bring-up, the 100 mm adjustment screw lets technicians dial in the perfect end-stop position without cutting brackets or re-mounting the cylinder. Once set, the lock nut holds the position securely.
Product Format Changeover
On packaging lines that run multiple box sizes, the adjustable stroke lets operators quickly reset the pusher stroke to match a new product height. The full 100 mm range covers a wide family of formats from a single cylinder part number.
Wear Compensation
In pressing or clamping fixtures where tooling wears over time, the rear adjusting screw provides a simple way to take up the slack and maintain consistent contact force without reprogramming the machine or adding shims.
Is the Airtac SCJ50 Standard Cylinder SCJ50X100-100 the Right Cylinder?
Choose the SCJ50X100-100 when your application needs a 100 mm nominal stroke with the ability to shorten it anywhere down to zero. If you need more force, step up to the 63 mm bore (1559 N push at 0.5 MPa); if space is tighter and force requirements are lower, the 40 mm bore (628 N push) may fit. For applications where the stroke length is permanently fixed and will never need field adjustment, the standard SC50X100 fixed-stroke cylinder is a simpler, slightly shorter alternative.
This model is a direct replacement for another AirTAC SCJ50X100-100 with PT threads and basic mounting. If you're adding external guides or the rod sees side loads, consider a guided cylinder or an external linear rail to prevent rod bending and premature 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 SCJ50X100-100 FAQ
At the standard 0.5 MPa operating pressure, this cylinder generates 982 N of push force and 825 N of pull force. At the maximum operating pressure of 1.0 MPa, push force reaches 1767 N. Because it is a single-rod cylinder, push force is always greater than pull force.
Yes, this is a genuine AirTAC SCJ50X100-100 with a 100 mm adjustment range, PT1/4 ports, and basic mounting. It is a direct dimensional and performance match for any AirTAC SCJ50X100-100 of the same configuration. Verify your existing cylinder's port thread and mounting style before ordering.
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