Airtac SCJ50 Standard Cylinder SCJ50X100-50S
The AirTAC Airtac SCJ50 Standard Cylinder SCJ50X100-50S 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. Ø50mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
- BoreØ50 mm
- Nominal stroke100 mm
- Stroke adjust-50 mm
- Port sizePT1/4
- Rod threadM16×1.5
- CushionAdjustable, 21 mm
About the Airtac SCJ50 Standard Cylinder SCJ50X100-50S
The SCJ50X100-50S is a double-acting, single-rod pneumatic cylinder with a 50 mm bore and a nominal 100 mm stroke, featuring a rear-cap adjusting screw that provides up to 50 mm of field-adjustable stroke-end reduction. This model delivers a push force of 1767 N at 0.9 MPa and a pull force of 825 N at 0.5 MPa, making it a strong performer for mid-range industrial tasks.
An integrated magnet (-S suffix) allows direct mounting of CMSG/DMSG/EMSG sensors on the tie-rod barrel for reliable end-of-stroke detection. The 20 mm diameter rod and PT1/4 port thread are standard for this bore, and the body length A(SCJ) is 194 mm. The adjustable cushioning helps decelerate the piston smoothly, even as the stroke end is fine-tuned on the machine.
Airtac SCJ50 Standard Cylinder SCJ50X100-50S Technical Specifications
| Model | Airtac SCJ50 Standard Cylinder SCJ50X100-50S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø50 mm |
| Nominal stroke | 100 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 SCJ50X100-50S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×100 | 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 SCJ50X100-50S Is Used
Commissioning & Setup
During machine commissioning, the 50 mm adjustment range allows engineers to dial in the exact stroke end position for grippers or clamps without fabricating new hard stops.
Product Format Changeover
On a packaging line, quickly adjust the pusher stroke to accommodate different box sizes, reducing changeover time between product runs.
Wear Compensation
In high-cycle pressing or clamping fixtures, the screw can be periodically advanced to compensate for pad wear, maintaining consistent contact force.
Is the Airtac SCJ50 Standard Cylinder SCJ50X100-50S the Right Cylinder?
Choose this SCJ50 model when you need to commission a 100 mm stroke with the flexibility to shorten it by up to 50 mm on the fly, without swapping the cylinder. If you need more force, stepping up to the 63 mm bore provides 1559 N of push at 0.5 MPa. For a fixed-stroke application where adjustability is not required, the standard SC50X100 is a simpler, cost-effective alternative. This cylinder is a direct replacement for another AirTAC SCJ50X100-50S with a PT port, basic mount, and magnet. For strokes of 300 mm or more, consider an external guide to protect the 20 mm rod from side-load bending.
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 SCJ50X100-50S FAQ
The push force is 982 N at 0.5 MPa, 1374 N at 0.7 MPa, and 1767 N at the maximum operating pressure of 0.9 MPa. The pull force on the retract stroke is 825 N at 0.5 MPa due to the area of the 20 mm piston rod.
Physically, the mounting footprint is similar, but the SCJ body is longer to house the adjusting mechanism. You can replace an SC50X100 with this SCJ50X100-50S if you need the adjustable stroke feature and have space for the 194 mm body length. Ensure the port thread (PT1/4) and magnet option match your sensor setup.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SCJ Adjustable-Stroke Cylinders
Request a Quote for Airtac SCJ50 Standard Cylinder SCJ50X100-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.