Airtac SCJ100 Standard Cylinder SCJ100X250-10S
The AirTAC Airtac SCJ100 Standard Cylinder SCJ100X250-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø100mm bore, 250mm nominal stroke, PT1/2 ports and adjustable end cushioning.
- BoreØ100 mm
- Nominal stroke250 mm
- Stroke adjust-10 mm
- Port sizePT1/2
- Rod threadM20×1.5
- CushionAdjustable, 29 mm
About the Airtac SCJ100 Standard Cylinder SCJ100X250-10S
The SCJ100X250-10 is a double-acting, single-rod pneumatic cylinder with a 100 mm bore and a 250 mm nominal stroke, delivering a substantial 3927 N of push force at 0.5 MPa. Its defining feature is the rear-cap adjusting screw, which provides up to 10 mm of fine-tuning for the stroke end position, allowing machine builders to dial in the exact stopping point without swapping the cylinder or adding external hard stops.
This model includes a built-in magnet (-S suffix), enabling direct mounting of CMSG, DMSG, or EMSG reed and solid-state sensors along the tie-rod barrel for precise, non-contact position feedback. The 25 mm diameter piston rod and PT1/2 port ensure robust flow and force transmission, while the 29 mm air cushion at each end decelerates the piston smoothly, protecting the end caps during high-cycle operation.
Airtac SCJ100 Standard Cylinder SCJ100X250-10S Technical Specifications
| Model | Airtac SCJ100 Standard Cylinder SCJ100X250-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø100 mm |
| Nominal stroke | 250 mm |
| Stroke adjustment | Up to 10 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 SCJ100X250-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 100 | Bore size in mm. |
| ×250 | Nominal (maximum) stroke length in mm. |
| -10 | 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 SCJ100X250-10S Is Used
End-of-Line Palletizing
A palletizing pusher arm needs a precise, repeatable final position to square up boxes without crushing them. The 10 mm adjuster lets operators fine-tune the stroke end during setup or after a product size changeover, ensuring consistent stack quality.
Diverter Gate Actuation
Driving a diverter gate on a conveyor system requires a powerful, cushioned stroke. The 3927 N push force easily handles heavy gates, and the adjustable stroke end compensates for mechanical wear on the gate stop over thousands of cycles, maintaining a perfect seal.
Clamping for Welding Fixtures
In a robotic welding cell, a clamp must close to a specific depth on varying part batches. The rear screw provides a quick, tool-free adjustment to set the clamp's closed position, while the built-in magnet confirms full closure via a sensor, preventing the robot from welding on an unclamped part.
Is the Airtac SCJ100 Standard Cylinder SCJ100X250-10S the Right Cylinder?
With a 250 mm stroke, this SCJ100 cylinder operates well within its standard range, but at this extension, careful alignment is essential to prevent side-loading and rod bending. If your application involves a significant off-axis load, consider pairing the cylinder with an external guide rail or switching to a guided cylinder assembly. For a higher force requirement, stepping up to the SCJ125 bore provides 6136 N of push force at the same 0.5 MPa pressure.
This SCJ100X250-10 is a direct replacement for an existing AirTAC SCJ cylinder of the same 100 mm bore, 250 mm nominal stroke, and 10 mm adjust range with a PT port and built-in magnet. If your process does not require field-adjustable stroke, the fixed-stroke SC100X250-S is a simpler, more cost-effective alternative. The basic mounting configuration allows you to use standard SCJ accessories like the FA front flange or LB foot mount.
Adjustable-stroke checklist
- ✓ Need to fine-tune stroke on the line?
- ✓ Nominal stroke + adjust range (-10)
- ✓ 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 SCJ100X250-10S FAQ
At the standard operating pressure of 0.5 MPa, the push force is 3927 N and the pull force is 3681 N. The pull force is lower because the 25 mm piston rod reduces the effective area on the return stroke. The maximum push force at 0.9 MPa is 7068 N.
You can, provided the mounting space allows for the slightly longer SCJ body. The SCJ100X250-10 has a nominal stroke of 250 mm with a 10 mm adjustment range. It is a direct dimensional match for an SCJ of the same bore, stroke, and adjust range, but it is not a drop-in replacement for a fixed-stroke SC100X250, as the body length and end-cap design differ.
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 SCJ100 Standard Cylinder SCJ100X250-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.