Airtac SCJ250 Standard Cylinder SCJ250X150-10S
The AirTAC Airtac SCJ250 Standard Cylinder SCJ250X150-10S 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. Ø250mm bore, 150mm nominal stroke, PT1" ports and adjustable end cushioning.
- BoreØ250 mm
- Nominal stroke150 mm
- Stroke adjust-10 mm
- Port sizePT1"
- Rod threadM42×2
- CushionAdjustable, 40 mm
About the Airtac SCJ250 Standard Cylinder SCJ250X150-10S
The SCJ250X150-10S delivers massive force in a field-adjustable package, generating 24544 N of push at 0.5 MPa and up to 44178 N at 0.9 MPa. Its 10 mm rear adjusting screw lets you fine-tune the stroke end position during commissioning or after mechanical wear, without replacing the cylinder or adding external hard stops.
This ISO 6430 class tie-rod cylinder uses a 50 mm diameter piston rod with an M42x2 thread and features a 40 mm adjustable air cushion for smooth deceleration. The built-in magnet (indicated by the -S suffix) allows direct mounting of CMSG/DMSG/EMSG sensors along the barrel for reliable, non-contact position sensing.
Airtac SCJ250 Standard Cylinder SCJ250X150-10S Technical Specifications
| Model | Airtac SCJ250 Standard Cylinder SCJ250X150-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder (ISO 6430 class) |
| Bore size | Ø250 mm |
| Nominal stroke | 150 mm |
| Stroke adjustment | Up to 10 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1" |
| Rod thread | M42×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 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 (Ø250mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 24544 N | 23562 N |
| 0.7 MPa | 34361 N | — |
| Max (@1.0 MPa) | 5006 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 SCJ250 Standard Cylinder SCJ250X150-10S
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 250 | Bore size in mm. |
| ×150 | 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 SCJ250 Standard Cylinder SCJ250X150-10S Is Used
Heavy Press End-Stop Tuning
Fine-tune the final pressing depth in a large assembly or forming press by adjusting the rear screw, ensuring consistent part dimensions as tooling wears.
Industrial Gate Valve Positioning
Set the precise open/closed position of a large gate or knife valve in bulk material handling, allowing for field adjustment to compensate for seal compression.
Structural Test Rig Setup
Use the adjustable stroke to set a precise, repeatable deflection limit in a structural testing machine, with the built-in magnet signaling the end of the test cycle.
Is the Airtac SCJ250 Standard Cylinder SCJ250X150-10S the Right Cylinder?
Choose the SCJ250 for applications demanding the highest force output in the SCJ range. If your load calculation is slightly lower, stepping down to the SCJ200 (15708 N push at 0.5 MPa) can reduce air consumption and physical footprint. This model is ideal when you need the 150 mm nominal stroke but require a precise, repeatable end-point that can be dialed in by up to 10 mm. For a fixed, non-adjustable stroke, the standard SC series is a simpler alternative. A direct replacement must match the 250 mm bore, 150 mm stroke, 10 mm adjust range, PT port thread, basic mounting, and integrated magnet.
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 SCJ250 Standard Cylinder SCJ250X150-10S FAQ
At 0.5 MPa, the push force is 24544 N and the pull force is 23562 N. The maximum push force at the 0.9 MPa operating limit is 44178 N. The pull force is lower because the rod reduces the effective piston area on the return stroke.
A screw in the rear cap acts as an internal, adjustable end-stop for the piston. Turning the screw changes the retracted stroke end position by up to 10 mm. This lets you fine-tune the cylinder's stop point on the machine without changing the physical mounting or the nominal 150 mm stroke.
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 SCJ250 Standard Cylinder SCJ250X150-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.