Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S
The AirTAC SAIJ125X200-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 6136N of push force at 0.5MPa and features a 170-200mm usable travel window, letting you trim the effective stroke by up to 30mm during commissioning without swapping the cylinder. The integrated -S magnet supports AirTAC CMSE reed and DMSE electronic sensors in the dual-side barrel grooves.
This model uses a PT tapered port and a robust 32mm carbon steel rod with an M27x2 thread, providing high rigidity against side loads. It relies on standard variable air cushions at both ends for end-of-stroke deceleration. The rear stopper sets the retract position but does not lock the load without live air; for position holding, consider an external rod lock or the SAIL series.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S Is Used
Product Changeovers
Dial in the 170-200mm travel window on the fly to accommodate different part lengths on the same production line without changing cylinders.
Machine Setup Tuning
Fine-tune the retract end-position during commissioning to achieve exact alignment, avoiding the need to bolt on external mechanical stops.
Heavy Forming Operations
Leverage the 6136N push force at 0.5MPa for pressing and forming tasks where precise end-of-stroke positioning is critical.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S the Right Cylinder?
Select this 125mm bore cylinder when a 100mm bore (offering 3927N push at 0.5MPa) lacks thrust, but a 160mm bore is physically too large. The 30mm adjustment window is ideal for product changeovers requiring variable end-stops, unlike a fixed-stroke SAI cylinder. To match this ISO 15552 footprint, specify the 125mm bore, 200mm stroke, PT port, and -S magnet.
Because the 200mm stroke is below the 300mm side-load threshold, the 32mm rod handles the travel well, though external guides remain recommended for heavy off-center loads. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2 kits.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S FAQ
At 0.5MPa it provides 6136N push and 5734N pull force, scaling up to 11045N push at 0.9MPa. The operational speed range for this 125mm bore is 30-500mm/s.
The rear adjuster acts as a mechanical stop, allowing you to shorten the 200mm nominal stroke by up to 30mm, yielding a 170-200mm travel window. It only sets the end position and does not hold the load without live air pressure.
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 SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125X200-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.