This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X200-30S, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ125X200-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAIJ125X200-30S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S
The AirTAC SIJ125X200-30S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 170-200 mm window from the 200 mm nominal maximum. It features a G1/2 port, M27x2 rod thread, 40 mm adjustable cushions, and a -S piston magnet for legacy CS1-B/DS1-B sensors.
The direct replacement is the SAIJ125X200-30S, retaining the same ISO 15552 mounting interface, force, and adjust window. The SAIJ family upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Note the stop screw sets end position only; it is not a load lock, so use an external rod lock for held loads.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X200-30S |
| Bore size | Ø125 mm |
| Stroke | 200 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ125X200-30S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / 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 | |
The SAIJ125X200-30S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S Is Used
Press Fit Tuning
Allows operators to dial in the exact 170-200 mm extend position on-site for pressing bearings without machining custom spacers.
Variable Length Diverter
Adjusts the extend stop to deflect varying package sizes on a sorting line, providing precise 30 mm reach compensation.
Adjustable End Stop
Sets a hard mechanical end position for pallets that occasionally vary in height, trimming the stroke by up to 30 mm as needed.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S with the SAIJ125X200-30S
To replace the discontinued SIJ125X200-30S, order the direct replacement SAIJ125X200-30S, which preserves the G1/2 port, 200 mm stroke, and 30 mm adjust window. Select the 30 mm adjust window if your application needs field stroke tuning between 170-200 mm. Mounting options include FA, LB, and TC brackets. The -S suffix confirms a piston magnet is present for CS1-B/DS1-B switches (the SAIJ uses current switches). For strokes of 300 mm or longer, verify side-load guidance to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X200-30S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X200-30S FAQ
Yes, the SIJ125X200-30S is discontinued. The direct replacement is the SAIJ125X200-30S, offering the same ISO 15552 interface, 125 mm bore, 200 mm stroke, 30 mm adjust window, and G1/2 port. The SAIJ upgrades the piston seal to two Y-shaped one-way elements for longer life.
The external stop screw provides a 30 mm adjust window, allowing you to shorten the extend stroke from the 200 mm nominal maximum down to 170 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X200-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X200-30S replacement — usually within 7-8 hours.