This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X460-75, 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 SIJ125X460-75
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X460-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 460mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ125X460-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke460 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAIJ125X460-75
- 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 SIJ125X460-75
The AirTAC SIJ125X460-75 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued and superseded by the direct replacement SAIJ125X460-75. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, giving a usable forward travel of 385-460 mm (the 460 mm nominal is the maximum).
The SAIJ replacement reuses the exact ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this SKU lacks a -S magnet and cannot accept a sensor; the stop screw sets end position but is not a load lock.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X460-75 Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X460-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X460-75 |
| Bore size | Ø125 mm |
| Stroke | 460 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 SAIJ125X460-75 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 SAIJ125X460-75 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 SIJ125X460-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×460 | 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 SIJ125X460-75 Is Used
Press Fit Tuning
Allows operators to fine-tune the extend stroke down to 385 mm on-site, ensuring precise contact pressure without re-engineering the entire fixture.
Variable Carton Sealing
Accommodates fluctuating package heights by trimming the forward stroke up to 75 mm, preventing over-travel damage to delicate containers.
Adjustable Stops
Ideal for material handling lines where end-of-stroke positions must be frequently modified for different product runs without changing cylinders.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X460-75 with the SAIJ125X460-75
To replace the discontinued SIJ125X460-75, order the direct replacement SAIJ125X460-75, which matches the 460 mm stroke, 75 mm adjust window, 125 mm bore, and G1/2 port. Choose the 75 mm adjust window if your application requires trimming the extend stroke down to 385 mm on-site. Mounting attachments (Basic, FA, LB, TC) transfer directly. Because this unit has no -S suffix, it cannot support magnetic switches. Finally, at a 460 mm stroke, mind the side-load and rod-bending limits—use external guides to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X460-75
- ✓ 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 SIJ125X460-75 FAQ
Yes, the SIJ125X460-75 is discontinued. The direct replacement is the SAIJ125X460-75, offering the same ISO 15552 interface, 460 mm stroke, 75 mm adjust window, and G1/2 port. The SAIJ family also features an upgraded piston seal for longer life.
The external stop screw allows trimming the extend stroke by up to 75 mm on-site (usable range 385-460 mm). The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X460-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X460-75 replacement — usually within 7-8 hours.