This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X125-60, 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 SIJ125X125-60
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X125-60 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 125mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ125X125-60, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke125 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAIJ125X125-60
- 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 SIJ125X125-60
The AirTAC SIJ125X125-60 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. Its external stop screw lets you trim the extend stroke by up to 60 mm on-site, giving a usable stroke of 65-125 mm from the 125 mm nominal maximum. The direct replacement is the SAIJ125X125-60, matching the interface, force, and mounting.
The stop screw sets the end position but is not a load lock; use an external rod lock or SAIL/BSAI for held loads. This SKU lacks a -S magnet and cannot take a switch. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X125-60 Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X125-60 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X125-60 |
| Bore size | Ø125 mm |
| Stroke | 125 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 SAIJ125X125-60 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 SAIJ125X125-60 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 SIJ125X125-60
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×125 | 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 SIJ125X125-60 Is Used
Press Fit Depth Tuning
Trimming the extend stroke by up to 60 mm on-site allows precise depth setting for press-fit operations without machining custom spacers.
Variable Height Pallet Stops
Adjustable end positioning accommodates different pallet heights in conveying lines, tuning the 125 mm stroke to exact stopping points.
Adjustable Forming Stroke
Packaging equipment can dial in the extend stroke between 65 and 125 mm to handle varied container sizes on the same line.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X125-60 with the SAIJ125X125-60
To replace the discontinued SIJ125X125-60, order the direct replacement SAIJ125X125-60, keeping the same ISO 15552 mounting interface (Basic, FA, LB, TC) and G1/2 port. Size both ways using 0.5 MPa force: the 100 mm bore pushes 3927 N (pull 3681 N), while the 160 mm bore pushes 10053 N (pull 9425 N). Choose the 60 mm adjust window if you need to trim the extend stroke down to a 65 mm minimum on-site. Because this SKU has no -S magnet, it cannot accept a magnetic switch; add the -S suffix if you need sensing. For strokes of 300 mm or longer, verify your side-load limits to prevent guide wear. The stop screw sets end position only and does not hold loads on air loss.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X125-60
- ✓ 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 SIJ125X125-60 FAQ
Yes, the SIJ125X125-60 is discontinued. The direct replacement is the SAIJ125X125-60. It shares the same ISO 15552 interface, 125 mm bore, 125 mm stroke, 60 mm adjust window, G1/2 port, and mounting options. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life and lower start-up pressure.
The external stop screw allows you to trim the extend stroke by up to 60 mm on-site, yielding a usable stroke of 65-125 mm. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X125-60
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X125-60 replacement — usually within 7-8 hours.