This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X60-30, 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 SIJ125X60-30
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X60-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 60mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ125X60-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke60 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAIJ125X60-30
- 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 SIJ125X60-30
The AirTAC SIJ125X60-30 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. The external stop screw lets you trim the extend stroke by up to 30mm on-site, setting a precise 30-60mm end position. It features a 32mm rod, G1/2 port, and 40mm adjustable cushions. The direct replacement is the SAIJ125X60-30, matching the bore, force, and ISO 15552 mounting interface.
The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. This SKU lacks a -S magnet, so it cannot take a magnetic switch. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X60-30 Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X60-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X60-30 |
| Bore size | Ø125 mm |
| Stroke | 60 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 SAIJ125X60-30 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 SAIJ125X60-30 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 SIJ125X60-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×60 | 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 SIJ125X60-30 Is Used
Press Fit Tuning
Allows operators to dial in the exact 30-60mm extend position for pressing bearings without machining custom spacers.
Variable Depth Sealing
Adjusts the extend end-point on-site to accommodate different box heights or seal depths in packaging lines.
Forming Stroke Limit
Trims the extend stroke by up to 30mm to prevent over-travel when forming materials of varying thicknesses.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X60-30 with the SAIJ125X60-30
To replace the discontinued SIJ125X60-30, order the direct replacement SAIJ125X60-30, keeping the identical ISO 15552 interface, G1/2 port, and 30mm adjust window. Choose the 30mm adjust window if your extend stroke needs on-site tuning between 30 and 60mm. Reuse FA, LB, or TC mounts. Because this SKU has no -S magnet, it cannot accept legacy CS1-B/DS1-B sensors. For strokes over 300mm, verify side-load guidance. Remember the stop screw is not a lock; for load holding on air loss, use an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X60-30
- ✓ 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 SIJ125X60-30 FAQ
Yes, the SIJ125X60-30 is discontinued. The direct replacement is the SAIJ125X60-30. It shares the same ISO 15552 interface, 125mm bore, 60mm nominal stroke, 30mm adjust window, G1/2 port, and mounting options. The SAIJ family also adds upgraded piston seals and SAIL/BSAI lock variants.
The theoretical max is 1251kgf at 1.0MPa. The external stop screw lets you trim the extend stroke by up to 30mm on-site, giving a usable 30-60mm stroke. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X60-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X60-30 replacement — usually within 7-8 hours.