This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X60-20, 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 SIJ125X60-20
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X60-20 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 SAIJ125X60-20, 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 → SAIJ125X60-20
- 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 SIJ125X60-20
The AirTAC SIJ125X60-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. It uses an external stop screw to trim the extend stroke by up to 20 mm on-site, yielding a usable 40-60 mm extend window from the 60 mm nominal maximum. The direct replacement is the SAIJ125X60-20, matching the bore, stroke, force, port, and mounting.
The SAIJ successor retains the ISO 15552 mounting interface so existing brackets (FA, LB, TC) reuse directly, and upgrades to a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note this SKU lacks a -S magnet and cannot accept a sensor; additionally, the stop screw sets end position but is not a load lock, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X60-20 Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X60-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X60-20 |
| 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 SAIJ125X60-20 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 SAIJ125X60-20 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 SIJ125X60-20
| 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 SIJ125X60-20 Is Used
Press Fit Tuning
Dialing in a 40-60 mm press fit where a 20 mm on-site stroke trim compensates for material thickness variance without swapping cylinders.
Divertor Arm Adjustment
Adjusting a divertor arm end position on-site to handle varying package sizes, utilizing the 20 mm extend stroke reduction window.
Pallet Stop Positioning
Fine-tuning a pallet stop location within a 40-60 mm range to align with different pallet depths using the external stop screw.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X60-20 with the SAIJ125X60-20
To replace the discontinued SIJ125X60-20, order the direct replacement SAIJ125X60-20, which preserves the 125 mm bore, 60 mm nominal stroke, 20 mm adjust window, G1/2 port, and ISO 15552 mounting. Select the 20 mm adjust window if you need on-site tuning of the extend stroke within the 40-60 mm range. Reuse existing FA, LB, or TC mounts. Because this SKU has no -S magnet, it cannot accept legacy CS1-B or DS1-B sensors. For stroke lengths under 300 mm, side-load risks are minimal. The stop screw sets the end position but is not a lock; for load holding on air loss, specify an external rod lock, pilot-operated check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X60-20
- ✓ 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 SIJ125X60-20 FAQ
Yes, the SIJ125X60-20 is discontinued. The direct replacement is the SAIJ125X60-20, which matches the 125 mm bore, 60 mm stroke, 20 mm adjust window, G1/2 port, and ISO 15552 mounting interface.
This 125 mm bore cylinder features a 20 mm adjust window (usable extend stroke 40-60 mm via external stop screw). It uses a G1/2 port and 40 mm adjustable cushions. The stop screw sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X60-20
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X60-20 replacement — usually within 7-8 hours.