This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI125X1060SCB, 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 SI125 Standard Cylinder SI125X1060SCB
The AirTAC SI125 Standard Cylinder SI125X1060SCB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 1060mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI125X1060SCB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke1060 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAI125X1060SCB
- 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 SI125 Standard Cylinder SI125X1060SCB
The AirTAC SI125X1060SCB is a discontinued double-acting ISO 15552 profile cylinder with a 125 mm bore and 1060 mm stroke. Generating 6136 N push force at 0.5 MPa via a G1/2 port, it is replaced by the SAI125X1060SCB. This direct successor retains the exact CB clevis mounting, M27x2 rod thread, and output force.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants the SI lacked. Your -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI125 Standard Cylinder SI125X1060SCB Technical Specifications
| Model | Airtac SI125 Standard Cylinder SI125X1060SCB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI125X1060SCB |
| Bore size | Ø125 mm |
| Stroke | 1060 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 SAI125X1060SCB 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 SAI125X1060SCB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI125 Standard Cylinder SI125X1060SCB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×1060 | 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 SI125 Standard Cylinder SI125X1060SCB Is Used
Heavy Material Lifts
Drives large vertical platform lifts and heavy pallet elevators, utilizing the 6136 N push force at 0.5 MPa to move substantial loads over the extended 1060 mm travel.
Automated Press Staging
Actuates multi-stage press feeding systems where a robust 125 mm bore and long 1060 mm stroke are required to position heavy workpieces accurately into machining centers.
Large Assembly Indexing
Indexes heavy automotive or industrial sub-assemblies along conveyor lines, relying on the CB clevis mount to accommodate pivoting movements during transfer.
Replacing the Airtac SI125 Standard Cylinder SI125X1060SCB with the SAI125X1060SCB
To replace the SI125X1060SCB, order the SAI125X1060SCB. Verify the ISO 15552 interface, 125 mm bore, 1060 mm stroke, G1/2 port, and CB clevis mount. The -S magnet enables CS1-B/DS1-B sensors (SAI uses current AirTAC switches). For sizing, the 125 mm bore yields 6136 N push @0.5 MPa; dropping to an 80 mm bore gives 2513 N. Note: a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or SAIL/BSAI variant. At 1060 mm, prevent rod bending by using an external guide to handle side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI125X1060SCB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI125 Standard Cylinder SI125X1060SCB FAQ
Yes, the AirTAC SI125X1060SCB is discontinued. The direct replacement is the SAI125X1060SCB. It is dimensionally interchangeable per ISO 15552, retaining the same 125 mm bore, 1060 mm stroke, G1/2 port, CB mounting, and output force.
This double-acting cylinder has a G1/2 port. It delivers 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, 11045 N push at 0.9 MPa, and a theoretical max force of 1251 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI125X1060SCB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI125X1060SCB replacement — usually within 7-8 hours.