This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X160-75, 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 SIJ125X160-75
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X160-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 160mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ125X160-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAIJ125X160-75
- 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 SIJ125X160-75
The AirTAC SIJ125X160-75 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 75 mm on-site, yielding a usable 85-160 mm extend window from the 160 mm nominal maximum.
The direct replacement is the SAIJ125X160-75, retaining the same ISO 15552 mounting interface, bore, stroke, adjust window, and force. The SAIJ upgrade incorporates a two Y-shaped one-way piston seal for low start-up pressure and long life. As a plain non-magnetic SKU (no -S suffix), this cylinder cannot accept a magnetic switch. The stop screw sets the end position but is not a load lock; for held loads use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X160-75 Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X160-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X160-75 |
| Bore size | Ø125 mm |
| Stroke | 160 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 SAIJ125X160-75 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 SAIJ125X160-75 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 SIJ125X160-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×160 | 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 SIJ125X160-75 Is Used
Press Fit Tuning
Allows operators to fine-tune the extend stroke on-site for pressing bearings, accommodating material thickness variations without changing the entire cylinder.
Variable Length Diverter
Adjusts the extend position of a sorting diverter on a conveyor to handle different package sizes dynamically on the production floor.
Adjustable End Stop Pusher
Sets precise end positions for pushing pallets into test fixtures, permitting quick 85-160 mm stroke adjustments as pallet dimensions change.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X160-75 with the SAIJ125X160-75
To replace the discontinued SIJ125X160-75, order the direct replacement SAIJ125X160-75, keeping the identical ISO 15552 interface, G1/2 port, and 75 mm adjust window. Choose the 75 mm adjust window if your application requires trimming the extend stroke down to 85 mm; otherwise, a fixed SAI cylinder is simpler. Mounting options include FA, LB, and TC brackets. Because this SKU lacks the -S suffix, it cannot support magnetic sensing. For strokes of 300 mm or longer, verify side-load limits to prevent excessive rod wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X160-75
- ✓ 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 SIJ125X160-75 FAQ
Yes, the SIJ125X160-75 is discontinued. The direct replacement is the SAIJ125X160-75. It shares the same ISO 15552 interface, 125 mm bore, 160 mm nominal stroke, 75 mm adjust window, and G1/2 port, while adding an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw allows trimming the extend stroke by up to 75 mm on-site, giving a usable extend window of 85-160 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X160-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X160-75 replacement — usually within 7-8 hours.