This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X1700-30, 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 SIJ125X1700-30
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X1700-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 1700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ125X1700-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke1700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAIJ125X1700-30
- 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 SIJ125X1700-30
The AirTAC SIJ125X1700-30 is a double-acting double-rod ISO 15552 adjustable-stroke cylinder, now discontinued. Its external stop screw lets you trim the extend stroke by up to 30 mm on-site, giving a usable 1670-1700 mm window from the 1700 mm nominal maximum. Note that 1700 mm exceeds the 1500 mm standard maximum, making this a non-standard made-to-order unit requiring external guides to prevent rod bending.
The direct replacement is the SAIJ125X1700-30, retaining the same ISO 15552 mounting interface, force, and adjust window. The SAIJ family upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. This SKU has no -S magnet and cannot take a sensor; the stop sets end position but is not a load lock, so use an external rod lock for held loads.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X1700-30 Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X1700-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X1700-30 |
| Bore size | Ø125 mm |
| Stroke | 1700 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 SAIJ125X1700-30 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 SAIJ125X1700-30 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 SIJ125X1700-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×1700 | 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 SIJ125X1700-30 Is Used
Long-reach press ejection
Tuning the 30 mm extend stop on a 1700 mm stroke to dial in the exact ejection position of heavy stampings without re-mounting the cylinder.
Extended transfer positioning
Adjusting the end-of-stroke contact point on a long transfer line where product sizes vary, using the 30 mm window to set the precise 1670-1700 mm push distance.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X1700-30 with the SAIJ125X1700-30
To replace the discontinued SIJ125X1700-30, order the direct replacement SAIJ125X1700-30, keeping the 30 mm adjust window and G1/2 port. Reuse FA, LB, or TC mounts via the ISO 15552 interface. As 1700 mm exceeds the 1500 mm standard, it is made-to-order; at this length, add external guides to prevent rod bending. Without a -S magnet, this SKU cannot fit sensors. The stop screw trims extend position but is not a lock—use SAIL or BSAI for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X1700-30
- ✓ 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 SIJ125X1700-30 FAQ
Yes, the SIJ125X1700-30 is discontinued. The direct replacement is the SAIJ125X1700-30, sharing the same ISO 15552 interface, 1700 mm stroke, 30 mm adjust window, G1/2 port, and force. The SAIJ upgrades the piston seal to two Y-shaped one-way elements for longer life.
The external stop screw provides a 30 mm adjust window, shortening the extend stroke from 1700 mm down to 1670 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X1700-30
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X1700-30 replacement — usually within 7-8 hours.