This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X250-75, 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 250mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X250-75, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke250 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X250-75
- 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75
The AirTAC SIJ32X250-75 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 175-250 mm extend window from the 250 mm nominal maximum. The direct replacement is the SAIJ32X250-75, matching the interface, force, and adjustability.
The SAIJ successor retains ISO 15552 mounting interchange and adds an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. Note this non-magnetic SKU cannot take a switch, and the stop screw sets end position only—it is not a load lock; use SAIL or an external rod lock for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X250-75 |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ32X250-75 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X250-75 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×250 | 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 SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75 Is Used
Variable Pitch Push Stations
Trimming the extend stroke by up to 75 mm on-site allows operators to set precise push distances for parts with varying widths without changing the entire actuator.
Tunable Component Seating Jigs
Field-tuning the end position prevents over-travel when seating delicate components, using the external stop to set a hard physical limit.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75 with the SAIJ32X250-75
To replace the discontinued SIJ32X250-75, order the direct replacement SAIJ32X250-75, keeping the 250 mm nominal stroke and 75 mm adjust window intact. Select the adjust window based on your maximum required on-site trim; here you can shorten the extend stroke by up to 75 mm. Mounting options include FA, LB, and TC brackets. Because this SKU lacks the -S magnet, it cannot accept a magnetic switch for position sensing. For strokes of 300 mm or longer, verify side-load limits to prevent excessive guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X250-75
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X250-75 FAQ
Yes, the SIJ32X250-75 is discontinued. The direct replacement is the SAIJ32X250-75, which matches the ISO 15552 interface, 32 mm bore, 250 mm stroke, 75 mm adjust window, G1/8 port, and mounting options.
The external stop screw window is 75 mm, allowing the extend stroke to be shortened from the 250 mm nominal maximum down to 175 mm on-site.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X250-75
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X250-75 replacement — usually within 7-8 hours.