This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X275-40, 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 SIJ32X275-40
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X275-40 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 275mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X275-40, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke275 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X275-40
- 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 SIJ32X275-40
The AirTAC SIJ32X275-40 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 40 mm on-site, yielding a usable 235-275 mm extend window from the 275 mm nominal maximum. The direct replacement is the SAIJ32X275-40, matching the 32 mm bore, G1/8 port, M10x1.25 rod thread, and 27 mm adjustable cushions.
The SAIJ upgrade features a two Y-shaped one-way 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 but is not a load lock.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X275-40 Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X275-40 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X275-40 |
| Bore size | Ø32 mm |
| Stroke | 275 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 SAIJ32X275-40 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 SAIJ32X275-40 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 SIJ32X275-40
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×275 | 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 SIJ32X275-40 Is Used
Variable-Depth Spot Facing
Machine operators trim the 275 mm extend stroke by up to 40 mm on-site to match varying casting depths without swapping the entire cylinder.
Adjustable Transfer Pusher
A packaging line dials in the exact push-off distance for different carton widths using the external stop screw.
Prototype Forming Press
Test setups benefit from the 235-275 mm usable extend window to iterate on punch depth before finalizing tooling.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X275-40 with the SAIJ32X275-40
To replace the discontinued SIJ32X275-40, order the direct replacement SAIJ32X275-40, reusing your existing ISO 15552 FA, LB, or TC mounts. The 40 mm adjust window is ideal if your exact end-position varies by up to 40 mm; for longer trims, select a larger adjust figure. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch—add -S if you need legacy CS1-B/DS1-B sensor accuracy. For strokes of 275 mm (>=300 mm threshold approaches), verify side-load alignment to prevent rod binding. Remember the stop screw is not a lock; for held loads use SAIL/BSAI or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X275-40
- ✓ 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 SIJ32X275-40 FAQ
Yes, the SIJ32X275-40 is discontinued. The direct replacement is the SAIJ32X275-40. It shares the same ISO 15552 interface, 32 mm bore, 275 mm stroke, 40 mm adjust window, G1/8 port, and force ratings. The SAIJ also adds an upgraded two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw provides a 40 mm adjust window, allowing you to shorten the 275 mm nominal extend stroke down to 235 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X275-40
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X275-40 replacement — usually within 7-8 hours.