This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X160-20, 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.

The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X160-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 160mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X160-20, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SIJ32X160-20 is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32 mm bore and 160 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 140-160 mm extension. Because this SIJ series is end-of-life, the direct replacement is the SAIJ32X160-20, retaining the same interface, force, and adjustability.
The SAIJ successor introduces an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. Note this non-magnetic SKU cannot accept a switch, and the external stop sets end position only—it is not a load lock.
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X160-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X160-20 |
| Bore size | Ø32 mm |
| Stroke | 160 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 SAIJ32X160-20 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAIJ32X160-20 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | 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).
Allows operators to fine-tune the 140-160 mm extend reach of a sorting diverter gate on-site, ensuring packages deflect accurately into the correct lane without re-mounting the cylinder.
Provides a variable hard stop for lightweight product accumulation on a conveyor, letting technicians trim the 20 mm window to accommodate different carton lengths on the fly.
Used in low-force clamping fixtures where the exact 32 mm bore contact point varies by part run, utilizing the external screw to dial in the precise extend position.
To replace the discontinued SIJ32X160-20, order the SAIJ32X160-20; it drops in directly with the same ISO 15552 mounting dimensions, 32 mm bore, 160 mm stroke, and 20 mm adjust window. Choose the 20 mm adjust window if your extend stroke needs field tuning between 140 and 160 mm. Mounting options include FA, LB, and TC brackets. Because this SKU lacks the -S suffix, it cannot accept a magnetic switch. For stroke lengths of 300 mm or greater, verify side-load limits to prevent rod binding.
Replacement checklist
Yes, the SIJ32X160-20 is discontinued. The direct replacement is the SAIJ32X160-20. It shares the same ISO 15552 interface, 32 mm bore, 160 mm stroke, 20 mm adjust window, and G1/8 port, but features an upgraded piston seal for longer life.
The external stop screw allows you to trim the extend stroke by up to 20 mm on-site, giving a usable extension range of 140-160 mm. The stop sets end position and is not a load lock.
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X160-20 replacement — usually within 7-8 hours.