This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X50-30H, 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 SIJ32X50-30H
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X50-30H is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 50mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ32X50-30H, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke50 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAIJ32X50-30H
- 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 SIJ32X50-30H
The AirTAC SIJ32X50-30H is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder featuring a 32mm bore and a 50mm maximum extend stroke. An external stop screw allows you to trim the extend stroke by up to 30mm on-site, yielding a usable 20-50mm stroke window. The -H designation specifies a Viton/FKM seal for 0 to 150C high-temperature environments.
As SIJ is end-of-life, the direct replacement is the SAIJ32X50-30H, retaining the same ISO 15552 mounting interface, bore, force, and adjust window. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Because this SKU lacks a -S suffix, it has no magnet and cannot accept a position sensor. The stop screw sets end position only; it is not a load lock, so use an external rod lock or SAIL/BSAI variant to hold loads on air loss.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-30H Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-30H |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X50-30H |
| Bore size | Ø32 mm |
| Stroke | 50 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 SAIJ32X50-30H 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 SAIJ32X50-30H 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 SIJ32X50-30H
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | 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 SIJ32X50-30H Is Used
Heat Chamber Clamping
Using the Viton -H seal for 0-150C environments, this cylinder clamps parts inside thermal chambers while the 30mm stop screw dials in the exact grip depth on-site.
Adjustable Ejector Stroke
Provides a 20-50mm ejection stroke in tight machinery; the external screw allows rapid 30mm adjustments to accommodate varying product heights without swapping the cylinder.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-30H with the SAIJ32X50-30H
To replace the discontinued SIJ32X50-30H, order the exact direct replacement SAIJ32X50-30H to reuse your existing ISO 15552 FA, LB, or TC mounts without machining. The 30mm adjust window is ideal for dialing in precise 20-50mm extend endpoints in the field. Since this non-magnetic SKU cannot take a sensor, add a -S suffix model if you need legacy CS1-B/DS1-B switch accuracy. For strokes >=300mm, verify side-load guidance to prevent rod binding. Remember the external stop is not a brake; pilot-operated check valves or SAIL/BSAI lock variants are required for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X50-30H
- ✓ 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 SIJ32X50-30H FAQ
Yes, the SIJ32X50-30H is discontinued. The direct replacement is the SAIJ32X50-30H. It shares the identical ISO 15552 interface, 32mm bore, 50mm nominal stroke, 30mm adjust window, G1/8 port, and mounting footprints, while adding an upgraded SAI piston seal.
The nominal 50mm extend stroke is the maximum; the external stop screw shortens it by up to 30mm on-site, giving a 20-50mm usable window. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X50-30H
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X50-30H replacement — usually within 7-8 hours.