This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ32X50-50S, 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 SIJ32X50-50S
The AirTAC SIJ32 Double Rod Adjustable Cylinder SIJ32X50-50S 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 SAIJ32X50-50S, 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 → SAIJ32X50-50S
- 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 SIJ32X50-50S
The AirTAC SIJ32X50-50S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 32mm bore, G1/8 port, and M10x1.25 rod thread. An external stop screw lets you trim the 50mm extend stroke by up to 50mm on-site. The direct replacement is the SAIJ32X50-50S, retaining the same interface, force, and magnet.
The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The -S suffix provides a piston magnet for legacy CS1-B/DS1-B switches. The stop screw sets end position but is not a load lock; use SAIL or BSAI variants for held loads.
Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-50S Technical Specifications
| Model | Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ32X50-50S |
| 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 SAIJ32X50-50S 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 SAIJ32X50-50S 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 SIJ32X50-50S
| 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 SIJ32X50-50S Is Used
Adjustable Clamping
Parts clamping requiring precise on-site extend stroke tuning to accommodate varying material thicknesses without changing the cylinder.
Transfer Diverters
Conveyor diverting mechanisms where the extend end position must be fine-tuned on-site to match product dimensions accurately.
Packaging Pushers
Carton pushing stations needing field stroke trimming to handle different box sizes while maintaining precise end-position stops.
Replacing the Airtac SIJ32 Double Rod Adjustable Cylinder SIJ32X50-50S with the SAIJ32X50-50S
Replace the discontinued SIJ32X50-50S directly with the SAIJ32X50-50S (same 32mm bore, 50mm stroke, 50mm adjust window, G1/8 port, and ISO 15552 mounting). The 50mm adjust window allows field tuning the extend stroke down to 0mm. Mounting options include FA, LB, and TC brackets. The -S suffix includes a piston magnet for legacy CS1-B/DS1-B switches. For stroke lengths >=300mm, verify side-load constraints to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ32X50-50S
- ✓ 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 SIJ32X50-50S FAQ
Yes, the SIJ32X50-50S is discontinued. The direct replacement is the SAIJ32X50-50S. It shares the identical ISO 15552 interface, 32mm bore, 50mm stroke, 50mm adjust window, G1/8 port, and mounting options, but adds an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw allows trimming the extend stroke by up to 50mm on-site. The stop sets end position only; it is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ32X50-50S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ32X50-50S replacement — usually within 7-8 hours.