This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X175-20S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X175-20S in place of this model. 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 175mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X175-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke175 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X175-20S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S
The AirTAC SIJ80X175-20S is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, now discontinued. The direct drop-in replacement is the SAIJ80X175-20S, retaining the exact 80mm bore, 175mm nominal stroke, G3/8 port, and mounting interface. An external stop screw lets you trim the extend stroke by up to 20mm on-site, giving a usable extend range of 155-175mm. This stop sets the end position and is not a load lock.
At 0.5MPa it delivers 2513N push and 2268N pull, peaking at 4523N push at 0.9MPa. The computed safe working load is roughly 1508N (60% of the 0.5MPa push), translating to a 128kg vertical lift with a 2:1 margin. The SAIJ upgrade utilizes a two Y-shaped one-way piston seal for lower start-up pressure and longer life. A plain cylinder drifts on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X175-20S |
| Bore size | Ø80 mm |
| Stroke | 175 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ80X175-20S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAIJ80X175-20S produces the same force from the same bore — a true drop-in on output. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×175 | 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 SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S Is Used
Press Fit Tuning
Allows on-site extend stroke trimming up to 20mm to set precise lower dead center for light-duty press fits without remachining stop blocks.
Transfer Diverter
Adjusts the extend endpoint on the fly to accommodate varying product widths on a packaging line diverter, ensuring positive contact without overtravel.
Pallet Stop Gate
Fine-tunes the physical stop position for different pallet depths entering a lift station, providing a 155-175mm adjustable hard stop.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S with the SAIJ80X175-20S
To replace the discontinued SIJ80X175-20S, order the drop-in SAIJ80X175-20S, reusing your FA, LB, or TC mounts. To size both ways: the 63mm bore gives 1559N push at 0.5MPa, while the 100mm bore gives 3927N. The 20mm adjust window is ideal if your extend end-position needs minor on-site tuning between 155-175mm. The -S suffix means a piston magnet is present for legacy CS1-B/DS1-B switches (SAIJ uses current switches). For stroke lengths >=300mm, verify side-load guidance to prevent rod binding. Remember the stop screw only sets position; it does not lock the load without live air.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X175-20S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20S FAQ
Yes, the SIJ80X175-20S is discontinued. The exact drop-in replacement is the SAIJ80X175-20S. It shares the identical ISO 15552 interface, 80mm bore, 175mm stroke, 20mm adjust window, and G3/8 port. The SAIJ upgrade features an improved two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The 80mm bore provides 2513N push and 2268N pull at 0.5MPa, 3518N at 0.7MPa, and 4523N at 0.9MPa. The external stop screw allows you to trim the extend stroke by up to 20mm on-site, giving a usable extend range of 155-175mm. The stop sets end position only; it is not a load lock, and loads will drift without live air.
Related AirTAC SAI Cylinders
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