This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X175-50S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X175-50S 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 SIJ80X175-50S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-50S 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 SAIJ80X175-50S, 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 → SAIJ80X175-50S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-50S
The AirTAC SIJ80X175-50S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 50 mm on-site, yielding a usable 125-175 mm range from the 175 mm nominal maximum. The 80 mm bore uses a G3/8 port, M20x1.5 rod thread, and 36 mm adjustable cushions, delivering 2513 N push and 2268 N pull at 0.5 MPa. The exact drop-in replacement is the SAIJ80X175-50S, retaining the same interface, force, and mounting.
The SAIJ successor incorporates an upgraded two-piece Y-shaped piston seal for lower start-up pressure and longer life. For sizing, a computed buyer insight from the 0.5 MPa data suggests a safe working load around 1508 N (60% of push) and a vertical lift capacity near 128 kg with a 2:1 margin. The stop screw sets the end position but is not a load lock; a plain cylinder drifts on air loss, so use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-50S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-50S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X175-50S |
| 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 SAIJ80X175-50S 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 SAIJ80X175-50S 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 SIJ80X175-50S
| 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 SIJ80X175-50S Is Used
Variable Pitch Indexing
Adjusts the extend stroke on-site to alter part pitch without swapping the entire actuator.
Variable Transfer Stops
Trims the extend position by up to 50 mm to accommodate different package lengths on a single line.
Adjustable Pusher Arms
Sets precise end positions for sorting lanes where the required reach changes between product runs.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-50S with the SAIJ80X175-50S
To replace the discontinued SIJ80X175-50S, order the drop-in SAIJ80X175-50S, which preserves the G3/8 port, 175 mm stroke, 50 mm adjust window, and -S magnet for legacy CS1-B/DS1-B switches. When sizing both ways, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N; stepping up to 0.7 MPa on the 80 mm bore provides 3518 N. Choose the 50 mm adjust window if your fixture requires field tuning between 125 and 175 mm. Mounting attachments (FA, LB, TC) reuse the ISO 15552 interface. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X175-50S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-50S FAQ
Yes, the SIJ80X175-50S is discontinued. The exact drop-in replacement is the SAIJ80X175-50S. It shares the identical ISO 15552 interface, 80 mm bore, 175 mm stroke, 50 mm adjust window, and G3/8 port, but adds an upgraded piston seal.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and 4523 N at 0.9 MPa. The external stop screw allows you to trim the extend stroke by up to 50 mm on-site, giving a usable range of 125-175 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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