This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X175-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X175-20 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 SIJ80X175-20
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20 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 SAIJ80X175-20, 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 → SAIJ80X175-20
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20
The AirTAC SIJ80X175-20 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 20 mm on-site, giving a usable 155-175 mm window (175 mm nominal maximum). The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, scaling to 4523 N push at 0.9 MPa. It features a 25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, and a fixed G3/8 port.
The exact drop-in replacement is the SAIJ80X175-20, preserving the ISO 15552 mounting interface, bore, stroke, and force. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Computed buyer insight: safe working load is roughly 1508 N (60% of the 0.5 MPa push), yielding a 128 kg vertical lift with a 2:1 margin. Note this SKU lacks a magnet (-S) so it cannot take a switch, and the stop screw sets end position—it is not a load lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X175-20 |
| 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 SAIJ80X175-20 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 SAIJ80X175-20 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 SIJ80X175-20
| 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 SIJ80X175-20 Is Used
Press Fit Calibration
Trimming the 175 mm extend stroke by up to 20 mm on-site allows precise positioning for pressing bearings without machining hard stops.
Variable Length Diverter
Adjusting the extend end position dynamically accommodates different package sizes on a sorting line within the 155-175 mm window.
Pallet Stop Tuning
Fine-tuning the stroke limit on-site ensures pallets stop perfectly aligned for wrapping, compensating for mechanical tolerance stack-up.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X175-20 with the SAIJ80X175-20
To replace the SIJ80X175-20, order the drop-in SAIJ80X175-20; the ISO 15552 interface means you reuse existing FA, LB, or TC mounts without machining. Size both ways: the 63 mm neighbor gives 1559 N push at 0.5 MPa, while the 100 mm bore gives 3927 N. The 20 mm adjust window is ideal for final position tuning, but never use it to hold a load—on air loss the piston drifts, and the cushion only decelerates near end-of-stroke. For held loads use an external rod lock or the SAIL/BSAI variant. Because this SKU lacks a magnet, it cannot accept legacy CS1-B/DS1-B sensors. For stroke lengths of 300 mm or more, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X175-20
- ✓ 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 SIJ80X175-20 FAQ
Yes, the SIJ80X175-20 is discontinued. The exact drop-in replacement is the SAIJ80X175-20, which matches the ISO 15552 interface, G3/8 port, 175 mm stroke, and 20 mm adjust window. The SAIJ family also adds an upgraded two Y-shaped one-way piston seal for longer life.
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 push at 0.9 MPa (513 kgf max at 1.0 MPa). The external stop screw provides a 20 mm adjust window, shortening the extend stroke from 175 mm down to 155 mm. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X175-20
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