This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X275-100S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X275-100S 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 SIJ80X275-100S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 275mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X275-100S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke275 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X275-100S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100S
The AirTAC SIJ80X275-100S is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 275 mm nominal stroke and a -S piston magnet. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, yielding a usable 175-275 mm extension window. The 80 mm bore uses a G3/8 port, a Ø25 mm rod with an M20x1.5 thread, and 36 mm adjustable air cushions. The stop sets the end position; it is not a load lock, and the cylinder will drift on air loss.
The exact drop-in replacement is the SAIJ80X275-100S, matching the ISO 15552 mounting interface, bore, force, and adjust window. The SAIJ upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. At 0.5 MPa this bore delivers 2513 N push and 2268 N pull; the safe working load is roughly 1508 N (60% of the 0.5 MPa push), translating to a 128 kg vertical lift with a 2:1 margin. The -S suffix provides a magnet for legacy CS1-B/DS1-B switches.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X275-100S |
| Bore size | Ø80 mm |
| Stroke | 275 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 SAIJ80X275-100S 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 SAIJ80X275-100S 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 SIJ80X275-100S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×275 | 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 SIJ80X275-100S Is Used
Variable Press Stroke
Adjusting the extend stop on-site to dial in exact 175-275 mm contact positions for pressing bearings without re-machining hard stops.
Variable Length Diverter
Tuning the extend stroke by up to 100 mm to deflect different package sizes on a conveyor line precisely where needed.
Adjustable Forming Stop
Setting precise end positions for packaging flap folding or forming operations that require frequent format changes.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X275-100S with the SAIJ80X275-100S
To replace the discontinued SIJ80X275-100S, order the drop-in SAIJ80X275-100S, keeping the same 80 mm bore, 275 mm max stroke, 100 mm adjust window, G3/8 port, and -S magnet. For sizing both ways, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N push at 0.5 MPa. Choose the 100 mm adjust window if your end-position tuning requires the full 175-275 mm range. Mounting reuses standard ISO 15552 Basic, FA, LB, or TC attachments. For strokes of 300 mm or longer, verify guide tolerances to manage side loads. For load holding, use SAIL or BSAI lock variants or an external rod lock, as the stop screw is not a brake.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X275-100S
- ✓ 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 SIJ80X275-100S FAQ
Yes, the SIJ80X275-100S is discontinued. The exact drop-in replacement is the SAIJ80X275-100S. It matches the ISO 15552 interface, 80 mm bore, 275 mm stroke, 100 mm adjust window, and G3/8 port. 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, 4523 N push at 0.9 MPa, and a 513 kgf max at 1.0 MPa. The 100 mm external stop screw window allows trimming the extend stroke on-site from 275 mm down to 175 mm. The stop sets end position only and does not lock the load.
Related AirTAC SAI Cylinders
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