This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X75-20 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X75-20 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 SIJ80X75-20
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-20 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 75mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X75-20, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke75 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X75-20
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-20
The AirTAC SIJ80X75-20 is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 75 mm maximum stroke. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 55-75 mm end position. The 80 mm bore uses a G3/8 port, a 25 mm rod, and 36 mm adjustable air cushions. Force output is 2513 N push and 2268 N pull at 0.5 MPa, reaching 4523 N at 0.9 MPa. This SKU has no -S magnet and cannot accept a magnetic switch.
The exact drop-in replacement is the SAIJ80X75-20, matching the interface, bore, force, and mounting. The SAIJ family uses an upgraded two-piece Y-shaped piston seal for low start-up pressure and long life. For sizing, a safe working load is roughly 1508 N (60% of the 0.5 MPa push), equating to a 128 kg vertical lift with a 2:1 margin. Remember the stop screw sets end position but is not a load lock; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-20 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-20 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X75-20 |
| Bore size | Ø80 mm |
| Stroke | 75 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 SAIJ80X75-20 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 SAIJ80X75-20 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 SIJ80X75-20
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×75 | 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 SIJ80X75-20 Is Used
Press Fit Tuning
Allows operators to dial in the exact 55-75 mm extend position for inserting fittings without changing the fixed cylinder body.
Variable Length Diverter
Adjusts the extend stop on-site to deflect varying package sizes on a line, providing precise routing without pneumatic stroke changes.
Adjustable End Stop
Sets a firm mechanical end position for pallets or trays, trimming the 75 mm nominal stroke by up to 20 mm to suit different pallet depths.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X75-20 with the SAIJ80X75-20
To replace the discontinued SIJ80X75-20, order the drop-in SAIJ80X75-20, which retains the G3/8 port and ISO 15552 mounting interfaces (Basic, FA, LB, TC). When sizing both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Choose the 20 mm adjust window if your mechanism needs field tuning between 55 and 75 mm. Because this SKU lacks the -S magnet, it cannot support legacy CS1-B/DS1-B sensors; add external physical stops if detection is required. For strokes of 300 mm or longer, carefully manage side-load moments to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X75-20
- ✓ 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 SIJ80X75-20 FAQ
Yes, the SIJ80X75-20 is discontinued. The exact drop-in replacement is the SAIJ80X75-20, which shares the same ISO 15552 interface, 80 mm bore, 75 mm stroke, 20 mm adjust window, and G3/8 port. The SAIJ family also features an upgraded piston seal for longer life.
The 80 mm bore provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N at 0.7 MPa, and 4523 N at 0.9 MPa. The external stop screw provides a 20 mm adjust window, allowing the extend stroke to be shortened from the 75 mm maximum down to 55 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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