This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X125-30STC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X125-30STC 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 SIJ80X125-30STC
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-30STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 125mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X125-30STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke125 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X125-30STC
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-30STC
The AirTAC SIJ80X125-30STC is a double-acting single-rod ISO 15552 adjustable-stroke cylinder, discontinued and replaced drop-in by the SAIJ80X125-30STC. Its external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 95-125 mm extend out of the 125 mm nominal maximum. The 80 mm bore features a 25 mm rod, M20x1.5 rod thread, G3/8 port, and 36 mm adjustable cushions, delivering 2513 N push and 2268 N pull at 0.5 MPa. The stop sets the end position but is not a lock; load holding requires live air or an external rod lock.
The SAIJ replacement retains the ISO 15552 mounting interface and adds an upgraded two-piece Y-shaped 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), translating to a 128 kg vertical lift with a 2:1 margin. This TC-mounted unit includes a -S piston magnet for legacy CS1-B/DS1-B switches. The SAI family also introduces SAIL and BSAI lock variants absent in the original SI line.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-30STC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-30STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X125-30STC |
| Bore size | Ø80 mm |
| Stroke | 125 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 SAIJ80X125-30STC 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 SAIJ80X125-30STC 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 SIJ80X125-30STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×125 | 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 SIJ80X125-30STC Is Used
Variable Pitch Indexing
Dialing the extend stop inward by up to 30 mm allows a single assembly station to accommodate multiple product lengths without swapping cylinders.
Adjustable Transfer Pusher
Trimming the extend stroke on-site lets operators fine-tune where cartons halt on the belt, ensuring precise alignment before the next process.
Variable Depth Palletizing
Field-tuning the extend end position provides flexibility to stack varying box heights or pallet depths while maintaining a rigid external stop.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X125-30STC with the SAIJ80X125-30STC
To replace the discontinued SIJ80X125-30STC, use the SAIJ80X125-30STC drop-in, matching the 80 mm bore, 125 mm stroke, 30 mm adjust window, G3/8 port, and TC mounting. 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 push. Choose the 30 mm adjust window if your field stroke tuning requires trimming the extend by up to 30 mm (95-125 mm usable). The TC mount provides a trunnion interface for pivot applications. The -S magnet enables position sensing. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X125-30STC
- ✓ 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 SIJ80X125-30STC FAQ
Yes, the SIJ80X125-30STC is discontinued. The exact drop-in replacement is the SAIJ80X125-30STC, offering the same ISO 15552 interface, 80 mm bore, 125 mm stroke, 30 mm adjust window, G3/8 port, and TC mounting.
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, with a theoretical max of 513 kgf at 1.0 MPa. The external stop screw offers a 30 mm adjust window, allowing the extend stroke to be shortened from the 125 mm nominal maximum down to 95 mm on-site.
Related AirTAC SAI Cylinders
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