This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X100-40STC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X100-40STC 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 SIJ80X100-40STC
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-40STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X100-40STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X100-40STC
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-40STC
The AirTAC SIJ80X100-40STC is a discontinued double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 100 mm nominal stroke and a G3/8 port. An external stop screw lets you trim the extend stroke by up to 40 mm on-site, yielding a usable 60-100 mm extension. The stop sets the end position; it is not a load lock. At 0.5 MPa it delivers 2513 N push and 2268 N pull, rising to 4523 N at 0.9 MPa. The exact drop-in replacement is the SAIJ80X100-40STC, sharing the same interface, force, and TC mounting.
The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer 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. This cylinder includes a -S piston magnet for legacy CS1-B/DS1-B switches and 36 mm adjustable cushions. A plain cylinder drifts on air loss; for held loads use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-40STC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-40STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X100-40STC |
| Bore size | Ø80 mm |
| Stroke | 100 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 SAIJ80X100-40STC 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 SAIJ80X100-40STC 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 SIJ80X100-40STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×100 | 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 SIJ80X100-40STC Is Used
Variable Push Assembly
Tuning the extend stroke on-site for pressing parts of varying heights where a fixed 100 mm stroke would over-travel or damage the workpiece.
Adjustable Diverter Gate
Setting precise extension distances to divert different package widths on a conveyor line without swapping the entire cylinder.
Variable Height Stopper
Acting as an end-stop in a pallet handling system where the required protrusion distance must be field-adjusted to accommodate varying load profiles.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-40STC with the SAIJ80X100-40STC
To replace the discontinued SIJ80X100-40STC, use the SAIJ80X100-40STC directly—the mapping keeps the 80 mm bore, 100 mm stroke, 40 mm adjust window, G3/8 port, M20x1.5 rod thread, and TC mount. When sizing both ways, the neighbouring 63 mm bore yields 2182 N push at 0.7 MPa, while the 100 mm bore yields 5497 N at 0.7 MPa. Choose the 40 mm adjust window if your extend stroke needs on-site tuning between 60 and 100 mm. The TC mount provides a trunnion interface for pivoting. The -S suffix ensures a piston magnet for switch sensing. For strokes of 300 mm or longer, verify side-load limits to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X100-40STC
- ✓ 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 SIJ80X100-40STC FAQ
Yes, the SIJ80X100-40STC is discontinued. The exact drop-in replacement is the SAIJ80X100-40STC, which matches the ISO 15552 interface, 80 mm bore, 100 mm stroke, 40 mm adjust window, G3/8 port, and TC mounting.
It 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 theoretical max of 513 kgf at 1.0 MPa. The external stop screw window is 40 mm, allowing the 100 mm extend stroke to be shortened to a minimum of 60 mm on-site.
Related AirTAC SAI Cylinders
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