This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X100-50STC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X100-50STC 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 SIJ80X100-50STC
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50STC 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 SAIJ80X100-50STC, 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 → SAIJ80X100-50STC
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50STC
The AirTAC SIJ80X100-50STC 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 50 mm on-site, giving a usable 50-100 mm window from the 100 mm nominal maximum. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa via a G3/8 port. This stop sets the end position but is not a load lock.
The exact drop-in replacement is the SAIJ80X100-50STC, retaining the ISO 15552 mounting interface, TC accessory, and force. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure. Computed buyer insight: safe working load is ~1508 N (60% of the 0.5 MPa push), yielding a ~128 kg vertical lift with a 2:1 margin.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50STC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X100-50STC |
| 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 SAIJ80X100-50STC 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 SAIJ80X100-50STC 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 SIJ80X100-50STC
| 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 SIJ80X100-50STC Is Used
Press Fit Tuning
Adjustable end-position allows operators to trim the 100 mm extend stroke by up to 50 mm to set precise pressing depth for bearings without machining hard stops.
Variable Length Diverter
On-site stroke tuning lets a single diverter mechanism accommodate varying package sizes by shortening the extend stroke within the 50 mm window.
Carton Flap Folding
Field stroke adjustment provides the flexibility to fold different carton heights accurately using the external stop screw to set the final extend position.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X100-50STC with the SAIJ80X100-50STC
Replace the discontinued SIJ80X100-50STC directly with the SAIJ80X100-50STC. To size both ways, the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. Choose the 50 mm adjust window if you need to tune the extend stroke on-site; the stop sets end position but is not a lock. The TC mounting interface reuses your ISO 15552 fixtures. The -S suffix provides a piston magnet for CS1-B/DS1-B switches. For strokes >=300 mm, verify side-load guidance. For load holding on air loss, use SAIL/BSAI or an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X100-50STC
- ✓ 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 SIJ80X100-50STC FAQ
Yes, the SIJ80X100-50STC is discontinued. The exact drop-in replacement is the SAIJ80X100-50STC, which shares the same ISO 15552 interface, 80 mm bore, 100 mm stroke, 50 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 at 0.9 MPa. The theoretical max is 513 kgf at 1.0 MPa. The external stop screw provides a 50 mm adjust window, allowing the extend stroke to be shortened from the 100 mm nominal maximum down to 50 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X100-50STC
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