This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X160-20STC — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X160-20STC 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 SIJ80X160-20STC
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X160-20STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 160mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X160-20STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke160 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X160-20STC
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X160-20STC
The AirTAC SIJ80X160-20STC is a discontinued double-acting, single-rod ISO 15552 adjustable-stroke cylinder. It uses a 25 mm piston rod with a G3/8 port and an external stop screw to trim the extend stroke by up to 20 mm on-site, yielding a usable 140-160 mm stroke. The nominal 160 mm stroke is the maximum, and the stop sets end position but is not a load lock. It delivers 2513 N push and 2268 N pull at 0.5 MPa.
The exact drop-in replacement is the SAIJ80X160-20STC, matching the bore, stroke, force, port, and TC mounting. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. For sizing, the safe working load is roughly 1508 N (60% of the 0.5 MPa push), allowing a vertical lift of about 128 kg with a 2:1 margin. A plain cylinder drifts on air loss; use an external rod lock or SAIL/BSAI variant for held loads.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X160-20STC Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X160-20STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X160-20STC |
| Bore size | Ø80 mm |
| Stroke | 160 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 SAIJ80X160-20STC 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 SAIJ80X160-20STC 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 SIJ80X160-20STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×160 | 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 SIJ80X160-20STC Is Used
End-Position Trimming on Machining Fixtures
Fine-tune the extend stroke by up to 20 mm on-site to dial in exact clamping contact points without machining new hard stops.
Adjustable Transfer Diverter
Set the precise extension length required to route varying product sizes on a packaging line, using the external stop screw to define the end position.
Variable Height Stops
Field-adjust the cylinder extension to act as a physical dead-stop for pallets or totes of different heights arriving at a workstation.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X160-20STC with the SAIJ80X160-20STC
Replace the discontinued SIJ80X160-20STC directly with the SAIJ80X160-20STC, reusing the existing ISO 15552 TC mount interface. To size both ways, the neighboring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. This 80 mm bore provides 2513 N push at 0.5 MPa and 3518 N at 0.7 MPa. The 20 mm adjust window lets you fine-tune the extend end position on-site. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. For strokes of 300 mm or more, verify side-load limits to prevent guide wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X160-20STC
- ✓ 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 SIJ80X160-20STC FAQ
Yes, the SIJ80X160-20STC is discontinued. The exact drop-in replacement is the SAIJ80X160-20STC, which matches the ISO 15552 interface, 80 mm bore, 160 mm stroke, 20 mm adjust window, G3/8 port, and TC mounting. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life.
The double-acting single-rod design 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 provides a 20 mm adjust window, shortening the extend stroke from the 160 mm maximum down to 140 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
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