This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ80X200-20S, with the same bore, stroke, output force, port and mounting, so it fits the same application. 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 SIJ80X200-20S
The AirTAC SIJ80 Dual Axis Adjustable Cylinder SIJ80X200-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ80X200-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X200-20S
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X200-20S
The AirTAC SIJ80X200-20S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 200 mm nominal stroke and a built-in piston magnet (-S). An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 180-200 mm end position. The stop sets the end position but is not a load lock.
As SIJ is end-of-life, the direct replacement is the SAIJ80X200-20S, retaining the same ISO 15552 mounting interface, bore, force, and adjust window. The SAIJ upgrade uses a two Y-shaped one-way piston seal for low start-up pressure and long life. Note that a plain cylinder drifts on air loss; for held loads use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X200-20S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X200-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X200-20S |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAIJ80X200-20S 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 SAIJ80X200-20S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X200-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SIJ80X200-20S Is Used
Press Fit Tuning
Final insertion depth of bearings requires field stroke tuning; trim the extend stroke by up to 20 mm on-site to set exact 180-200 mm press positions without changing mounts.
Pallet Stop Positioning
End-of-line pallet stops require precise location tuning for different pallet widths; trim the extend stroke on-site to set the stop point, noting the stop is not a load lock.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X200-20S with the SAIJ80X200-20S
To replace the discontinued SIJ80X200-20S, order the direct replacement SAIJ80X200-20S, keeping the 20 mm adjust window (usable extend 180-200 mm) and -S magnet for legacy CS1-B/DS1-B switches. Reuse existing FA, LB, or TC ISO 15552 mounts. The external stop screw sets the end position but is not a lock; for load holding without live air, specify an external rod lock, pilot-operated check valve, or the SAIL/BSAI lock variant. For stroke lengths >=300 mm, verify side-load guidance to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X200-20S
- ✓ 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 SIJ80X200-20S FAQ
Yes, the SIJ80X200-20S is discontinued. The direct replacement is the SAIJ80X200-20S, which shares the same ISO 15552 interface, 80 mm bore, 200 mm stroke, 20 mm adjust window, G3/8 port, and mounting. The SAIJ upgrade features a two Y-shaped one-way piston seal for lower start-up pressure and longer life.
The external stop screw window is 20 mm, allowing a usable extend stroke of 180-200 mm. It uses a G3/8 port and 36 mm adjustable cushions. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X200-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ80X200-20S replacement — usually within 7-8 hours.