This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X300-30 — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X300-30 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 SIJ80X300-30
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 300mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X300-30, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke300 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X300-30
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30
The AirTAC SIJ80X300-30 is a double-acting single-rod ISO 15552 adjustable-stroke cylinder with a 300 mm nominal stroke and a G3/8 port. An external stop screw lets you trim the extend stroke by up to 30 mm on-site, yielding a usable 270-300 mm window. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, with an adjustable 36 mm air cushion at each end. This SIJ model is discontinued; the exact drop-in replacement is the SAIJ80X300-30, matching the bore, stroke, force, port, and mounting.
The SAIJ successor incorporates an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. For sizing, the safe working load is roughly 1508 N (60% of the 0.5 MPa push force), translating to a 128 kg vertical lift with a 2:1 margin. Note this SKU lacks a magnet (-S) and cannot accept a sensor. The stop screw sets end position but is not a load lock; for held loads use an external rod lock or SAIL/BSAI variant.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30 Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X300-30 |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80X300-30 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 SAIJ80X300-30 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 SIJ80X300-30
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SIJ80X300-30 Is Used
Variable Pitch Indexing
Tuning the extend stroke by up to 30 mm on-site allows a 80 mm bore actuator to adapt part ejection distances between product changeovers without swapping cylinders.
Adjustable Diverter Gate
A 270-300 mm extend window lets operators fine-tune the gate reach on the fly to accommodate varying package widths on a packaging line.
Custom Stroke Pusher
Using the external stop screw to set a precise 285 mm end position prevents over-travel when pushing heavy pallets into a test fixture.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X300-30 with the SAIJ80X300-30
To replace the discontinued SIJ80X300-30, order the SAIJ80X300-30 drop-in, reusing your existing ISO 15552 FA, LB, or TC mounts. The 30 mm adjust window lets you tune the extend stroke down to 270 mm on-site. When sizing both ways: the neighbouring 63 mm bore yields 1559 N push at 0.5 MPa, while the 100 mm bore yields 3927 N. This non-magnetic SKU cannot take a switch; add -S for legacy CS1-B/DS1-B sensing. Because the 300 mm stroke risks rod bending, ensure external guides handle side loads. The stop screw sets position only; it is not a lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X300-30
- ✓ 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 SIJ80X300-30 FAQ
Yes, the SIJ80X300-30 is discontinued. The exact drop-in replacement is the SAIJ80X300-30, retaining the same ISO 15552 interface, 80 mm bore, 300 mm stroke, 30 mm adjust window, G3/8 port, and mounting options.
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 (max 513 kgf at 1.0 MPa). The external stop screw provides a 30 mm adjust window, shortening the extend stroke from 300 mm down to 270 mm. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ80X300-30
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