This model is discontinued
AirTAC has phased out the MAL series. The drop-in replacement is SAIJ80X70-30S — same bore, stroke, output force, port and mounting, so it fits the same application. Simply order the SAIJ80X70-30S 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 SIJ80X70-30S
The AirTAC Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X70-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 70mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the drop-in replacement is the SAIJ80X70-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke70 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ80X70-30S
About the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X70-30S
The AirTAC SIJ80X70-30S 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 30 mm on-site, yielding a usable 40-70 mm stroke from the 70 mm nominal maximum. The 80 mm bore delivers 2513 N push and 2268 N pull at 0.5 MPa, scaling to 4523 N at 0.9 MPa. It features a Ø25 mm rod, M20x1.5 thread, 36 mm adjustable cushions, and a fixed G3/8 port. The exact drop-in replacement is the SAIJ80X70-30S, matching the interface, force, and mounting.
Upgrading to the SAIJ family retains the ISO 15552 mounting footprint but incorporates an upgraded piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. From a computed buyer insight, the 0.5 MPa push yields a safe working load of roughly 1508 N (60% derating), translating to a 128 kg vertical lift with a 2:1 safety margin. The -S suffix indicates a built-in piston magnet for legacy CS1-B/DS1-B switches. Remember the stop screw sets the end position but is not a load lock; for held loads use SAIL/BSAI or an external rod lock.
Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X70-30S Technical Specifications
| Model | Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X70-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ80X70-30S |
| Bore size | Ø80 mm |
| Stroke | 70 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 SAIJ80X70-30S 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 SAIJ80X70-30S 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 SIJ80X70-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×70 | 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 SIJ80X70-30S Is Used
Press Fit Tuning
Light-duty press operations requiring precise field adjustment of the extend stroke to accommodate varying pin or bearing insertion depths without changing the cylinder.
Variable Stroke Diverters
Sorting mechanisms on packaging lines where the extend stroke must be trimmed on-site by up to 30 mm to handle different product sizes accurately.
Adjustable End Stops
Palletizing or end-stop applications needing a 40-70 mm extend window to buffer varying pallet dimensions before triggering a downstream sensor.
Replacing the Airtac SIJ80 Dual Axis Adjustable Cylinder SIJ80X70-30S with the SAIJ80X70-30S
To replace the discontinued SIJ80X70-30S, order the exact drop-in SAIJ80X70-30S, which preserves the 70 mm nominal stroke, 30 mm adjust window, G3/8 port, and ISO 15552 mounting. When sizing both ways, the neighboring 63 mm bore provides 2182 N push at 0.7 MPa, while the 100 mm bore offers 5497 N push at 0.7 MPa. Choose the 30 mm adjust window if your application needs field tuning between 40 and 70 mm. Mounting options include Basic, FA, LB, and TC. The -S suffix ensures piston magnet compatibility for legacy CS1-B/DS1-B switches (the SAIJ replacement uses current AirTAC switches). Because the 70 mm stroke is below 300 mm, side-load rod deflection is minimal. The external stop is not a lock; for load holding on air loss, specify an external rod lock or pilot-operated check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ80X70-30S
- ✓ 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 SIJ80X70-30S FAQ
Yes, the SIJ80X70-30S is discontinued. The exact drop-in replacement is the SAIJ80X70-30S. It shares the same ISO 15552 interface, 80 mm bore, 70 mm nominal stroke, 30 mm adjust window, G3/8 port, and mounting options, but adds an upgraded piston seal.
The 80 mm bore 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 provides a 30 mm adjustment window, allowing you to trim the extend stroke from the 70 mm maximum down to 40 mm. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
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