This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X25-30S, 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 25mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X25-30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke25 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X25-30S
- 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S
The AirTAC SIJ100X25-30S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder with a 25mm nominal stroke and a built-in piston magnet. An external stop screw lets you trim the extend stroke by up to 30mm on-site. The stop sets the end position; it is not a load lock. This 100mm bore uses a G1/2 port, a 25mm rod, M20x1.5 thread, and 36mm adjustable air cushions. The direct replacement is the SAIJ100X25-30S, sharing the same interface, force, and mounting.
The SAIJ replacement upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. It also adds SAIL and BSAI lock variants the SI line lacked. For held loads, note that air cushions only decelerate; use an external rod lock.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X25-30S |
| Bore size | Ø100 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 SAIJ100X25-30S carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
The SAIJ100X25-30S produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×25 | 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 SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S Is Used
Short-Stroke Clamping
Dialing in exact clamping contact on cast parts by trimming the extend stroke on-site, avoiding over-travel on delicate workpieces.
Transfer Diverter Setup
Fine-tuning the actuator end position to match varying product sizes on a packaging line without machining new hard stops.
Press Pin Insertion
Setting a precise 0-25mm insertion depth for pins, where the external stop screw provides repeatable physical end-position control.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S with the SAIJ100X25-30S
To replace the discontinued SIJ100X25-30S, order the direct replacement SAIJ100X25-30S, keeping the 25mm stroke, 30mm adjust window, G1/2 port, and -S magnet for CS1-B/DS1-B switches. The 30mm adjust window is ideal when you need to dial in a short 0-25mm extend motion. Mounting interfaces include Basic, FA, LB, and TC. Since the 25mm stroke is under 300mm, side-load rod deflection is minimal. Remember the external stop is not a lock; for load-holding without live air, select the SAIL or BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X25-30S
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X25-30S FAQ
Yes, the SIJ100X25-30S is discontinued. The direct replacement is the SAIJ100X25-30S. It shares the same ISO 15552 interface, 100mm bore, 25mm stroke, 30mm adjust window, G1/2 port, and mounting options, but upgrades the piston seal to two Y-shaped one-way elements.
The external stop screw window is 30mm, allowing you to shorten the 25mm nominal extend stroke on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X25-30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X25-30S replacement — usually within 7-8 hours.