This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X50-10S, 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 SIJ100X50-10S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X50-10S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 50mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X50-10S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke50 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X50-10S
- 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 SIJ100X50-10S
The AirTAC SIJ100X50-10S is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder featuring a G1/2 port and a 25mm piston rod. An external stop screw lets you trim the extend stroke by up to 10mm on-site, giving a usable 40-50mm stroke out of the 50mm nominal maximum. As a direct, the SAIJ100X50-10S replaces this unit with the same ISO 15552 mounting interface, bore, force, and adjust window.
The SAIJ successor improves longevity via an upgraded two Y-shaped one-way piston seal for lower start-up pressure. Note the stop screw sets the end position but is not a load lock; cylinders drift on air loss. For held loads, use an external rod lock or SAIL/BSAI variant.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X50-10S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X50-10S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X50-10S |
| Bore size | Ø100 mm |
| Stroke | 50 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 SAIJ100X50-10S 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 SAIJ100X50-10S 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 SIJ100X50-10S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×50 | 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 SIJ100X50-10S Is Used
Press Fit Dialing
Fine-tune the 40-50mm extend stroke on-site by up to 10mm to set precise insertion depths for bearing press operations without swapping cylinders.
Variable Height Sealing
Adjust the end position to accommodate different carton heights on a packaging line, using the stop screw to set the exact 40-50mm travel limit.
Actuator End Stop Tuning
Dial in the exact extend endpoint for a clamping mechanism where a fixed 50mm stroke would over-travel, relying on the external screw for the final 10mm trim.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X50-10S with the SAIJ100X50-10S
To replace the discontinued SIJ100X50-10S, order the direct replacement SAIJ100X50-10S, retaining the existing FA, LB, or TC ISO 15552 mounts and the G1/2 port. The -S suffix denotes a piston magnet for legacy CS1-B/DS1-B switches; the SAIJ replacement uses current AirTAC switches. The 10mm adjust window allows precise end-position tuning without machining. For strokes >=300mm, verify side-load guidance to prevent rod binding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X50-10S
- ✓ 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 SIJ100X50-10S FAQ
Yes, the SIJ100X50-10S is discontinued. The direct replacement is the SAIJ100X50-10S. It shares the same ISO 15552 interface, 100mm bore, 50mm stroke, 10mm adjust window, G1/2 port, and mounting dimensions, but features an upgraded piston seal.
The external stop screw offers a 10mm adjust window, allowing you to shorten the 50mm nominal extend stroke down to 40mm on-site. The stop sets end position and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X50-10S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X50-10S replacement — usually within 7-8 hours.