This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ125X100-100TC, 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 SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC
The AirTAC SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 100mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ125X100-100TC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke100 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAIJ125X100-100TC
- 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 SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC
The AirTAC SIJ125X100-100TC is a discontinued double-acting double-rod ISO 15552 adjustable-stroke cylinder. An external stop screw lets you trim the extend stroke by up to 100 mm on-site, setting the end position precisely. The direct replacement is the SAIJ125X100-100TC, sharing the same interface, force, and TC mounting.
The SAIJ upgrade introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. Note this SKU lacks a -S magnet, so it cannot accept a magnetic switch. The stop screw sets end position but is not a load lock; use SAIL or BSAI for held loads.
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC Technical Specifications
| Model | Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ125X100-100TC |
| Bore size | Ø125 mm |
| Stroke | 100 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAIJ125X100-100TC carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
The SAIJ125X100-100TC produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×100 | 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 SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC Is Used
Press Fit Tuning
Allows operators to fine-tune the extend stroke on-site during assembly press operations, ensuring precise insertion depths without changing the entire cylinder setup.
Variable Length Diverter
Provides adjustable reach for package diverters handling varying product sizes, allowing the stop screw to set the exact extension needed for each format.
Adjustable End Stops
Ideal for pallet handling systems where the end position requires occasional field adjustment to accommodate different pallet dimensions safely.
Replacing the Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC with the SAIJ125X100-100TC
To replace the discontinued SIJ125X100-100TC, order the exact direct replacement SAIJ125X100-100TC, which preserves the 100 mm nominal stroke, 100 mm adjust window, G1/2 port, and TC mounting interface. Choose the 100 mm adjust window when you need to trim the extend stroke by up to 100 mm on-site. The TC mount allows ISO 15552 mounting reuse. Because this SKU has no -S suffix, it cannot support legacy CS1-B or DS1-B sensors. For strokes of 300 mm or longer, verify side-load limits to prevent excessive rod wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ125X100-100TC
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SIJ125 Double Rod Adjustable Cylinder SIJ125X100-100TC FAQ
Yes, the SIJ125X100-100TC is discontinued. The direct replacement is the SAIJ125X100-100TC. It shares the same ISO 15552 interface, 125 mm bore, 100 mm stroke, 100 mm adjust window, G1/2 port, and TC mounting. The SAIJ family also adds an upgraded piston seal and SAIL/BSAI lock variants.
The theoretical max is 1251 kgf at 1.0 MPa. The external stop screw allows you to trim the extend stroke by up to 100 mm on-site. The stop sets end position but is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ125X100-100TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ125X100-100TC replacement — usually within 7-8 hours.