This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAIJ100X700-20S, 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 SIJ100X700-20S
The AirTAC SIJ100 Double Rod Adjustable Cylinder SIJ100X700-20S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 700mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAIJ100X700-20S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke700 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAIJ100X700-20S
- 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 SIJ100X700-20S
The AirTAC SIJ100X700-20S is a discontinued double-acting, double-rod ISO 15552 adjustable-stroke cylinder with a 100 mm bore, 700 mm nominal stroke, and a built-in piston magnet. An external stop screw lets you trim the extend stroke by up to 20 mm on-site, yielding a usable 680-700 mm extension window. It features a Ø25 mm piston rod, M20x1.5 rod-end thread, 36 mm adjustable air cushions, and a fixed G1/2 port.
Because the SIJ line is end-of-life, the direct replacement is the SAIJ100X700-20S, preserving the same ISO 15552 mounting interface, bore, stroke, adjustability, and force. The SAIJ upgrade introduces a two Y-shaped one-way piston seal for lower start-up pressure and longer life. Note that the stop screw sets end position only; it is not a lock. For load holding on air loss, use an external rod lock or the SAIL/BSAI variants.
Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X700-20S Technical Specifications
| Model | Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X700-20S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAIJ100X700-20S |
| Bore size | Ø100 mm |
| Stroke | 700 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 SAIJ100X700-20S 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 SAIJ100X700-20S 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 SIJ100X700-20S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×700 | 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 SIJ100X700-20S Is Used
Press Tonnage Calibration
Allows exact 680-700 mm extend endpoints to be set on-site for a 100 mm bore press, ensuring precise material contact without re-engineering fixed stop blocks.
Divertor Arm Positioning
Fine-tunes the extend stroke by up to 20 mm to accommodate varying package sizes on a sorting line, preventing crushing while maintaining ISO 15552 mounting compatibility.
Pallet Stopper Adjustment
Provides a field-adjustable end position for pallet engagement, allowing operators to dial in the 20 mm window to handle slight pallet depth variations safely.
Replacing the Airtac SIJ100 Double Rod Adjustable Cylinder SIJ100X700-20S with the SAIJ100X700-20S
To replace the discontinued SIJ100X700-20S, order the direct replacement SAIJ100X700-20S, which retains the G1/2 port, M20x1.5 rod thread, 36 mm cushions, and FA/LB/TC mountings. The -S suffix confirms the piston magnet is present for legacy CS1-B/DS1-B switches (the SAIJ uses current AirTAC switches). The 20 mm adjust window allows field-tuning the extend stroke from 680 to 700 mm without external stops. Because the 700 mm stroke exceeds 300 mm, ensure external guides to prevent rod bending and manage side loads. Operating speed is 30-800 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAIJ100X700-20S
- ✓ 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 SIJ100X700-20S FAQ
Yes, the SIJ100X700-20S is discontinued. The direct replacement is the SAIJ100X700-20S. It shares the same ISO 15552 interface, 100 mm bore, 700 mm stroke, 20 mm adjust window, G1/2 port, and force ratings. The SAIJ family also features an upgraded two Y-shaped one-way piston seal for longer life.
The external stop screw provides a 20 mm adjustment window, allowing the extend stroke to be shortened from 700 mm down to 680 mm on-site. The stop sets end position only and is not a load lock.
Related AirTAC SAI Cylinders
Request a Quote for the SAIJ100X700-20S
Send us the quantity and destination. We confirm price, stock and lead time on the SAIJ100X700-20S replacement — usually within 7-8 hours.