This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100X200LB, 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 SI100 Standard Cylinder SI100X200LB
The AirTAC Airtac SI100 Standard Cylinder SI100X200LB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 200mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100X200LB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke200 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100X200LB
- 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 SI100 Standard Cylinder SI100X200LB
The AirTAC SI100X200LB is a discontinued double-acting ISO 15552 profile cylinder with an LB foot mount. Built for heavy tasks, it delivers 3927 N push and 3681 N pull at 0.5 MPa through a G1/2 port. The direct replacement is the SAI100X200LB, which matches the 100 mm bore, 200 mm stroke, force, and ISO 15552 mounting interface.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. For sensing, note this specific SKU lacks the -S magnet and cannot accept CS1-B/DS1-B switches. The SAI family also adds SAIL, SAIF, and BSAI variants.
Airtac SI100 Standard Cylinder SI100X200LB Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100X200LB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100X200LB |
| Bore size | Ø100 mm |
| Stroke | 200 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 SAI100X200LB 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 SAI100X200LB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI100 Standard Cylinder SI100X200LB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×200 | 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 SI100 Standard Cylinder SI100X200LB Is Used
Heavy Press Clamping
Secures large metal castings in machining fixtures, utilizing the 3927 N push force at 0.5 MPa to hold parts rigidly against cutting loads.
Pallet Diverting
Pushes loaded pallets sideways at transfer stations, with the LB foot mount absorbing the high side-thrust during heavy product redirection.
Roller Lane Gating
Actuates heavy stop gates in gravity roller conveyors, reliably holding back accumulated cartons until the release sequence is triggered.
Replacing the Airtac SI100 Standard Cylinder SI100X200LB with the SAI100X200LB
To replace the SI100X200LB, order the SAI100X200LB. Confirm the ISO 15552 LB foot mount, 200 mm stroke, G1/2 port, and M20x1.5 rod thread. This SKU has no magnet (-S), so it cannot fit CS1-B/DS1-B sensors; order a magnet-equipped SAI if position detection is needed. For sizing, a 100 mm bore yields 3927 N push at 0.5 MPa (801 kgf max at 1.0 MPa); step down to an 80 mm bore for 2513 N, or up to 125 mm for 6136 N. A plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or the SAIL/BSAI lock variant. Speed is 30-800 mm/s.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100X200LB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI100 Standard Cylinder SI100X200LB FAQ
Yes, the SI100X200LB is discontinued. The direct replacement is the SAI100X200LB. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 100 mm bore, 200 mm stroke, G1/2 port, and LB foot mount. The SAI simply upgrades the piston seal for lower start-up pressure.
This double-acting cylinder uses a G1/2 air port. The thrust ratings are: 3927 N push and 3681 N pull at 0.5 MPa; 5497 N push at 0.7 MPa; 7068 N push at 0.9 MPa; and a theoretical maximum force of 801 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100X200LB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100X200LB replacement — usually within 7-8 hours.