This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX10, 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 SI100BX10
The AirTAC Airtac SI100 Standard Cylinder SI100BX10 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 10mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX10, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke10 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX10
- 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 SI100BX10
The AirTAC SI100BX10 is a discontinued double-acting ISO 15552 profile cylinder featuring a 100mm bore, 10mm stroke, and a SUS304 stainless steel piston rod. Delivering a push force of 3927 N at 0.5 MPa, it is replaced by the SAI100BX10. This SAI direct matches the G1/2 port, M20x1.5 thread, and mounting interface, dropping straight into existing fixtures.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet, so it cannot accept a CS1-B/DS1-B sensor. The cushion only decelerates; use a SAIL lock or pilot check valve to hold loads.
Airtac SI100 Standard Cylinder SI100BX10 Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX10 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX10 |
| Bore size | Ø100 mm |
| Stroke | 10 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 SAI100BX10 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 SAI100BX10 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 SI100BX10
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×10 | 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 SI100BX10 Is Used
Short-Stroke Clamping
Ideal for high-force 3927 N clamping tasks in machining fixtures where a 10mm stroke securely holds heavy metal components.
Stainless Rod Ejection
The SUS304 rod suits ejection mechanisms in washdown environments, pushing parts out of molds with 5497 N at 0.7 MPa.
Heavy Pressing Operations
Provides reliable downward pressing force for assembly stations, utilizing the 100mm bore to deliver consistent impact without long travel.
Replacing the Airtac SI100 Standard Cylinder SI100BX10 with the SAI100BX10
To replace the SI100BX10, order the SAI100BX10. Verify the ISO 15552 mounting interface, 100mm bore, 10mm stroke, G1/2 port, and SUS304 rod. For sizing, the 80mm bore yields 2513 N push at 0.5 MPa, while the 125mm bore yields 6136 N. This plain cylinder drifts without air and cannot hold a load; use an external rod lock or pilot check valve. The SAI family adds SAIL, SAIF, and BSAI variants for lock and valve needs.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX10
- ✓ 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 SI100BX10 FAQ
Yes, the SI100BX10 is discontinued. The direct replacement is the SAI100BX10. It is dimensionally interchangeable per ISO 15552, retaining the same 100mm bore, 10mm stroke, G1/2 port, and mounting interface.
This double-acting cylinder has a G1/2 port. It delivers a push force of 3927 N and pull of 3681 N at 0.5 MPa, 5497 N at 0.7 MPa, 7068 N at 0.9 MPa, and a theoretical max of 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX10
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX10 replacement — usually within 7-8 hours.