This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI100BX310SH, 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 SI100BX310SH
The AirTAC Airtac SI100 Standard Cylinder SI100BX310SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø100mm bore and 310mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI100BX310SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ100 mm
- Stroke310 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI100BX310SH
- 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 SI100BX310SH
The AirTAC SI100BX310SH is a discontinued double-acting ISO 15552 profile cylinder with a 100 mm bore and 310 mm stroke. It delivers 3927 N push force at 0.5 MPa via a G1/2 port. The direct replacement is the SAI100BX310SH, matching the interface, stroke, force, and port exactly.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. This specific SKU includes a SUS304 stainless rod, Viton H high-temp seals (0-150 C), and a magnet for CS1-B/DS1-B sensors.
Airtac SI100 Standard Cylinder SI100BX310SH Technical Specifications
| Model | Airtac SI100 Standard Cylinder SI100BX310SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI100BX310SH |
| Bore size | Ø100 mm |
| Stroke | 310 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 SAI100BX310SH 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 SAI100BX310SH 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 SI100BX310SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 100 | Bore size in mm. |
| ×310 | 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 SI100BX310SH Is Used
High-Force Pressing
Drives heavy stamping or forming stations requiring 3927 N of push force at 0.5 MPa with stable ISO 15552 mounting.
High-Temperature Handling
Operates reliably in heated zones up to 150 C thanks to the Viton H seals, transferring heavy workpieces between fixtures.
Replacing the Airtac SI100 Standard Cylinder SI100BX310SH with the SAI100BX310SH
To replace this SI with the SAI100BX310SH, verify the ISO 15552 mounting interface, 100 mm bore, 310 mm stroke, G1/2 port, and mounting accessory. The -S magnet enables current AirTAC switches, while the -B SUS304 rod and -H Viton seals are retained. If sizing up or down, compare neighbouring bores and the 5497 N push force at 0.7 MPa. Because the stroke is 310 mm, use an external guide to prevent rod bending from side loads. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI100BX310SH
- ✓ 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 SI100BX310SH FAQ
Yes, the SI100BX310SH is discontinued. The direct replacement is the SAI100BX310SH. It is dimensionally interchangeable per ISO 15552, retaining the same 100 mm bore, 310 mm stroke, output force, G1/2 port, and mounting interface, but adds an upgraded piston seal.
The G1/2 port feeds a 25 mm rod. Force outputs are 3927 N push and 3681 N pull at 0.5 MPa, 5497 N push at 0.7 MPa, and 7068 N push at 0.9 MPa. The theoretical maximum is 801 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI100BX310SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI100BX310SH replacement — usually within 7-8 hours.