This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI32X850SLB, 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 SI32 Standard Air Cylinder SI32X850SLB
The AirTAC SI32 Standard Air Cylinder SI32X850SLB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø32mm bore and 850mm stroke, G1/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI32X850SLB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ32 mm
- Stroke850 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- StatusDiscontinued → SAI32X850SLB
- 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 SI32 Standard Air Cylinder SI32X850SLB
The AirTAC SI32X850SLB is a discontinued double-acting ISO 15552 profile cylinder with a 32mm bore and 850mm stroke. It delivers 402N push and 345N pull at 0.5MPa through a G1/8 port. AirTAC replaced this legacy unit with the SAI32X850SLB, a direct replacement retaining the exact ISO 15552 mounting interface, LB foot mount, stroke and output force.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. For applications needing load holding, the SAI family introduces SAIL and BSAI lock variants absent in the SI line. The built-in magnet supports CS1-B/DS1-B sensors, and seal options include Viton H for high-heat duties.
Airtac SI32 Standard Air Cylinder SI32X850SLB Technical Specifications
| Model | Airtac SI32 Standard Air Cylinder SI32X850SLB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI32X850SLB |
| Bore size | Ø32 mm |
| Stroke | 850 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI32X850SLB carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAI32X850SLB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI32 Standard Air Cylinder SI32X850SLB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×850 | 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 SI32 Standard Air Cylinder SI32X850SLB Is Used
Light Item Diversion
Pushes small packages on packaging lines using a safe 241N working load over the 850mm travel distance.
Fixture Positioning
Extends tooling fixtures 850mm, relying on the LB foot mount to stabilize the extruded aluminum barrel.
Replacing the Airtac SI32 Standard Air Cylinder SI32X850SLB with the SAI32X850SLB
To replace the SI32X850SLB, order the SAI32X850SLB. Verify your ISO 15552 interface, 32mm bore, 850mm stroke, G1/8 port, LB foot mounting, and the -S magnet for CS1-B/DS1-B switches. If you need more force, the neighboring 40mm bore yields 628N push at 0.5MPa; if less is acceptable, custom bores are unavailable so step down to a 25mm unit if possible. Because this is an 850mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss—the cushion only decelerates—so add an external rod lock, pilot check valve, or choose the SAIL/BSAI lock variant to hold loads securely.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI32X850SLB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI32 Standard Air Cylinder SI32X850SLB FAQ
Yes, the AirTAC SI32X850SLB is discontinued. The direct replacement is the SAI32X850SLB. It shares the identical ISO 15552 mounting interface, 32mm bore, 850mm stroke, output force, G1/8 port and LB foot mount, fitting directly into existing fixtures.
This 32mm bore double-acting cylinder uses a G1/8 air port and M10x1.25 rod thread. It generates 402N push and 345N pull at 0.5MPa, 563N push at 0.7MPa, 724N push at 0.9MPa, and a theoretical maximum of 82kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI32X850SLB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI32X850SLB replacement — usually within 7-8 hours.