This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X500SLB, 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 SI160 Standard Cylinder SI160X500SLB
The AirTAC SI160 Standard Cylinder SI160X500SLB is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 500mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X500SLB, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X500SLB
- 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 SI160 Standard Cylinder SI160X500SLB
The AirTAC SI160X500SLB is a discontinued double-acting ISO 15552 profile cylinder with a 500 mm stroke and LB foot mount. Delivering 10053 N push force at 0.5 MPa, it features a G3/4 port, M36x2 rod thread, and 50 mm cushions. The direct replacement is the SAI160X500SLB, matching the exact ISO 15552 mounting interface, bore, and output force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants. The -S magnet works with CS1-B/DS1-B sensors, while a Viton H seal raises temps to 150 C.
Airtac SI160 Standard Cylinder SI160X500SLB Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X500SLB |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X500SLB |
| Bore size | Ø160 mm |
| Stroke | 500 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI160X500SLB carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø160mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 10053 N | 9425 N |
| 0.7 MPa | 14074 N | — |
| Max (@1.0 MPa) | 2050 kgf | |
The SAI160X500SLB produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI160 Standard Cylinder SI160X500SLB
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×500 | 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 SI160 Standard Cylinder SI160X500SLB Is Used
Heavy Machinery Forming
Drives large presses and forming fixtures requiring 10053 N thrust at 0.5 MPa with robust LB foot mounting.
Palletized Material Lift
Hoists heavy loads vertically; the 500 mm stroke accommodates deep lifts when paired with external guide rails.
Automated Clamp Systems
Secures oversized components during machining, benefiting from the 50 mm adjustable cushions to brake heavy masses.
Replacing the Airtac SI160 Standard Cylinder SI160X500SLB with the SAI160X500SLB
To replace the SI160X500SLB, order the SAI160X500SLB. Confirm the ISO 15552 LB foot mount interface, 160 mm bore, 500 mm stroke, G3/4 port (PT/G/NPT), and the -S magnet for CS1-B/DS1-B switches. Sizing both ways: a 125 mm bore yields 6136 N [email protected], while a 200 mm bore yields 15708 N. For load holding, note that a plain cylinder drifts on air loss as cushions only decelerate; use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. With a 500 mm stroke, use external guides to prevent rod bending and side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X500SLB
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI160 Standard Cylinder SI160X500SLB FAQ
Yes, the SI160X500SLB is discontinued. The direct replacement is the SAI160X500SLB. It shares the identical ISO 15552 mounting interface, 160 mm bore, 500 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder uses a G3/4 port. Force output is 10053 N push and 9425 N pull at 0.5 MPa, 14074 N push at 0.7 MPa, 18095 N push at 0.9 MPa, and a theoretical max of 2050 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X500SLB
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X500SLB replacement — usually within 7-8 hours.