This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X400SH, 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 SI160X400SH
The AirTAC SI160 Standard Cylinder SI160X400SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 400mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X400SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke400 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X400SH
- 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 SI160X400SH
The AirTAC SI160X400SH is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 400 mm stroke. It delivers 10053 N push force at 0.5 MPa, featuring a G3/4 port, M36x2 rod thread, and a high-temp Viton H seal rated for 0 to 150 C. AirTAC replaced this EOL unit with the SAI160X400SH, a direct sharing the exact ISO 15552 mounting interface, bore, stroke, force, and port.
The SAI upgrade introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The original SI-S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family expands options with SAIL lock, SAIF valve, and BSAI clamp-lock variants.
Airtac SI160 Standard Cylinder SI160X400SH Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X400SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X400SH |
| Bore size | Ø160 mm |
| Stroke | 400 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 SAI160X400SH 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 SAI160X400SH 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 SI160X400SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×400 | 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 SI160X400SH Is Used
Heavy Machinery Forming
Drives large press platens and forming dies requiring 10053 N thrust at 0.5 MPa with high-temp Viton H seals.
Automated Heavy Transfer
Shifts bulk materials or heavy assemblies along production lines, relying on adjustable 50 mm air cushions to decelerate.
Replacing the Airtac SI160 Standard Cylinder SI160X400SH with the SAI160X400SH
To replace this SI160X400SH, order the SAI160X400SH. Verify your ISO 15552 mounting fixture (foot, flange, or trunnion), the G3/4 air port, and the M36x2 rod thread. The -S magnet enables CS1-B/DS1-B switches, and the -H Viton seal handles 0-150 C environments. If you need more force than the 10053 N at 0.5 MPa, step up to the 200 mm bore; if less is required, the 125 mm bore offers 6136 N. For this 400 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X400SH
- ✓ 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 SI160X400SH FAQ
Yes, the SI160X400SH is discontinued. The direct replacement is the SAI160X400SH. It shares the same ISO 15552 mounting interface, 160 mm bore, 400 mm stroke, force, and G3/4 port, fitting directly into your existing fixtures.
The bore is 160 mm with a G3/4 port. The thrust 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. It operates at 30-500 mm/s with a 50 mm cushion.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X400SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X400SH replacement — usually within 7-8 hours.