This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI160X125SH, 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 SI160X125SH
The AirTAC SI160 Standard Cylinder SI160X125SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø160mm bore and 125mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI160X125SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ160 mm
- Stroke125 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI160X125SH
- 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 SI160X125SH
The AirTAC SI160X125SH is a discontinued double-acting ISO 15552 profile cylinder with a 160 mm bore and 125 mm stroke. It delivers 10053 N push force at 0.5 MPa and features a G3/4 port, M36x2 rod thread, and 50 mm adjustable air cushions. The direct replacement is the SAI160X125SH, sharing the same interface, force, and mounting. The SAI upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life.
This -SH configured unit includes a piston magnet for CS1-B/DS1-B legacy sensors and a Viton H seal, extending the operating temperature from -20...+70 C up to 0-150 C. The SAI family also introduces SAIL, SAIF, and BSAI lock and valve variants absent in the SI line. Remember, a standard cylinder drifts without live air; the cushion only decelerates. For load holding, specify an external rod lock, pilot check valve, or the SAIL/BSAI variant.
Airtac SI160 Standard Cylinder SI160X125SH Technical Specifications
| Model | Airtac SI160 Standard Cylinder SI160X125SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI160X125SH |
| Bore size | Ø160 mm |
| Stroke | 125 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 SAI160X125SH 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 SAI160X125SH 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 SI160X125SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 160 | Bore size in mm. |
| ×125 | 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 SI160X125SH Is Used
Heavy Press Clamping
Generates 14074 N of push force at 0.7 MPa to secure large steel fabrications during heavy-duty machining and welding operations.
High-Tact Forming
Utilizes the 0-150 C Viton H seal to withstand radiant heat from adjacent ovens while performing repetitive stamping cycles.
Replacing the Airtac SI160 Standard Cylinder SI160X125SH with the SAI160X125SH
To replace the discontinued SI160X125SH, order the SAI160X125SH. It is dimensionally interchangeable per the ISO 15552 mounting interface, matching the 160 mm bore, 125 mm stroke, 10053 N force at 0.5 MPa, and G3/4 port. Confirm your mounting accessory (LB, FA, TC, etc.), the PT/G/NPT thread standard, and the -S magnet for current AirTAC switches. The -H Viton seal provides 0-150 C heat resistance. Sizing both ways: this 160 mm bore yields 10053 N push at 0.5 MPa, whereas a 125 mm bore offers 6136 N. If you need to hold a load vertically without live air, add an external rod lock or pilot check valve, or select the SAIL or BSAI lock variant. For any stroke over 300 mm, guide the load to prevent rod bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI160X125SH
- ✓ 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 SI160X125SH FAQ
Yes, the SI160X125SH is discontinued. The direct replacement is the SAI160X125SH. It is dimensionally interchangeable per ISO 15552, matching the 160 mm bore, 125 mm stroke, output force, G3/4 port, and mounting accessories exactly.
This double-acting cylinder has a 160 mm bore, G3/4 port, and M36x2 rod thread. At 0.5 MPa it pushes 10053 N and pulls 9425 N. It pushes 14074 N at 0.7 MPa, 18095 N at 0.9 MPa, and reaches a theoretical max of 2050 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-500 mm/s, and the -H Viton seal supports 0-150 C.
Related AirTAC SAI Cylinders
Request a Quote for the SAI160X125SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI160X125SH replacement — usually within 7-8 hours.