This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAID125X160, 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 SID Series Double-Rod Cylinder SID125X160
The AirTAC Airtac SID Series Double-Rod Cylinder SID125X160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø125mm bore and 160mm stroke, G1/2 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAID125X160, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ125 mm
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2.0
- StatusDiscontinued → SAID125X160
- 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 SID Series Double-Rod Cylinder SID125X160
The AirTAC SID125X160 is a double-acting double-rod ISO 15552 cylinder where a rod exits both ends, yielding equal force both ways (5734 N at 0.5 MPa). This SKU lacks a magnet (-S) and cannot accept magnetic switches. It features a 32 mm rod, M27x2 thread, and a G1/2 port. The SID line is discontinued; the direct replacement is the SAID125X160, reusing the same mounting interface and bore.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Remember, air cushions only decelerate; they do not hold loads on air loss.
Airtac SID Series Double-Rod Cylinder SID125X160 Technical Specifications
| Model | Airtac SID Series Double-Rod Cylinder SID125X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAID125X160 |
| Bore size | Ø125 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2.0 |
| 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, 40 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAID125X160 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa | 8590 N | — |
| Max (@1.0 MPa) | 1251 kgf | |
The SAID125X160 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SID Series Double-Rod Cylinder SID125X160
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 125 | Bore size in mm. |
| ×160 | 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 SID Series Double-Rod Cylinder SID125X160 Is Used
Equal-Force Workpiece Transfer
Drives a transfer carriage where the equal both-ways force of the 125 mm bore ensures consistent push and pull dynamics without the asymmetry of a single-rod cylinder.
Dual-Tool Synchronized Drive
The exiting rear rod operates a secondary mechanism or rejects a part on the return stroke, utilizing the double-rod layout to drive two separate tools from one piston.
Anti-Rotation Vertical Lift
Lifts heavy pallets or fixtures in material handling, where the twin rods prevent rotational twist and maintain precise vertical alignment under a 292 kg safe lift load.
Replacing the Airtac SID Series Double-Rod Cylinder SID125X160 with the SAID125X160
Replace the discontinued SID125X160 directly with the SAID125X160, which preserves the G1/2 port, 32 mm rod, and ISO 15552 mounting dimensions (Basic, FA, LB, TC). Choose a double-rod configuration when you need equal push/pull force, anti-rotation stability, or a back rod to drive a second tool. If sizing both ways, verify force against neighbouring bores (100 mm or 160 mm) to maintain equal both-ways dynamics. Since this non-magnetic SKU cannot use sensors, external positioning is required. For stroke lengths of 300 mm or more, carefully manage side-load moments to prevent guide wear. For load-holding, do not rely on the cushion; use an external rod lock or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAID125X160
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SID Series Double-Rod Cylinder SID125X160 FAQ
Yes, the SID125X160 is discontinued. The direct replacement is the SAID125X160, which shares the same ISO 15552 mounting interface, 160 mm stroke, G1/2 port, and equal both-ways force.
Force is equal both ways at 5734 N @0.5 MPa, 8028 N @0.7 MPa, and 10321 N @0.9 MPa. Operating speed is 30-500 mm/s. It uses a G1/2 port and features 40 mm adjustable air cushions at each end.
Related AirTAC SAI Cylinders
Request a Quote for the SAID125X160
Send us the quantity and destination. We confirm price, stock and lead time on the SAID125X160 replacement — usually within 7-8 hours.