Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 160mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ125 mm
- Stroke160 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40
The AirTAC SAIJ125X160-40 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 160 mm travel by up to 40 mm. This creates a precise 120-160 mm usable stroke window, giving you the flexibility to fine-tune end positions at commissioning without swapping out the entire actuator. Delivering 6136 N of push force at 0.5 MPa, it is built for heavy-duty positioning tasks.
This model features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and pairs with PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and while this specific SKU lacks a magnet, the design supports AirTAC CMSE reed and DMSE electronic sensors when a magnetized version is specified. It utilizes a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 160 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M27×2 |
| 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 stroke | Up to 1500 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / 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 | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×160 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40 Is Used
Product Size Changeovers
Quickly reconfigure the 120-160 mm travel window on packaging lines when handling different carton sizes, eliminating the need for mechanical stop replacements.
Heavy-Duty Clamping
Leverage the 6136 N push force to secure heavy workpieces during machining, using the rear adjuster to dial in the exact clamp position without over-stroking.
Machine Setup Commissioning
Fine-tune the retract end-position during initial machine commissioning to perfect timing sequences, avoiding the cost of ordering custom-length fixed-stroke SAI cylinders.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40 the Right Cylinder?
Choose this 125 mm bore when you need substantial thrust—stepping down to an 80 mm bore drops the 0.5 MPa push force to 2513 N, while moving up to a 160 mm bore yields 10053 N. The adjustable stroke is ideal for product changeovers on a line, letting you set a variable end-stop on the fly instead of machining external stops. Keep in mind the rear adjuster acts purely as a travel stop and does not hold the load without live air; for true pneumatic locking, consider the SAIL or BSAI series. Because the 160 mm stroke is relatively short for this bore, side-load risks are minimal, but an external guide is still recommended for heavy lateral loads.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40 FAQ
At 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. It can reach a maximum push force of 11045 N at 0.9 MPa.
The rear adjuster screw allows you to shorten the effective travel from the nominal 160 mm down to 120 mm. This creates a 120-160 mm usable stroke window for fine-tuning the end position without changing the cylinder itself.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SAI Cylinders
Request a Quote for Airtac SAIJ125 Adjustable Cylinder SAIJ125AX160-40
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.