Airtac SAIJ125 Adjustable Cylinder SAIJ125X600-30S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X600-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 600mm 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
- Stroke600 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X600-30S
The AirTAC SAIJ125X600-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 570 to 600 mm. It delivers substantial thrust, generating 6136 N of pull force and 8590 N of push force at a 0.7 MPa operating pressure. The PT tapered port threads and standard carbon steel rod ensure robust, leak-free pneumatic performance in heavy-duty industrial environments.
Because this is a profile cylinder featuring an extruded aluminum barrel with sensor grooves on both sides, it accommodates AirTAC CMSE reed and DMSE electronic sensors seamlessly thanks to the integrated -S magnet. The rear adjuster functions strictly as a mechanical stop to dial in end-position tuning during commissioning without adding external stops. It is not a locking mechanism, so load-holding without live air requires a related type like the SAIL or BSAI.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X600-30S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X600-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 600 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 SAIJ125X600-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×600 | 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 SAIJ125X600-30S Is Used
Heavy-Duty Press Changeover
Dial in the 570-600 mm travel window during product-size changeovers on large forming presses without replacing the entire cylinder or adding external mechanical stops.
Pallet Positioning Stops
Acts as an adjustable end stop for heavy pallets on assembly lines, allowing quick 30 mm retraction adjustments to accommodate varying package dimensions.
Large Fixture Clamping
Provides up to 6136 N of pull force for securing large machining fixtures, using the rear adjuster to fine-tune the clamping depth precisely at commissioning.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X600-30S the Right Cylinder?
Select this 125 mm bore when your application requires heavy force beyond the 80 mm bore class (which provides 2268 N pull at 0.5 MPa) but not quite the 9425 N pull of the 160 mm class. The 30 mm rear adjustment is ideal for product-size changeovers on a line, allowing operators to fine-tune the end stop in minutes instead of swapping out a fixed-stroke SAI cylinder. When matching ISO 15552 replacements, verify the 600 mm stroke, 30 mm adjustment range, PT port threads, and the -S magnet requirement.
With a 600 mm stroke, the 32 mm diameter carbon steel rod and M27x2 thread provide high tensile strength, but long unsupported strokes still require an external guide to prevent excessive side-loading and premature seal wear. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets. Speeds for this large bore are limited to 30-500 mm/s to maintain control.
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 SAIJ125X600-30S FAQ
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke by up to 30 mm, providing a usable travel window of 570 to 600 mm. It only sets the travel end and does not lock or hold the load without live air pressure.
At 0.5 MPa, it provides 6136 N of push force and 5734 N of pull force. At 0.7 MPa, the push force increases to 8590 N, making it suitable for heavy-duty clamping and pressing applications.
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 SAIJ125X600-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.