Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-30
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 60mm 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
- Stroke60 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-30
The AirTAC SAIJ125X60-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 30 to 60 mm usable travel window, allowing you to dial back the 60 mm nominal stroke by up to 30 mm during commissioning without adding external stops. It delivers 6136 N of push force at 0.5 MPa and up to 11045 N at 0.9 MPa, making it suited for heavy-duty positioning tasks.
This extruded aluminum barrel design omits tie-rods and includes sensor grooves on both sides for flexible switch mounting. It operates at 30-500 mm/s and uses a PT tapered G1/2 port. The rear adjuster acts purely as a travel stop for end-position tuning; it does not hold the load without live air, so applications requiring true load-holding should use an external rod lock or a related SAIL pneumatic-lock cylinder.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-30 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 60 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 SAIJ125X60-30
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×60 | 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 SAIJ125X60-30 Is Used
Heavy Fixture Positioning
Dials in the exact 30-60 mm retract distance for large machining clamps, ensuring heavy workpieces are held securely without over-traveling.
Product Size Changeovers
Adjusts the stroke end-stop on the fly when a packaging line switches to a different carton size, eliminating the need to physically swap cylinders.
Machine Commissioning
Provides a 30 mm mechanical trim window to fine-tune the final resting position of heavy actuators during initial machine setup and timing synchronization.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-30 the Right Cylinder?
Choose this 125 mm bore model when a 100 mm bore (providing 3927 N push at 0.5 MPa) lacks the thrust for moving heavy fixtures, but a 160 mm bore is physically too large. The adjustable 30-60 mm travel window is ideal for product-size changeovers on a line, letting operators fine-tune the retract end-position quickly instead of swapping out a fixed-stroke SAI cylinder.
When matching an ISO 15552 replacement, verify your bore, 60 mm stroke, 30 mm adjustment range, PT G1/2 port, and required mounting style. SAIJ supports a reduced set of mounts: Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting FB, CA, CB, and CR brackets. Because it lacks a -S magnet suffix, this specific unit cannot host CMSE reed or DMSE electronic sensors without modification.
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 SAIJ125X60-30 FAQ
At a 0.5 MPa operating pressure, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At 0.9 MPa, the push force increases to 11045 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 60 mm nominal stroke by up to 30 mm, creating a 30 to 60 mm usable travel window. It only sets the end-position and does not lock or hold the load without continuous air pressure.
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