Airtac SAIJ125 Adjustable Cylinder SAIJ125AX220-10
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125AX220-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX220-10
The AirTAC SAIJ125X220-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the retract end-position by up to 10 mm. This yields a usable travel window of 210 to 220 mm, letting you dial in machine stops during commissioning without adding external physical stops or swapping the actuator. It features a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and uses PT tapered port threads.
Belonging to the 125 mm bore class, this actuator generates 6136 N of push force and 5734 N of pull force at 0.5 MPa, reaching a maximum of 1251 kgf at 1.0 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches, though a magnet is not specified for this configuration. It supports a speed range of 30-500 mm/s and utilizes a 40 mm cushion length at both ends to absorb kinetic energy.
Airtac SAIJ125 Adjustable Cylinder SAIJ125AX220-10 Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125AX220-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 220 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 SAIJ125AX220-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×220 | 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 SAIJ125AX220-10 Is Used
Product Changeovers
Dial in the 210-220 mm travel window during format changes on packaging lines, using the rear screw to set new end positions instantly without hardware swaps.
Press Fit Tuning
Leverage the 6136 N thrust at 0.5 MPa for pressing assemblies, making 10 mm end-position adjustments to compensate for material thickness variations.
Machine Commissioning
Fine-tune the retract stop during initial machine setup, avoiding the need to dismount the cylinder to add or remove mechanical shims.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125AX220-10 the Right Cylinder?
Select this 125 mm bore model when an application requires heavy thrust—such as 6136 N at 0.5 MPa—combined with precise end-position tuning. If your process requires slightly less force and a smaller footprint, stepping down to a 100 mm bore yields 3927 N push force at 0.5 MPa. Choose the SAIJ adjustable version over a fixed SAI cylinder when you anticipate product size changes on a line and need a variable internal end-stop rather than machining new external spacers.
When replacing an ISO 15552 cylinder, match the 125 mm bore, 220 mm stroke, 10 mm adjustment range, PT tapered ports, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2—omitting FB, CA, CB, CR). Because the 220 mm stroke exceeds 300 mm, external guiding is not strictly mandated, but the 32 mm rod and M27x2 thread handle substantial side loads. Remember that the rear adjuster acts only as a travel stop; for load-holding without live air pressure, integrate an external rod lock or specify a SAIL or BSAI series cylinder.
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 SAIJ125AX220-10 FAQ
At 0.5 MPa, this 125 mm bore cylinder provides 6136 N of push force and 5734 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers 1251 kgf.
A rear screw stopper lets you shorten the effective travel by up to 10 mm, creating a 210-220 mm adjustable window. It sets the retract end position and is not a lock; it will not hold the load without live air pressure.
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 SAIJ125AX220-10
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.