Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-50S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-50S 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 SAIJ125X60-50S
The AirTAC SAIJ125X60-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 10 to 60 mm from its 60 mm nominal stroke. Fitted with a carbon steel rod and a -S magnet, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic sensors via the dual-side barrel grooves. Delivering 6136 N of push force at 0.5 MPa, it provides robust actuation for heavy payloads.
The 50 mm adjustment range allows operators to fine-tune end positions during commissioning without swapping hardware. This extruded aluminum profile cylinder omits the FB, CA, CB, and CR mounts, utilizing a reduced interface of Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear stopper and variable air cushions decelerate motion, but neither will hold the load without live air pressure.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-50S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-50S |
|---|---|
| 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 SAIJ125X60-50S
| 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 SAIJ125X60-50S Is Used
Variable End-Stop Tuning
Dial in the exact 10 to 60 mm travel window during machine setup to perfect heavy pressing operations without external shims.
Product Changeover
Quickly reposition the rear stopper on a packaging line when product sizes change, minimizing downtime between runs.
Heavy Assembly Pressing
Leverage the 6136 N push force at 0.5 MPa to seat large components, using the adjuster to limit over-travel.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X60-50S the Right Cylinder?
Choose this 125 mm bore when a 100 mm bore (3927 N at 0.5 MPa) is insufficient for your heavy product changeover tooling. The adjustable stroke is ideal for dialing in exact end stops on the fly, whereas a fixed SAI cylinder locks you to a single dimension. To replace this ISO 15552 unit, match the 125 mm bore, 60 mm stroke, 50 mm adjustment, PT G1/2 ports, and -S magnet.
For load-holding without continuous air pressure, the rear adjuster acts only as a travel stop, so you must specify an SAIL pneumatic lock, a BSAI clamp-lock, or an external rod lock. The 32 mm rod and M27x2 thread handle high side loads, though any stroke exceeding 300 mm still requires an external guide.
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 SAIJ125X60-50S FAQ
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.
A rear screw stopper lets you trim the 60 mm nominal stroke back by up to 50 mm, creating a 10 to 60 mm usable travel window for fine-tuning end positions.
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 SAIJ125X60-50S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.