Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30S
The AirTAC Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø125mm bore and 195mm 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
- Stroke195 mm
- Port sizeG1/2
- Acting typeDouble acting
- Rod threadM27×2
- CushionAdjustable, 40 mm
About the Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30S
The AirTAC SAIJ125X195-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It delivers a robust 6136N push force at 0.5 MPa, making it suited for heavy-duty positioning tasks. The integrated -S magnet enables position feedback via CMSE reed and DMSE electronic sensors mounted in the dual-side barrel grooves.
This specific SKU provides a 195mm nominal stroke that can be dialed back by up to 30mm, creating a 165-195mm usable travel window. This built-in adjustability allows operators to fine-tune the retract end-position at commissioning or during product changeovers without swapping the cylinder or adding external stops. It features a 32mm carbon steel rod, PT tapered port threading, and a 40mm cushion length to manage deceleration.
Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30S Technical Specifications
| Model | Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø125 mm |
| Stroke | 195 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 SAIJ125X195-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 125 | Bore size in mm. |
| ×195 | 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 SAIJ125X195-30S Is Used
Variable End-Stop Positioning
Dial in the retract position within the 165-195mm window during machine setup to accommodate varying product dimensions without mechanical rework.
Product Changeover Systems
Rapidly adjust the cylinder's effective travel on packaging lines when switching between different package sizes, minimizing downtime.
Heavy-Duty Pressing
Leverage the 6136N thrust at 0.5 MPa for pressing and forming operations that require precise end-position tuning to control material deformation.
Is the Airtac SAIJ125 Adjustable Cylinder SAIJ125X195-30S the Right Cylinder?
Selecting this 125mm bore over a smaller 100mm variant provides a significant jump in force, moving from 3927N to 6136N at 0.5 MPa. The adjustable stroke is chosen over a fixed SAI cylinder when a machine requires variable end-stops to accommodate different product sizes on the same line. For replacement, match the 125mm bore, 195mm stroke, 30mm adjustment, PT port, and -S magnet.
With a 195mm stroke, the 32mm carbon steel rod provides substantial rigidity, but long unsupported strokes still require an external guide to prevent side-loading damage. Note that the rear adjuster acts purely as a mechanical travel stop and does not hold the load without live air pressure; for true load-holding without supply pressure, consider an AirTAC SAIL or BSAI 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 SAIJ125X195-30S FAQ
It features an external adjusting screw at the rear that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 30mm. This creates a usable travel window of 165-195mm, enabling fine-tuning of the end position without replacing the cylinder.
At a 0.5 MPa operating pressure, the SAIJ125X195-30-S generates a push force of 6136N and a pull force of 5734N. At the maximum 1.0 MPa pressure, it can deliver up to 1251 kgf of thrust.
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 SAIJ125X195-30S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.