Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 210mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke210 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S
The AirTAC SAIJ40X210-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to 200-210 mm. Delivering 879N of push force at 0.7 MPa, it uses a SUS304 stainless steel rod (code B) for superior corrosion resistance. The barrel integrates sensor grooves on both sides, and this -S variant includes a magnet for precise position detection.
Because the adjuster acts as a mechanical stop on the retract end, you can dial in the exact end-position during commissioning without adding external stops. The rear screw and the variable air cushion only decelerate the travel end; neither will hold a load without live air pressure. For load-holding without continuous air, consider the SAIL or BSAI series.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 210 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×210 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX210-10S Is Used
Machine Changeover
Dial in the 200-210mm travel window during product size changes to set new end-stops rapidly without replacing hardware.
End-Position Tuning
Fine-tune the retract end position at commissioning using the rear screw, perfect for aligning delicate tooling or stops.
Variable End Stops
Adjust the stroke on packaging conveyors to accommodate different carton lengths without needing a new cylinder.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S the Right Cylinder?
Choose this 40mm bore cylinder when an application requires 879N of thrust at 0.7 MPa and a slightly shorter travel than a standard 210mm stroke. The 10mm adjustment window is ideal for product changeovers on a line, letting you shift the end-stop by a few millimeters without swapping the cylinder. If your setup needs less force, the 32mm bore provides 563N; if you need more, the 50mm bore offers 1374N.
When replacing an ISO 15552 cylinder, match the 40mm bore, 210mm nominal stroke, 10mm adjustment, and PT tapered port threads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Since the stroke is 210mm, ensure proper external guidance to prevent excessive side-loading on the M12x1.25 rod thread.
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 SAIJ40 Adjustable Cylinder SAIJ40BX210-10S FAQ
At 0.7 MPa operating pressure, this 40mm bore cylinder provides 879N of push force and 528N of pull force. It can deliver up to 1130N push force at 0.9 MPa.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from 210mm down to 200mm. It allows precise end-position tuning during setup but does not lock or 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.
Request a Quote for Airtac SAIJ40 Adjustable Cylinder SAIJ40BX210-10S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.