Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-20
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 60mm 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
- Stroke60 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-20
The AirTAC SAIJ40X60-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 60 mm stroke by up to 20 mm. This creates a highly versatile 40-60 mm usable travel window, perfect for fine-tuning end positions during commissioning without swapping hardware. It delivers 628 N of push force at 0.5 MPa, making it a solid mid-range choice for general automation.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads (G1/4). The extruded aluminum barrel includes sensor grooves on both sides, though this specific configuration ships without a magnet. Remember that the rear adjuster acts strictly as a mechanical stop to set deceleration, not as a lock to hold the load without live air pressure.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-20 Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 60 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 SAIJ40BX60-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | 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 SAIJ40 Adjustable Cylinder SAIJ40BX60-20 Is Used
Machine Changeover
Dial in the 40-60 mm travel window during product size changes without bolting on external stops or replacing the cylinder.
End-Position Tuning
Fine-tune the retract end at commissioning to perfect tooling alignment using the built-in rear adjustment screw.
Assembly Stations
Provide adaptable actuation on assembly lines where slight stroke variations are needed for different workpiece heights.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX60-20 the Right Cylinder?
Choose this 40 mm bore when you need 628 N of push force at 0.5 MPa, stepping up from a 32 mm bore (402 N) for heavier tooling, or down from a 50 mm bore (982 N) to save space. The adjustable 40-60 mm travel window is ideal for machine setups requiring variable end-stops or product changeovers, avoiding the need to inventory multiple fixed-stroke SAI cylinders. Because the stroke is under 300 mm, side-load stress is manageable, but always guide the load externally for optimal seal life. For drop-in compatibility, match the 40 mm bore, 60 mm stroke, PT port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ40BX60-20 FAQ
At 0.5 MPa, this 40 mm bore cylinder provides 628 N of push force and 528 N of pull force. It operates at speeds ranging from 30 to 800 mm/s.
The rear adjuster screw lets you mechanically shorten the 60 mm nominal stroke by up to 20 mm, providing a usable travel window of 40 to 60 mm. This screw acts as a travel stop and does not lock the load without 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 SAIJ40BX60-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.