Airtac SAIJ40 Adjustable Cylinder SAIJ40BX700-10S
The AirTAC Airtac SAIJ40 Adjustable Cylinder SAIJ40BX700-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 700mm 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
- Stroke700 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX700-10S
The AirTAC SAIJ40X700-10-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the effective travel back by up to 10 mm. This yields a precise 690-700 mm usable stroke window, allowing you to dial in the retract end-position at commissioning without adding external stops. In the 40 mm bore class, it delivers 628 N of push thrust and 528 N of pull thrust at a 0.5 MPa operating pressure.
This SKU is built with a SUS304 stainless steel rod for superior corrosion resistance and ships with a magnet for position sensing. The extruded aluminum barrel includes sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic switches. Fluid is filtered air, operating pressure spans 0.15-1.0 MPa, and the standard variable air cushions at both ends manage end-of-stroke deceleration.
Airtac SAIJ40 Adjustable Cylinder SAIJ40BX700-10S Technical Specifications
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40BX700-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 700 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 SAIJ40BX700-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×700 | 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 SAIJ40BX700-10S Is Used
Machine Commissioning
Dial in the exact 690 to 700 mm retract position during setup, absorbing mechanical tolerance stack-ups without machining external stopper blocks.
Product Changeover
Quickly shift the end-stop by up to 10 mm when running a slightly shorter product profile on the line, minimizing downtime between batches.
Stainless Rod Actuation
Leverage the SUS304 rod and 628 N push force for packaging or handling tasks where moisture resistance and moderate thrust are both required.
Is the Airtac SAIJ40 Adjustable Cylinder SAIJ40BX700-10S the Right Cylinder?
Choose this 40 mm bore when an application requires moderate force (628 N push at 0.5 MPa) but needs finer end-position tuning than a fixed-stroke SAI cylinder offers. If your process demands greater thrust, stepping up to the 50 mm bore provides 982 N push, whereas dropping to a 32 mm bore limits you to 402 N. The integrated -10 mm adjuster is ideal for product changeovers on a line, letting you shift the end-stop by a few millimeters rather than swapping the actuator.
Because this cylinder uses a 700 mm stroke, the 16 mm diameter rod is highly susceptible to side-loading and sagging; an external guide rail is strongly recommended to prevent premature seal wear. For exact ISO 15552 dimensional interchangeability, match the 40 mm bore, 700 mm stroke, PT tapered port threads, and the -S magnet option. Remember that the rear adjuster is a travel stop, not a locking device; if the machine loses air pressure, the cylinder will not hold its load. For true fail-safe holding without live air, specify an SAIL pneumatic lock or BSAI clamp-lock cylinder instead.
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 SAIJ40BX700-10S FAQ
A rear-mounted adjusting screw acts as a mechanical stopper, allowing you to shorten the nominal 700 mm stroke by up to 10 mm. This creates a 690-700 mm travel window for fine-tuning the retract position. The adjuster only sets the end position; it does not lock the load when air pressure is removed.
At 0.5 MPa, the cylinder provides 628 N of push force and 528 N of pull force. The operational speed range is 30-800 mm/s, driven by G1/4 PT tapered ports and decelerated by 30 mm variable air cushions at both ends.
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