Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 350mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ200 mm
- Stroke350 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40S
The AirTAC SAIJ200X350-40-S is a double-acting, single-rod ISO 15552 profile cylinder engineered for heavy-duty applications. It features a SUS420J2 stainless steel rod and a built-in magnet (-S) for direct compatibility with CMSE reed and DMSE electronic sensors. By integrating a rear adjusting screw, this model provides a usable travel window of 310-350 mm, allowing you to dial back the 350 mm nominal stroke by up to 40 mm without external stops.
Delivering immense thrust, this 200 mm bore unit generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, peaking at 3204 kgf at 1.0 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and the G3/4 PT tapered ports ensure high airflow for its 30-500 mm/s operating speed range.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 350 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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, 50 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 (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×350 | 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 SAIJ200 Adjustable Cylinder SAIJ200AX350-40S Is Used
Heavy Stamping Alignment
Fine-tune the 310-350 mm travel window during die changeovers to precisely set the pressing depth without physically swapping out the entire cylinder.
Large Assembly Presses
Leverage the 15708 N push force at 0.5 MPa to seat heavy industrial components, using the rear stopper to perfectly dial in the final end position.
Variable Length Cutoff
Adjust the retract end-position on the fly for product-size changes on a high-force line, utilizing the SUS420J2 stainless steel rod for durability.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX350-40S the Right Cylinder?
Select this 200 mm bore cylinder when your machinery requires extreme force, stepping up significantly from a 160 mm bore that provides 10053 N push force at 0.5 MPa. The adjustable stroke is ideal for fine-tuning end positions during commissioning or product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. For any stroke length of 350 mm, the M36x2 rod thread and 40 mm rod diameter provide substantial rigidity, but an external guide is still recommended to manage side loads on long unsupported travels.
When specifying a replacement, ensure the ISO 15552 footprint matches exactly: 200 mm bore, 350 mm nominal stroke, 40 mm adjustment, PT tapered G3/4 ports, and the -S magnet. Remember that the rear adjuster functions strictly as a travel stop for deceleration alongside the air cushions; it does not hold the load without live air. For positive load-holding, consider an AirTAC SAIL or BSAI cylinder. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ200 Adjustable Cylinder SAIJ200AX350-40S FAQ
At 0.5 MPa, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. At its maximum operating pressure of 1.0 MPa, it delivers a peak force of 3204 kgf.
The rear adjusting screw acts as a mechanical stop that lets you trim the effective stroke back by up to 40 mm, creating a usable travel window of 310-350 mm. It only sets the travel end and does not lock the load without continuous air pressure.
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