Airtac SAIJ200 Adjustable Cylinder SAIJ200X350-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200X350-40S 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
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200X350-40S
The AirTAC SAIJ200X350-40-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the 350 mm nominal stroke by up to 40 mm. This creates a precise 310-350 mm usable travel window, ideal for fine-tuning end positions during machine commissioning without swapping out the hardware. It features a carbon steel piston rod and a PT tapered port thread.
Delivering massive thrust, this 200 mm bore unit generates 15708 N of push force and 15080 N of pull force at 0.5 MPa, scaling up to 21991 N push at 0.7 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports position monitoring using AirTAC CMSE reed or DMSE electronic solid-state switches.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X350-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X350-40S |
|---|---|
| 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 SAIJ200X350-40S
| 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 SAIJ200X350-40S Is Used
Heavy Press Tuning
Dial in the exact 310-350 mm end-stop during heavy press commissioning to accommodate varying material thicknesses without adding external stopper blocks.
Product Size Changeover
Rapidly adapt a conveyor diverter arm's retract distance by up to 40 mm during production line changeovers to handle different package dimensions.
Large Assembly Fixturing
Securely position large automotive or industrial components with 15708 N of thrust while making micro-adjustments to the resting state on the fly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X350-40S the Right Cylinder?
Choose this adjustable model over a fixed-stroke SAI when your application requires variable end-stops or frequent product-size changeovers, as the rear screw acts as a travel stop to refine the retract position instantly. If you need less force, stepping down to a 160 mm bore yields 10053 N push at 0.5 MPa, but this 200 mm bore provides maximum thrust for heavy-duty tasks. Because the 350 mm stroke is substantial, the 40 mm rod diameter and M36x2 thread will handle high side loads, though an external guide is still recommended for unsupported loads over 300 mm.
For exact ISO 15552 replacement, match the 200 mm bore, 350 mm stroke, 40 mm adjustment, PT G3/4 port, and -S magnet. Remember that the rear adjuster and air cushions only decelerate the load; they do not hold position without live air. For fail-safe load holding, select a SAIL (air-released lock) or BSAI (clamp-lock) cylinder instead. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
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 SAIJ200X350-40S FAQ
The rear adjusting screw acts as a mechanical stop that allows you to shorten the effective stroke by up to 40 mm. This provides a usable travel window of 310-350 mm, letting you fine-tune the end position at commissioning without replacing the cylinder.
At 0.5 MPa operating pressure, it provides 15708 N of push force and 15080 N of pull force. At 0.7 MPa, the push force increases to 21991 N.
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