Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 155mm 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
- Stroke155 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-40S
The AirTAC SAIJ200X155-40-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty tasks, delivering 15708N of push force at 0.5MPa. It features a 40mm rear stroke adjuster, creating a usable travel window of 115-155mm to dial in end positions without external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet integrates seamlessly with AirTAC CMSE reed and DMSE electronic switches for precise positioning feedback.
Built with a 40mm SUS420J2 stainless steel rod and PT tapered ports, this unit handles demanding environments. The rear adjuster acts purely as a travel stop for commissioning fine-tuning, not a lock, meaning it cannot hold loads without live air. For load-holding requirements, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 155 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 SAIJ200AX155-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×155 | 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 SAIJ200AX155-40S Is Used
Heavy Stamping Alignment
Fine-tune the 115-155mm stroke during heavy stamping setups to perfectly align pressing depth without swapping out the entire cylinder.
Product Size Changeover
Quickly adjust the rear stopper by up to 40mm to accommodate new product dimensions on a high-force assembly line.
Large Fixture Clamping
Leverage the 15708N push force at 0.5MPa to secure heavy industrial fixtures while using the adjuster to set the exact clamping reach.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX155-40S the Right Cylinder?
Selecting this 200mm bore cylinder is ideal when an application demands extreme thrust, such as 21991N push force at 0.7MPa, alongside variable end-stop positioning. If you need less force, stepping down to a 160mm bore yields 10053N at 0.5MPa. The adjustable 115-155mm window is perfect for product-size changeovers, whereas a fixed SAI cylinder lacks this commissioning flexibility. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Because this is a large-bore cylinder, ensure your mounting configuration supports the substantial 40mm rod and M36x2 thread. Operating speed ranges from 30-500mm/s. If your setup requires holding a load securely without continuous air pressure, do not rely on the air cushion or rear stopper; instead, integrate a pilot-operated check valve or explore the BSAI clamp-lock series.
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 SAIJ200AX155-40S FAQ
At 0.5MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.7MPa, the push force increases to 21991N.
The rear adjuster allows you to shorten the 155mm nominal stroke by up to 40mm, creating a usable travel window of 115-155mm. It acts as a mechanical stop for end-position tuning and is not a locking device.
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