Airtac SAIJ200 Adjustable Cylinder SAIJ200BX155-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX155-50S 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
- 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 SAIJ200BX155-50S
The AirTAC SAIJ200X155-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position. With a nominal 155 mm stroke and a 50 mm adjustment range, it provides a usable travel window of 105 to 155 mm. This enables precise end-position tuning at commissioning without swapping the cylinder or adding external stops. It delivers substantial thrust, pushing 15708 N and pulling 15080 N at 0.5 MPa.
Built with a SUS304 stainless steel rod (code B) and PT tapered ports, this 200 mm bore actuator operates at speeds of 30-500 mm/s. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports position feedback via CMSE reed or DMSE electronic solid-state switches. The rear adjuster acts solely as a travel stop to set deceleration endpoints, meaning it will not hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX155-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX155-50S |
|---|---|
| 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 SAIJ200BX155-50S
| 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 SAIJ200BX155-50S Is Used
Heavy Press Tuning
Dial in the exact end-stop for a heavy press operation during initial commissioning, trimming the travel back within the 105-155 mm window to accommodate different material thicknesses.
Automated Line Changeover
Adjust the retract position on the fly during product-size changeovers without disassembling the actuator or bolting on external physical stops.
Variable End-Position Damping
Set the precise travel endpoint for heavy material handling, allowing the variable air cushion and rear stopper to decelerate the 40 mm rod smoothly.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX155-50S the Right Cylinder?
Choose this 200 mm bore cylinder when your application requires the highest force class, pushing 28274 N at 0.9 MPa. If you need less force, stepping down to a 160 mm bore yields 10053 N of push force at 0.5 MPa, while a 200 mm bore provides 15708 N at the same pressure. The adjustable stroke is ideal for machine setups requiring variable end-stops or product-size changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot provide. Because the stroke is 155 mm, an external guide is recommended to manage side loads on the 40 mm diameter rod.
For ISO 15552 dimensionally interchangeable replacements, match the 200 mm bore, 155 mm stroke, 50 mm adjustment, PT port thread, and the -S magnet requirement. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. If your setup requires load-holding without continuous air pressure, this cylinder's adjuster is not a lock; consider an external rod lock, a pilot-operated check valve, or the AirTAC SAIL or BSAI clamp-lock series 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 SAIJ200 Adjustable Cylinder SAIJ200BX155-50S FAQ
At an operating pressure of 0.5 MPa, this 200 mm bore cylinder provides a push force of 15708 N and a pull force of 15080 N. At 0.9 MPa, the push force increases to 28274 N.
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm. For this 155 mm nominal stroke model, it creates an adjustable travel window of 105 to 155 mm, allowing fine-tuning of the end position without replacing the cylinder.
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