Airtac SAIJ200 Adjustable Cylinder SAIJ200BX185-100S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX185-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 185mm 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
- Stroke185 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 SAIJ200BX185-100S
The AirTAC SAIJ200X185-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates an 85-185mm usable travel window from its 185mm nominal stroke. Built with a SUS304 stainless steel rod and a PT tapered port, it delivers a robust 15708N push force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports precise position detection using AirTAC CMSE reed and DMSE electronic solid-state switches.
This 200mm bore model uses a substantial 40mm rod and M36x2 thread to handle high side loads, though long unsupported strokes still require an external guide. The rear adjuster functions strictly as a mechanical stop for fine-tuning end positions during commissioning or product changeovers without swapping the cylinder. It does not hold the load without live air pressure; for load-holding without continuous air, consider the SAIL or BSAI series.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX185-100S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX185-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 185 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 SAIJ200BX185-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×185 | 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 SAIJ200BX185-100S Is Used
Variable End-Stop Machining
Dial in the 85-185mm travel window during setup to accommodate multiple part lengths on a single fixture without external stops.
Product Changeover Systems
Quickly adjust the rear mechanical stop to adapt the 15708N stroke endpoint for new product dimensions on automated lines.
Heavy-Duty Forming Press
Leverage the 40mm SUS304 rod and high force output for reliable positioning, using CMSE/DMSE sensors to confirm the adjusted end position.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX185-100S the Right Cylinder?
Choose this 200mm bore size when your application requires maximum thrust up to 15708N at 0.5 MPa, stepping up from a 160mm bore that provides 10053N. The 100mm adjustment range is ideal for machinery requiring variable end stops across different product sizes, replacing the need for fixed-stroke SAI cylinders and external stop blocks. It supports a speed range of 30-500 mm/s and uses the reduced SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2. When replacing an ISO 15552 cylinder, match the 200mm bore, 185mm stroke, 100mm adjustment, PT port, SUS304 rod, and -S magnet.
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 SAIJ200BX185-100S FAQ
At 0.5 MPa operating pressure, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. It can reach a maximum push force of 21991N at 0.7 MPa.
The rear adjuster acts as a mechanical stop that allows you to trim the effective travel from the 185mm nominal stroke down to as little as 85mm, creating an 85-185mm usable window. It is a stop for fine-tuning, not a lock, and does not hold the load without live air.
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