Airtac SAIJ200 Adjustable Cylinder SAIJ200BX50-20S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200BX50-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 50mm 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
- Stroke50 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 SAIJ200BX50-20S
The AirTAC SAIJ200X50-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers massive thrust, generating 21991N push and 15080N pull at 0.7 MPa. By turning the external rear screw, operators can shorten the effective travel, creating a precise 30-50 mm usable window for exact end-position tuning without adding external stops.
This unit features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. Fluid supply connects via PT tapered G3/4 ports. The extruded aluminum barrel provides dual-side sensor grooves, and the assembly supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB and CA options.
Airtac SAIJ200 Adjustable Cylinder SAIJ200BX50-20S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200BX50-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 50 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 SAIJ200BX50-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×50 | 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 SAIJ200BX50-20S Is Used
Heavy Press Tuning
Dial in the exact 30-50 mm travel window during heavy press commissioning to accommodate material thickness variations without changing the cylinder.
Product Changeover
Rapidly adjust the retract end-position on a production line when switching to a new product size, using the rear stopper instead of mechanical spacers.
High-Force Clamping
Secure heavy industrial components with up to 15708N max force at 1.0 MPa while benefiting from the corrosion-resistant SUS304 rod.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200BX50-20S the Right Cylinder?
Choose this 200 mm bore when an application demands exceptional force, stepping up from a 160 mm bore that provides 9425N pull at 0.5 MPa. The adjustable stroke is ideal for machine setup and product changeover, allowing you to fine-tune the retract end-stop on the fly instead of swapping a fixed-stroke SAI cylinder. Keep in mind the rear adjuster is a travel stop, not a lock; it will not hold a load without live air pressure, so consider a SAIL or BSAI cylinder for true fail-safe holding.
When matching an ISO 15552 replacement, verify the 200 mm bore, 50 mm nominal stroke, 20 mm adjustment range, PT G3/4 ports, SUS304 (B) rod material, and the -S magnet option. Operating speed is 30-500 mm/s. Although the stroke is short, the 40 mm rod and M36x2 thread handle high stress, but any long-stroke variant over 300 mm would require an external guide to manage side loads.
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 SAIJ200BX50-20S FAQ
At 0.5 MPa, it provides 15708N push and 15080N pull. At the maximum operating pressure of 1.0 MPa, the push force reaches 3204 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 50 mm stroke by up to 20 mm. This creates a usable travel window of 30-50 mm for fine-tuning the end position at commissioning.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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