Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-50S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 240mm 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
- Stroke240 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-50S
The AirTAC SAIJ200X240-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down by up to 50 mm, creating a precise 190-240 mm usable window. Delivering immense thrust, it provides 15708 N of push force and 15080 N of pull force at 0.5 MPa, scaling up to a maximum of 3204 kgf at 1.0 MPa. The SUS420J2 stainless steel rod offers enhanced corrosion resistance for demanding environments.
Equipped with a magnet for position sensing, this unit works seamlessly with AirTAC CMSE reed switches and DMSE solid-state electronic sensors. It utilizes PT tapered G3/4 ports and shares the standard SAI extruded aluminum barrel with sensor grooves on both sides. The rear adjustment screw acts purely as a mechanical stop to dial in end positions during commissioning, meaning it cannot hold a load without live air pressure.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-50S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 240 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 SAIJ200AX240-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×240 | 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 SAIJ200AX240-50S Is Used
Heavy Press Changeovers
Dial in the 190-240 mm travel window during product size changeovers to set precise heavy-duty press end positions without external physical stops.
Commissioning Fine-Tuning
Use the rear screw to trim the final end-position by up to 50 mm during machine setup, avoiding the need to physically swap cylinders for minor length corrections.
High-Force Positioning
Leverage the 15708 N push force at 0.5 MPa to move heavy pallets or tooling, adjusting the stroke on the fly to match varying workpiece dimensions.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX240-50S the Right Cylinder?
Selecting this 200 mm bore size is appropriate when applications require extreme force that smaller bores cannot provide, such as stepping up from a 160 mm bore that yields 10053 N push at 0.5 MPa. An adjustable stroke is chosen over a fixed SAI cylinder when a machine requires variable end-stops to accommodate product size changeovers without physically swapping out the actuator. For true load-holding without continuous air pressure, this cylinder is insufficient as the adjuster is only a stop; you should consider an external pilot-operated check valve, or AirTAC SAIL or BSAI series cylinders.
When ordering for an ISO 15552 dimensional replacement, verify the 200 mm bore, 240 mm stroke, 50 mm adjustment, PT G3/4 ports, SUS420J2 rod, and the -S magnet. Because the 240 mm stroke is relatively short for this massive bore, side-load risks are minimal, but an external guide is always recommended for heavy 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 SAIJ200AX240-50S FAQ
At 0.5 MPa it provides 15708 N of push force and 15080 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers a maximum thrust of 3204 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the 240 mm nominal stroke by up to 50 mm, giving a usable travel window of 190-240 mm. It only sets the end position and does not lock or hold the load without live air pressure.
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