Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-30S
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X40-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 40mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ200 mm
- Stroke40 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 SAIJ200X40-30S
The AirTAC SAIJ200X40-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering massive thrust up to 15708N at 0.5 MPa. By integrating a 30mm adjustment mechanism, this model transforms a standard 40mm stroke into a highly versatile 10-40mm usable travel window. This allows operators to dial in the exact retract end-position during commissioning without swapping out the hardware.
Built with a carbon steel piston rod and a -S magnet, the unit is fully compatible with AirTAC CMSE reed and DMSE solid-state sensors housed within the dual-side extruded aluminum barrel grooves. The rear adjuster functions purely as a mechanical stop to set the travel limit, working in tandem with the 50mm variable air cushions to decelerate the load. It does not hold the load without live air pressure, so applications requiring true position holding without supply pressure must utilize a SAIL pneumatic lock, BSAI clamp-lock, or an external rod lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-30S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 40 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 | 15080 N | 15080 N |
| 0.7 MPa | 21111 N | — |
| Max (@1.0 MPa) | 3075 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×40 | 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 SAIJ200X40-30S Is Used
Machine Setup Calibration
Dial in the exact 10-40mm retract position during initial commissioning to perfectly align heavy clamping forces without machining external stopper blocks.
Product Size Changeover
Quickly adapt the end-stop on automated lines handling varying product dimensions by adjusting the rear screw up to 30mm instead of replacing the cylinder.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X40-30S the Right Cylinder?
When selecting this cylinder, the 200mm bore size provides extreme force capabilities, pushing 15708N and pulling 15080N at 0.5 MPa. The adjustable 10-40mm travel window is ideal for machine setups requiring variable end-stops or frequent product-size changeovers, replacing the need for fixed-stroke SAI cylinders when exact positioning is subject to fine-tuning.
For an exact ISO 15552 replacement match, verify the 200mm bore, 40mm nominal stroke, 30mm adjustment range, PT tapered port threads, and the -S magnet option. Although the 40mm stroke is short, the substantial 40mm rod diameter handles high side loads well; however, any application exceeding a 300mm stroke would require an external guide to prevent rod binding. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR configurations.
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 SAIJ200X40-30S FAQ
It operates at a speed range of 30-500 mm/s.
The rear adjuster acts as a mechanical stop that allows you to trim the nominal 40mm stroke back by up to 30mm, creating a usable travel window of 10-40mm. It sets the end position but does not lock or hold the load without continuous air pressure.
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