Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40S
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 170mm 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
- Stroke170 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40S
The AirTAC SAIJ200X170-40-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty applications requiring exact end-position tuning. Featuring a 200mm bore, it delivers a substantial push force of 15708N and a pull force of 15080N at 0.5 MPa. The integrated rear adjusting screw allows you to shorten the effective travel by up to 40mm, providing a highly versatile 130-170mm usable stroke window. This built-in adjuster acts as a mechanical stop to fine-tune the retract position at commissioning, completely eliminating the need to swap out the cylinder or bolt on external stops when adapting to new product dimensions.
This model includes a piston magnet for seamless integration with AirTAC CMSE reed and DMSE electronic solid-state sensors, which seat neatly into the dual-side sensor grooves on the extruded aluminum barrel. It features a robust 40mm diameter piston rod with an M36x2 thread, crafted from SUS420J2 stainless steel (code A) for superior corrosion resistance. Operating at speeds of 30-500 mm/s, it utilizes PT tapered port threads and includes adjustable air cushions at both ends to smoothly decelerate heavy loads.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40S Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 170 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 SAIJ200AX170-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×170 | 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 SAIJ200AX170-40S Is Used
Heavy Press Tuning
Dial in the exact 130-170mm retract distance during machine setup to accommodate varying material thicknesses in large-scale metal forming and stamping presses.
Assembly Line Changeover
Quickly adjust the end-stop position during product size changeovers on automated assembly lines without replacing the cylinder or adding external mechanical stops.
Large Fixture Positioning
Position heavy structural fixtures with precision, relying on the 40mm adjustment screw to fine-tune the resting state of the 200mm bore cylinder during commissioning.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX170-40S the Right Cylinder?
Choose this 200mm bore variant when your application demands maximum thrust, such as 21991N push force at 0.7 MPa, but still requires precise variable end-stops for machine changeover. If your process requires less force, stepping down to a 160mm bore drops the 0.5 MPa push force to 10053N while retaining a similar 40mm adjustment window. The rear adjuster on this SAIJ cylinder is strictly a travel stop, not a locking device; it cannot hold a load without continuous live air pressure. For fail-safe load holding, consider the SAIL air-released lock or BSAI clamp-lock series. To replace this unit, match the 200mm bore, 170mm nominal stroke, 40mm adjustment range, PT ports, SUS420J2 rod, and the -S magnet. Note that SAIJ uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets.
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 SAIJ200AX170-40S FAQ
At 0.5 MPa, this 200mm bore cylinder provides 15708N of push force and 15080N of pull force. At 0.7 MPa, the push force increases to 21991N. The operational speed range for this bore size is 30-500 mm/s.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 170mm nominal stroke by up to 40mm, creating a 130-170mm usable travel window. It is used for fine-tuning end positions during commissioning and is not a lock; the cylinder requires live air to maintain its position.
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