Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20
The AirTAC Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 800mm 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
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2
- CushionAdjustable, 50 mm
About the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20
The AirTAC SAIJ200X800-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 780 to 800 mm usable travel window. Delivering 15708 N of push force at 0.5 MPa, it handles massive loads while allowing precise end-position tuning during commissioning without external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible positioning.
This unit utilizes a SUS420J2 stainless steel rod for superior corrosion resistance and features PT tapered port threads. Operating at speeds of 30-500 mm/s, it supports mounting interfaces Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster functions strictly as a travel stop for deceleration, not a load-holding lock.
Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAIJ200AX800-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SAIJ200AX800-20 Is Used
Heavy Press Tuning
Fine-tune the 780-800 mm end-stop on large presses to accommodate varying material thicknesses during production changeovers.
Pallet Positioning
Adjust the exact retraction point for heavy pallet stops without physically remounting the cylinder or adding external spacers.
Large Assembly Jigs
Dial in the exact end-of-stroke contact point on oversized assembly fixtures to compensate for mechanical wear over time.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200AX800-20 the Right Cylinder?
Choose this 200 mm bore cylinder when 15708 N of thrust at 0.5 MPa is required, stepping down to a 160 mm bore (10053 N) if your load demands less force. The 20 mm adjustable stopper is ideal for fine-tuning a long 800 mm travel end-position during machine setup or product changeover, avoiding the need to swap out a fixed-stroke SAI cylinder. Because the stroke is 800 mm, an external guide is strongly recommended to manage side loads on the long unsupported rod. For load-holding without live air pressure, select the SAIL or BSAI series instead, as the SAIJ adjuster is not a brake.
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 SAIJ200AX800-20 FAQ
At 0.5 MPa operating pressure, this 200 mm bore cylinder provides 15708 N of push force and 15080 N of pull force. The maximum operating speed is 500 mm/s.
The rear adjuster acts as a mechanical stopper that allows you to shorten the 800 mm nominal stroke by up to 20 mm, providing a usable travel window of 780 to 800 mm for fine-tuning end positions.
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