Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-10
The AirTAC SAIJ200 Adjustable Cylinder SAIJ200X850-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø200mm bore and 850mm 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
- Stroke850 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 SAIJ200X850-10
The AirTAC SAIJ200X850-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits up to 10 mm of end-position tuning. This specific configuration yields a usable travel window of 840-850 mm, allowing you to dial in the exact retract distance without adding external stops.
Because the 850 mm stroke exceeds the standard 1500 mm maximum for this bore, this unit is treated as a non-standard, made-to-order item. It features a robust 40 mm carbon steel rod with an M36x2 thread, paired with 50 mm air cushions at both ends to manage the heavy kinetic energy. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE solid-state switches, though this specific SKU is supplied without a magnet.
Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-10 Technical Specifications
| Model | Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø200 mm |
| Stroke | 850 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 SAIJ200X850-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 200 | Bore size in mm. |
| ×850 | 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 SAIJ200X850-10 Is Used
Heavy Press Tuning
Dial in the exact 840-850 mm end-stop during heavy-duty press commissioning to accommodate material thickness variations without swapping cylinders.
Large Fixture Changeover
Adjust the retract position on the fly when changing large product fixtures on a line, using the 10 mm rear stopper to fine-tune the machine setup.
Oversized Material Handling
Manage the stroke end-position for oversized material handling equipment, relying on the 50 mm cushions to decelerate the massive 200 mm bore payload safely.
Is the Airtac SAIJ200 Adjustable Cylinder SAIJ200X850-10 the Right Cylinder?
Selecting this 200 mm bore cylinder is appropriate when your application requires maximum output force, as stepping down to a 160 mm bore reduces your 0.5 MPa push force from 15708 N to 10053 N. An adjustable stroke is chosen here over a fixed-stroke SAI to allow on-the-fly commissioning tweaks or product changeover adjustments within that 840-850 mm window.
When specifying this model, confirm the PT tapered port threads and select from the reduced SAIJ mounting set, which includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR options. Because the stroke is 850 mm, the long unsupported piston rod is highly susceptible to side-loading and sagging; an external guide is strongly recommended to prevent premature seal wear. Finally, note that the rear adjuster is a travel stop, not a lock, and this cylinder will not hold its load without live air pressure, so consider a SAIL or BSAI variant if load-holding is required.
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 SAIJ200X850-10 FAQ
At 0.5 MPa, the push force is 15708 N.
The rear adjusting screw acts as a stopper that lets you shorten the nominal 850 mm stroke by up to 10 mm, providing an effective travel window of 840-850 mm for fine-tuning the retract position at commissioning.
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