Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-20S
The AirTAC Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 700mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ50 mm
- Stroke700 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM16×1.5
- CushionAdjustable, 30 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 SAIJ50 Adjustable Cylinder SAIJ50BX700-20S
The AirTAC SAIJ50X700-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel to a 680-700 mm window without adding external stops. Delivering 982 N of push force at 0.5 MPa, this SUS304 stainless steel rod model is highly resistant to corrosion. It includes a built-in magnet for position sensing.
The rear adjuster acts purely as a travel stop for end-position tuning during machine commissioning, not as a load-holding lock. Because this is a 700 mm stroke, the M16x1.5 rod should be paired with an external guide to manage side loads. It features PT tapered ports and a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) omitting FB and CA brackets.
Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-20S Technical Specifications
| Model | Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 700 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×700 | 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 SAIJ50 Adjustable Cylinder SAIJ50BX700-20S Is Used
Machine Changeover
Dial in the exact end-of-stroke position within the 680-700 mm window during product size changeovers, eliminating the downtime required to physically swap out fixed-stroke cylinders.
Variable End Stops
Provides an adjustable physical stop for diverter arms or pushers on a packaging line, allowing operators to fine-tune the retract position to match varying package dimensions.
Corrosive Setup Tuning
Leverages the SUS304 stainless steel rod for environmental resilience while providing 20 mm of stroke adjustment to perfectly time the tooling stroke at machine commissioning.
Is the Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-20S the Right Cylinder?
Choose this 50 mm bore when an application requires roughly 982 N of push force at 0.5 MPa, which is a step up from the 40 mm bore (628 N) but much lighter than the 63 mm bore (1559 N). The adjustable stroke is ideal for product changeovers, letting you dial back the travel by up to 20 mm on the fly instead of physically swapping the cylinder for a fixed-stroke SAI unit.
For any load-holding requirements without continuous air pressure, note that this plain SAIJ cylinder will not hold its position; you would need to specify an SAIL or BSAI series instead. To match this ISO 15552 replacement exactly, use bore 50, stroke 700, 20 mm adjustment, PT port thread, SUS304 rod material, and the -S magnet option compatible with CMSE reed and DMSE electronic sensors.
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 SAIJ50 Adjustable Cylinder SAIJ50BX700-20S FAQ
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. It is designed to operate at speeds ranging from 30 to 800 mm/s.
The rear adjuster screw allows you to shorten the nominal 700 mm stroke by up to 20 mm, creating a usable travel window of 680 to 700 mm. This mechanism acts as a travel stop for end-position tuning and does not lock or hold the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ50 Adjustable Cylinder SAIJ50BX700-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.