The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X1000-50 is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø50mm bore and 1000mm stroke, G1/4 air ports and adjustable end cushioning. Its no-tie-rod, hard-anodized profile barrel is more compact than an ISO 15552 cylinder of the same bore — a space-saver on tight machines.
Delivering 982 N of push force at 0.5 MPa, this 50 mm bore JIS profile cylinder brings compact power to long-stroke automation. Its extruded hard-anodized aluminium barrel omits tie rods entirely, making the overall body shorter than a same-bore ISO 15552 unit. The G1/4 port feeds a double-acting single-rod mechanism rated for 30-800 mm/s speeds.
The external stop screw provides a 50 mm adjustment window, letting you shorten the extend stroke from the 1000 mm maximum down to 950 mm directly on-site without swapping parts. This on-site end-position tuning handles about 589 N of real work safely, roughly 50 kg lifted vertically with a 2:1 margin. Note that this SKU lacks a magnet and cannot take a CMSE/DMSE sensor; the -S variant is required for position detection.
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ50X1000-50 |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 1000 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M18×1.5 |
| 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, 20.5 mm |
| Max standard stroke | Up to 1200 mm |
Specifications follow the official AirTAC JSI (JIS standard) datasheet. Confirm against the product label before installation. Thread options: PT (blank) / G. Barrel: hard-anodized aluminum profile (no tie rods).
| 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.
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×1000 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensors. |
JSI-family variants: JSI (double acting), JSID (double rod), JSIJ (adjustable stroke). Mounting: LB / FA / FB / CA / CB / CR / TC / TCM1 / TCM2. Thread PT (blank) / G.
Pushes parts off a long conveyor belt, using the 50 mm adjuster to dial in the exact 970 mm ejection point without repositioning the cylinder.
Actuates a distant sorting gate on a high-bay line, trimming the extend stroke on-site to match varying pallet depths precisely.
Squares up long workpieces on an assembly bed, using the adjustable stop to compensate for minor mechanical drift over the 1000 mm travel.
When sizing this model against neighbours, the 40 mm bore yields 628 N push at 0.5 MPa while the 63 mm bore steps up to 1559 N, so the 50 mm bore sits perfectly in the mid-range. The 50 mm adjustable window is ideal when you need to fine-tune a long extend end-position on the floor or want a shared spare across slightly different stroke variants. JSIJ mounting options include Basic, FA, LB, TC, TCM1, and TCM2. Because the 1000 mm stroke is long, always use external guides to prevent rod bending and manage side loads. Remember that the air cushion only decelerates the piston; use an external rod lock or pilot-operated check valve if you need to hold a load vertically.
Quick checklist
This 50 mm bore cylinder uses a G1/4 port and a 20 mm rod. It generates 982 N push and 825 N pull at 0.5 MPa, 1374 N push and 1154 N pull at 0.7 MPa, with a theoretical maximum of 200 kgf at 1.0 MPa.
The nominal 1000 mm stroke is the maximum extend length. An external stop screw lets you shorten the extend stroke by up to 50 mm on-site, giving a usable range of 950-1000 mm. The retract end remains fixed, and this stop is for positioning only, not for holding a load.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
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