Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 170mm 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.
- BoreØ40 mm
- Stroke170 mm
- Port sizeG1/4
- Acting typeDouble acting, adjustable stroke
- Rod threadM14×1.5
- CushionAdjustable, 20.5 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 JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S
Generating 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder brings on-site extend adjustability to tight machinery. Its extruded hard-anodized aluminium barrel omits tie rods entirely, making the body noticeably shorter and more compact than a same-bore ISO 15552 unit. The G1/4 port feeds the 16 mm rod, delivering a practical safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 safety margin.
The -30 code defines a 30 mm external stop-screw window, letting you fine-tune the extend end position from 140 to 170 mm without swapping the cylinder. Because the -S suffix is present, a built-in piston magnet reads CMSE or DMSE switches that drop directly into the side grooves. Remember that the adjustable stop sets the end position but does not lock the load; a plain cylinder drifts on air loss, so fit an external rod lock or pilot-operated check valve if you need to hold a suspended weight.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 170 mm |
| Acting type | Double acting, adjustable stroke |
| Port size | G1/4 |
| Rod thread | M14×1.5 |
| 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).
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×170 | 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.
Where the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S Is Used
Dial-In Clamping
Use the 30 mm extend window to fine-tune the clamping depth on varying workpiece heights without machining new spacers.
Adjustable Divert
Set the exact extend position to deflect different package sizes on a line, shifting the stop point from 140 to 170 mm as needed.
Shared Spare
Keep one 170 mm cylinder in stock and shorten the stroke on-site to cover 150 mm or 160 mm machine duties during breakdowns.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S the Right Cylinder?
When sizing this unit, step down to a 32 mm bore for lighter 402 N tasks, or step up to a 50 mm bore if you need 982 N of push at 0.5 MPa. The adjustable stroke is perfect when you want one shared spare across multiple stroke variants or need to dial in a precise end stop on-site. You can mount it using FA, LB, TC, TCM1, or TCM2 brackets. The -S magnet supports CMSE/DMSE sensors for position confirmation. Because the 170 mm stroke exceeds 300 mm, always guide the load to prevent excessive side-load wear on the rod seals.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT / G / NPT)
- ✓ 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 Set cushions to minimum, then release gradually.
- check Use correct mounting accessory (LB/FA/FB/CA/CB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X170-30S FAQ
At 0.5 MPa it pushes 628 N and pulls 528 N. At 0.7 MPa it pushes 879 N and pulls 739 N. The theoretical maximum force is 128 kgf at 1.0 MPa. It uses a G1/4 port and a 16 mm rod.
The 170 mm nominal stroke is the maximum. The external adjuster lets you shorten the extend stroke by up to 30 mm on-site, giving a usable extend range of 140 to 170 mm. The retract end remains fixed, and the stop screw only sets the end position without locking the load.
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