Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X250-100S
The AirTAC Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X250-100S is a genuine double acting, adjustable stroke JIS-standard air cylinder with a Ø40mm bore and 250mm 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
- Stroke250 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 JSIJ40X250-100S
Delivering 628 N of push force at 0.5 MPa, this 40 mm bore JIS profile cylinder is built for applications needing exact end-position tuning on site. Its hard-anodized extruded aluminum barrel omits tie rods entirely, making the body shorter and more compact than a same-bore ISO 15552 unit. The G1/4 port feeds a double-acting single-rod mechanism with a 16 mm piston rod and M14x1.5 thread.
The external adjuster provides a 100 mm extend-shortening window, meaning your usable forward stroke spans 150 to 250 mm while the retract end remains fixed. This lets you fine-tune the forward stop without swapping the cylinder, and a built-in magnet works with drop-in CMSE/DMSE sensors. Factoring in a 60% safety margin, it handles a safe working load of about 377 N, which translates to lifting roughly 32 kg vertically with a 2:1 ratio.
Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X250-100S Technical Specifications
| Model | Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X250-100S |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 250 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 JSIJ40X250-100S
| JSIJ | JIS-standard profile cylinder (adjustable-stroke type). |
|---|---|
| 40 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×250 | 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 JSIJ40X250-100S Is Used
Variable Depth Drilling Stop
Dial in the 150 to 250 mm forward travel on site to set precise drilling depths across multiple material thicknesses without changing fixtures.
Adjustable Transfer Pusher
Fine-tune the extend stroke by up to 100 mm to accommodate varying box sizes on a packaging line while maintaining a fixed retract position.
Multi-Position Divert Gate
Use the external stop screw to quickly alter the gate extension length for sorting different product profiles on the fly.
Is the Airtac JSIJ32~50 Adjustable Cylinder JSIJ40X250-100S the Right Cylinder?
When sizing this unit, the 32 mm bore offers a lighter 402 N push at 0.5 MPa, whereas stepping up to the 50 mm bore yields 982 N if your load demands more power. The 100 mm adjustable window is ideal when you need to share one spare cylinder across several stroke variants or dial in a precise end position after mechanical changes. You can mount it via FA, LB, TC, TCM1, or TCM2 brackets. The -S suffix confirms the piston magnet is present for position sensing. Because the 250 mm stroke can generate side loads, always guide the rod end to prevent binding. Note that the air cushions only decelerate the piston near the ends; use an external rod lock or pilot-operated check valve if you must hold a load securely on air loss.
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 JSIJ40X250-100S FAQ
At 0.5 MPa it provides 628 N push and 528 N pull. At 0.7 MPa it delivers 879 N push and 739 N pull. The theoretical maximum force is 128 kgf at 1.0 MPa. This 40 mm bore unit uses a G1/4 air port and features a 16 mm rod with an M14x1.5 thread.
The nominal 250 mm stroke is the maximum forward travel. An external stop screw lets you shorten the extend stroke on site by up to 100 mm, giving a usable range of 150 to 250 mm. The retract end is fixed, and this mechanism sets the end position rather than locking the load.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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