AirTAC JSI50 Standard Air Cylinder, 50 mm Bore
Every AirTAC JSI50 configuration on one page: 65 stock order codes with strokes from 40 to 800 mm and 6 mountings, from $61.63. Pick a stroke, mounting and version to see the exact order code and price.
This combination is not a stock order code. Request a quote and we will confirm availability and price.
- 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 JSI50
The AirTAC JSI50 is a double-acting standard air cylinder with a 50 mm bore and a 20 mm piston rod. At 0.5 MPa it pushes 982 N and pulls 825 N; at 0.7 MPa that rises to 1374 N push and 1155 N pull. Force depends on bore and pressure only, so every stroke on this page gives the same output.
All JSI50 versions share 1/4" air ports, an M18×1.5 rod thread and 20.5 mm adjustable air cushions. The cylinder runs on filtered air between 0.15 and 1.0 MPa (proof 1.5 MPa), from -20 to +70 °C, at 30 to 800 mm/s. This page lists 65 stock order codes with strokes from 40 to 800 mm; the catalog maximum stroke is 1200 mm.
JSI50 Technical Specifications
| Bore size | Ø50 mm |
|---|---|
| Stock strokes | 40 – 800 mm |
| Catalog maximum stroke | 1200 mm (longer on request) |
| Acting type | Double acting |
| Port size | 1/4" (PT standard) |
| Piston rod / rod thread | Ø20 mm / M18×1.5 |
| Fluid | Air (filtered by 40 µm 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 air cushion, 20.5 mm |
Source: AirTAC Products Catalog 2026A (PDF01-P0420), JSI series ordering code and specifications.
Theoretical output force (Ø50 mm)
| Pressure | Push | Pull |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa | 1374 N | 1155 N |
Push = pressure × bore area; pull subtracts the Ø20 mm rod area. Usable force is lower because of friction and back-pressure.
How the JSI50 Order Code Is Built
| JSI50 | Series and bore (50 mm) |
|---|---|
| X100 | Stroke in mm |
| S | Built-in magnet for position sensors (blank = none) |
| LB / FA / FB / CA / CB / CR / TC | Mounting: LB foot; FA front flange; FB rear flange; CA single clevis; CB double clevis; CR rear pin clevis; TC center trunnion (blank = none) |
| G | Port thread: G = G (BSPP), blank = PT |
All AirTAC JSI50 Order Codes (65)
Each order code links to its own datasheet page. Use Select to load it into the configurator above.
| Order code | Stroke (mm) | Mounting | Magnet · Thread | Price | Select |
|---|---|---|---|---|---|
| JSI50X40 | 40 mm | Basic (no mounting) | - · PT | $61.63 | |
| JSI50X40S | 40 mm | Basic (no mounting) | S · PT | $65.36 | |
| JSI50X45S | 45 mm | Basic (no mounting) | S · PT | $65.36 | |
| JSI50X50 | 50 mm | Basic (no mounting) | - · PT | $61.63 | |
| JSI50X50S | 50 mm | Basic (no mounting) | S · PT | $65.36 | |
| JSI50X50SFA | 50 mm | FA front flange | S · PT | $73.74 | |
| JSI50X50TC | 50 mm | TC center trunnion | - · PT | $91.88 | |
| JSI50X50STC | 50 mm | TC center trunnion | S · PT | $95.60 | |
| JSI50X55 | 55 mm | Basic (no mounting) | - · PT | $63.70 | |
| JSI50X55CB | 55 mm | CB double clevis | - · PT | $74.20 | |
| JSI50X55TC | 55 mm | TC center trunnion | - · PT | $93.95 | |
| JSI50X60 | 60 mm | Basic (no mounting) | - · PT | $63.70 | |
| JSI50X60S | 60 mm | Basic (no mounting) | S · PT | $67.43 | |
| JSI50X60FA | 60 mm | FA front flange | - · PT | $72.08 | |
| JSI50X60STC | 60 mm | TC center trunnion | S · PT | $97.67 | |
| JSI50X65S | 65 mm | Basic (no mounting) | S · PT | $67.43 | |
| JSI50X65STC | 65 mm | TC center trunnion | S · PT | $97.67 | |
| JSI50X70TC | 70 mm | TC center trunnion | - · PT | $93.95 | |
| JSI50X75 | 75 mm | Basic (no mounting) | - · PT | $63.70 | |
| JSI50X75S | 75 mm | Basic (no mounting) | S · PT | $67.43 | |
| JSI50X75SLB | 75 mm | LB foot | S · PT | $71.15 | |
| JSI50X75CA | 75 mm | CA single clevis | - · PT | $73.01 | |
| JSI50X75TC | 75 mm | TC center trunnion | - · PT | $93.95 | |
| JSI50X75STC | 75 mm | TC center trunnion | S · PT | $97.67 | |
| JSI50X80 | 80 mm | Basic (no mounting) | - · PT | $65.83 | |
| JSI50X400 | 400 mm | Basic (no mounting) | - · PT | $90.22 | |
| JSI50X400S | 400 mm | Basic (no mounting) | S · PT | $93.95 | |
| JSI50X400SFA | 400 mm | FA front flange | S · PT | $102.32 | |
| JSI50X420S | 420 mm | Basic (no mounting) | S · PT | $98.13 | |
| JSI50X425 | 425 mm | Basic (no mounting) | - · PT | $94.41 | |
| JSI50X425S | 425 mm | Basic (no mounting) | S · PT | $98.13 | |
| JSI50X450 | 450 mm | Basic (no mounting) | - · PT | $94.41 | |
| JSI50X450S | 450 mm | Basic (no mounting) | S · PT | $98.13 | |
| JSI50X450STC | 450 mm | TC center trunnion | S · PT | $128.38 | |
| JSI50X470S | 470 mm | Basic (no mounting) | S · PT | $102.32 | |
| JSI50X475S | 475 mm | Basic (no mounting) | S · PT | $102.32 | |
| JSI50X480S | 480 mm | Basic (no mounting) | S · PT | $102.32 | |
| JSI50X500 | 500 mm | Basic (no mounting) | - · PT | $98.60 | |
| JSI50X500S | 500 mm | Basic (no mounting) | S · PT | $102.32 | |
| JSI50X500TC | 500 mm | TC center trunnion | - · PT | $128.84 | |
| JSI50X500STC | 500 mm | TC center trunnion | S · PT | $132.57 | |
| JSI50X515 | 515 mm | Basic (no mounting) | - · PT | $107.70 | |
| JSI50X515S | 515 mm | Basic (no mounting) | S · PT | $111.42 | |
| JSI50X516S | 516 mm | Basic (no mounting) | S · PT | $111.42 | |
| JSI50X550 | 550 mm | Basic (no mounting) | - · PT | $107.70 | |
| JSI50X550S | 550 mm | Basic (no mounting) | S · PT | $111.42 | |
| JSI50X550TC | 550 mm | TC center trunnion | - · PT | $137.94 | |
| JSI50X550STC | 550 mm | TC center trunnion | S · PT | $141.66 | |
| JSI50X560S | 560 mm | Basic (no mounting) | S · PT | $111.42 | |
| JSI50X600 | 600 mm | Basic (no mounting) | - · PT | $107.70 | |
| JSI50X600S | 600 mm | Basic (no mounting) | S · PT | $111.42 | |
| JSI50X600SFA | 600 mm | FA front flange | S · PT | $119.80 | |
| JSI50X600TC | 600 mm | TC center trunnion | - · PT | $137.94 | |
| JSI50X600STC | 600 mm | TC center trunnion | S · PT | $141.66 | |
| JSI50X640S | 640 mm | Basic (no mounting) | S · PT | $120.73 | |
| JSI50X650S | 650 mm | Basic (no mounting) | S · PT | $120.73 | |
| JSI50X650STC | 650 mm | TC center trunnion | S · PT | $150.97 | |
| JSI50X680S | 680 mm | Basic (no mounting) | S · PT | $120.73 | |
| JSI50X730STC | 730 mm | TC center trunnion | S · PT | $160.02 | |
| JSI50X750S | 750 mm | Basic (no mounting) | S · PT | $129.77 | |
| JSI50X750TC | 750 mm | TC center trunnion | - · PT | $156.30 | |
| JSI50X750STC | 750 mm | TC center trunnion | S · PT | $160.02 | |
| JSI50X800 | 800 mm | Basic (no mounting) | - · PT | $126.05 | |
| JSI50X800S | 800 mm | Basic (no mounting) | S · PT | $129.77 | |
| JSI50X800STC | 800 mm | TC center trunnion | S · PT | $160.02 |
Need a combination that is not listed? Request a quote.
Where the JSI50 Is Used
General automation
About 982 N at 0.5 MPa covers most pushing, lifting and indexing tasks.
Clamping fixtures
Rigid mountings hold the cylinder for clamps and presses.
Doors, gates and levers
Pivoting covers and brackets drive mechanisms that swing.
Choosing the Right JSI50 Configuration
Start with the stroke. Pick the exact travel your machine needs; a longer stroke adds length, weight and air consumption without adding force. If your length is not listed, request a quote and we will confirm whether it can be built.
Then choose the mounting. Basic (no code) uses the cylinder's own mounting holes. This bore is stocked with LB foot, FA front flange, CA single clevis, CB double clevis, TC center trunnion. Foot and flange mountings hold the cylinder rigid for straight-line loads; clevis and trunnion mountings let it pivot when the load moves in an arc.
Finally pick the version: S adds a magnet for position sensors.
AirTAC JSI50 FAQ
No. Every JSI50 gives about 982 N push and 825 N pull at 0.5 MPa, whatever the stroke.
1/4" ports, PT thread as standard.
Brackets: LB foot, FA front flange, CA single clevis, CB double clevis, TC center trunnion. Pick a pivoting cover or bracket when the load moves in an arc, a rigid one for straight-line loads.
Usually yes. Request a quote with the stroke, mounting and version and we will confirm whether it can be built, plus price and lead time.
0.15 to 1.0 MPa operating pressure (proof 1.5 MPa) and -20 to +70 °C on filtered air.
No. You can order a single JSI50. Orders are processed and handed to the carrier within 3-5 business days.
Buying the JSI50 from AirtacDistr
Genuine AirTAC parts
Every order code on this page is the AirTAC factory part number. Specifications follow the AirTAC Products Catalog 2026A. About us
Ready in 3-5 business days
That is our time to process the order and hand it to the carrier. No minimum order: a single piece can be ordered.
14-day returns, 1-year warranty
Return within 14 days of delivery; the buyer pays return shipping. The warranty covers defects not caused by misuse. Return policy
Engineering help
Send your application details and we will confirm the right order code, usually within 7-8 hours. Ask us
Page data checked against the live catalog on 2026-10-28.
Request a Quote for the JSI50
Send the order code, quantity and destination. We confirm price, stock and lead time, usually within 7-8 hours.