Airtac JSI Series Standard Cylinder JSI50X70TC
The AirTAC Airtac JSI Series Standard Cylinder JSI50X70TC is a genuine double acting JIS-standard air cylinder with a Ø50mm bore and 70mm 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.
- BoreØ50 mm
- Stroke70 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM18×1.5
- 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 JSI Series Standard Cylinder JSI50X70TC
Delivering 982 N of push force at 0.5 MPa, this double-acting 50 mm bore cylinder brings JIS-standard compactness to tight machinery layouts. It is purposefully shorter and more compact than an equivalent ISO 15552 cylinder of the same bore, saving valuable real estate. The extruded hard-anodized aluminum barrel features no external rods, while the two-way piston seal retains grease for a long, low-friction service life.
With a 70 mm stroke, it handles about 589 N of real work safely, which means it lifts roughly 50 kg vertically with a 2:1 margin. The unit connects via a G1/4 port and uses an M18x1.5 rod thread. Because this specific SKU lacks the -S magnet, it cannot accept CMSE or DMSE position sensors; choose the -S variant if electronic switching is required.
Airtac JSI Series Standard Cylinder JSI50X70TC Technical Specifications
| Model | Airtac JSI Series Standard Cylinder JSI50X70TC |
|---|---|
| Series | JSI JIS-standard profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| 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).
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 JSI Series Standard Cylinder JSI50X70TC
| JSI | JIS-standard profile cylinder (double-acting type). |
|---|---|
| 50 | Bore size in mm (32 / 40 / 50 / 63 / 80 / 100 / 125). |
| ×70 | 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 JSI Series Standard Cylinder JSI50X70TC Is Used
Package Diverter Gate
Actuates a routing flap on a packaging conveyor, using the 70 mm stroke to redirect cartons at high speed without consuming excessive frame width.
Clamp Arm Pivot
Secures aluminum extrusions during CNC milling via a TC trunnion mount, applying steady 0.5 MPa clamping force against the part profile.
Tote Stacking Stopper
Deploys a physical stop block to halt incoming plastic totes on a gravity roller track, lifting roughly 50 kg loads safely with a 2:1 margin.
Is the Airtac JSI Series Standard Cylinder JSI50X70TC the Right Cylinder?
When sizing this 50 mm bore, stepping down to a 40 mm yields 628 N of push at 0.5 MPa, while moving up to a 63 mm provides 1559 N. The included TC trunnion mount suits pivoting articulations, and you can pair the rod end with I, Y, F, or U knuckles. Remember that a standard cylinder drifts if air pressure drops or the valve is centered, as the end cushions only decelerate the piston near stroke limits rather than locking it. To hold a suspended load securely, install an external rod lock or a pilot-operated check valve.
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 JSI Series Standard Cylinder JSI50X70TC FAQ
This 50 mm bore model features a G1/4 port and an M18x1.5 rod thread. 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.
It is a JIS-standard profile cylinder that is shorter and more compact than an ISO 15552 cylinder of the same bore, utilizing an extruded aluminum barrel without external rods. Note that this specific SKU lacks a magnet, so it cannot host CMSE or DMSE sensors unless you specify the -S variant.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
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