The AirTAC Airtac SCJ80 Standard Cylinder SCJ80X80-50TC is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 50 mm range without swapping the cylinder. Ø80mm bore, 80mm nominal stroke, PT3/8 ports and adjustable end cushioning.
The SCJ80X80-50TC is a double-acting, single-rod pneumatic cylinder that puts stroke-end tuning directly on the machine. Its rear-cap adjusting screw gives you up to 50 mm of fine control over the stroke end, so commissioning trials and format changeovers happen without swapping the cylinder or adding external hard stops. The 80 mm bore delivers 2513 N of push force at 0.5 MPa, rising to 4523 N at 0.9 MPa, and the 25 mm piston rod handles the side-loads common in pivoting applications.
This model ships with the TC centre trunnion mount and the matching TCM1 bracket (order code F-SC80TC), allowing the cylinder to pivot freely as it strokes. The trunnion is ideal for swinging arms, clamps, and linkages where the cylinder body must follow an arc. Ports are PT3/8, the rod thread is M20×1.5, and the 28 mm air cushion at each end decelerates the piston smoothly. Body length A(SCJ) is 239 mm, making it a compact choice for 80 mm bore adjustable-stroke tasks.
| Model | Airtac SCJ80 Standard Cylinder SCJ80X80-50TC |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø80 mm |
| Nominal stroke | 80 mm |
| Stroke adjustment | Up to 50 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT3/8 |
| Rod thread | M20×1.5 |
| 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, 28 mm |
| Max stroke | Up to 1500 mm |
Specifications follow the official AirTAC SCJ (adjustable-stroke) datasheet. The rear adjusting screw sets the stroke end position; force is the same as the equivalent single-rod SC bore. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
SCJ is single-rod, so force matches the equivalent SC bore: push uses the full bore area, pull subtracts the rod area. Actual usable force is lower than theoretical due to friction and back-pressure; size with a safety margin.
| SCJ | Adjustable-stroke tie-rod cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×80 | Nominal (maximum) stroke length in mm. |
| -50 | Adjustable-stroke range in mm (options 10/20/30/40/50/75/100). |
| -S | Optional built-in magnet for sensor position sensing. |
Related types: SC (single rod, fixed stroke), SCD (double rod), SCT (multi-position). SCJ mounting: Basic, FA, LB, TC, TCM1. Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
During machine setup, the 50 mm adjustment screw lets technicians dial in the exact stroke end for grippers, pushers, or stops without iterative cylinder swaps, cutting commissioning time on packaging and assembly lines.
On multi-product conveyors, operators can quickly reset the stroke end to match a new box or pallet size. The SCJ80X80-50TC with its centre trunnion pivots cleanly in diverter gate and sorting arm linkages.
In pressing or clamping stations, the adjustable stroke compensates for tooling wear or material thickness variation over time. The 2513 N push force at 0.5 MPa handles medium-duty holding and forming tasks.
Choose the SCJ80 when you need to dial in a stroke end between 30 mm and 80 mm without re-plumbing. If your load demands more push, step up to the SCJ100 (3927 N at 0.5 MPa); if space is tight and force can drop, the SCJ63 offers 1559 N at 0.5 MPa. For a fixed-stroke application where the end position never changes, the standard SC80 cylinder is simpler and slightly shorter. When replacing an existing SCJ80, match the nominal 80 mm stroke, the 50 mm adjust range, the PT3/8 port, and the TC centre trunnion mounting to ensure drop-in fit. For strokes of 300 mm or more on any 80 mm bore, evaluate side-loading and rod deflection—add an external guide rail or switch to a guided cylinder if the load is not perfectly axial.
Adjustable-stroke checklist
Because it is a single-rod cylinder, push and pull forces differ. At 0.5 MPa, push force is 2513 N and pull force is 2268 N. At the maximum operating pressure of 0.9 MPa, push force reaches 4523 N. The theoretical maximum at 1.0 MPa is 513 kgf.
It will fit if your current cylinder is an AirTAC SCJ80 with an 80 mm nominal stroke, a 50 mm adjustable range, PT3/8 ports, and centre trunnion (TC) mounting. The TC mount includes the TCM1 bracket; verify your existing pivot pin diameter matches the bracket. The adjusting screw only sets the stroke end—it does not lock the piston or hold the load if air pressure is lost.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.