The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X30-10S is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 10 mm range without swapping the cylinder. Ø63mm bore, 30mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X30-10S is a double-acting, single-rod pneumatic cylinder with a field-adjustable stroke end, giving you a 10 mm fine-tuning range on the 30 mm nominal stroke. The rear-cap adjusting screw lets commissioning technicians dial in the exact end position without swapping the cylinder or adding external hard stops. With a 20 mm rod and PT1/4 ports, this 63 mm bore unit delivers 1559 N of push force at 0.5 MPa, rising to 2805 N at the 0.9 MPa maximum operating pressure.
This model includes a built-in magnet (-S suffix), so CMSG, DMSG, or EMSG reed and solid-state sensors clamp directly onto the tie-rod barrel for reliable end-of-stroke or mid-stroke position feedback. The SCJ body length A is 197 mm, and the adjustable air cushion decelerates the piston smoothly over the final 28 mm of travel. As a tie-rod cylinder, it is not an ISO 15552 profile unit, but its mounting pattern accepts the FA front flange, LB foot, or TC centre trunnion from the SCJ accessory subset.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X30-10S |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 30 mm |
| Stroke adjustment | Up to 10 mm (rear adjusting screw) |
| Acting type | Double acting (single rod) |
| Port size | PT1/4 |
| Rod thread | M16×1.5 |
| 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×30 | Nominal (maximum) stroke length in mm. |
| -10 | 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 commissioning, the 10 mm rear screw adjustment lets integrators precisely set the actuator end stop to match tooling or fixture positions without fabricating custom spacers, speeding up the runoff process.
In high-cycle pusher or diverter stations, the adjustable stroke end can be periodically tweaked to compensate for wear on the workpiece contact face or tooling, maintaining consistent placement accuracy over the cylinder's service life.
Packaging and assembly lines that switch between product sizes use the SCJ63X30-10S to quickly adjust the push or clamp stroke end by up to 10 mm, eliminating the downtime of swapping fixed-stroke cylinders for each format.
Choose the SCJ63 when you need the 1559 N push force at 0.5 MPa that this 63 mm bore provides. If your application can work with less force, stepping down to the 50 mm bore SCJ50 series reduces push to 982 N at the same pressure, saving space and air consumption. For higher force demands, the 80 mm bore SCJ80 delivers 2513 N push at 0.5 MPa. The adjustable-stroke SCJ is the right pick when the machine requires periodic end-position changes—such as format changeovers or wear take-up—where a fixed-stroke SC would need to be physically replaced or shimmed. A direct replacement must match the 63 mm bore, 30 mm nominal stroke, 10 mm adjust range, PT port thread, and the -S magnet option. If your load needs to hold position without live air pressure, an external rod lock or pilot-operated check valve is required; the adjusting screw and air cushion do not provide any holding or braking function.
Adjustable-stroke checklist
At the standard 0.5 MPa operating pressure, this single-rod cylinder produces 1559 N of push force (full bore area) and 1402 N of pull force (rod-side area subtracted). At the maximum operating pressure of 0.9 MPa, the push force reaches 2805 N. The theoretical force at 1.0 MPa is 318 kgf.
A rear-cap adjusting screw lets you shorten the stroke end by up to 10 mm from the 30 mm nominal maximum, without dismounting the cylinder. Pick the SCJ over a fixed-stroke SC when your application needs on-machine stroke fine-tuning for setup, format changes, or wear take-up. If the stroke is permanently fixed and never needs adjustment, the standard SC series is the simpler, cost-effective choice.
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.