The AirTAC Airtac SCJ63 Standard Cylinder SCJ63X100-30SH is a genuine double-acting SINGLE-ROD air cylinder with a rear-cap ADJUSTING SCREW: the stroke end is field-adjustable within a 30 mm range without swapping the cylinder. Ø63mm bore, 100mm nominal stroke, PT1/4 ports and adjustable end cushioning.
The SCJ63X100-30SH is a double-acting, single-rod pneumatic cylinder with a rear adjusting screw that provides up to 30 mm of field-adjustable stroke reduction. This lets you fine-tune the end position without swapping the cylinder, ideal for commissioning and format changeovers. With a 63 mm bore, it delivers 1559 N of push force at 0.5 MPa and 2805 N at 0.9 MPa, using a 20 mm diameter piston rod and PT1/4 ports.
This model is built with a built-in magnet (S) for direct mounting of CMSG/DMSG/EMSG sensors, and Viton (H) seals that extend the operating temperature range from the standard -20–70°C up to 0–150°C, making it suitable for hot or aggressive environments. The body length A(SCJ) is 197 mm, and the adjustable air cushion decelerates the piston smoothly over the final 28 mm of travel.
| Model | Airtac SCJ63 Standard Cylinder SCJ63X100-30SH |
|---|---|
| Series | SCJ adjustable-stroke tie-rod cylinder |
| Bore size | Ø63 mm |
| Nominal stroke | 100 mm |
| Stroke adjustment | Up to 30 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. |
| ×100 | Nominal (maximum) stroke length in mm. |
| -30 | 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.
Use the 30 mm adjusting screw to precisely dial in the retract stroke end during machine commissioning, eliminating the need for shims or external hard stops.
With Viton seals rated for 0–150°C, this cylinder reliably operates in autoclave doors, drying ovens, or foundry equipment where standard seals would degrade.
On packaging lines, the adjustable stroke can be periodically tweaked to compensate for mechanical wear in gripper jaws or sealing bars, maintaining consistent product quality.
Choose the SCJ63 bore when the 40 mm bore's 628 N push force is insufficient but the 80 mm bore's 2513 N is overkill. For applications that do not require field-adjustable stroke, the fixed-stroke SC63X100 is a simpler, more compact alternative. If you need to hold a position without air pressure, an external rod lock or pilot-operated check valve is required, as the stroke-adjust screw does not act as a brake.
To replace an existing unit, match the 63 mm bore, 100 mm nominal stroke, 30 mm adjustable range, PT port thread, and the -S magnet and -H Viton seal options. This is a basic mount cylinder; for pivoting loads, consider the TC centre trunnion (F-SC63TC with TCM1 bracket). For strokes of 300 mm or more, evaluate side-loading and rod buckling—an external guide or guided cylinder may be necessary.
Adjustable-stroke checklist
At 0.5 MPa, the push force is 1559 N and the pull force is 1402 N (due to the 20 mm rod area). At the maximum operating pressure of 0.9 MPa, the push force increases to 2805 N.
No. The SCJ is an AirTAC tie-rod cylinder, not an ISO 15552 cylinder. Its body length A(SCJ) is 197 mm and mounting dimensions are specific to the SCJ family. It directly replaces another AirTAC SCJ63 cylinder with the same stroke, adjust range, and port thread.
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.